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Influence of dietary amino acid density, crude protein level, and feed scheduling on performance and carcass traits of Ross 708 female broilers slaughtered between 1.9 and 2.0 kg J. Appl. Poult. Res. (IF 1.9) Pub Date : 2024-03-12 C.W. Maynard, C.L. Williams, M.T. Kidd
Adjustments in dietary amino acid density, CP levels, and feed scheduling influence broiler performance, carcass traits, and integrator profitability. Therefore, two experiments were conducted to assess the former factors on the live performance and carcass traits of female Ross 708 broilers grown for a high-value bone-in market (36 d processing). Experiment 1 evaluated four amino acid densities while
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Assessing the impact of Spirulina platensis and organic trace minerals on the incidence of bacterial chondronecrosis with osteomyelitis lameness in broilers using an aerosol transmission model J. Appl. Poult. Res. (IF 1.9) Pub Date : 2024-03-12 Andi Asnayanti, Amer Hasan, Khawla Alharbi, Intisar Hassan, Walter Bottje, Samuel J. Rochell, Marco A. Rebollo, Michael T. Kidd, Adnan A.K. Alrubaye
is an emerging poultry diet source due to its essential nutrition and bioactive ingredients. microalgae confers beneficial effects on broiler's growth performance, immune response, and antioxidant activity. We investigated the effect of on BCO lameness, one of the most driving factors for economic and animal well-being concerns in the poultry industry. Additionally, supplementation of Availa® ZMC containing
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Impacts of on-farm water sanitation practices on microbial hygiene in poultry waterlines and efficacy of sodium hypochlorite-based product on foodborne pathogens J. Appl. Poult. Res. (IF 1.9) Pub Date : 2024-03-12 Rabin Raut, Agnes Kilonzo-Nthenge, Tobenna Aniume, Ashesh Basnet, Susan Watkins, Pramir Maharjan
The microbial water quality of poultry water supplies can be correlated to bird health, livability, overall performance, and human food safety. On-farm microbial evaluations were conducted to understand microbial hygiene of poultry waterlines based on water sanitation practices. With on-farm study I, two farms were selected: Farm A and Farm B; that did not practice water sanitation consistently during
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Interactive effects of calcium, phosphorus, and exogenous phytase on growth performance and bone ash in broilers under Eimeria or necrotic enteritis infections: a systemic review and meta-analysis J. Appl. Poult. Res. (IF 1.9) Pub Date : 2024-02-28 Hanyi Shi, Jinquan Wang, Woo Kyun Kim
Although several studies have explored the influence of calcium (), phosphorus (), and exogenous phytase () on growth performance and bone mineralization responses to dietary nonphytate P () levels in broilers, there remains a gap in meta-analytical research focusing on these factors under or necrotic enteritis () infections. To address this gap, we conducted a systematic review and meta-analysis of
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Effect of Saccharomyces cerevisiae dietary supplementation (Original XPCTM) and stocking density on production performance and egg quality in white egg strain laying hens J. Appl. Poult. Res. (IF 1.9) Pub Date : 2024-02-24 Kelly E. Brannan, R. Wysocky, Kenneth E. Anderson
The ongoing industry trend towards less intensive management systems is of interest to table egg producers, with antibiotic usage and stocking density being of primary concern. The present trial evaluated the effect of a fermentation product and stocking density on hen production performance and egg quality. Eleven white egg layer strains were equally represented in cages at either high (471 cm per
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Effects of mushroom stump waste inclusions to broiler diets on amino acid digestibility and d1-21 performance J. Appl. Poult. Res. (IF 1.9) Pub Date : 2024-02-23 L.S. Erb, C.M. Poholsky, A.M. Lyons, J.W. Boney
Mushroom cultivation in the United States generates a considerable waste stream of inutile mushroom stumps. Stumps were dried and ground to create the current study's mushroom stump waste product. This study aimed to determine the energy and amino acid profile of MSW and the optimal inclusion of MSW in broiler diets based on performance measurables and amino acid digestibility. The TME of MSW (1,173
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Evaluation of corn particle size on the growth performance, intestinal permeability, pellet quality, and litter moisture of turkey hens raised without antibiotics J. Appl. Poult. Res. (IF 1.9) Pub Date : 2024-02-21 A.M. Lyons, J.S. Moritz, J.W. Boney, M.E. Persia
An experiment was conducted to determine the effects of corn particle size () on turkey hen poult performance, intestinal permeability (), and litter dry matter. A total of 1,584 Hybrid turkey hen poults were raised in floor pens from 0 to 42 d. Poults were fed a crumbled starter 1 and pelleted starter 2 diet. The experiment was a 2 × 2 factorial with CPS in diet phase starter 1 (fine and coarse) and
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Applied Research Note: Development and validation of a highly specific polyclonal antibody targeting neuraminidase of novel H3N8 avian influenza virus J. Appl. Poult. Res. (IF 1.9) Pub Date : 2024-02-17 Gaojie Chen, Jieheng He, Zhanfei Yan, Xinyu Zhang, Jing Liu, Runzhi Liu, Zhipeng Liang, Shujian Huang, Feng Wen
Avian influenza viruses () of the H3N8 subtype pose a significant threat to both the poultry industry and public health. This study aimed to develop and validate a highly specific polyclonal antibody targeting the neuraminidase () protein from a novel H3N8 AIV, which exhibits tri-basic hemagglutinin cleavage sites and shares genetic proximity to recent human isolates. The NA gene of H3N8 AIV was cloned
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Nitrogen corrected apparent metabolizable energy (AMEn), apparent ileal digestibility (AID) of amino acids (AA), and growth performance of thermally processed and fermented food waste for broilers12 J. Appl. Poult. Res. (IF 1.9) Pub Date : 2024-02-15 Nelsa M. Beckman, Phillip A. Lancaster, Mason J. Engnell, Haley K. Otott, Allison K. Blomme, Patrick A. Badger, Diego A. Lopez, Yi Zheng, Raghavendra G. Amachawadi, Melissa A. Schrader, Charles R. Stark, Chad B. Paulk
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Dietary violacein suppresses the deleterious effects of experimentally induced coccidiosis in broiler chickens J. Appl. Poult. Res. (IF 1.9) Pub Date : 2024-02-11 Shan R. Nawarathne, Hyesuk Kim, Myunghwan Yu, Hyun-Min Cho, Jun-Seon Hong, Yubin Kim, Samiru S. Wickramasuriya, Sungtaek Oh, Kyu-Yeol Son, Min-Ah Park, Kyungmin Lee, Hwi-Jae Kim, Young-Joo Yi, Jung-Min Heo
Poultry coccidiosis is a catastrophic parasitic disease and the industry is currently seeking alternative compounds to replace conventional antibiotics. Accordingly, the current study determined the effect of dietary violacein supplementation on growth performance and anticoccidial indices of -infected broiler chickens. A total of 336-day-old “Ross 308” broiler chicks were allotted to 6 treatments:
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Effects of essential oils and betaine on male broilers raised on used litter seeded with coccidia oocysts J. Appl. Poult. Res. (IF 1.9) Pub Date : 2024-02-10 C.J. Fritzlen, K.M. Wilson, J.M. Samper, M.E. Persia
An experiment was conducted to evaluate the effects of essential oils (garlic and cinnamon extracts) and betaine on growth performance and oocyst shedding of 42-d old male broilers raised on used litter seeded with coccidia oocysts. Treatments included: negative control (NC) a non-supplemented diet with broilers raised on fresh shavings, positive control (PC) the same non-supplemented diet with broilers
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Effect of metabolizable energy levels and conditioning temperatures on broiler performance, processing yield, footpad lesions, and nutrient digestibility from 1 to 42 days of age J. Appl. Poult. Res. (IF 1.9) Pub Date : 2024-02-09 J.R. Hernandez, J.P. Gulizia, J.I. Vargas, S. Thuekeaw, E.G. Guzman, C. Tonial Simões, W.J. Pacheco
This study evaluated the main effects and interactions of two ME levels and three conditioning temperatures on broiler performance, processing yield, footpad lesions, tibia ash, and nutrient digestibility from 1 to 42 d of age. A total of 1,350 d-old YPM x Ross 708 male broilers were randomly distributed in 54 floor pens and assigned to six treatments (9 replicates/treatment). Diets were formulated
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Effects of the composition of the pre-peak diet fed from 18 to 29 wk of age on egg production, egg quality, and the development of the gastrointestinal tract of brown-egg laying hens from 18 to 61 wk J. Appl. Poult. Res. (IF 1.9) Pub Date : 2024-02-08 A.F. De Juan, R. Scappaticcio, L. Aguirre, G.G. Mateos, L. Cámara
The effects of the nutritional characteristics of the diet fed from 18 to 29 wk of age on egg production and the development of the gastrointestinal tract () were studied in brown egg-laying hens from 18 to 61 wk of age. The experimental design was completely randomized with 4 pre-peak diets that contained 2.68 Mcal AMEn/kg, organized as a 2 × 2 factorial, with the standardized ileal digestible lysine
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Effect of Grinding and Pellet Dimensions on Performance, Digestive Tract Functionality and Feeding Behavior of Broiler Chickens Fed Diets Based on Wheat and Maize J. Appl. Poult. Res. (IF 1.9) Pub Date : 2024-02-08 B. Svihus, C.G. Storkås, M.K. Neteland, S.E.O. Reierstad, S. Dhakal, H. Hetland
Research has indicated that the size of the pellet can be increased beyond the current industrial practice of using 3-4 mm pellets, without negative effects on performance and with improvement in pelleting efficiency as a result. To further elucidate the capacity of broilers for large pellets, a coarse wheat- and maize-based diet ground using either a hammer mill or a roller mill was pelleted using
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Symposium: National Extension Workshop: Experiences with conducting poultry extension programs for international audiences J. Appl. Poult. Res. (IF 1.9) Pub Date : 2024-01-23 Jacqueline Jacob, Jon Moyle, Darrin Karcher, Ken Koelkebeck
Poultry extension programs, which target international audiences, can both be challenging and rewarding. Part of the challenge, for example, is to learn about problems associated with a poultry operation and being able to communicate effective recommendations to management personnel effectively, particularly when there is a language barrier. Benefits from international work include: 1) new ways to
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Evaluation of the Immune Effect of a Triple Vaccine Composed of Fowl Adenovirus Serotype 4 Fibre-2 Recombinant Subunit, Inactivated Avian Influenza (H9N2) Vaccine and Newcastle Disease Vaccine Against Respective Pathogenic Virus Challenge in Chickens J. Appl. Poult. Res. (IF 1.9) Pub Date : 2024-01-23 Mengyue Wang, Dongying Du, Zhe Sun, Xiaolin Geng, Wujie Liu, Suling Zhang, Yanwei Wang, Wenqiang Pang, Kegong Tian
Fowl adenovirus, Avian influenza (AI), and Newcastle disease (ND) are prominent viral infectious diseases that pose a significant threat to the global poultry industry, resulting in substantial economic loss. To mitigate the occurrence of hydropericardium syndrome (HPS), a triple vaccine was developed by combining the nanoparticle-like fibre-2 protein with the inactivated H9N2 avian influenza virus
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Effect of nutritional pen construction on the thermal performance of broilers J. Appl. Poult. Res. (IF 1.9) Pub Date : 2024-01-22 K.G. Griggs, J.D. Davis, J.L. Purswell, G.D Chesser, C.M. Edge, J.C. Campbell
Abstract not available
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In ovo injection dosage of Lactobacillus rhamnosus on intestinal health and microbial composition of yellow broilers with or without Eimeria challenge J. Appl. Poult. Res. (IF 1.9) Pub Date : 2024-01-20 N. Huang, Y. Ma, J. Chai, Z. Li, X. You, X. Wang, Y. Huang, H. Shi
Probiotic bacteria could be administrated to broilers using the in ovo injection technique during 17.50 and 19.20 d of incubation to accelerate microbial maturation in the intestinal tract. The effects of Lactobacillus rhamnosus (LR) injected in-ovo on intestinal morphology, mRNA expressions of intestinal health-related genes, and selected intestinal microbial of yellow broilers with or without Eimeria
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Effect of Brooding Conditions on the Blood Chemistry and Performance of Turkey Poults J. Appl. Poult. Res. (IF 1.9) Pub Date : 2024-01-17 Rocio Crespo, Jesse Grimes
Hematologic parameters and the levels of certain plasma metabolites offer an objective measure, and real-time insight into the physiological status of an animal. We hypothesized that blood chemistry analysis in brooding poults varies with even minor differences of temperature and can affect poult performance. A total of 2240 1-d-old turkey hens were assigned randomly to one of 4 treatments [Control
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Energy and ether extract digestibility of commercially available lipids fed to broilers J. Appl. Poult. Res. (IF 1.9) Pub Date : 2024-01-17 Brian J. Kerr, William A. Dozier, Derrell T. Lee
Energy is an expensive component of diets with lipids providing a concentrated energy source to meet these needs; in addition, supplementary lipids affect milling efficiency and diet palatability. Because of the increased use of lipids as feedstocks in renewable energy production, typical fats and oils are becoming more limited and costly to the livestock industry necessitating the need to source and
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Role of stressors in histomoniasis transmission and development in turkeys J. Appl. Poult. Res. (IF 1.9) Pub Date : 2024-01-11 Catherine Fudge, Olivia Wedegaertner, Katherine Cupo, Christina Sigmon, Robert Beckstead, Frank Edens, Chongxiao (Sean) Chen
The aim of the current study was to evaluate the influence of stressors on histomoniasis development and lateral transmission of H. meleagridis. In the following experiments, half of the birds in each pen were inoculated with H. meleagridis to study disease transmission and progression. Birds were infected at 5-weeks of age (experiment 1&3) or at 2 weeks of age (experiment 2). Disease progression was
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The response of laying hen production, performance, bone health, and inositol levels to limestone particle size ratios and phytase levels supplemented during the post-peak period (40-60 weeks of age) J. Appl. Poult. Res. (IF 1.9) Pub Date : 2024-01-14 C.A. Waters, K.G.S. Wamsley, M.A. Elliot, M. Bedford, C Wyatt, W.K. Kim, P.A. Adhikari
As hens age, egg production and quality decline. Producers are interested in extending the production of their hens to help with production costs and demand. The objective of this study was to investigate the role of the ratio of fine (F) and coarse (C) limestone and exogenous phytase at standard and superdosing levels on performance and egg quality of post-peak hens from 40-60 weeks of age. A total
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Applied Research Note: Microbial composition of the biofilm of poultry drinking water system J. Appl. Poult. Res. (IF 1.9) Pub Date : 2024-01-10 Tolulope T. Ogundipe, Samantha Beitia, Tomi Obe
Ensuring good water quality is one of the key management strategies to promote optimal broiler health and performance. A few studies have assessed the microbial status of drinking water for poultry, but there is insufficient information on biofilm in the drinking water lines within the poultry housing facilities. The buildup of microbes in the drinking water system could potentially result in biofilm
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Applied Research Note: Maternal flaxseed diet did not affect body weight of broiler chickens diagnosed with novel avian reovirus and infectious bronchitis J. Appl. Poult. Res. (IF 1.9) Pub Date : 2024-01-08 R.H. Whittle, E.G. Kiarie, T.M. Widowski
Feeding breeder hens diets enriched with omega-3 fatty acids (n-3 FA) has previously been shown to increase their progeny's immunocompetence. During an experiment to assess the effects of maternal-fed n-3 FA on broiler behavior, broiler chickens experienced an unexpected disease outbreak. Here, we present the broiler offspring's body weight, uniformity, and feed intake data. Broiler breeders were fed
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Applied Research Note: Survival of Escherichia coli and temperature development during composting of chicken manure with a typically low carbon/nitrogen ratio and moisture content J. Appl. Poult. Res. (IF 1.9) Pub Date : 2024-01-05 C. Thomas, C. Idler, C. Ammon, T. Amon
The presence of pathogens, e.g., Escherichia coli (E. coli), in chicken manure can potentially lead to serious infections and foodborne diseases when spread on land as organic fertilizer. Therefore, it is essential to inactivate these bacteria before land application. The aim of the present study was to determine the survival of E. coli and the temperature development in compost piles during composting
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Effect of peas and pea products in diets for broiler chickens with consideration of the intestinal microbiota J. Appl. Poult. Res. (IF 1.9) Pub Date : 2023-12-24 A.I. Kirn, W. Vahjen, P.A. Weindl, P. Hofmann, J. Zentek, G. Bellof
In addition to the whole white-flowered pea, pea protein concentrates and pea hulls can be utilized in animal nutrition. In particular, fermentable carbohydrates and fibers in peas and pea products seem to contribute to intestinal health and health maintenance in poultry, due to their prebiotic effect on the intestinal microbiota. This study was conducted to investigate the effect of different proportions
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Stocking density within chick transport boxes: effects on leghorn chick stress and box microclimate J. Appl. Poult. Res. (IF 1.9) Pub Date : 2023-12-17 S. Jhetam, T. Shynkaruk, K. Buchynski, A.G. Van Kessel, T.G. Crowe, K. Schwean-Lardner
Recommendations for the optimal stocking density (SD) of chicks within transport boxes have not previously been published, with current recommendations lacking scientific support. As a result of concerns from welfare organizations regarding high SD in delivery boxes, a field trial was conducted at a commercial hatchery to understand SD effects on chick stress and box microclimate. Lohmann LSL-Lite
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Understanding how high pellet-to-fine ratio feed impacts on-farm nutrient segregation over time J. Appl. Poult. Res. (IF 1.9) Pub Date : 2023-12-15 C.M. Poholsky, J.W. Boney
On-farm nutrient segregation is influenced by manufacturing techniques, pellet-to-fine ratio (P:F), and feed line length. Additional research to understand nutrient segregation over time is warranted. Therefore, a study was conducted to determine how feed and nutrients travel throughout a commercial poultry house over a five-day period. High P:F feed (85:15) was fed to commercial turkeys as part of
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Microbiocenosis of the chicken ceca: impact of in ovo delivered bioactive substances, heat stress, and antibiotic growth promoters J. Appl. Poult. Res. (IF 1.9) Pub Date : 2023-12-15 S. Oladokun, D. Adewole
The chicken gut microbiota plays important roles in host physiology and well-being. It can be impacted by several management and environmental factors like the use of antibiotic growth promoters (AGP) and heat stress (HS). Probiotics, essential oils (EO), and vitamins (such as folic acid) are bioactive substances that could potentially modulate the gut microbiota and promote its resilience to stressful
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Impact of early feeding of highly available carbohydrate source on subsequent growth performance, carcass traits, blood biochemical parameters, and intestinal morphology of broilers J. Appl. Poult. Res. (IF 1.9) Pub Date : 2023-12-15 A.R. Rostamkhani, M.H. Shahir, A. Lemme, I.J. Anarkooli, Z. Abdi
The aim of this study was to investigate the effects of early dextrose (Dex) feeding on subsequent growth performance of broilers. A total of 700 male day-old broiler chicks were randomly allocated into 50 floor pens (in a balanced completely randomized design with 2 treatments) receiving either a control corn–soybean meal-based diet (control treatment) or a diet in which corn was partially (5%) replaced
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Influence of Citrus sinensis seed powder on growth performance, morphological and histological development of the small intestine of broiler chickens J. Appl. Poult. Res. (IF 1.9) Pub Date : 2023-12-09 T. Parobali, B. Adjei-Mensah, T. Songuine, T. Yarkoa, S.D. Karou, K. Eklu-Gadegbeku
Citrus sinensis (sweet orange) seeds are sources of significant quantities of bioactive compounds and dietary fiber which have shown a range of biological activities in humans but are essentially discarded with abundant waste production. The aim of this study was to evaluate the impact of C. sinensis seed powder on the morphological and histological development of the small intestine of broiler chickens
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Effects of spore-forming Bacillus probiotics on growth performance, intestinal morphology, and immune system of broilers housed on deep litter J. Appl. Poult. Res. (IF 1.9) Pub Date : 2023-12-07 I.V. Popov, V.S. Skripkin, M.S. Mazanko, E.E. Epimakhova, E.V. Prazdnova, O.V. Dilekova, S.P. Dannikov, I.V. Popov, V.I. Trukhachev, E.I. Rastovarov, T.N. Derezina, N.A. Kochetkova, R.M. Weeks, A.M. Ermakov, M.L. Chikindas
Aim of the Study: To evaluate the effects of feed supplementation of Bacillus subtilis KATMIRA1933 (0.1%), B. subtilis KB41 (0.1%), and Bacillus amyloliquefaciens KB54 (0.1%) probiotics on growth performance, biochemical blood parameters, intestinal morphology, and the immune system of Ross 308 broilers housed on deep litter. Methods and Results: A total of 160 newly hatched Ross 308 broilers were
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Applied Research Note: Evaluation of head removal following euthanasia by cervical dislocation on latency insensibility and death on broiler welfare J. Appl. Poult. Res. (IF 1.9) Pub Date : 2023-12-01 A.P. Jackson, D.V. Bourassa, B.I. Baker-Cook
The impact of head removal during cervical dislocation on bird welfare is currently unknown. In this study, broilers (n = 180; 35, 44, and 50 d of age) were assigned either euthanasia by cervical dislocation with a head removal (HR) or cervical dislocation only (CDO) treatment to evaluate their behavioral and reflexive response. The HR treatment birds were decapitated in the space between the skull
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Applied Research Note: a perspective study to assess key traits and competencies important to poultry industry management personnel J. Appl. Poult. Res. (IF 1.9) Pub Date : 2023-11-22 K.M. Downs, J.P. Gulizia
A prospective online survey instrument was designed to identify skills, traits, and competencies perceived important for career success by those in various management levels of the poultry industry. The survey instrument consisted of 26 questions. Questions assessed the importance of personality characteristics and competencies, and evaluated the effectiveness of industry recruitment activities. Principal
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Field report: Methods for assessing laser environmental enrichment application in commercial broilers J. Appl. Poult. Res. (IF 1.9) Pub Date : 2023-11-17 M.M. Meyer, A.K. Johnson, C.A. Leyk, J.L. Tieberg, A.B. Stephan, E.A. Bobeck
Sensory environmental enrichment aimed to induce active behavior is sparse in the literature and nonexistent in commercial broiler houses. Laser enrichment previously shown to be successful in stimulating broiler exercise while improving growth performance in a research setting was implemented in 2 commercial broiler houses. Each house contained alternating sections outfitted with 3 laser devices projecting
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Investigating the effect of pelleting on the particle size of commercial poultry feeds: a case study J. Appl. Poult. Res. (IF 1.9) Pub Date : 2023-10-31 M. Naeem, M.R. Bedford, E.J. Burton, M.R. Azhar
A study was conducted to investigate the effect of pelleting on the particle size of commercial poultry feeds. A total of 38 feed samples each in mash and pellets were collected from commercial poultry feed mills and analyzed for particle size determined as geometric mean diameter (GMD). Mash samples were dry sieved while pellets were wet sieved. The results showed that mash GMD significantly reduced
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Azomite, a dacitic (rhyolitic) tuff breccia, included at 0.25% in feed manufactured with 32, 38, and 45 mm pellet die thicknesses increased pellet production rate by 5.0, 7.9, and 11.8%, respectively J. Appl. Poult. Res. (IF 1.9) Pub Date : 2023-10-31 L.E. Knarr, K.M. Bowen, J. Ferrel, J.S. Moritz
Azomite (AZM) has been shown to increase pellet production rate (PPR) when included in corn and soybean meal-based diets containing dicalcium phosphate and dried distillers’ grains with solubles. It is presumed that these increases in PPR are due to the scouring and lubrication properties associated with AZM. The objective of this study was to determine the effect of AZM (0.25% diet inclusion) on PPR
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Reduction of cecal colonization and fecal shedding of Salmonella Typhimurium in broilers fed proprietary zinc- or manganese-amino acid complexes J. Appl. Poult. Res. (IF 1.9) Pub Date : 2023-10-31 K. Anderson, R. Burin, M. Rebollo, E. Krushinskie, S. Dridi, S. Carlson
Intestinal Salmonella colonization of chickens represents one of the most important food safety hazards. Mitigating this problem is challenging since Salmonella is a commensal in poultry. In this study, we assessed the ability of proprietary zinc-amino acid and manganese-amino acid complexes to reduce Salmonella colonization and shedding in commercial broilers receiving such trace minerals in the finisher
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Effect of supplementing a multi-carbohydrase enzyme complex to corn–soy-based diets on growth performance, intestinal digesta viscosity, and carcass traits of broiler chickens J. Appl. Poult. Res. (IF 1.9) Pub Date : 2023-10-21 H. Leyva-Jimenez, Y. Burden, C. Soto, K. McCormick, A. Woodward, B. Dirks
Poultry feed could represent 70% of the total production costs and with the constant increase in feedstuffs prices; there is a big interest in reducing the cost of feed globally. The use of multi-carbohydrase enzymes (MCE) to increase the nutritional value of ingredients by reducing the harmful effects of nonstarch polysaccharides could represent significant cost savings for the poultry industry. Thus
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Applied Research Note: Influence of dietary fat and crystalline amino acid inclusion on broiler diet formulation and subsequent pellet quality J. Appl. Poult. Res. (IF 1.9) Pub Date : 2023-10-21 K.M. Dunmire, J. Lee, K. Haydon, C.R. Stark, C.B. Paulk
A total of 3 broiler diets were pelleted to determine the effects of diet formulation on pellet quality. Dietary treatments consisted of corn and soybean meal-based control, the control with crystalline valine (Val), and the control with crystalline Val and isoleucine (Ile). As crystalline amino acids (AA) increased in the diets, corn concentrations increased as soybean meal and the fat source were
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Current state of breast meat quality in standard-yielding broiler strains J. Appl. Poult. Res. (IF 1.9) Pub Date : 2023-10-19 C. Hammemi, A. Askri, M.-P. Létourneau-Montminy, N. Alnahhas
The purpose of this study was to evaluate and compare the state of breast meat quality in the 2 most used standard-yielding broiler chicken strains on today's market: Cobb 500 and Ross 308. To achieve this, chicks from both sexes of both strains (n = 108 per strain and sex) were placed in a randomized complete block design (4 groups × 4 replicates in 4 blocks) and fed a standard starter, grower, and
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Impact of stunning method on blood loss in broilers during exsanguination with 2 different neck cut methods J. Appl. Poult. Res. (IF 1.9) Pub Date : 2023-10-18 R.C. Osborne, C.E. Harris, R.J. Buhr, B.H. Kiepper
With over 9 billion broilers processed each year in the United States, blood is a significant by-product of poultry processing. An adequate bleed-out during slaughter with subsequent blood collection results in blood being redirected from the wastewater stream to rendering, less wastewater treatment needed at the processing plant, and more saleable by-product. There is relatively little current research
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Red-green or full-spectrum white LEDs have no effects on incubation or post-hatch production variables in broilers J. Appl. Poult. Res. (IF 1.9) Pub Date : 2023-10-18 Muhammad F. Riaz, M. Bergman, J. Schober, E. Oluwagbenga, K. Christensen, G.S. Fraley
Light plays a vital role in the visual perception, development, and welfare of birds. Since the advent of LED lights, numerous studies have attempted to obtain the effects of lighting on developing embryos, with quite mixed results. Several studies have agreed, however, that red and green lights have beneficial effects on broilers. Further, new evidence has suggested the importance of ultraviolet light
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Can steam be usable as a “plus” for ventilation shutdown? J. Appl. Poult. Res. (IF 1.9) Pub Date : 2023-10-14 A.V. Mendoza, S. Weimer, Z. Williams
The American Veterinary Medical Association (AVMA), preferred depopulation methods (i.e., foam, containerized gassing, and mechanical methods) can be challenging when depopulating cage and aviary commercial laying hen houses for multiple reasons. When preferred methods are not feasible or resources are unavailable, ventilation shutdown plus (VSD+) heat and/or carbon dioxide (CO2) is approved for emergency
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Live Salmonella Typhimurium vaccination of broilers results in lower Salmonella prevalence on carcasses at commercial processing J. Appl. Poult. Res. (IF 1.9) Pub Date : 2023-10-14 K. Cookson, C.L. Hofacre, M. Da Costa, J.L. Schaeffer, M. Jones, J.A. Baxter, R. Berghaus, D. Cosby, M. Berrang, E.A. McMillan
Food safety is a major concern for consumers, regulators, and poultry producers. The top poultry relevant Salmonella serovars of most concern for human health and safety are S. enterica Enteritidis, Typhimurium, Heidelberg, and Infantis. An outbreak of poultry related salmonellosis has obvious public health implications but may also generate negative consumer impressions, significantly disrupt poultry
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Impact of exsanguination method on blood loss in broilers J. Appl. Poult. Res. (IF 1.9) Pub Date : 2023-10-03 R.C. Osborne, C.E. Harris, R.J. Buhr, B.H. Kiepper
Optimal bleed-out of commercial broilers in a poultry processing facility results in increased product quality, improved wastewater quality, and allows processors an opportunity to recover additional profits through rendering. Little data exist on how exsanguination method affects the blood loss of modern heavy, high breast meat-yield broilers during bleed-out. This study measured the impact of a 1-sided
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The effect of coated trace minerals on performance, carcass, footpad, and deposition of minerals comparing with inorganic and organic trace minerals for broiler J. Appl. Poult. Res. (IF 1.9) Pub Date : 2023-09-19 Y. Ruangpanit, K. Pongmanee, K. Chaimongkhol, K. Rassmidatta, Y.G. Liu
This study used 1,200 male Ross 308 broiler birds to evaluate efficacy of 3 sources of trace minerals: inorganic, organic, and a coated trace minerals premix, at either one inclusion dose throughout the life cycle of the birds, or the coated minerals at a descending supplemental pattern, on growth performance, carcass traits, footpad health, minerals deposition, and the amount of supplemental trace
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Dietary supplementation of 25-hydroxycholecalciferol and its impact on performance, intestinal morphology, and vitamin D status in broilers subjected to coccidiosis vaccine J. Appl. Poult. Res. (IF 1.9) Pub Date : 2023-09-15 J.C. Suarez, K. Knape, N.A. Ali, J. Aljuboori, T. Al-Alwani, O. Gutierrez, J.B. Carey
The objective of this study was to compare the effect of dietary vitamin D3 and 25-OH-D3 metabolite on performance, intestinal integrity, and vitamin-D status of broilers administered a 2X-dose coccidiosis vaccine. Broiler chicks were placed in floor pens for 21-day-trial-period. Experimental dietary treatments were formulated with a mineral-vitamin-premix devoid of D3 and supplemented with dietary
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Nitrogen-corrected apparent metabolizable energy and apparent ileal digestibility of amino acids of thermally processed food waste for broilers J. Appl. Poult. Res. (IF 1.9) Pub Date : 2023-09-16 N.M. Beckman, H.K. Otott, A.K. Blomme, P.A. Badger, L.J. Thompson, P.A. Lancaster, Y. Zheng, R.G. Amachawadi, M.A. Schrader, C.R. Stark, C.B. Paulk
To determine the economic viability of utilizing food waste in animal feed, knowledge of the nutrient availability and variability is needed. The objective of this study was to determine the nutrient variability, nitrogen-corrected apparent metabolizable energy (AMEn), and apparent ileal digestibility (AID) of food waste (FW) when fed to broilers. Dining hall FW products were created by dividing 30-day
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Effects of Selenium Nanoparticles Coated With Chitosan Supplementation on Morphometry of Immune organs, Redox status, and Immune Response in Broiler Chicken J. Appl. Poult. Res. (IF 1.9) Pub Date : 2023-09-09 Imad Khan, Hafsa Zaneb, Saima Masood, Saima Ashraf, Hafiz F. Rehman, Asad Ullah, Farid S. Ataya, Gaber El-Saber Batiha, Raheela Taj, Ahmed M. Elgazzar, Salahud Din
The present study evaluated the effects of dietary selenium nanoparticles (SeNP) coated with chitosan (CS) supplementation on immune organs’ morphology, redox status, and humoral and cellular immune responses in broilers. Day-old chicks (n=240) were divided into five groups with eight replicates per group (6 birds/replica). The basal diet was given to the control group, whereas the rest of the four
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Growth performance and digestibility comparison of 3 soybean oils and an animal-based highly saturated fat fed to broilers J. Appl. Poult. Res. (IF 1.9) Pub Date : 2023-08-29 K.M. Elmore, B.J. Kerr, E.A. Bobeck
To compare different soybean oil sources, a 42-d study was performed using 780 straight-run Ross 308 broilers randomly assigned to 1 of 5 dietary treatments. Dietary treatments consisted of: 1) a corn-soybean meal negative control (NC) diet containing 4.5% fine sand, or the NC diet with an additional 400 kcal of AME/kg from 4.5% fat inclusion of: 2) refined, bleached, and deodorized soy oil (RBD-SO
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Effects of cage stocking density on the production performance, serum biochemistry, immune level, and intestinal morphology of 2 laying hen breeds J. Appl. Poult. Res. (IF 1.9) Pub Date : 2023-08-26 Y. Wan, H. Guan, D. Wang, R. Ma, R. Qi, J. Li, W. Liu, Y. Li, K. Zhan
This study aimed to determine the effects of different cage stocking densities on the production performance, serum biochemical indices, intestinal morphology and immune levels of Hy-Line Brown and Jinghong laying hens. A total of 432 Hy-Line Brown (n = 216) and Jinghong (n = 216) commercial laying hens were selected and randomly divided into 3 groups according to stocking density: high density (H
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Interactive effects of methionine source and carnitine supplementation on growth performance, immunity, antioxidant status, and HSP70 gene expression in broilers reared under heat stress conditions J. Appl. Poult. Res. (IF 1.9) Pub Date : 2023-08-23 Hossein Ali Ghasemi, Navid Nari
This study investigated the effects of methionine source and L-carnitine (CT) on performance, immunity, stress indicators, and antioxidant status in broilers under chronic heat stress. A total of 720 one-day-old male broiler chickens were divided into 5 dietary treatments with 6 replicates and 24 chickens per replicate. The 4 HS treatments included 2 sources of methionine [DL-methionine and DL-methionine-hydroxy
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Recovery of Salmonella Enteritidis and Campylobacter coli injected into hatching eggs that are cold-stored and incubated through day 18 of incubation J. Appl. Poult. Res. (IF 1.9) Pub Date : 2023-08-22 C.E. Harris, L.N.B. Josselson, R.J. Buhr
Salmonella and Campylobacter spp. are important foodborne pathogens of concern. Both horizontal and vertical transmission of Salmonella into poultry flocks is well documented to occur, whereas only horizontal transmission of Campylobacter has been confirmed. The objective of this study was to evaluate the ability of Salmonella and Campylobacter to translocate from egg contents into the embryo during
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Applied Research Note: Comparison of different methods for beak measurements in laying hens J. Appl. Poult. Res. (IF 1.9) Pub Date : 2023-08-19 N. Volkmann, A. Riedel, N. Kemper, B. Spindler
The measurement of beak lengths in poultry can be used to study the effects of beak trimming and to evaluate different abrasive methods for beak treatment. Various methods are used in research, and different measurements on the beaks are performed. The present study compared different methods for measuring beak values using a flexible measuring tape, digital caliper, and image analysis. The measurements
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Floor egg laying: can management investment prevent it? J. Appl. Poult. Res. (IF 1.9) Pub Date : 2023-08-19 D.L.M. Campbell
Floor egg laying can be a common problem for laying and breeder hens in cage-free housing systems. This is where hens lay eggs outside of the nest box, on the litter floor, slats, or tiered wire system. The causes of floor eggs are multifactorial which can make preventing floor egg laying behavior challenging and results in significant financial loss for egg producers. To better understand how floor
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Litter consumption does not have an effect on the phytase response of Hubbard × Ross 708 broilers reared in floor pens J. Appl. Poult. Res. (IF 1.9) Pub Date : 2023-08-12 K.M. Bowen, M.E. Jackson, L.E. Knarr, J.S. Moritz
Phytase feeding research has traditionally been conducted by rearing broilers in raised wire cages, whereas commercially grown broilers are reared on built-up litter. Cage-based studies may not accurately represent commercial bird performance response to phytase. Birds with access to litter consume it, possibly increasing phosphorus intake and giving the impression that lower phytase concentrations
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Informal Nutrition Symposium 2023: challenges in supply chain and ingredient quality J. Appl. Poult. Res. (IF 1.9) Pub Date : 2023-07-29 M. Pope, G. Denny, J.-M. Hernandez, T. Costigan, K. Venter, P.W. Plumstead, C.R. Angel, D.R. Korver
In the last 3 yr, worldwide challenges (war, supply chain difficulties, and continuing inefficiencies occurring since the pandemic) beyond those of the environment (higher temperatures than normal, excess rain and flooding, or extreme and long-lasting drought) have had an immense effect on ingredient prices and their accessibility in different regions. For animal nutritionists, ingredient prices, quality
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Serological response of broiler breeders vaccinated postmolt and their progeny: reovirus and infectious bursal disease J. Appl. Poult. Res. (IF 1.9) Pub Date : 2023-07-25 L.P. Avila, M.A. Raccoursier, A. Hallowell, E.R. Bowers, J.H. Mason, C. Aranibar, J.A. Nicholds, J.D. French, E.M. Shepherd, K.B. Grogan, J.L. Wilson
When necessary, primary breeders and integrators molt broiler breeder hens to induce a second laying cycle. To protect breeders against Newcastle and bronchitis and provide progeny with maternal antibodies against reovirus (REO) and infectious bursal disease (IBD), it is common to immunize them prior to the first laying cycle with a 4-way inactivated vaccine. The objective was to determine if molted
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Using spatial modeling to evaluate LED light intensity and uniformity in commercial broiler houses during brooding and tunnel conditions J. Appl. Poult. Res. (IF 1.9) Pub Date : 2023-07-22 Olumide Falana, John E. Linhoss, Jeremiah D. Davis, Jesse C. Campbell, Carson M. Edge, Abigail E. Lane, Kelly G. Griggs, Cody R. Smith, Joseph L. Purswell
Commercial broiler companies set specific light intensities and photoperiods during different stages of live production to manage bird behavior and growth, and to support health and welfare. However, it is currently unknown how much of the floor area in commercial houses is within target levels set by companies. Therefore, a field survey of twenty 18.3 × 152.4 m broiler houses on five farms was performed