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Postpartum responses of dairy cows supplemented with cereal grain or fibrous by-product concentrate Livest. Sci. (IF 1.7) Pub Date : 2021-04-06 A. Guinguina, S.J. Krizsan, P. Huhtanen
The present study examined the effect of replacing cereal grain with a fibrous by-product concentrate on nutrient intake, milk production traits and fatty acid composition, diet digestibility, feed conversion efficiency (FCE), CH4 and CO2 emissions, and plasma blood parameters of dairy cows in early lactation. Twenty-two Nordic Red cows were randomly assigned to one of two dietary treatments immediately
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The course of pregnancy changes general metabolism and affects ruminal epithelium activity pattern in Zebu beef heifers Livest. Sci. (IF 1.7) Pub Date : 2021-03-31 Gabriel Miranda Moreira, Gleidson Luz Aguiar, Javier Andrés Moreno Meneses, Matheus Henrique da Luz, Maria Gabriela Borges Bahia Monteiro, Lorena Lara, Márcio Machado Ladeira, José Camisão de Souza, Marcio de Souza Duarte, Mateus Pies Gionbelli
The present study aimed to investigate metabolic and physiological changes induced by pregnancy, as well as the expression of key genes linked to the absorptive and proliferative activity of the ruminal epithelium towards the end of the gestational period in zebu beef heifers. Twelve ruminally cannulated Zebu beef heifers were randomly assigned into two experimental treatments: a pregnant group (n = 7)
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Transcriptome changes in newborn goats’ skeletal muscle as a result of maternal feed restriction at different stages of gestation Livest. Sci. (IF 1.7) Pub Date : 2021-04-03 Thaís C. Costa, Tiago A.O. Mendes, Marta M.S. Fontes, Mariana M. Lopes, Min Du, Nick V.L. Serão, Leticia M.P. Sanglard, Francesca Bertolini, Max F. Rothschild, Fabyano F. Silva, Mateus P. Gionbelli, M.S. Duarte
We investigated how feed restriction at 50% of maintenance requirements during different stages of gestation affects the transcriptome of newborn goats’ skeletal muscle. Fourteen pregnant dams were randomly assigned into one of the following dietary treatments: animals fed at 50% of maintenance requirement from 8–84 d of gestation and then fed at 100% of maintenance requirement from day 85 of gestation
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Hydrothermal synthesis of a new porous zinc oxide and its antimicrobial evaluation in weanling piglets Livest. Sci. (IF 1.7) Pub Date : 2021-04-02 Zicheng Ouyang, Pingping Ren, Dan'er Zheng, Linli Huang, Tao Wei, Chengbo Yang, Xiangfeng Kong, Yulong Yin, Shanping He, Qinghua He
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Effects of dietary supplementation of vitamin C on productive performance, egg quality, tibia characteristics and antioxidant status of laying hens Livest. Sci. (IF 1.7) Pub Date : 2021-04-04 Jomari Badillo Delos Reyes, Jong Hyuk Kim, Gi Ppeum Han, Seung Yeon Won, Dong Yong Kil
The objective of the current experiment was to investigate the effects of dietary supplementation of vitamin C on productive performance, egg quality, tibia characteristics and antioxidant status in laying hens raised under normal temperature conditions. A total of 504 46-week-old Hy-Line Brown laying hens were allotted to 1 of 6 dietary treatments with 7 replicates in a completely randomized design
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Evaluation of cool-season binary mixtures as pasture: Herbage yield, nutritive value, and beef cattle performance Livest. Sci. (IF 1.7) Pub Date : 2021-04-02 S. Peprah, D. Damiran, B. Biligetu, A.D. Iwaasa, K. Larson, H.A. Lardner
A 3-year study (2016, 2017, and 2018) was conducted to compare the effects of alfalfa (ALF; cv. Yellowhead) (Medicago falcata L.) or sainfoin (SF; cv. AAC Mountainview) (Onobrychis viciifolia Scop.) in mixtures with either Russian wildrye (RWR; cv. Tom) (Psathyrostachys junceus [Fisch.]) or hybrid bromegrass (HBG; cv. Success) (Bromus riparius Rehm × B. inermis Leyss) on herbage dry matter yield (DMY)
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The effect of oral calcium boluses at parturition on blood metabolites and milk yield in grazing Holstein cattle Livest. Sci. (IF 1.7) Pub Date : 2021-04-10 Pedro Melendez, Carlos Roeschmann, Alejandra Arevalo, Jan Moller
The objective of this study was to assess the effect of oral calcium boluses at parturition on plasma total calcium (tCa), phosphorus (P), total magnesium (tMg), beta hydroxybutyrate (BHB) and milk yield during the postpartum (pp) of grazing Holstein cows. The study was conducted on a seasonal grazing dairy in Chile. Prepartum cows were fed an anionic diet (-86 mEq/kg DM). In 2019, 10 cows of parity
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Weight Gain, Grazing Behavior and Carcass Quality of Desert Grass-fed Rarámuri Criollo vs. Crossbred Steers Livest. Sci. (IF 1.7) Pub Date : 2021-04-10 Matthew M. McIntosh, Andrés F. Cibils, Richard E. Estell, Shelemia Nyamuryekung'e, Alfredo L. González, Qixu Gong, Huiping Cao, Sheri A. Spiegal, Sergio A. Soto-Navarro, Amanda D. Blair
Rarámuri Criollo cattle producers often crossbreed their cows with improved beef-breed bulls or retain and/or develop their yearlings on rangeland because of limited weaned calf markets, however it is unknown if Rarámuri Criollo steers exhibit marketable weight gains and carcass qualities, or desirable grazing behaviors documented in cows of this biotype. We evaluated two cohorts (cohort: 1 = 31, 2 = 26)
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On-farm examination of sainfoin supplementation effects in dairy cows in a roughage-based feeding system: indicators of protein utilisation Livest. Sci. (IF 1.7) Pub Date : 2021-04-10 Alexandra N. Kapp-Bitter, Uta Dickhoefer, Gerdine Kaptijn, Vasilisa Pedan, Erika Perler, Michael Kreuzer, Florian Leiber
A case study was conducted with the objective to determine the effects of the tanniferous legume sainfoin (Onobrychis viciifolia) on protein utilisation of dairy cows, which were exposed to excessive dietary crude protein during autumn pasture grazing in a zero-concentrate feeding system. The study was conducted under practical conditions, deliberately accepting a certain lack of controllable variables
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Hair coat score in Angus cattle: comparison of linear and threshold models, genetic gain and correlations with growth, morphological and reproductive traits Livest. Sci. (IF 1.7) Pub Date : 2021-04-10 Daniel Duarte da Silveira, Juan Salvador Andrade Tineo, Patrícia Iana Schmidt, Gabriel Soares Campos, Fabio Ricardo Pablos de Souza, Vanerlei Mozaquatro Roso, Arione Augusti Boligon
Hair coat traits are used as indicators of animal adaptation because of their importance for thermoregulation and parasites resistance. These traits are evaluated visually based on a score in some beef cattle breeding programs. Data from 38,800 Angus animals were used to compare linear and threshold animal models in order to validate genetic parameters for visual scores of hair coat at weaning (WHC)
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Effects of including physically effective fiber from sugarcane in whole corn grain diets on the ingestive, digestive, and ruminal parameters of growing beef bulls Livest. Sci. (IF 1.7) Pub Date : 2021-04-06 H.M. Alhadas, S.C. Valadares Filho, F.F. Silva, F.A.S. Silva, P. Pucetti, M.V.C. Pacheco, B.C. Silva, L.O. Tedeschi
The objective of this study was to evaluate the inclusion of physically effective fiber (peNDF) from sugarcane in feedlot diets containing whole corn grain on ingestive, digestive, and ruminal parameters. Five rumen-cannulated Nellore bulls (BW = 393 ± 9 kg) distributed in an incomplete 5 × 5 Latin square received diets containing 5% (D5), 15% (D15), 25% (D25), or 35% (D35) sugarcane. All diets included
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Effects of dietary 25-hydroxyvitamin D3 on the lactation performance, blood metabolites, antioxidant and immune function in dairy cows Livest. Sci. (IF 1.7) Pub Date : 2021-03-31 H.J. Xu, X. Jiang, C.R. Zhang, G.M. Ma, L.H. Wang, Q.Y. Zhang, Y.G. Zhang
The objective of this study was to evaluate the effects of 25-hydroxyvitamin D3 on the lactation performance, blood metabolites, and antioxidant and immune function in dairy cows. Thirty-six mid-lactation Holstein dairy cows were blocked according to day in milk, milk yield and somatic cell counts (SCC) and were randomly assigned to 3 treatments. Treatments were a basal diet plus 0 mg, 1 mg or 3 mg
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The effect of reduced feed pH, phytase addition and their interaction on mineral utilization in pigs Livest. Sci. (IF 1.7) Pub Date : 2021-04-01 Siril Kristoffersen, Torger Gjefsen, Birger Svihus, Nils Petter Kjos
An experiment with a 2 × 2-factorial arrangement of treatments was carried out to assess the effect of reduced feed pH and addition of phytase and their interactions on performance, mineral retention (Ca, P, Mg, Zn, Fe and Cu) and bone mineralization. A wheat-based diet with a high phytate-P content and no inorganic P added, or the same diet with either 1.4 % formic acid, 500 FTU C. braakii-derived
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Efficacy of statistical process control procedures to monitor deviations in physical behavior for preclinical detection of bovine respiratory disease in feedlot cattle Livest. Sci. (IF 1.7) Pub Date : 2021-03-26 Lauren R. Wottlin, Gordon E. Carstens, William C. Kayser, William E. Pinchak, Pablo J. Pinedo, John T. Richeson
Opportunities exist to improve the efficacy of antimicrobial treatment and animal welfare standards through use of remote sensor technologies for early detection of bovine respiratory disease (BRD). A post-hoc analysis using statistical process control (SPC) procedures was performed on continuously-recorded physical activity data collected from BRD-diagnosed and healthy calves from Pillen et al. (2016)
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Genome-wide association for plasma urea concentration in sheep Livest. Sci. (IF 1.7) Pub Date : 2021-03-23 Taiana Cortez de Souza, Tatiana Cortez de Souza, Gregorí Alberto Rovadoscki, Luiz Lehmann Coutinho, Gerson Barreto Mourão, Gregório Miguel Ferreira de Camargo, Raphael Bermal Costa, Gleidson Giordano Pinto de Carvalho, Victor Breno Pedrosa, Luís Fernando Batista Pinto
Urea-related traits can be used as an indicator of nitrogen (N) utilization and excretion and have a key role in the protein metabolism of ruminants. A genome-wide association study (GWAS) was carried out for plasma urea concentration (PUC) in Santa Inês sheep. PUC was recorded in 229 lambs, which were also genotyped with OvineSNP50K BeadChip. After data quality control, 43,996 variants and 229 PUC
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Effects of inclusion different level of low-quality forage and ruminal undegradable protein to degradable protein ratio in starter diet on growth performance, ruminal fermentation, and urinary purine derivatives in young lambs Livest. Sci. (IF 1.7) Pub Date : 2021-04-06 T. Dorri, M. Kazemi-Bonchenari, M. HoseinYazdi, M. Mirzaei
Forty 12-day-old lambs with an average BW of 6.37 kg were allocated in a completely randomized design with a 2 × 2 factorial arrangement to evaluate the effects of wheat straw feeding level (WS; 10% vs. 25%, DM basis) and rumen undegradable to degradable protein ratio [RUP:RDP; low ratio (LR) = 27:73; high ratio (HR) = 38:62] on growth performance, nutrient digestibility, ruminal fermentation, microbial
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Modeling standardized ileal digestible lysine requirements during gestation on gilts and sows Livest. Sci. (IF 1.7) Pub Date : 2021-04-03 L.L. Thomas, R.D. Goodband, M.D. Tokach, J.C. Woodworth, J.M. DeRouchey, S.S. Dritz
The objective of this study was to model daily standardized ileal digestible (SID) Lys requirements in gestating sows. Data from 877 females (459 gilts, 418 sows; Camborough®, PIC, Hendersonville, TN) was collected and modeled using Dourmad et al. (2008) equations. Individual feed intake and body weight (BW) were recorded daily throughout gestation. Dietary treatments included 11, 13.5, 16, and 18
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Modulation of ruminal pH, milk fat secretion, and biohydrogenation intermediates by alkalizing agents in dairy cows fed starch-rich diets Livest. Sci. (IF 1.7) Pub Date : 2021-03-26 Ali Razzaghi, Mohammad Malekkhahi, Reza Valizadeh, Ehsan Parand, Ali-Reza Bayat
We aimed to evaluate the effects of magnesium-based supplements and NaHCO3 on ruminal fermentation parameters, milk fatty acid (FA) profile, and milk fat synthesis in dairy cows fed high-starch diets. Eight second-lactation Holstein dairy cows (4 ruminally-cannulated) averaging 97 ± 12 days in milk and 33 ± 2.5 kg/d of milk were assigned to a replicated 4 × 4 Latin square design with 21-d periods.
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Relationship between body condition score index and fertility in beef cows subjected to timed artificial insemination Livest. Sci. (IF 1.7) Pub Date : 2021-03-25 Luiz Francisco Machado Pfeifer, Walvonvitis Baes Rodrigues, Eriklis Nogueira
Visual evaluation of body condition score (BCS) is an important method for the subjective quantification of body energy reserves in cattle. The objective of this study was to develop an index to estimate the relationship between BCS and fertility, using 2321 lactating Nelore cows from 29 cohorts in Mato Grosso do Sul and Rondonia states, Brazil enrolled in timed artificial insemination (TAI) programs
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Challenges in selection and breeding of polled and scur phenotypes in beef cattle Livest. Sci. (IF 1.7) Pub Date : 2021-03-19 R. Grobler, E. van Marle-Köster, C. Visser
The benefits of polled beef animals in the value chain have become well known and provides an impetus to beef cattle breeders to select for the POLLED gene. Animal welfare is a major concern and polled animals do not need to be subjected to painful dehorning; additional advantages include lower injury risks during transport and improved safety during handling of the animals. The polled condition has
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The effects of salt and protein level on the performance and fecal consistency of piglets between 4 and 9 weeks of age Livest. Sci. (IF 1.7) Pub Date : 2021-03-23 S. Millet, B. Ampe, M.D. Tokach
Recent research has shown that salt levels of minimal 3.5 g/kg diet result in best performance in piglets between 7 and 11 kg. In the US, pig diets tend to have higher salt levels and higher crude protein (CP) levels than in Europe. Higher CP levels may lead to higher protein breakdown, while higher salt levels may lead to increased water consumption, which might facilitate nitrogen clearance through
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Factors Influencing the Succession of the Fecal Microbiome in Broilers Livest. Sci. (IF 1.7) Pub Date : 2021-03-26 Dirkjan Schokker, Britt de Klerk, Randy Borg, Alex Bossers, Johanna M.J. Rebel
Health and performance are important aspects in the broiler industry. Underlying complex traits like total mean weight and feed efficiency are polygenic and related to genetic background and an association of the microbiota with these traits has been identified. Whether this association is also reflected in the fecal samples of broilers is not extensively investigated. The objective of this study was
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Effects of supplementation strategies during the growing phase on meat quality of beef cattle finished in different systems Livest. Sci. (IF 1.7) Pub Date : 2021-03-04 Juliana Akamine Torrecilhas, Elias San Vito, Giovani Fiorentini, Pablo de Souza Castagnino, Tiago Adriano Simioni, Josiane Fonseca Lage, Fernando Baldi, Juliana Messana Duarte, Lorrayny Galoro da Silva, Ricardo Andrade Reis, Telma Teresinha Berchielli
One hundred and twenty bulls were used in a randomized complete block design in 2 × 2 factorial arrangement; two supplements during the growing phase: mineral (ad libitum; MIN) or protein + energy [0.3% of body weight (BW)/animal/day; PRE] and two finishing systems: pasture plus concentrate supplementation (2% BW/animal/day; PASCO) and feedlot (25:75% corn silage:concentrate; FLOT). The supplementation
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Heat stress effects on somatic cell score of Holstein cattle in tropical environment Livest. Sci. (IF 1.7) Pub Date : 2021-03-19 Renata Negri, Darlene dos Santos Daltro, Jaime Araújo Cobuci
Considering the importance of dairy farming and negative effects of heat stress, the objective of this study was to investigate the effect of heat stress via temperature-humidity index (THI) and diurnal temperature variation (DTV) for somatic cell score (SCS) of Holstein dairy cattle, using random regression models. Data were a total of 52,012 test-day records for SCS of 9,765 first parity Holstein
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Dose and time response of dietary supplementation with Schizochytrium sp. on the abundances of several microorganisms in the rumen liquid of dairy goats Livest. Sci. (IF 1.7) Pub Date : 2021-03-27 Alexandros Mavrommatis, Kyriaki Sotirakoglou, Dimitrios Skliros, Emmanouil Flemetakis, Eleni Tsiplakou
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Evaluation of reproductive traits and the effect of nutrigenetics on bulls submitted to fetal programming Livest. Sci. (IF 1.7) Pub Date : 2021-03-26 Guilherme Henrique Gebim Polizel, Paulo Fantinato Neto, Raissa Braido Rangel, Laís Grigoletto, Fernando de Oliveira Bussiman, Roberta Cavalcante Cracco, Nara Pontes Garcia, Isabela Modolo Ruy, José Bento Sterman Ferraz, Miguel Henrique de Almeida Santana
Nutritional stimuli during the gestational period in dams have long-term effects on the offspring in terms of health and production rates. This study assessed the effect of fetal programming in 126 pregnant Nellore cows on reproductive and nutrigenetic traits of the progeny during the rearing phase. For that purpose, three nutritional treatments were used in these cows during pregnancy: PP – protein-energy
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Meta-analysis of genetic parameters for economic traits in sheep Livest. Sci. (IF 1.7) Pub Date : 2021-03-19 Bruno Delphino Medrado, Victor Breno Pedrosa, Luís Fernando Batista Pinto
Very diversified studies estimated genetic parameters in sheep, and reliable estimates that account for the variation between articles can be achieved through a meta-analysis. This study proposed to carry out a meta-analysis to obtain estimates of heritability and genetic correlations for 35 traits, including growth, reproductive, resistance to parasites, wool, and carcass related traits. A total of
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Dose-response effect of encapsulated nitrate replacing soybean meal on growth performance, ingestive behavior, and blood metabolites of feedlot finishing bulls Livest. Sci. (IF 1.7) Pub Date : 2021-03-12 Rafael C. Araujo, Marcela L.R. Pereira, Victor R.M. Couto, Barbara J.M. Lemos, Paulo H. Jorge da Cunha, Emmanuel Arnhold, Jordanna A. Silva, Juliano J.R. Fernandes
This study addressed the dose-response effect of an encapsulated nitrate product (ENP) replacing soybean meal (SBM) in the finishing period (87-d) of feedlot bulls. One hundred twenty Nellore bulls (340 ± 28 kg of body weight, BW; mean ± SD) were allotted to 20 outdoor pens (6 animals/pen) and assigned to a randomized complete block design with 5 blocks based on initial BW and 4 dietary treatments:
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Genome-wide association study reveals genes crucial for coat color production in Vrindavani cattle Livest. Sci. (IF 1.7) Pub Date : 2021-03-16 Supriya Chhotaray, Manjit Panigrahi, Bharat Bhushan, G.K. Gaur, Triveni Dutt, B.P. Mishra, R.K. Singh
Coat colour and various patterns are the hallmarked qualitative traits studied in cattle as well as other livestock; however, variation in this trait is resultant of interactions and epistasis of a set of genes rather than being a product of a single gene. In this study, GWAS has been conducted from 50K SNP genotype data, with a stratified approach on Vrindavani cattle (n=48). The study was conducted
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Do Animal Welfare Schemes Promote Better Animal Health? An Empirical Investigation of German Pork Production Livest. Sci. (IF 1.7) Pub Date : 2021-03-23 Reinhard Uehleke, Stefan Seifert, Silke Hüttel
Animal welfare programs support lower production intensity and environmental enrichment to create additional value for animals and consumers, by facilitating farms to resolve the conflict between animal welfare and efficient farming. Yet, the success of such enrichments in improving animal welfare and thus the productive performance depends on farmers’ production process management. Complexity of animal
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Pedigree analysis of the racing line Quarter Horse: Genetic diversity and most influential ancestors Livest. Sci. (IF 1.7) Pub Date : 2021-03-23 Ricardo António da Silva Faria, António Pedro Andrade Vicente, Alejandra Maria Toro Ospina, Josineudson Augusto II Vasconcelos Silva
The aims of this study were to evaluate the genetic diversity of the racing line Quarter Horse breed in Brazil and to provide data on the most influential ancestors by pedigree analysis. All horses that had participated in sprint races in Brazil between 1978 and 2016 were evaluated. There were 5,861 athletes horses (2,474 males and 3,387 females) born between 1971 and 2014. These animals were referred
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Histochemical characterisation of high-value beef muscles from different breeds, and its relation to tenderness. Livest. Sci. (IF 1.7) Pub Date : 2021-03-11 Nicole Lebedová, Daniel Bureš, Tersia Needham, Jaroslav Čítek, Zuzana Dlubalová, Roman Stupka, Luděk Bartoň
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A review on growth promoters still allowed in cattle and pig production Livest. Sci. (IF 1.7) Pub Date : 2021-03-04 Carolina Naves Aroeira, Vivian Feddern, Vanessa Gressler, Carmen Josefina Contreras-Castillo, David Laurence Hopkins
The demand for food is expected to grow substantially in the next few years; however, to feed the human population adequately it is necessary to ensure global food production. Undoubtedly this will lead to a higher protein requirement, consequently more meat. Therefore, producers, animal researchers and feed manufacturers will need to enhance animal nutrition and productivity, for instance. Growth
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Bioeconomic evaluation of feedings strategies in the yearling beef cattle system in Mozambique Livest. Sci. (IF 1.7) Pub Date : 2021-03-11 Télis Adolfo Cumbe, Amir Gil Sessim, Fredy Andrey López-González, Daniele Zago, Antónia Mendes Paizano Alforma, Júlio Otávio Jardim Barcellos
The application of feeding strategies (FS) to meet nutrient requirements of beef cattle grazing on native pastures during the dry season, are required to improve the productivity of production systems in tropical regions. The objective of this study was to evaluate the bioeconomic effects of different FSs applied to yearling bulls in Mozambique, using modeling and simulations as tools to support decision
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Different soybean meal particle sizes on growth performance, nutrient ileal digestibility, digestible energy, and carcass yield of broiler chickens Livest. Sci. (IF 1.7) Pub Date : 2021-03-06 F.O. Marx, A. Massuquetto, L.S. Bassi, E.L. Krabbe, C. Rocha, S.G. Oliveira, A. Maiorka
An experiment was conducted to investigate the effect of soybean meal (SBM) with different particle sizes included in mash diets on digestible energy, nutrient digestibility, and growth performance of broiler chickens. A total of 720 one-d-old male broiler chickens were assigned to 4 treatments with 9 replicates of 20 broiler chickens each in a completely randomized design and reared from d 0 to 42
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Fixed timed artificial insemination and early resynchronization of ovulation in different categories of ewes in grazing system: Response of multiparous, nulliparous, and lactating ewes during the breeding season Livest. Sci. (IF 1.7) Pub Date : 2021-03-05 Isabel Oliveira Cosentino, Felipe Zandonadi Brandão, Pedro Henrique Nicolau Pinto, Raquel Perez Clariget, Rodolfo Ungerfeld
The aims of this study were to: 1) determine if the insertion of a second MAP sponge in ewes 12 days after the first FTAI affects the pregnancy rate; 2) compare the responses to resynchronization protocol in multiparous and nulliparous ewes; and 3) compare the responses to resynchronization protocol in multiparous and postpartum lactating ewes. Three trials were performed with 186 Corriedale ewes:
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Associations between skin lesion counts, hair cortisol concentrations and reproductive performance in group housed sows Livest. Sci. (IF 1.7) Pub Date : 2021-02-28 Martyna E. Lagoda, Keelin O'Driscoll, Joanna Marchewka, Simone Foister, Simon P. Turner, Laura A. Boyle
The effects of acute stress on sow reproductive performance are well established, but we know less about the implications of chronic stress for sow performance. This study investigated associations between total skin lesion counts 24hr and 3 weeks post-mixing, hair cortisol concentrations at the end of pregnancy, and reproductive performance of sows. Sows (n = 264; parity 1-5) were artificially inseminated
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A conceptual model of the human-animal relationships dynamics during newborn handling on cow-calf operation farms Livest. Sci. (IF 1.7) Pub Date : 2021-02-28 Franciely de Oliveira Costa, Tiago S. Valente, Luciandra Macedo de Toledo, Luís Alberto Ambrósio, Marcia del Campo, Mateus J.R. Paranhos da Costa
Neonate calves are usually handled a day after birth for navel care and identification. During this procedure the newly calved cows usually become agitated and, in some cases, exhibit aggressive behavior toward humans, increasing the risk of accidents for both, humans and animals. In order to understand the dynamic relationships between cow, calf, and cowhand's behavior expressed in this particular
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Effects of ground corn and Acacia mearnsii tannin extract supplementation on nitrogen excretion and nitrous oxide emissions from sheep Livest. Sci. (IF 1.7) Pub Date : 2021-02-20 Mariana Nunes de Souza, Cimelio Bayer, Marie Lassalas, Gabriela Marta Michelon, Luis Henrique Schaitz, Ricardo Biasiolo, Mauricio Civiero, Henrique Mendonça Nunes Ribeiro-Filho
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Quality traits of fresh Iberian loin according to slaughter age and short-term freezing Livest. Sci. (IF 1.7) Pub Date : 2021-02-26 Alberto Ortiz, Elena González, Susana García-Torres, Ana Isabel Andrés, María Jesús Petrón, David Tejerina
The influence of various slaughter age options and short-term freezing storage on Iberian loin (longissimus thoracis et lumborum (LTL)) quality traits was assessed. Three batches of 15 animals each one were established (IBxD8, IBxD10 and IBxD12) to be slaughtered at 8, 10 and 12 months old, respectively, but similar live weight. After slaughtering, LTL muscles were dissected and assigned to three sets:
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Effects of palm kernel cake in high-concentrate diets on carcass traits and meat quality of feedlot goats Livest. Sci. (IF 1.7) Pub Date : 2021-02-21 Liliane Oliveira da Silva, Gleidson Giordano Pinto de Carvalho, Manuela Silva Libanio Tosto, Victor Guimarães Oliveira Lima, Luis Gabriel Alves Cirne, Maria Leonor Garcia Melo Lopes de Araújo, Douglas dos Santos Pina, Vagner Maximino Leite, Carlindo Santos Rodrigues, Bruna Mara Aparecida de Carvalho Mesquita
This study was conducted to examine the effects of including palm kernel cake (0, 120, 240, and 360 g kg−1) in high-concentrate diets for feedlot goats on carcass traits and meat quality. Thirty-two non-pregnant, mixed-breed goats (average age: 1 year; initial body weight: 24.70 ± 3.72 kg) were evaluated in a completely randomized experimental design. Hot (P = 0.007) and cold (P = 0.008) carcass weights
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Effect of dietary supplementation with a blend of protected aromatic compounds, including benzoic acid, on growth performance and faecal microbial profile of weaned piglets as an alternative to Zinc Oxide Livest. Sci. (IF 1.7) Pub Date : 2021-02-18 Federico Correa, Diana Luise, Marisol Castillo, Silvia Peris, Antonio Palomo-Yague, Paolo Bosi, Paolo Trevisi
Organic acids (OA), especially benzoic acid, have long been used for their wide antimicrobial activity and have shown to promote intestinal health and increase average daily gain (ADG), feed intake (FI) and feed conversion ratio (FCR) of pigs. On the other side, the European Commission decided to ban the use of pharmacological levels of zinc oxide (ZnO) in diets for this animal species from 2022. The
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Short communication: climate impact of Australian livestock production assessed using the GWP* climate metric Livest. Sci. (IF 1.7) Pub Date : 2021-02-22 Bradley Ridoutt
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Estimating the copy number of the agouti signaling protein (ASIP) gene in goat breeds with different color patterns Livest. Sci. (IF 1.7) Pub Date : 2021-02-08 Dailu Guan, Anna Castelló, María Gracia Luigi-Sierra, Vincenzo Landi, Juan Vicente Delgado, Amparo Martínez, Marcel Amills
The agouti signaling protein (ASIP) gene has a crucial role in pigmentation by encoding a protein that binds the melanocortin 1 receptor and stimulates the synthesis of pheomelanin rather than eumelanin. Several studies have suggested that an increased copy number of the ASIP gene might explain the white pigmentation of certain goat breeds, as previously demonstrated in sheep. In the current work,
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Effect of walking exercise and nutritional plan on goat performance Livest. Sci. (IF 1.7) Pub Date : 2021-02-15 Marcella Cândia D'Oliveira, Marcelo Vedovatto, Ibrahim Miranda Cortada Neto, Rafaela Nunes Coelho, Maria da Graça Morais, Marina de Nadai Bonin Gomes, João Alberto Negrão, Gumercindo Loriano Franco
This study evaluated the effects of walking exercise and nutritional plan on metabolic variables and the growth of stabled goats. Thirty-six goats [body weight (BW) = 21 ± 0.3 kg] were allocated in individual pens, and the treatments were randomly assigned to the animals in a 2 × 2 factorial design. The treatments consisted of walking exercise (7,5 km/day) or not and two nutritional plans [90 % (0
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Difructose anhydride III improves feed intake immediately after calving in multiparous cows Livest. Sci. (IF 1.7) Pub Date : 2021-02-18 Masaaki Hanada, Syaw Wynn, Maimaiti Reshalaitihan
This study was conducted to investigate the effect of difructose anhydride (DFA) III on dry matter intake in multiparous cows immediately after calving. Seventy-four transition multiparous Holstein cows were allocated into control (CONT) and DFA groups. The average parity number in the CONT and DFA groups was 3.70 ± 0.25 and 3.67 ± 0.26, respectively. Individual cow measurements were collected from
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Is the farming method (cage, barn, organic) a relevant factor for marketed egg quality traits? Livest. Sci. (IF 1.7) Pub Date : 2021-02-15 Antonella Dalle Zotte, Marco Cullere, Erika Pellattiero, Alberto Sartori, Alberto Marangon, Valerio Bondesan
The present study evaluated the physicochemical and sensory traits of marketed table eggs, deriving from different farming methods (cage, barn, and organic) and sampled in different marketing periods (June, July, September, October). A total of n=540 eggs (n=45 eggs/farming method/sampling period) of “medium” weight-grading were purchased and subjected to physical measurements (shell, yolk, and albumen
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Profiles of dairy cows with different productive lifespan emerge from multiple traits assessed at first lactation: the case of a grassland-based dairy system Livest. Sci. (IF 1.7) Pub Date : 2021-02-10 L.B. Mendes, M. Coppa, J. Rouel, B. Martin, B. Dumont, A. Ferlay, C. Espinasse, F. Blanc
This study focuses on extensive grassland-based dairy systems, where cows may be exposed to various hazards (climatic, health…) and limiting environments (feeding conditions) over their life. In such livestock systems, the ability of cows to remain in the herd (i.e. lifespan) reveals their ability to cope with such perturbations and to continue meeting the farmer's expectations. Productive lifespan
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Are crossbred cattle (F1, Bos indicus x Bos taurus) thermally different to the purebred Bos indicus cattle under moderate conditions? Livest. Sci. (IF 1.7) Pub Date : 2021-02-17 Gustavo André Bernado Moura, Cíntia Carol de Melo Costa, Vinícius de França Carvalho Fonsêca, Gene Wijffels, Patric André Castro, Marcos Chiquitelli Neto, Alex Sandro Campos Maia
In this study we compared the bio-thermal responses of a crossbred (F1, Nellore x Angus) and purebred Bos indicus (Nellore) cattle kept under moderate thermal conditions. Specifically, we assessed if they were different in their daily pattern of metabolic heat production, regulation of body temperature and use of evaporative heat transfer pathways. Six Nellore bulls with 669 ± 65 kg of body weight
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Estrus signs in Holstein Friesian dairy cows and their reliability for ovulation detection in the context of visual estrus detection Livest. Sci. (IF 1.7) Pub Date : 2021-02-15 Ina Gaude, Andreas Kempf, Klaas Dietrich Strüve, Martina Hoedemaker
The aim of the present study was to determine the frequency of estrus signs in housed dairy cows and to compare their reliability in relation to visual estrus detection, including all signs of estrus, which can be observed like cows’ behavior (especially standing to be mounted) and physiological processes like the appearance of vaginal mucus. For the study, the estrous behavior of 139 cows was observed
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Relationship among serum metabolic hormones with pregnancy rates to fixed-time artificial insemination in Bos indicus beef females Livest. Sci. (IF 1.7) Pub Date : 2021-02-16 R.F.G. Peres, R.F. Cooke, H. Dias, D.H. Keisler, K.G. Pohler, J.L.M. Vasconcelos
Two experiments compared body parameters and serum concentrations of GH, IGF-I, and leptin in Bos indicus females based on their pregnancy status to fixed-time artificial insemination (FTAI). In Exp. 1, 226 nulliparous heifers were assigned to a puberty induction protocol (d -35 to d -23), followed by an estrus synchronization and FTAI protocol (d -11 to 0). Heifers received a controlled internal progesterone
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Effects of hydroxy trace mineral supplementation on gain and reproductive performance in beef heifers Livest. Sci. (IF 1.7) Pub Date : 2021-02-04 S.A. Springman, M.E. Drewnoski, R.N. Funston
The objective of this study was to compare hydroxy to sulfate sources of Cu and Zn, on growth and reproduction in Angus-based beef heifers. Over a 2 year period, 200 Angus-based, spring-born heifers were stratified by previous winter development treatment and BW to pens and fed either hydroxy (HD, Micronutrients, Indianapolis, IN) or sulfate (SULF; Phibro Animal Health, Teaneck, NJ) to provide 7.2
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Application of depth sensor to estimate body mass and morphometric assessment in Nellore heifers Livest. Sci. (IF 1.7) Pub Date : 2021-02-09 Scheila Geiele Kamchen, Elton Fernandes dos Santos, Luciano Bastos Lopes, Laurimar Gonçalves Vendrusculo, Isabella C.F.S. Condotta
The potential of an RGB-D sensor as a tool to estimate Nellore heifers’ body mass and morphometric measurements through image analysis was evaluated. An Intel RealSense D435i depth sensor was used to acquire dorsal images of 260 animals aged between 8 and 18 months. Images were acquired from March to December 2019 in six-time points. The best quality images were selected using a multi-layer perceptron
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Apparent total and ileal digestibility of rice bran with or without multicarbohydrase and phytase in weaned piglets Livest. Sci. (IF 1.7) Pub Date : 2021-02-04 M.A. Trindade Neto, C. Gallardo, F. Perna Junior, J.C. Dadalt
In the first 2 weeks after weaning, the piglets' digestive system cannot efficiently digest the new diet with vegetal ingredients. This study evaluated the effects of multicarbohydrase – MC (700 U α-galactosidase, 2200 U galactomannanase, 3000 U xylanase and 22 000 U β-glucanase per kilogram of diet), and phytase – Phy (500 phytase units – FTU/kg of diet) supplementation on the nutritive value of rice
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The effect of organic and inorganic zinc source, used with lignocellulose or potato fiber, on microbiota composition, fermentation, and activity of enzymes involved in dietary fiber breakdown in the large intestine of pigs Livest. Sci. (IF 1.7) Pub Date : 2021-02-05 Marcin Barszcz, Marcin Taciak, Anna Tuśnio, Ewa Święch, Jacek Skomiał, Klaudia Čobanová, Ľubomira Grešáková
The study aimed at determining the effects of Zn sources, used with potato fiber (PF) or lignocellulose (LC), on microbiota ecology in the large intestine of pigs. The hypothesis was that organic Zn source, i.e. Zn glycinate (ZnGly), and PF improve polysaccharide digestibility via effects on microbiota involved in degradation of dietary fiber. Twenty four piglets of initial body weight 10.8 ± 0.82
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Use of schizochytrium spp. microalgae in suckling Holstein calves at different periods after birth Livest. Sci. (IF 1.7) Pub Date : 2021-02-04 Cristiane Regina Tomaluski, Cintiamara Baggio, Gabriela Campigotto, Matheus D. Baldissera, Carine Freitas Souza, Aleksandro S. Da Silva, Claiton André Zotti
Calves are born immunologically immature and are highly susceptible to infectious diseases. For these reasons, suitable handling practices that favor health conditions and improve performance are necessary at this phase of life. The aim of this study was to evaluate whether the inclusion of Schizochytrium sp. microalgae for Holstein calves at different ages would improve dry matter intake (DMI), performance
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Intratesticular injection of busulfan for producing recipient male pigs for spermatogonial stem cell transplantation Livest. Sci. (IF 1.7) Pub Date : 2021-02-12 Mao Zhang, Xin Zhao, Hongyi Li, Gengyuan Cai, Huaqiang Yang, Zhenfang Wu
Spermatogonial stem cells (SSCs) are the foundation of spermatogenesis and fertility in male animals. In agricultural perspectives, SSC transplantation holds potential in expanding the availability of gametes from elite livestock rapidly, thus offering a highly efficient reproductive technique for livestock production. A limiting factor in application of this technique is acquisition of non-endogenous-SSC
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The effect of whole sesame seeds on milk chemical composition, fatty acid profile and antioxidant status in goats Livest. Sci. (IF 1.7) Pub Date : 2021-02-16 C. Mitsiopoulou, K. Sotirakoglou, N.E. Labrou, E. Tsiplakou
Whole sesame seeds (WSS), although rich in linoleic acid, have not been studied for their impact on the milk fatty acid (FA) profile. Twenty-four goats were divided into three homogeneous subgroups. A control (CON) group and treated groups, in which WSS were incorporated in the concentrates of the CON at 5% (WSS5) and 10% (WSS10), respectively, by partial substitution of both soybean meal and corn
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Analysis of reproductive seasonality in Entrepelado and Retinto Iberian pig varieties under intensive management Livest. Sci. (IF 1.7) Pub Date : 2021-02-08 Melani Martín de Hijas-Villalba, Luis Varona, Noelia Ibáñez-Escriche, Juan Pablo Rosas, José Luis Noguera, Joaquim Casellas
Seasonal patterns in the farrowing distribution of two Iberian pig varieties (Retinto and Entrepelado) and its environmental and genetic sources of variation were analyzed within the context of a von Mises circular mixed model solved through Bayesian inference. Estimates about the dispersion parameter supported a low seasonal pattern for both Entrepelado and Retinto varieties with the farrowing peak
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Heterosis effects on 305-day milk yield in a Girolando dairy cattle population in different lactation orders Livest. Sci. (IF 1.7) Pub Date : 2021-02-05 Darlene dos Santos Daltro, Renata Negri, Jaime Araújo Cobuci
The aim of this study was to evaluate the heterosis effects for 305-day milk yield (305MY) in different lactation orders of Girolando cows, by fitting test-day milk yield records to Wood's, Mixed Log, and Wilmink's non-linear models. A total of 400,328 test-day milk yield records of 39,077 Holstein (H), Gyr (G), and Girolando (1/2 H, 1/4 H, 3/4 H, 3/8 H, 5/8 H, and 7/8 H genetic groups) cows from 822
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