This study evaluated the effect of rice straw supplementation on cow-calf systems and the effect of increasing stocking rates on bio-economic efficiency. Three production systems were compared in which pregnant females were supplemented with different levels of rice straw in the prepartum: 1) 20 cows in 9 hectares (ha) of natural pasture without rice straw supplementation and stocking rate of 1,000 kg

This study aimed to determine the importance of adding organic acids in mulard ducks feeding programs. Hence, the quality of anaerobically fermented high-moisture feed, in addition to, performance, carcass traits, intestinal histology and the most common gastrointestinal pathogens were evaluated in response to different levels of organic acids (OAs). Mulard ducklings (n = 400) were randomly allocated

Water is an absolute requirement in the daily needs of the pig. It has been suggested that when sows have a limited milk production, piglets may not consume enough water which will impact on their hydration. Eighty mixed parity sows of a high prolificacy genetic line were used to evaluate the impact of a flavor added to the drinking water for piglets on the voluntary water intake and performance during

To improve the productivity of smallholder cattle fattening, farmers will need to invest in higher quality concentrate-based diets which provide a return greater than the additional feed costs. This research assessed two formulations of elephant grass, cassava bagasse, palm kernel cake and copra meal mixes for average daily liveweight gain (ADG) and income over feed cost (IOFC), compared to a forage

Laurus nobilis, the leaves of which are used as a seasoning in cooking, is rich in active compounds such as phenols, flavonols and flavones, and has antioxidant and antimicrobial effects. This study evaluates the effects of the dietary supplementation with fat and dried bay leaves on growth performance and meat quality parameters of weaned rabbits. The trial lasted 56 days. At weaning (35 ± 2 days

The analyzed database contained growth information of five zebu breeds with live weight (LW) measurements in the range from birth to 1095 days of age. The objectives of this study were to identify the non-linear model (NLM) with the best fit to describe the growth curve. The number of LWs analyzed, per breed and sex (males and females), were: 21152 and 8269 in Indubrasil (IND), 40071 and 20968 in Nelore

Among the long-chain fatty acids (FA), the omega-3 (n-3) FA have the most potent immunomodulatory activities. In the present large-scale study, we tested the effects of supplementation of α-linolenic acid (ALA) from flaxseed commenced at the dry period on milk yield, health and fertility of dairy cows. Cows in a large commercial dairy farm were randomly divided into two groups 21 days before expected

Official data released in the 2017 cattle census reports that Brazil has 214,899,796 head, and the southern region has 12.58% of the national population. An estimated 20% of the population is composed of taurine breeds. Inbreeding or consanguinity is defined as mating of related individuals. Increasing prepotency, which is the ability of an individual to transmit its inheritance to different descendants

The purpose of this study was to identify genomic regions explaining a major proportion of the genetic variance in milk production and milk fat and protein content on a commercial herd of Holstein and Holstein x Jersey crossbred cattle bred in an extensive grazing system. We analyzed 305-day cumulative milk production records from 18876 cows at first lactation, of which 16907 and 16735 had milk fat

This study was conducted to investigate the effects of phytase (Phy), benzoic acid (BA) and their interactions on growth performance, nutrients digestibility and tibia mineralization in broiler chickens fed standard or nutrient,s deficient diets. A total of 768 one-d-old male chicks were divided into 8 treatments for 42 d. The treatments were as follows:positive control (PC), PC diet with 0.5 g/kg

The aim of the present in vivo study was to evaluate the efficacy of a novel multicomponent mycotoxin detoxifying agent, as mineral premix consisting of modified zeolite, Bacillus spp., yeast cell wall and silymarin (MMDA; Patent Co, Misicevo, Serbia), in-feed to adsorb mycotoxins zearalenone (ZEN) and T-2, administered through feed in weaned pigs. In total, 112 post-weaning barrows and gilts (Danbred

The effect of various slaughtering age options on the quality characteristics of subcutaneous backfat layers from Iberian x Duroc crossbred pigs under Montanera system was assessed. Three batches (IBxD16, IBxD14 and IBxD12) were established to start the Montanera with 14, 12 and 10 months of age and similar weight. After slaughter at 16, 14 and 12 months respectively, a piece of backfat was taken from

The present study evaluated the seasonal effects of transportation of goats (Alpine x Beetal) at different flocking densities, supplemented with Vitamin C in group I, Vitamin C + Electrolyte in group II and in group III Jaggery, 3 days before transport of animal, during winter and hot-humid seasons. The goats were selected from LRC, NDRI Karnal and were between 10-12 months old. Each group consisted

The effects of supplying water with an ‘in-house’ or commercial electrolyte formulation for 3 d during severe heat stress on performance and meat quality of meat chickens was investigated. At day 35 of age, Cobb-500 meat chickens (N = 22, 11 of each sex/treatment) were allocated to 36 floor pens (12 pens/ treatment). The three treatments were, 1: (Control) tap water; 2: ‘In-house’ electrolytes at 416

The objective of this study was to evaluate the effects of two bacillus strains probiotic (BP) supplement on reproduction performance, nutrient digestibility, blood profile, fecal noxious gas emission, and fecal microflora in lactation sows, and growth performance in their piglets. A total of 24 multiparous sows (Landrace × Yorkshire) and their litters were used in a 28 d experiment. On 111 d of gestation

The objective of this study was to evaluate the biomarkers of the redox state of pre-weaned Jersey dairy calves that consumed milk from cows supplemented with green tea (Camellia sinensis) or oregano extracts (Origanum vulgare). A completely randomized design was used with repeated measures in time. From their birth to 60 days of life, 8, 8 and 7 calves received milk from cows fed on a basal diet without

The majority of slatted concrete floors for group-housed sows are designed for ease of manure management. However, such floors can be associated with sows’ lying and walking discomfort, feet injuries and lameness. This study was designed to evaluate the impacts of a narrower slat and gap widths flooring on sow comfort and behaviour as well as manure management. Gilts were followed through two gestations

The profitability of dairy activity is influenced by the genetic selection of economically important traits. In this context, the correct estimation of genetic parameters and the knowledge regarding candidate genes involved in the expression of genetically associated traits may help develop appropriate breeding strategies for the Guzerá breed. In this study, genetic parameters and candidate genes were

The objective of this study was to estimate and describe phenotypic traits for carcass and meat quality in Nellore cattle belonging to the breeding programs. Data from 718 Nellore animals participated in the Delta Gen, CRV Paint and Nelore Qualitas breeding programs were used. Meat quality traits were measured and the data were analyzed. The following means and standard deviations of the meat quality

Kidding (n = 33,116) and monthly milking control (n = 96,359) records of Florida goats (n = 13,194) from the Spanish Florida Goat Breeders Association, collected between 2007 and 2016, were used to determine whether the presence of male co-twins affected the productive lifespan, and kid and milk production of does. The dataset included single-born (n = 3727), twin-born (n = 7573), triplet-born (n = 1784)

The purpose of this study was to identify biomarkers for fresh grass-clover intake and determine the digestibility and energy value of fresh grass to estimate voluntary fresh grass-clover intake in sows kept on pasture according to organic production practice. A total of sixteen multiparous dry sows (Danish Landrace x Danish Yorkshire) were housed in metabolism cages for 2 periods of 5 d. To study

The aim of this work was to study the effect of different feeding restriction strategies in growing rabbits. A total of 600 rabbits were weaned at 34 d, caged in groups (5 animals/cage; 24 cages/treatment) and randomly assigned to the 5 treatments. Control group (AL) ad libitum intake and the others four were restricted 80 and 70% of theoretical ad libitum intake (R80 and R70, respectively), during

To determine the influence of maternal nutrient restriction and rumen-protected arginine supplementation on post-ruminal digestive enzyme activity in lambs, 31 multiparous, Rambouillet ewes were allocated to one of three dietary treatments at 54 d of gestation. Dietary treatments were 100% of nutrient requirements (control, CON; n = 11), 60% of control (restricted, RES; n = 10), or RES plus 180 mg

The in situ nylon bag technique (ISNBT) is traditional and necessary for the evaluation of ruminant feed, but there are exists some disunity operation schemes. Therefor, we select one way that varying SS:SA to determine the effects of it on feed degradation in the rumen. Eight Yunnan semi-fine wool sheep fitted with permanent ruminal cannul as were used and the nylon bags containing different sample

The objective of this experiment was to evaluate mesquite extract as a phytogenic additive or supplementation for improving nutrient digestibility, carcass traits, physical composition, and meat quality in finished sheep on rangeland. The experiment was conducted in a Caatinga rangeland composed of herbaceous, shrub, and tree species. Santa Ines × Dorper F1 crossbred lambs (n=24) were used, with an

In dairy production systems, the use of strategies to increase production can be used, however some care must be taken to avoid the loss of nitrogen in the system, which is directly related to the environmental impacts. The aim with this study was to evaluate and the effect of the use of CP levels in concentrate in intensive systems on the productive performance and nitrogen metabolism of dairy cows

Two experiments were conducted to (1) investigate the effects of different doses of dihydroartemisinin (DiHA) on growth performance, nutrient digestibility, serum biochemistry, antioxidant and immune function in weaned piglets and determine the optimal dose of DiHA and (2) investigate the effects of DiHA on growth, intestinal digestive function and nutrient transporters in weaned piglets with intrauterine

The aim of this study was to validate whether acoustic data analysis can be used to assess respiration rate (RR) in dairy cattle under grazing systems. Two validation trials, one with heifers and other with lactating cows, were conducted. The RR derived from acoustic data acquired with an MP3 recorder fitted on the halter was compared to the RR derived from a visual method, counting flank movements

The aim of this research was to assess differences in pasture properties associated with grazing diverse swards. A total of six fields were studied on commercial farms in the west of the UK, with three fields being permanent pastures (M1, V2 and M2) and three temporary ley pastures (V1, V3 and M3). Each field was monitored monthly for three months during the autumn when all fields were being grazed

After weaning, piglets suffer from various stresses, and their immune function declines, causing diarrhoea and death. In recent years, the intestinal health of piglets has been a hot topic in the field of swine nutrition and feedstuff research. The present work aimed to investigate the effects of Clostridium butyricum (C. butyricum) on plasma immune function, antioxidant activity and plasma metabolomics

The hypothesis that inclusion of a rumen-inert fat in the diet of dairy-origin bulls would enhance EUROP carcass fat classification and tissue fatty acid composition was tested. Sixty bulls (age = 508 days, s.d. 29.1) were offered ad libitum, a barley-based concentrate ration that contained 0, (control) 26 (MEGA1) or 81 g (MEGA2) calcium salts of palm oil fatty acids (Megalac)/kg such that the rations

The reduction of age at puberty in young bulls is an important issue to reduce the growing phase and promote substantial savings in production cost as well as to reduce the generation interval. This study aims to estimate genetic parameters for age at puberty in males (APM), growth, carcass, and reproductive-related traits in young Nelore bulls. Additionally, the direct and correlated response for

The use of antibiotics in livestock farming has been a common practice for many years. As one of the leading causes of antibiotic resistance, posing serious threats to animal health, human health and food security, a change in this application practice is needed. However, antibiotics play a crucial role in disease management and control in animal farming, which highlights their relevance to both animal

Livestock populations have been consistently improving in terms of performance and productivity by selective breeding over the centuries. These selection strategies are expected to leave footprints in the genome that are identified as selection signatures. Due to advances in high-throughput technologies, the genome-wide detection of selection signatures has become more widespread in recent years. Such

Local sheep varieties in Kazakhstan remain currently out of scope of global sheep diversity studies despite their long history and proximity to historical centers of sheep domestication. In the present study we applied medium-scale SNP genotyping to five local sheep breeds for the first time in Kazakhstan in order to investigate their population structure and relation to global sheep diversity. Principal

This study aimed to evaluate the accuracy of genomic prediction using single-trait and multi-trait single-step genomic best linear unbiased prediction (ssGBLUP) based on 50 K SNP chip dataset and imputed high-density (HD) genotypes for various carcass traits in commercial Hanwoo population such as backfat thickness (BFT), carcass weight (CWT), rib eye area (REA), and marbling score (MS). Analyses involved

In a two-year study, grazing, resting and fouling behaviour of cattle grazing on heterogeneous semi-natural/naturalised continuously grazed, fenced pasture areas (sites), were examined using two and nine sites in year 1 and 2. Five vegetation types were identified and mapped out on the sites used in the study: four typical species-rich semi-natural vegetation types (dry, mesic, wet, shaded), and one

The objective of this study was to estimate genetic parameters for 7 traits of Nellore, to verify how the estimate breeding values (EBVs) of the traits are distributed in different Brazilian states, and to suggest a selection index by state/sex.Heritability (h2) and EBVs were estimated by single-trait analysis under animal model, using the AIREML method. In addition, relationships among animal EBVs

The objective of the study was to determine growth performance, carcass characteristics and fatty acid composition of pigs fed on graded levels of Vachellia tortilis leaf meal (VTLM) diets. Forty-eight male Large White × Landrace finishing pigs with a mean (±standard deviation) body weight of 63.6 ± 0.73 kg (mean ± SD) aged 14 weeks were used. Pigs were allocated to individual pens in a completely

Reduction of crude protein (CP) content in swine diets must be associated with an adequate quantitative and qualitative provision of amino acids (AA). In piglet diets, the fifth limiting AA is Val, where deficiency has been proven to reduce feed intake. In addition, depending on the overall level of CP and AA, diets high or low in standardized ileal digestible (SID) Lys will have different branched

The objective was to investigate the effect of split-suckling on the performance of piglets during the first three days of life. Split-suckling implies that not all piglets have access to the udder at all times; i.e. the litter is split-in two or more groups being nursed in alternating order, or only the heaviest piglets are enclosed temporarily; in order to benefit colostrum consumption and survival

This study aimed at investigating the effects of oat silage and sex on the growth performance, behaviour and antioxidants accretion in perirenal adipose tissue of organic pigs. In total, ninety-three crossbred pigs (51.8 ± 7.6 kg) from two sexes (entire males vs. females) were assigned to two dietary roughage supplement treatments (control with straw vs. 200 g dry matter/pig/day of oat silage supplement)

F4- and F18-positive enterotoxigenic Escherichia coli (ETEC) are well-known pathogens able to cause a severe swine disease with a worldwide economically importance in pig production. Vaccination of piglets with an oral live bivalent F4/F18 Escherichia coli vaccine has shown some promise and efficacy results in preventing ETEC post weaning diarrhoea (PWD); however, currently, there is a lack of knowledge

Hays Converter (HC), the first registered Canadian beef breed, was developed by Harry Hays in the 1950’s as a composite with contributions from Holstein, Hereford, Brown Swiss and with a later introgression of Angus. The breed is well adapted to the Western Canadian climate. Calves reach market weight early, convert feed to gain efficiently, and have excellent carcass quality and yield. The edited

Thermal stress in dairy cows has been studied to improve production efficiency and animal welfare. Several authors have verified the potential of infrared thermography (IRT) as noninvasive tool for monitoring the surface temperature of animals. In this study, machine learning-based models for the individual assessment of thermal stress levels in dairy cows (Holstein) were established and evaluated

The present study was conducted to evaluate the effects of different concentrations of metabolizable energy (ME), Lys, and Met + Cys on the growth performance of Japanese quail breeder, hatching eggs, and production performance of their offsprings by Taguchi method. Total of 630 Japanese quails (6-wk-old) were randomly distributed between 9 experimental treatments with 5 replicates (14 quails in each

This study aimed to investigate the effectiveness of employing a targeted nutritional regime until slaughter to maintain performance in animals recording high weaning weights. Low birthweight (Low BW; <1 kg) and average birthweight (Av BW; 1.3kg-1.7 kg) pigs were reared on sows exhibiting a high lactation feed intake and, as a result, weaning weights were 7.9 kg and 8.9 kg respectively. Pens containing

The objective of this study was to evaluate the effects of inclusion rates of corn dried distillers' grains with solubles (DDGS) on broiler chicken diets from d 0 to 21, and its effects on growth performance, intestinal morphology, blood metabolites, carcass and cut yields, and meat quality. A total of 980 one-day-old male broiler chickens were assigned to 7 diets (0, 10, 40, 70, 100, 130, and 160 g

The selection of replacements using applications such as reproductive tract scores and antral follicle count may be useful to eliminate less fertile animals before breeding. Previously, we reported that heifers with increased numbers of follicles achieved puberty earlier than heifers with diminished numbers of follicles. We, therefore, hypothesized that heifers that achieved a reproductive tract score

This study evaluated the relationships of postpartum uterine disease, parity and body condition score (BCS) to uterine score and their influence on pregnancy per artificial insemination (P/AI) at the first postpartum service of crossbred dairy cows. A total of 588 Holstein × Gir dairy cows from 20 farms were monitored during the first 35 days postpartum to diagnose retained placenta, metritis and clinical

The aim of this study was to examine the effects of including palm kernel cake (0, 120, 240 or 360 g/kg) in high-concentrate diets for feedlot goats on digestibility, nitrogen metabolism, ingestive behavior and performance. 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. The intake

The aim of the present study was to investigate the impact of and variation in both maternal and production input traits on the production economy within extensive and intensive suckler cow production systems. By use of a bio-economic model, feed intake, number of weaned calves, kilogram carcass produced, gross margin and labour costs for an average cow (including offspring) through one production

Inclusion of tannase enzyme in tannin-rich diets of lactating animals can be explored as a strategy to overcome the negative effects of tannins on feed utilization and lactational performance. The present study aimed to compare the effect of replacing commercially available exogenous tannase with a newly developed tannase, produced from Aspergillus terreus, on feed utilization and lactational performance

The selection index methodology is the best approach to increase profit in animal production by genetic selection due to the use of economic values for breeding goals. The aim of this study was to derive economic values through a deterministic bio-economic model in order to construct an economic selection index for dual-purpose Simmental cattle. Phenotypic, genetic and economic information from the

The aim of this study was to determine the nutritional potential of a multicarbohydrase and phytase complex (MCPC) through its effect on growth performance, carcass traits and bone characteristics in chickens fed wheat-corn soybean meal-based diets reduced in metabolizable energy (ME), digestible amino acids (dig. AA), available phosphorus (avP) and total calcium (Ca). A total of 3150-day-old Ross

The relationship between proportion of fodder beet root (FB: Beta vulgaris subsp. vulgaris L.) in a perennial ryegrass (Lolium perenne) diet and gas production was investigated in vitro. Cumulative gas production and fermentation products were measured in calibrated glass syringes using a factorial arrangement (4 x 6), of dry matter proportion of FB (0, 15, 35 and 50% DM: 0FB, 15FB, 35FB and 50FB,

This study investigated effect of various combinations of phytase, citric acid (CA), and vitamin D3 (D3) on phytate P utilization as evaluated by growth performance, serum minerals, and bone characteristics in broiler chickens fed the diet severely limited in non-phytate P. A total of 585 ten-day-old male broiler chickens were allocated to 9 diets from 11 to 38 d of age. There were a positive control

The objectives of this study were to quantitatively summarize factors associated with cow milk yield (MY) and calf growth response in pasture-based beef cow-calf suckler systems and to discern how cow genotype and parity influenced these responses. A dataset of 344 treatment mean observations was compiled from 69 studies that reported data on cow MY, and calf pre-weaning average daily live weight gain

The adverse influences of elevated ambient temperatures during the summer season on the rabbit industry have received increased global attention. Prodigiosin (PRG) is a natural pigment with powerful antioxidant activities. In this study, the aim was to explore the potential action of PRG for mitigating the negative impacts of heat stress in growing rabbits. A 120 growing rabbits (weaned, males, 35