搜索结果: 1-15 共查到“畜牧学 calves”相关记录49条 . 查询时间(0.102 秒)
Influence of methionine supplementation of growing diets enriched with lysine on feedlot performance and characteristics of digestion in Holstein steer calves
Holstein Feedlot Amino Acid Supplementation Performance Digestion
2017/3/7
Two trials were conducted in order to examine the effects of level of supplemental methionine on productive performance, dietary energetic, plasma amino acid concentration, and digestive function.
Performance and Metabolism of Calves Fed Starter Feed Containing Sugarcane Molasses or Glucose Syrup as a Replacement for Corn
By-product Sucrose Butyrate Ruminal Development
2016/7/27
The aim of this study was to evaluate the effect of replacing corn grain for sugar cane molasses (MO) or glucose syrup (GS) in the starter concentrate on performance and metabolism of dairy calves. Th...
Effects of Varying Levels of Fungal (Arachniotus sp.) Treated Wheat Straw as an Ingredient of Total Mixed Ration on Growth Performance and Nutrient Digestibility in Nili Ravi Buffalo Calves
Fungal Treated Wheat Straw Nili Ravi Buffalo Calves Total Mixed Ration
2016/5/19
The study was carried out to explore the effects of replacing wheat straw with fungal treated wheat straw as an ingredient of total mixed ration (TMR) on the growth performance and nutrient digestibil...
Number of Calves Produced at Specified Age as a Measure of Reproductive Performance in Beef Cattle under Artificially-Inseminated Breeding Scheme
Beef Cattle Genetic Parameter Number of Calves Produced Reproductive Performance
2016/4/29
Reproductive abilities in beef cattle herds are receiving increased attention due to recent rises in production costs. To achieve more efficient management, a measure of fertility, namely the number o...
Effect of weaning calves from mother at different ages on their growth and milk yield of mothers
calf cow restricted suckling weaning growth milk production
2015/6/9
The aim of this study was to determine the impact of the length of calf sucking milk from its own mother on calf growth at the age of 3 months and milk yield of mothers. We tested a hypothesis that th...
Growth and carcass performance of bull calves born from Hereford, Simmental and Charolais cows sired by Charolais bulls
beef bull calves crossbreds body weight
2015/6/8
The analysis comprised purebred Charolais bull calves (CH) and crossbred bull calves born from Hereford (CH × HE) and Simmental (CH × SI) cows. Body weights and daily gains were measured in subsequent...
Rumen fermentation characteristics in pre-weaning calves receiving yeast culture supplements
Holstein calves Saccharomyces cerevisiae Kluyveromyces fragilis
2015/6/8
In an experiment with 45 neonatal male Holstein calves, effects of yeast cultures Yea-Sacc?1026 (SC) containing Saccharomyces cerevisiae (strain 1026) and Vitex (KF) containing Kluyveromyces fragilis ...
Calving difficulty as related to body weights and measurements of cows and calves in a herd of Gascon breed
beef cattle course of parturition pelvic measurements calving difficulty
2015/6/5
This study was conducted to evaluate the body weights and measurements of 86 Gascon calves and their dams. The effects of the course of parturition, parity of the dams, sex of the calves, and live- or...
Effect of Suckling Systems on Serum Oxytocin and Cortisol Concentrations and Behavior to a Novel Object in Beef Calves
Oxytocin Cortisol Natural Suckling Investigative Behavior Calf Stress
2016/5/19
We investigated differences between effects of natural- and bucket-suckling methods on basal serum oxytocin (OT) and cortisol concentrations, and the effect of OT concentration on affiliative and inve...
Effects of Bedding Material Composition in Deep Litter Systems on Bedding Characteristics and Growth Performance of Limousin Calves
Serum Physico-chemical Parameters Ammonia-N Limousin Calves
2016/5/17
The objective of this study was to evaluate the effects of different litter mixture compositions on bedding system temperature, pH and volatile fatty acid and ammonia-N (NH3-N) content, and the serum ...
Influence of feeding system on growth performance, carcass characteristics and meat and fat quality of Avileña-Negra Ibérica calves’ breed
grass-fed calves carcass traits fatty acids intramuscular fat meat colour
2014/10/24
The effect of feeding system (calves reared under free-range conditions supplemented with concentrate vs. calves fed on concentrate and cereal straw in confinement) during finishing period on growth p...
The Effects of Thyme and Cinnamon Essential Oils on Performance, Rumen Fermentation and Blood Metabolites in Holstein Calves Consuming High Concentrate Diet
Blood Metabolites Growth Performance Beef Cattle
2016/5/12
Essential oils have been shown to favorably effect in vitro ruminal fermentation, but there are few in vivo studies that have examined animal responses. The objective of this study was to evaluate the...
Effects of Feeding Levels of Starter on Weaning Age, Performance, Nutrient Digestibility and Health Parameters in Holstein Dairy Calves
Holstein Dairy Calves Levels of Starter Health Performance
2016/5/11
To evaluate the effects of feeding four different levels of starter in male Holstein dairy calves, a completely randomized study was conducted, using 28 calves with initial body weight of 40.5±2.4 kg....
Limiting Concentrate during Growing Period Affect Performance and Gene Expression of Hepatic Gluconeogenic Enzymes and Visfatin in Korean Native Beef Calves
Calf, Concentrate, Growth, Gluconeogenic Enzymes, Plasma
2016/5/11
This study elucidated the effects of limited concentrate feeding on growth, plasma profile, and gene expression of gluconeogenic enzymes and visfatin in the liver of Hanwoo beef calves. The purpose of...
Effects of Probiotic and Prebiotic on Average Daily Gain, Fecal Shedding of Escherichia Coli, and Immune System Status in Newborn Female Calves
Holstein Calves Multi-strain Probiotic Mannanoligosaccharides Beta-glucan E. coli Count
2016/5/10
Thirty two Holstein female calves (initial body weight = 40±3.0 kg) were used to investigate the effects of probiotic and prebiotic on average daily gain (ADG), fecal E. coli count, white blood cell c...