搜索结果: 1-13 共查到“生物学 Bulls”相关记录13条 . 查询时间(0.044 秒)
Selection of Sahiwal Cattle Bulls on Pedigree and Progeny
Sahiwal Cattle Bull Selection Pedigree Progeny Milk Yield
2016/4/25
The objective of the study was to compare ranking of Sahiwal bulls selected on the basis of highest lactation milk yield of their dams with their estimated breeding values (EBVs) using an animal model...
Use of computer image analysis for in vivo estimates of the carcass quality of bulls
cattle carcass quality computer image analysis Slovak Pied breed
2015/6/4
The aims of the paper were to construct models for the estimation of carcass quality by means of computer image analysis and to verify computer photometry as an in vivo method of carcass quality predi...
Animal Performance and Carcass Characteristics of Bulls (1/2 Purunã vs 1/2 Canchim) Slaughtered at 16 and 22 Months Old, and Three Different Weights
Crossbreeding Feedlot Feed Intake Slaughter Age
2016/5/18
Current study aimed to evaluate the performance of bulls (1/2 Purunã vs 1/2 Canchim) slaughtered at two ages and three different weights. One hundred and thirteen bulls were divided into two slau...
The Effect of Slaughter Season on the Fatty Acid Profile in Four Types of Fat Deposits in Crossbred Beef Bulls
Beef Fatty Acids Gas Chromatography Slaughter Season Fat Deposit
2016/5/11
The objective of this study was to determine the effect of slaughter season on the fatty acid profile in four types of fat deposits in crossbred (Polish Holstein Friesian Black-and-White×Limousine) be...
Replacing Concentrate with Wheat Straw Treated with Urea Molasses and Ensiled with Manure: Effects on Ruminal Characteristics, In situ Digestion Kinetics and Nitrogen Metabolism of Nili-Ravi Buffalo Bulls
Wheat Straw Cattle Manure Ruminal Characteristics Nitrogen Balance Buffalo Bulls
2016/5/6
To evaluate the effects of replacing concentrate with urea molasses treated fermented wheat straw (FWS) ensiled with cattle manure (CM) on ruminal characteristics, in situ digestion kinetics and nitro...
Genetic Evaluation and Calculating Daughter Yield Deviation of Bulls in Iranian Holstein Cattle for Milk and Fat Yields
Daughter Yield Deviation Genetic Evaluation Genetic Trend Holstein Cows
2016/4/29
This study was aimed at a genetic evaluation of Iranian Holstein cattle for milk and fat yields and calculating daughter yield deviation (DYD) of bulls. The data file that was used in this research in...
Influence of Varying Dry Matter and Molasses Levels on Berseem and Lucerne Silage Characteristics and Their In situ Digestion Kinetics in Nili Buffalo Bulls
Berseem Lucerne Silage Legume Buffalo Digestion
2016/4/25
Influences of forage DM and addition of cane molasses on silage characteristics of berseem (Trifolium alexandrium) and lucerne (Medicago sativa) and their ruminal digestion kinetics in Nili buffaloes ...
Estimation of Genetic Variation in Holstein Young Bulls of Iran AI Station Using Molecular Markers
Parentage Control Genetic Diversity Inbreeding Microsatellite Markers
2016/4/21
Genetic profiles of Iranian Holstein young bulls at the national artificial insemination station were determined on the basis of individual genotypes at 13 ISAG''s recommended microsatellites, the mos...
The Role of Mercury in the Etiology of Sperm Dysfunction in Holstein Bulls
Mercury Bull Sperm Membrane and DNA Integrity Viability Acrosome Reaction
2016/4/20
A large number of toxicological substances and pharmacological and physical agents can cause reproductive intervention at the cellular and molecular level. The present study was designed to assess the...
Association of Candidate Genes with Production Traits in Korean Dairy Proven and Young Bulls
Prolactin Hormone Polymorphisms Information Contents 305-day Production Traits Predicted Transmitting Ability
2016/4/18
This study was performed to offer effective basic data for selection and improvement of Korean dairy cattle through identifying distributional properties among candidate genes (bovine butyrophilin, si...
Post-thaw Thermal Resistance Test on Motility and Acrosomal Integrity of Filtered and Non-filtered Frozen Semen of Murrah Buffalo Bulls
Murrah Bull Sephadex Filtration Frozen Semen Motility Acrosomal Integrity
2016/4/14
Present investigation was conducted to determine the post-thaw sperm motility and acrosomal damage of filtered and non-filtered frozen semen of Murrah buffalo bulls. Twenty semen ejaculates (from four...
Genetic Polymorphisms of BTN and STAT5a Genes in Korean Proven and Young Bulls
Butyrophilin Signal Transducers and Activators of Transcription Quantitative Trait Loci
2016/4/11
This study was performed to detect polymorphisms of the two candidate genes, bovine BTN (Butyrophilin) and STAT5a (Signal Transducers and Activators of Transcription) gene using 98 Holstein bulls' fro...
Genotype Profiles for the Quantitative Trait Related to Milk Composition in Bulls Used for Artificial Insemination in India
κ-Casein β-Lactoglobulin Quantitative Trait Artificial Insemination Genotyping
2016/4/8
A population of exotic Holstein Friesian, Jersey, their crossbreds and the indigenous Murrah breed of buffalo bulls (n=486), used in artificial insemination breeding program were screened for the alle...