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Random Regression Models Using Legendre Polynomials to Estimate Genetic Parameters for Test-day Milk Protein Yields in Iranian Holstein Dairy Cattle
Holstein Dairy Cattle Milk Protein Yields Random Regression Model Test-day Records
2016/12/28
The objective of this study was to estimate the genetic parameters of milk protein yields in Iranian Holstein dairy cattle. A total of 1,112,082 test-day milk protein yield records of 167,269 first la...
Random Regression Models Are Suitable to Substitute the Traditional 305-Day Lactation Model in Genetic Evaluations of Holstein Cattle in Brazil
Legendre Polynomials 305-Day Milk Yield Breeding Values Reliability Brazilian Holstein
2016/7/27
The aim of this study was to compare two random regression models (RRM) fitted by fourth (RRM4) and fifth-order Legendre polynomials (RRM5) with a lactation model (LM) for evaluating Holstein cattle i...
Models for Estimating Genetic Parameters of Milk Production Traits Using Random Regression Models in Korean Holstein Cattle
Random Regression Model Test Day Yield Milk Production Heritability Holstein
2016/5/20
The objectives of the study were to estimate genetic parameters for milk production traits of Holstein cattle using random regression models (RRMs), and to compare the goodness of fit of various RRMs ...
Genetic Analysis of Milk Yield in First-Lactation Holstein Friesian in Ethiopia: A Lactation Average vs Random Regression Test-Day Model Analysis
Dairy Cattle Genetic Parameters Random Regression Test-Day Model Test-Day Records
2016/5/18
The development of effective genetic evaluations and selection of sires requires accurate estimates of genetic parameters for all economically important traits in the breeding goal. The main objective...
Genetic Parameters for Linear Type Traits and Milk, Fat, and Protein Production in Holstein Cows in Brazil
Dairy Cattle Functional Trait Genetic Correlation Heritability Selection
2016/5/18
The objective of this study was to estimate genetic and phenotypic parameters for linear type traits, as well as milk yield (MY), fat yield (FY) and protein yield (PY) in 18,831 Holstein cows reared i...
Study on Genetic Evaluation for Linear Type Traits in Holstein Cows
Dairy Cattle Linear Type Trait Genetic Evaluation International Comparison
2016/5/3
The objectives of this study were to i) investigate genetic performance for linear type traits of individual Holstein dairy cows, especially focusing on comparative traits, and to estimate genetic var...
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...
Polymorphism Identification, RH Mapping and Association of Lactalbumin Gene with Milk Performance Traits in Chinese Holstein
Lactalbumin SNP Milk Performance Traits RH Mapping Chinese Holstein
2016/4/26
Lactose synthase catalyses the formation of lactose which is the major osmole of bovine milk and regulates the milk volume. Alpha-lactalbumin (??LA) is involved in the synthesis of lactose synthase in...
Association between SNPs within Prolactin Gene and Milk Performance Traits in Holstein Dairy Cattle
Holstein Dairy Cattle Prolactinx Prolactin Haplotype SNPs Milk Performance Traits
2016/4/22
Prolactin plays an important role in mammary gland development, milk section initiation and maintenance of lactation, so the bovine prolactin gene is considered as a potential quantitative trait locus...
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...
Genetic Variation of Growth Hormone Gene and Its Relationship with Milk Production Traits in China Holstein Cows
China Holstein Cows Growth Hormone Gene PCR-RFLP Genetic Polymorphism Milk Production Traits
2016/4/20
Associations were analysed between polymorphisms localized in intron 3 of the growth hormone gene (GH-MspI) and milk production traits of 543 China Holstein cows. A PCR-RFLP method was used for identi...
Genetic Parameters of Milk Yield and Milk Fat Percentage Test Day Records of Iranian Holstein Cows
Genetic Parameters TD Records Animal Model Iranian Holstein
2016/4/20
Genetic parameters for first lactation milk production based on test day (TD) records of 56319 Iranian Holstein cows from 655 herds that first calved between 1991 and 2001 were estimated with restrict...
Genetic Studies and Development of Prediction Equations in Jersey×Sahiwal and Holstein-Friesian×Sahiwal Half Breds
Genetic Study Prediction Equations Jersey Holstein-friesian Sahiwal
2016/4/18
First lactation records (174) of Jersey횞Sahiwal and Holstein Friesian횞Sahiwal half breds under 9 sires maintained at Chandra Shekher Azad University of Agriculture and Technology, Kanpur...
Heritability and Repeatability of Superovulatory Responses in Holstein Population in Hokkaido, Japan
Holstein Superovulatory Responses Heritability Repeatability
2016/4/11
The aim of this study was to estimate heritability and repeatability for the number of embryos and transferable embryos collected per flush in Holstein population in Hokkaido, Japan. Data consisted of...