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Genetic relationship between type traits, number of lactations initiated, and lifetime milk performance in Czech Fleckvieh cattle
dairy cows longevity lifetime performance conformation traits
2017/12/25
Genetic relationship was analyzed between type traits and longevity measures in dual-purpose cattle. Data from 91 486 Czech Fleckvieh cows first calved between 2003 and 2009 were used. Longevity was d...
Genetic relationship between type traits, number of lactations initiated, and lifetime milk performance in Czech Fleckvieh cattle
dairy cows longevity lifetime performance conformation traits genetic correlation
2018/3/5
Genetic relationship was analyzed between type traits and longevity measures in dual-purpose cattle. Data from 91 486 Czech Fleckvieh cows first calved between 2003 and 2009 were used. Longevity was d...
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...
Investigations on Genetic Architecture of Hairy Loci in Dairy Cattle by Using Single and Whole Genome Regression Approaches
Genome Wide Association Analyses Discordant Sib Pair Analyses Whole Genome Regression Analyses
2016/7/27
Development of body hair is an important physiological and cellular process that leads to better adaption in tropical environments for dairy cattle. Various studies suggested a major gene and, more re...
Estimation of Genetic Parameters for First Lactation Monthly Test-day Milk Yields using Random Regression Test Day Model in Karan Fries Cattle
Test-day Milk Yield Random Regression Model Heritability Genetic Correlation Karan Fries Cattle
2016/7/27
A single trait linear mixed random regression test-day model was applied for the first time for analyzing the first lactation monthly test-day milk yield records in Karan Fries cattle. The test-day mi...
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...
Haplogroup Classification of Korean Cattle Breeds Based on Sequence Variations of mtDNA Control Region
Haplogroup mtDNA Control Region Korean Cattle Breed Phylogenetic Tree
2016/5/20
Many studies have reported the frequency and distribution of haplogroups among various cattle breeds for verification of their origins and genetic diversity. In this study, 318 complete sequences of t...
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 ...
Study of Genetic Diversity among Simmental Cross Cattle in West Sumatra Based on Microsatellite Markers
Simmental West Sumatra Microsatellite Genetic Diversity
2016/5/19
A study was conducted to assess the genetic diversity among Simmental Cross cattle in West Sumatra using microsatellite DNA markers. A total of 176 individual cattle blood samples was used for obtaini...
National Genetic Evaluation (System) of Hanwoo (Korean Native Cattle)
Hanwoo Genetic Trend Parameter
2016/5/11
Hanwoo (Also known as Korean native cattle; Bos taurus coreanae) have been used for transportation and farming for a long time in South Korea. It has been about 30 yrs since Hanwoo improvement began i...
Genetic Parameter Estimates of Carcass Traits under National Scale Breeding Scheme for Beef Cattle
Hanwoo Carcass Genetic Parameters Genetic Progress National Breeding Scheme
2016/11/10
Carcass and price traits of 72,969 Hanwoo cows, bulls and steers aged 16 to 80 months at slaughter collected from 2002 to 2013 at 75 beef packing plants in Korea were analyzed to determine heritabilit...
Genetic Parameters for Milk Yield and Lactation Persistency Using Random Regression Models in Girolando Cattle
Lactation Persistency Legendre’s Polynomials Random Regression Model Cattle
2016/5/19
A total of 32,817 test-day milk yield (TDMY) records of the first lactation of 4,056 Girolando cows daughters of 276 sires, collected from 118 herds between 2000 and 2011 were utilized to estimate the...
African Indigenous Cattle: Unique Genetic Resources in a Rapidly Changing World
Africa Cattle Climate Indigenous Genetic Resource
2016/5/18
At least 150 indigenous African cattle breeds have been named, but the majority of African cattle populations remain largely uncharacterized. As cattle breeds and populations in Africa adapted to vari...
Polymorphisms in Epigenetic and Meat Quality Related Genes in Fourteen Cattle Breeds and Association with Beef Quality and Carcass Traits
Protein Kinase Subunit Gamma-3 Gene PRKAG3 Beef Quality Carcass Traits
2016/5/18
Improvement for carcass traits related to beef quality is the key concern in beef production. Recent reports found that epigenetics mediates the interaction of individuals with environment and nutriti...
Effects of Castration on Expression of Lipid Metabolism Genes in the Liver of Korean Cattle
Korean Cattle Liver Bulls Steers Gene Expression
2016/5/17
Castration induces the accumulation of body fat and deposition of intramuscular fat in Korean cattle, resulting in improved beef quality. However, little is known about the metabolic adaptations in th...