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Genetic evaluation of clinical mastitis traits in Holstein cattle
udder health mastitis resistance genetic parameters genetic trend
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2018/11/23
The results obtained from different models for predicting breeding values for clinical mastitis (CM) in Holstein cattle were compared. CM was recorded in 30 882 lactations of 12 793 cows in 8 herds fr...
L-selectin gene polymorphism and its association with clinical mastitis, somatic cell score, and milk production in Polish Holstein-Friesian cattle
SELL udder inflammation milk production traits cows
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2018/11/23
Bovine mastitis is a widespread disease of the mammary gland, highly contributing to the increase in veterinary costs in dairy industry. In the present study, the genetic polymorphism within bovine L-...
Associations between gene polymorphisms, breeding values, and glucose tolerance test parameters in German Holstein sires
Bos taurus milk glucose metabolism DGAT1 GH1 GHR FASN OLR1 ABCG2
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2018/11/23
The association between several gene polymorphisms, the estimated breeding values for milk performance traits, and glucose metabolism measured by the glucose tolerance test (GTT) in German Holstein si...
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
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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
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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
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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 ...
Characterizing Milk Production Related Genes in Holstein Using RNA-seq
RNA-seq Holstein Milk Production Meta-analysis Milk Yield Differentially Expressed Gene
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2016/5/19
Although the chemical, physical, and nutritional properties of bovine milk have been extensively studied, only a few studies have attempted to characterize milk-synthesizing genes using RNA-seq data. ...
Genetic correlations between longevity and conformation traits in the Czech Holstein population
cows Holstein breed longevity
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2015/6/23
Genetic correlations between longevity and conformation traits were estimated using data
on Czech Holstein cows first calved in the years 1993–2008. Longevity traits considered were length of
prod...
The relationship between somatic cell count, milk production and six linearly scored type traits in Holstein cows
cattle linear evaluation of type traits somatic cell count milk production
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2015/6/4
Test-day records of somatic cell count (SCC), milk yield, fat and protein content and six linearly scored type traits (fore udder attachment, udder depth, central ligament, rear udder height, front te...
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
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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
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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...
Differences in Voluntary Cow Traffic between Holstein and Illawarra Breeds of Dairy Cattle in a Pasture-based Automatic Milking System
Breed Voluntary Cow Traffic Automatic Milking System
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2016/5/16
Automatic milking systems (AMS) rely upon voluntary cow traffic (the voluntary movement of cattle around a farm) for milk harvesting and feed consumption. Previous research on conventional milking sys...
Effect of Dietary Cation-Anion Difference during Prepartum and Postpartum Periods on Performance, Blood and Urine Minerals Status of Holstein Dairy Cow
Dietary Cation-anion Difference Lactation Acid-base Balance Calcium Health Status Dairy Cow
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2016/5/9
Twenty four periparturient cows were used to determine the effects of DCAD on acid-base balance, plasma and urine mineral concentrations, health status, and subsequent lactation performance. Each grou...
Hemato-biochemical and Cortisol Profile of Holstein Growing-calves Supplemented with Vitamin C during Summer Season
Vitamin C Hemato-biochemical Cortisol Growing Calves
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2016/5/9
Effect of vitamin C (VC) on biochemical, hematological and cortisol profile of growing Holstein calves during summer was investigated. Eighteen calves between 14 and 16 weeks of age were divided equal...
Holstein magneto-polarons: from Landau levels to Hofstadter butterflies
Holstein magneto-polarons Landau levels Hofstadter butterflies
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2010/11/19
We study the Holstein polaron in transverse magnetic field using non-perturbational methods. At
strong fields and large coupling, we show that the polaron has a Hofstadter spectrum, however very dist...