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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...
Lactation Persistency as a Component Trait of the Selection Index and Increase in Reliability by Using Single Nucleotide Polymorphism in Net Merit Defined as the First Five Lactation Milk Yields and Herd Life
Economic Weights Milk Yield Persistency Herd Life Selection Index
2016/5/10
We first sought to clarify the effects of discounted rate, survival rate, and lactation persistency as a component trait of the selection index on net merit, defined as the first five lactation milks ...
Genetic Persistency of First Lactation Milk Yield Estimated Using Random Regression Model for Indian Murrah Buffaloes
Indian Murrah Buffaloes Wilmink Function Daily Breeding Values Genetic Persistency
2016/4/22
A random regression model was applied for the first time for the analysis of test day records and to study the genetic persistency of first lactation milk yield of Indian Murrah buffaloes. Wilmink??s ...
Genetic Aspects of Persistency of Milk Yield in Boutsico Dairy Sheep
Dairy Sheep Milk Yield Persistency Genetic Parameters
2016/4/8
Test-day records (n=13677) sampled from 896 ewes in 5-9 (=7.5) monthly test-days were used to estimate genetic and phenotypic parameters of test-day yields, lactation milk yield (TMY), length ...