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

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

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 and herd life (HL) weighted by 1 and 0.389 (currently used in Japan), respectively, in units of gene...

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Bibliographic Details
Main Authors: K. Togashi, K. Hagiya, T. Osawa, T. Nakanishi, T. Yamazaki, Y. Nagamine, C.Y. Lin, S. Matsumoto, M. Aihara, K. Hayasaka
Format: Article
Language:English
Published: Asian-Australasian Association of Animal Production Societies 2012-08-01
Series:Asian-Australasian Journal of Animal Sciences
Subjects:
Economic Weights
Milk Yield
Persistency
Herd Life
Selection Index
Online Access:http://www.ajas.info/upload/pdf/25-140.pdf

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