Article
Reaction norm model to describe environmental sensitivity across first lactation in dairy cattle under tropical conditions.
Tropical animal health and production - 1 Oct 2015
Bignardi Annaiza Braga, El Faro Lenira, Pereira Rodrigo Junqueira, Ayres Denise Rocha, Machado Paulo Fernando, de Albuquerque Lucia Galvão, Santana Mário Luiz
Abstract excerpt
Reaction norm models have been widely used to study genotype by environment interaction (G × E) in animal breeding. The objective of this study was to describe environmental sensitivity across first lactation in Brazilian Holstein cows using a reaction norm approach. A total of 50,168 individual monthly test day (TD) milk yields (10 test days) from 7476 complete first lactations of Holstein cattle were analyzed....
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