Genotype-environment interaction for age at first calving in buffaloes, using the reaction norm model

被引：5
|
作者：
Freitas, Gabriela Rodrigues [1 ]
Alejandro Hurtado-Lugo, Naudin [2 ]
de Abreu dos Santos, Daniel Jordan [3 ,4 ]
Aspilcueta Borquis, Rusbel Raul [5 ]
Pegolo, Newton Tamassia [6 ]
Tonhati, Humberto [4 ]
de Araujo Neto, Francisco Ribeiro [1 ]
机构：
[1] Inst Fed Goiano, Rio Verde, Brazil
[2] Univ Francisco de Paula Santander Ocana, Ocana, Colombia
[3] Univ Maryland, College Pk, MD 20742 USA
[4] Univ Estadual Paulista, Jaboticabal, Brazil
[5] Fundacao Univ Fed Grande Dourados, Dourados, Brazil
[6] Inst Fed Sao Paulo, Avare, Brazil
来源：
REPRODUCTION IN DOMESTIC ANIMALS | 2019年 / 54卷 / 04期
关键词：
economic traits; environmental response; reproduction; NELLORE CATTLE; REPRODUCTIVE TRAITS; WEIGHT; NORTHEAST; HOLSTEINS; DESCRIBE;
D O I：
10.1111/rda.13414
中图分类号：
S8 [畜牧、 动物医学、狩猎、蚕、蜂];
学科分类号：
0905 ;
摘要：
Contents The objective of this study was to evaluate the genotype-environment interaction effect on age at first calving in buffaloes. The records were analysed using two approaches: (a) standard animal model and (b) reaction norm model. For the reaction norm analysis, two environmental gradients were formed, using age of first calving or milk yield group contemporary average. The results showed differences in the heritability estimates when using the two approaches. The reaction norm model indicated high heritability in more favourable environments and low magnitude genetic correlations between extreme environments. Based on our findings, we verified the significance of the genotype-environment interaction effect on age at first calving in buffaloes.
引用
收藏
页码：727 / 732
页数：6
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