TY - JOUR
T1 - Influence of temperament-related genes on live weight traits of Charolais cows
AU - Garza-Brenner, Estela
AU - Sifuentes-Rincón, Ana María
AU - Rodríguez-Almeida, Felipe Alonso
AU - Randel, Ronald D.
AU - Parra-Bracamonte, Gaspar Manuel
AU - Arellano-Vera, Williams
N1 - Publisher Copyright:
© Sociedade Brasileira de Zootecnia.
PY - 2020
Y1 - 2020
N2 - We investigated whether a panel of molecular markers previously associated with temperament has an effect on live growth traits. Phenotypic data from 412 Charolais cows categorized according to their age in adult and young cows were used to determine Pearson's correlations between birth (BW), weaning (WW), and yearling live (YW) weight and temperament traits (measured as exit velocity [EV] and temperament score [TS]). For association analysis, selective genotyping of a group of 80 cows identified as the most docile and temperamental were genotyped with a 151-SNP (single-nucleotide polymorphisms) panel of molecular markers previously associated with temperament. Significant Pearson's correlations between birth weight and weaning weight and the two temperament measurements (EV and TS) were observed only in the young cow group. Significant effects of ten SNP on BW and WW were observed. Four markers located on candidate genes for temperament traits also had an effect on birth weight and weaning weight in Charolais cows, which indicates that both traits could be influenced by the same genes.
AB - We investigated whether a panel of molecular markers previously associated with temperament has an effect on live growth traits. Phenotypic data from 412 Charolais cows categorized according to their age in adult and young cows were used to determine Pearson's correlations between birth (BW), weaning (WW), and yearling live (YW) weight and temperament traits (measured as exit velocity [EV] and temperament score [TS]). For association analysis, selective genotyping of a group of 80 cows identified as the most docile and temperamental were genotyped with a 151-SNP (single-nucleotide polymorphisms) panel of molecular markers previously associated with temperament. Significant Pearson's correlations between birth weight and weaning weight and the two temperament measurements (EV and TS) were observed only in the young cow group. Significant effects of ten SNP on BW and WW were observed. Four markers located on candidate genes for temperament traits also had an effect on birth weight and weaning weight in Charolais cows, which indicates that both traits could be influenced by the same genes.
KW - Beef cattle
KW - Behavior
KW - Body weight
KW - Candidate genes
KW - SNP
KW - Temperament
UR - http://www.scopus.com/inward/record.url?scp=85084048067&partnerID=8YFLogxK
U2 - 10.37496/RBZ4920180121
DO - 10.37496/RBZ4920180121
M3 - Artículo
SN - 1516-3598
VL - 49
JO - Revista Brasileira de Zootecnia
JF - Revista Brasileira de Zootecnia
M1 - 0121
ER -