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Genetic relationship between cyclic ovarian activity in heifers and cows and beef traits in males

Records were collected in an experimental herd over an 11-year period from purebred Charolais heifers (n = 351), cows (n = 615) and young entire bulls (n = 383). The objective of the study was to estimate the genetic relationship between the components of female ovarian activity (age at puberty and...

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Autores principales: Mialon, Marie-Madeleine, Renand, Gilles, Krauss, Daniel, Ménissier, François
Formato: Texto
Lenguaje:English
Publicado: BioMed Central 2001
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2705408/
https://www.ncbi.nlm.nih.gov/pubmed/11403748
http://dx.doi.org/10.1186/1297-9686-33-3-273
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author Mialon, Marie-Madeleine
Renand, Gilles
Krauss, Daniel
Ménissier, François
author_facet Mialon, Marie-Madeleine
Renand, Gilles
Krauss, Daniel
Ménissier, François
author_sort Mialon, Marie-Madeleine
collection PubMed
description Records were collected in an experimental herd over an 11-year period from purebred Charolais heifers (n = 351), cows (n = 615) and young entire bulls (n = 383). The objective of the study was to estimate the genetic relationship between the components of female ovarian activity (age at puberty and postpartum anoestrus length), their growth rate and body condition score and beef traits measured on related bulls. Two methods were used to estimate age at puberty and postpartum anoestrus length: the detection of oestrous behaviour and a test of cyclicity based on plasmatic progesterone assay. This study shows the existence of significant heritability estimates for the different cyclicity traits (h(2 )between 0.11 and 0.38). Most of the genetic correlation coefficients between ovarian activity and growth rate of females and males are negative and favourable (r(g )between -0.43 and 0.06). Cyclicity is also favourably related with body condition score in young or adult females (r(g )between -0.65 and -0.22). The genetic relationship between female ovarian activity and proportion of adipose tissue in the male carcass is, however, close to zero. These results show that an antagonism between male beef traits measured in this study and female ovarian activity is unlikely to be a cause for concern in the short term.
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spelling pubmed-27054082009-07-03 Genetic relationship between cyclic ovarian activity in heifers and cows and beef traits in males Mialon, Marie-Madeleine Renand, Gilles Krauss, Daniel Ménissier, François Genet Sel Evol Research Records were collected in an experimental herd over an 11-year period from purebred Charolais heifers (n = 351), cows (n = 615) and young entire bulls (n = 383). The objective of the study was to estimate the genetic relationship between the components of female ovarian activity (age at puberty and postpartum anoestrus length), their growth rate and body condition score and beef traits measured on related bulls. Two methods were used to estimate age at puberty and postpartum anoestrus length: the detection of oestrous behaviour and a test of cyclicity based on plasmatic progesterone assay. This study shows the existence of significant heritability estimates for the different cyclicity traits (h(2 )between 0.11 and 0.38). Most of the genetic correlation coefficients between ovarian activity and growth rate of females and males are negative and favourable (r(g )between -0.43 and 0.06). Cyclicity is also favourably related with body condition score in young or adult females (r(g )between -0.65 and -0.22). The genetic relationship between female ovarian activity and proportion of adipose tissue in the male carcass is, however, close to zero. These results show that an antagonism between male beef traits measured in this study and female ovarian activity is unlikely to be a cause for concern in the short term. BioMed Central 2001-05-15 /pmc/articles/PMC2705408/ /pubmed/11403748 http://dx.doi.org/10.1186/1297-9686-33-3-273 Text en Copyright © 2001 INRA, EDP Sciences
spellingShingle Research
Mialon, Marie-Madeleine
Renand, Gilles
Krauss, Daniel
Ménissier, François
Genetic relationship between cyclic ovarian activity in heifers and cows and beef traits in males
title Genetic relationship between cyclic ovarian activity in heifers and cows and beef traits in males
title_full Genetic relationship between cyclic ovarian activity in heifers and cows and beef traits in males
title_fullStr Genetic relationship between cyclic ovarian activity in heifers and cows and beef traits in males
title_full_unstemmed Genetic relationship between cyclic ovarian activity in heifers and cows and beef traits in males
title_short Genetic relationship between cyclic ovarian activity in heifers and cows and beef traits in males
title_sort genetic relationship between cyclic ovarian activity in heifers and cows and beef traits in males
topic Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2705408/
https://www.ncbi.nlm.nih.gov/pubmed/11403748
http://dx.doi.org/10.1186/1297-9686-33-3-273
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