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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...
Autores principales: | , , , |
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Formato: | Texto |
Lenguaje: | English |
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BioMed Central
2001
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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. |
format | Text |
id | pubmed-2705408 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2001 |
publisher | BioMed Central |
record_format | MEDLINE/PubMed |
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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