Estimation of genetic parameters for superovulatory response traits in Japanese Black cows.
Japanese Black
breeding value
embryo production
genetic parameter estimate
superovulatory response
Journal
Journal of animal science
ISSN: 1525-3163
Titre abrégé: J Anim Sci
Pays: United States
ID NLM: 8003002
Informations de publication
Date de publication:
01 Oct 2021
01 Oct 2021
Historique:
received:
29
04
2021
accepted:
20
09
2021
pubmed:
8
10
2021
medline:
3
11
2021
entrez:
7
10
2021
Statut:
ppublish
Résumé
The aim of this study was to estimate genetic parameters for superovulatory response traits in order to explore the possibility of genetic improvement in Japanese Black cows. We analyzed 19 155 records of the total number of embryos and oocytes (TNE) and the number of good embryos (NGE) collected from 1532 donor cows between 2008 and 2018. A two-trait repeatability animal model analysis was performed for both. Because records of TNE and NGE did not follow a normal distribution, the records were analyzed following no, logarithmic, or Anscombe transformation. Without transformation, the heritability estimates were 0.26 for TNE and 0.17 for NGE. With logarithmic transformation, they were 0.22 for TNE and 0.18 for NGE. With Anscombe transformation, they were 0.26 for TNE and 0.18 for NGE. All analyses gave similar genetic correlations between TNE and NGE, ranging from 0.60 to 0.71. Spearman's rank correlation coefficient between breeding values of cows with more than 10 records was ≥0.95 with both transformations. Thus, the genetic improvement of TNE and NGE of donor cows could be possible in Japanese Black cattle.
Identifiants
pubmed: 34618902
pii: 6383484
doi: 10.1093/jas/skab265
pmc: PMC8557630
pii:
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Informations de copyright
© The Author(s) 2021. Published by Oxford University Press on behalf of the American Society of Animal Science.
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