Estimation of genetic parameters for superovulatory response traits in Japanese Black cows-Reference-Cited by-同舟云学术

Estimation of genetic parameters for superovulatory response traits in Japanese Black cows

Published:2021-10-01 Issue:10 Volume:99 Page:
ISSN:0021-8812
Container-title:Journal of Animal Science
language:en
Short-container-title:

Author:

Zoda Atsushi¹²,Urakawa Manami¹,Oono Yoshio¹,Ogawa Shinichiro²,Satoh Masahiro²

Affiliation:

1. Research and Development Group, Zen-noh Embryo Transfer Center, Kamishihoro, Hokkaido, 080-1407, Japan

2. Graduate School of Agricultural Science, Tohoku University, Sendai, Miyagi, 980-8572, Japan

Abstract

Abstract 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.

Publisher

Oxford University Press (OUP)

Subject

Genetics,Animal Science and Zoology,General Medicine,Food Science

Link

http://academic.oup.com/jas/advance-article-pdf/doi/10.1093/jas/skab265/40526353/skab265.pdf

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