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ISSN : 1225-2964(Print)
ISSN : 2287-3317(Online)
Annals of Animal Resource Sciences Vol.26 No.1 pp.1-5
DOI : http://dx.doi.org/10.12718/AARS.2015.26.1.1

Estimation of Genetic Parameters for the Litter Size and Birth Weight in Korean Black Goats

Myung-Jick Kim*, Sang-Woo Kim, Jae-Hwan Kim, Mi-Jung Byeon, Chung-Sil So,Young-Moo Jo
National Institute of Animal Science, R.D.A., Korea
*Corresponding author: Myung-Jick Kim, National Institute of Animal Science, R.D.A., Namwon 590-832, Korea. Tel: +82-63-620-3530, E-mail: kimmjk@korea.kr
06 November 2014 08 May 2015 11 May 2015)

Abstract

The objective of this study was to estimate the genetic and phenotypic parameters of litter size and birth
weight traits in three Korean black goat lines (Dangjin, Jangsoo and Tongyung) raised at the Animal Genetic Resources Station (AGRS) of the National Institute of Animal Science (NIAS). A total of 1,861 records collected from 2001 to 2013 were used for analyses with single trait animal models. The average litter size of Dangjin line was the largest (1.72 kids) and the average birth weight of Jangsoo line was the heaviest (1.88kg) among the three lines. Heritability estimates of litter size and birth weight were 0.07 and 0.26, respectively. The average breeding value of litter size and that of birth weight of Jangsoo line were the greatest of all three lines, 0.15 heads and 1.88 kg, respectively. The correlation coefficients between phenotypic values and breeding values of litter size in the lines of Dangjin, Jangsoo and Tongyung were 0.054, -0.031 and 0.131, respectively. The correlation coefficients between phenotypic values and breeding values of birth weight in the lines of Dangjin, Jangsoo and Tongyung were 0.570, 0.454 and 0.521, respectively. The phenotypic correlation and breeding value correlation between litter size and birth weight were 0.031 and 0.003 in Dangjin line, -0.038 and 0.094 in Jangsoo line, and 0.109 and 0.121 in Tongyung line, respectively. These data suggest that the genetic parameters estimated for litter size and birth weight in this study could be used to improve genetic potentials of Korean black goats in industrial level.

한국 재래흑염소의 산자수와 생시체중에 대한 유전모수 추정

김명직*,김상우,김재환,변미정,소충실,조영무
국립축산과학원

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