Estimation of inbreeding coefficient and its effects on birth weight and kid survival in Markhoz goats

Volume 16 , Issue 1 , October 2014 , Pages 189-196

Authors

¹ Department of Animal Science, College of Agriculture, University of Kurdistan, Sanandaj

Pedigree data of 4186 Markhoz goats which collected from 1993-2012 by Markhoz

goat Performance Testing Station in Sanandaj, Kurdistan province of Iran, were analyzed

for estimation of inbreeding coefficient and its effects on birth weight (BW) and kid

survival (KS). The results showed 58.07% of animals were inbred. The means of inbreeding

coefficient for whole and inbred populations were 3.03 and 5.21%, respectively. The trend

of inbreeding coefficient was 0.236±0.044 and significant (P<0.05). Maximum of inbreeding

coefficient was 31.25%. Effects of inbreeding on BW and KS were estimated by restricted

maximum likelihood (REML) method under 12 animal models. The most appropriate

model for each trait was determined by Akaike’s Information Criterion (AIC) test. The

regression coefficients of BW and KS on inbreeding coefficient were -0.50±1.57 gm and -

0.17±0.10 percent, respectively. The results obtained in the present study showed

inbreeding had not significant effects on BW and KS (P>0.05).

Statistics