+ Site Statistics
References:
54,258,434
Abstracts:
29,560,870
PMIDs:
28,072,757
+ Search Articles
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ PDF Full Text
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Translate
+ Recently Requested

Estimating non-genetic and genetic parameters of pre-weaning growth traits in Raini Cashmere goat



Estimating non-genetic and genetic parameters of pre-weaning growth traits in Raini Cashmere goat



Tropical Animal Health and Production 44(4): 811-817



Data and pedigree information used in the present study were 3,022 records of kids obtained from the breeding station of Raini goat. The studied traits were birth weight (BW), weaning weight (WW), average daily gain from birth to weaning (ADG) and Kleiber ratio at weaning (KR). The model included the fixed effects of sex of kid, type of birth, age of dam, year of birth, month of birth, and age of kid (days) as covariate that had significant effects, and random effects direct additive genetic, maternal additive genetic, maternal permanent environmental effects and residual. (Co) variance components were estimated using univariate and multivariate analysis by WOMBAT software applying four animal models including and ignoring maternal effects. Likelihood ratio test used to determine the most appropriate models. Heritability (h(a)(2)) estimates for BW, WW, ADG, and KR according to suitable model were 0.12 ± 0.05, 0.08 ± 0.06, 0.10 ± 0.06, and 0.06 ± 0.05, respectively. Estimates of the proportion of maternal permanent environmental effect to phenotypic variance (c(2)) were 0.17 ± 0.03, 0.07 ± 0.03, and 0.07 ± 0.03 for BW, WW, and ADG, respectively. Genetic correlations among traits were positive and ranged from 0.53 (BW-ADG) to 1.00 (WW-ADG, WW-KR, and ADG-KR). The maternal permanent environmental correlations between BW-WW, BW-ADG, and WW-ADG were 0.54, 0.48, and 0.99, respectively. Results indicated that maternal effects, especially maternal permanent environmental effects are an important source of variation in pre-weaning growth trait and ignoring those in the model redound incorrect genetic evaluation of kids.

(PDF emailed within 0-6 h: $19.90)

Accession: 036201068

Download citation: RISBibTeXText

PMID: 21901301

DOI: 10.1007/s11250-011-9971-5


Related references

Comparison of different models for estimating genetic parameters of early growth traits in cashmere goat. Yi Chuan Xue Bao 31(6): 578-581, 2004

Estimates of genetic parameters and genetic trends for production traits of Inner Mongolian White Cashmere Goat. Asian Australasian Journal of Animal Sciences 19(1): 13-18, 2006

The estimation of genetic parameters for growth curve traits in Raeini Cashmere goat described by Gompertz model. Small Ruminant Research 165: 66-70, 2018

Genetics and non-genetics parameters of body weight for post-weaning traits in Raini Cashmere goats. Tropical Animal Health and Production 45(7): 1519-1524, 2014

Influence of maternal genetic effect on genetic parameter estimates of production traits of cashmere goat. Yi Chuan 28(9): 1083-1086, 2006

Estimates of genetic parameters and genetic trends for pre-weaning growth traits in Sardi sheep. Small Ruminant Research 146: 61-68, 2017

Some genetic and non-genetic parameters for pre-weaning growth traits in Angora goats. (Research note). Dirasat Agricultural Sciences 24(2): 182-186, 1997

Genetic evaluation of growth in Raini goat using random regression models. Livestock Science 145(1-3): 1-6, 2012

Estimates of genetic parameters and genetic changes for fleece traits in Inner Mongolia cashmere goats. Small Ruminant Research 117(1): 41-46, 2014

Estimates of genetic parameters for pre-weaning and post-weaning growth traits of Chios lambs. Animal Production 30(2): 271-276, 1980

Genetic control of resistance to gastro-intestinal parasites in crossbred cashmere-producing goats: responses to selection, genetic parameters and relationships with production traits. Animal Science 74: 199-208, 2002

Genetic parameter estimates of follicle traits in Liaoning Cashmere goat. Journal of Jilin Agricultural University 27(3): 323-327, 2005

Skin follicle characteristics of Raini cashmere goat. Journal of the Faculty of Veterinary Medicine, University of Tehran 55(1): ar42-ar49, 2000

Estimation of genetic parameters on pre-weaning growth traits in Hanwoo. Journal of Animal Science and Technology 49(2): 171-176, 2007

Genetic and phenotypic parameters for early growth traits in Emirati goat. Small Ruminant Research 45(3): 217-223, 2002