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ENVIRONMENTAL AND GENETIC INFLUENCES ON PRE-WEANING DAILY WEIGHT GAIN IN TEDDY GOAT KIDS
Asad Ullah Hyder, Pervez Akhtar and Omer Usman Haider

 Department of Animal Breeding and Genetics, Facuity of Veterinary Science, University of Agriculture, Faisalabad, Pakistan

Abstract   

    Records belonging to 1248 Teddy goats kept at the Livestock Production Research Institute, Bahadurnagar, (Okara), Pakistan were analyzed to identify genetic and environmental factors affecting pre-weaning average daily weight gain. Sex of kid, season and year of kidding affected average daily weight gain significantly (P<0.01). Male kids gained at a faster rate (111.00 ± 6.01 g/day) than female kids (106.00 ± 6.06 g per day). The kids born in summer gained 108.90 + 1.3 g per day, which. was lower (P<0.01 ) than winter born kids ( 115.4 ± 1.4 9 per day). Different years of birth had shown gradual decrease in pre-weaning average daily gains. The effects of. parity of dam and birth type were found to be non-significant. Habitability estimate for daily weight gain was 0.12 ± 0.06. The phenotypic and genetic trends were negative.

Key words: Pre-weaning average daily gains, goats, year, season, sex, parity, birth type, genetic trend
 
   

ISSN 0253-8318 (Print)
ISSN 2074-7764 (Online)



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