Indian Journal of Animal Research

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Research Article

Indian Journal of Animal Research, volume 54 issue 6 (june 2020) : 761-767

Genetic and Non-Genetic Factors Affecting Post-Weaning Growth and Morphometric Traits in Assam Hill Goat

L. Sarma, N. Nahardeka, A. Aziz, R.N. Goswami, G. Zaman, A. Das, F. Akhtar
1Department of Animal Genetics and Breeding, College of Veterinary Science, Assam Agricultural University, Khanapara, Guwahati-781 022, Assam, India.
Cite article:- Sarma L., Nahardeka N., Aziz A., Goswami R.N., Zaman G., Das A., Akhtar F. (2019). Genetic and Non-Genetic Factors Affecting Post-Weaning Growth and Morphometric Traits in Assam Hill Goat. Indian Journal of Animal Research. 54(6): 761-767. doi: 10.18805/ijar.B-3806.

ABSTRACT

The present work was conducted to evaluate the performance in respect of post-weaning growth and morphometric traits of Assam Hill goat. Data on 960 animals belonging to 3 populations of Assam Hill goat maintained at three field units viz., Batabari, Nahira and Tetelia under All India Coordinated Research Project on Goat Improvement were utilized. The least-squares means for body weight, height at withers, heart girth and body length were 7.557 ± 0.049 kg, 41.231 ± 0.121 cm, 44.621 ± 0.115 cm and 50.778 ± 0.172 cm at 6 months; 9.934 ± 0.044 kg, 43.902 ± 0.120 cm, 48.890 ± 0.099 cm and 55.552 ± 0.170 cm at 9 months and 12.549 ± 0.046 kg, 46.791 ± 0.112 cm, 52.765 ± 0.090 cm and 58.392 ± 0.207 cm at 12 months of age, respectively.  Location had significant effect on body weight and height at withers at all age groups; on heart girth at 6, 9 and 12 months and on body length at 6 and 12 months of age. Season of birth exerted significant effect on body weight at 9 and 12 months; on height at withers at 12 months and on body length at 6, 9 and 12 months of age. Significant effect of sex was observed on body weight at 9 and 12 months, on height at withers at 6, 9 and 12 months and on heart girth and body length at 9 and 12 months of age. The heritability estimates for body weight and body measurements were moderate indicating scope of selection. The phenotypic and genetic correlation among body weights and body measurements at 6, 9 and 12 months of age were positive in direction and high in magnitude.

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