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- Title
GENETIC PARAMETERS FOR WOOL PRODUCTION AND QUALITY TRAITS IN MAGRA SHEEP.
- Authors
Singh, H.; Gahlot, G. C.; Narula, H. K.; Pannu, U.; Chopra, A.
- Abstract
Data on 2873 records of Magra sheep maintained at Arid Region Campus of Central Sheep and Wool Research Institute, Bikaner (Rajasthan) distributed over a period of 15 years (2000-2014) were analyzed for estimation of genetic parameters of wool traits. Heritability estimates for greasy fleece yield at first, second and third clip were estimated as 0.68 ± 0.08, 0.81 ± 0.10 and 0.66 ± 0.15, respectively, and for staple length, crimp frequency, fibre diameter, pure, hetro, hairy and medullated fibres were estimated as 0.52 ± 0.09, 0.20 ± 0.06, 0.18 ± 0.05, 0.41 ± 0.07, 0.33 ± 0.07, 0.53 ± 0.08 and 0.44 ± 0.08, respectively. Genetic correlations among different wool production traits ranged from 0.33 to 0.87, and that of wool quality traits ranged from -1.00 to 0.93; and phenotypic correlations ranged from - 0.01 to 0.09 and -1.00 to 0.89, respectively for wool production and wool quality traits. Moderate to high heritability estimates for most of the traits indicated the presence of high genetic variance and low environmental variance. Hence, selection may be done effectively for improvement in these traits.
- Subjects
WOOL; SHEEP; GENETIC correlations; ARID regions; PATH analysis (Statistics); PARAMETER estimation; MULTITRAIT multimethod techniques; HERITABILITY
- Publication
Veterinary Practitioner, 2019, Vol 20, Issue 2, p253
- ISSN
0972-4036
- Publication type
Article