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Clean Fleece Weight under the Influence of Genetic and Non-Genetic Factors in Indigenous and Crossbred Sheep

Thiagarajan Ramasamy Jayashankar M. R.
Vol 2(3), 116-119

A study was conducted to determine the effect of breed group, age, period of birth, season of shearing and sex on clean fleece weight. Wool samples were collected from Bannur (n=68) and UAS-improved strain (n=120) maintained at UAS campus, Bangalore. Wool samples(n =608) were also collected from Bannur(n=69), Rambouillet X Deccani (n=56), Corriedale X Bannur(n=76), Corriedale X Deccani (n= 122) and Deccani(n=97) before shearing at the left side region at Large Scale Sheep Breeding and Training Centre, Kudapura, Chellakere of Chiradurga district of Karnataka. The Least squares analysis of variance technique was adapted to detect the significant sources of non-genetic variation.The overall least square mean of clean fleece weight was 231.36 ± 3.44 c.m. The comparison of means among genetic groups revealed that the highest clean fleece weight was recorded in UAS- Improved strain (394.06 ± 8.33g) followed by Rambouillet X Deccani (283.44 ± 11.14 g), Corriedale X Deccani (245.49 ± 8.98g), Bannur (165.46 ± 4.17g), Deccani (158.20 ± 7.12g), and Corriedale X Bannur (133.51 ± 9.16g). Significant differences in clean fleece weight were noticed with respect to breed, period of birth, season of shearing and sex. Age did not have a significant effect on clean fleece weight.

Keywords : Clean fleece weight Genetic and non genetic factors Least Square Analysis Deccani Bannur Corriedale and Rambouillet

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