Factors affecting post-weaning average daily gain and Kleiber ratios in Malpura sheep
230 / 0
Keywords:
Average daily gain, Environmental factors, Kleiber ratio, Malpura sheepAbstract
The objective of this study was to determine effect of environmental factors on estimates of post-weaning growth traits. Study suggested that as the age advances growth rate and feed conversion efficiency declines in Malpura sheep. Hence, for higher economic gain selection should be made at earlier age, preferably at 6 month. Rearing male lambs can be more profitable as they achieved higher growth and better feed conversion efficiency. For unbiased estimates of breeding values, correction factors for significant non-genetic factors must be incorporated.
Downloads
References
Abegaz S, van Wyk, J B and Olivier J J. 2005. Model comparisons and genetic and environmental parameter estimates of growth and the Kleiber ratio in Horro sheep. South African Journal of Animal Science 35: 30–40.
Baneh H and Hafezian S. 2009. Effects of environmental factors on growth traits in Ghezel sheep. African Journal of Biotechnology 8 (12): 2903–07.
Chopra A, Prince L L L, Gowane G R and Arora A L. 2010. Influence of genetic and non-genetic factors on growth profile of Bharat Merino sheep in semi-arid region of Rajasthan. Indian Journal of Animal Sciences 80 (4): 376–78.
Eskandarinasab M P, Ghafouri-Kesbi F and Abbasi M A. 2010. Different models for evaluation of growth traits and Kleiber ratio in an experimental flock of Iranian fat-tailed Afshari sheep. Journal of Animal Breeding and Genetics 127: 26–33.
Jafaroghli M, Rashidi A, Mokhtari M S and Shadparvar AA. 2010. (Co)Variance components and genetic parameter estimates for growth traits in Moghani sheep. Small Ruminant Research 91 (2): 170–77.
Karim S A, Porwal K, Kumar S and Singh V K. 2007. Carcass traits of Kheri lambs maintained on different system of feeding management. Meat Science 76: 395–401.
Kesbi F G, Abbasi M A, Afraz F, Babaei M, Baneh H and Arpanahi R A. 2011. Genetic analysis of growth rate and Kleiber ratio in Zandi sheep. Tropical Animal Health and Production 43 (6): 1153.
Eskandarinasab M, Ghafouri-Kesbi F and Abbasi M A. 2011. Different models for evaluation of growth traits and Kleiber ratio in an experimental flock of Iranian fat-tailed Afshari sheep. Journal of Animal Breeding and Genetics 127: 26–33.
Mohammadi K, Rashidi A, Mokhtari M S and Beigi Nassiri M T. 2011. The estimation of (co)variance components for growth traits and Kleiber ratios in Zandi sheep. Small Ruminant Research 99 (2): 116–21.
Mohammadi Y, Rashidi A, Mokhtari M and Esmailizadeh A K. 2010 Quantitative genetic analysis of growth traits and Kleiber ratios in Sanjabi sheep. Small Ruminant Research 93 (2): 88– 93.
Prince L L L, Chopra A, Gowane G R and Arora A L. 2010. Factors affecting growth in Avikalin sheep. Indian Veterinary Journal 87 (11): 1104–08.
SPSS 2005. SPSS for windows, Brief Guide,Version 14.0 SPSS inc. Chicago, IL.
Submitted
Published
Issue
Section
License
Copyright (c) 2014 The Indian Journal of Animal Sciences

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
The copyright of the articles published in The Indian Journal of Animal Sciences is vested with the Indian Council of Agricultural Research, which reserves the right to enter into any agreement with any organization in India or abroad, for reprography, photocopying, storage and dissemination of information. The Council has no objection to using the material, provided the information is not being utilized for commercial purposes and wherever the information is being used, proper credit is given to ICAR.