EFFECTS OF ENVIRONMENTAL FACTORS ON PRE-WEANING GROWTH TRAITS IN CHOKLA SHEEP OF RAJASTHAN

EFFECTS OF ENVIRONMENTAL FACTORS ON PRE-WEANING GROWTH TRAITS IN CHOKLA SHEEP OF RAJASTHAN

Title: EFFECTS OF ENVIRONMENTAL FACTORS ON PRE-WEANING GROWTH TRAITS IN CHOKLA SHEEP OF RAJASTHAN

Authors: Vinita Kumari, A Chopra, U Pannu, LLL Prince, AK Patel and HK Narula

Source: Ruminant Science (2018)-7(2):203-206.

Cite this reference as: Kumari Vinita, Chopra A, Pannu U, Prince LLL, Patel AK and Narula HK (2018). Effects of environmental factors on pre-weaning growth traits in Chokla sheep of Rajasthan. Ruminant Science 7(2):203-206.

Abstract

Data on 4109  Chokla animals maintained  at  Central  Sheep  and  Wool  Research  Institute  (CSWRI), Avikanagar,  Rajasthan were collected to assess the effect of non-genetic factors on preweaning growth performance. The  least-squares  means  for  body  weight  at  birth  and  3  months  of ages  and  average  daily  gain  during  birth  to  3  months  of  ages  were  2.81±0.010 kg, 12.90±0.062 kg and 111.88±0.657 g/day, respectively. The  least-squares  analysis  of  variance revealed highly  significant  (P<0.01)  effect  of  sex  of  lamb, period  and  season  of  birth  on  all  the  pre-weaning  traits. The fixed effect of age of dam at lambing was highly significant on all the pre-weaning traits except on average daily gain from birth to 3 months of ages.  Effect  of dam’s  weight  at  lambing had  highly  significant  source  of  variation  for  all  the  pre-weaning  traits. Thus, there is need of giving proper attention to the significant factors to achieve optimum productivity.

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