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.

References

BAHS (2014). Government of India ministry of agriculture Department of animal husbandry, Dairying and fisheries.

Bhave KG, Sawane MP, Wagh PT, Zunjarrao KA, Pawar VD and Doiphode AY (2017). Genotyping of Osmanabadi goat at FecX and FecB LOCI. Ruminant Science6(2):207-214.

Chopra A, Prince LLL, Gowane GR and Arora AL (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):376-378.

Dixit SP, Dhillon JS and Singh G (2001). Genetic and non-genetic parameter estimates for growth traits of Bharat Merino lambs. Small Ruminant Research 42:101-104.

Gohil G (2010). Genetic evaluation of growth and reproduction of Marwari sheep. MVSc Thesis submitted to RAU, Bikaner.

Gowane GR, Prakash V, Chopra A and Prince LLL (2013). Population structure and effect of inbreeding on lamb growth in Bharat Merino sheep. Small Ruminant Research 114:72-79.

Harvey HR (1990). User’s guide for LSMLMW PC-É Version mixed model Least Squares and Maximum Likelihood computer programme. LOWA State University, USA.

Kannojia K (2015). Selection strategies for genetic improvement in Marwari sheep. MVSc Thesis submitted to RAJUVAS, Bikaner.

Karim SA and Shakyawar DB (2011). National Seminar cum Workshop on Recent R&D Initiatives and Development Schemes of Wool and Woollens 28th May 2011, Mumbai

Kramer  CY (1957). Extension of multiple range tests to group correlated adjusted means. Biometrics 13(1):13-18.

Naqvi SMK (2013). Present status of carpet wool production in India viz a viz world. Interactive meeting on Prospects in improving production, marketing and value addition of carpet wool. December 31, 2013. Arid Region Campus, CSWRI, Bikaner Page 1-7.

Parihar K (2012). Studies on genetic and phenotypic trends of growth and wool traits in Magra sheep. MVSc Thesis submitted to RAJUVAS, Bikaner.

Prince LLL, Kumar S, Mishra AK and Arora AL (2008). Growth performance of Chokla sheep under semi-arid condition of Rajasthan. Indian Journal of Small Ruminants 85(1):41-43.

Sharma PC, Gaur Mitesh, Arora Sunil, Singh Surendra, Kumar Vishnu, Nehra KS and Nagda RK  (2015). Influence of non-genetic factors on growth performance of Sonadi sheep in farmer’s flock. Ruminant Science 4(2):185-187.

Sharma PC, Sharma Deepak, Govardhan, Saraswat CS, Kumar Sunil and Nagda RK (2016a).  Influence of non- genetic factors on greasy fleece yield of Sonadi sheep Ruminant Science 5(1):71-72.

Sharma PC, Gupta Barkha, Joshi Monika, Preet Tarun, Pareek S, Rathore NS and Nagda RK (2016b). Influence of genetic and non-genetic factors on growth performance of Sonadi sheep. Ruminant Science 5(2):165-167.

Singh H, Pannu U, Narula HK, Chopra A and Murdia CK (2013). Influence of Genetic and non-genetic factors on pre-weaning growth traits in Marwari sheep. Indian Journal of Small Ruminants 19(2):142-145.

Singh H, Pannu U, Narula HK, Chopra A, Naharwara V and Bhakar SK (2016). Estimates of (co) variate components and genetic parameters of growth traits in Marwari sheep. Journal of Applied Animal Research 44(1):27-35.

Tomar AKS, Mehta BS and Singh G (2000). Genetic and non-genetic factors affecting growth in Bharat Merino Sheep. Indian Journal Animal Science 70(6):647-648.