FACTORS AFFECTING PRE-WEANING BODY WEIGHTS AND GROWTH RATES IN CROSSBRED PIGS*

Article Id: ARCC1233 | Page : 157 - 167
Citation :- FACTORS AFFECTING PRE-WEANING BODY WEIGHTS AND GROWTH RATES IN CROSSBRED PIGS*.Indian Journal Of Animal Research.2010.(44):157 - 167
J. Sai Prasanna, M. Gnana Prakash, B. Ramesh Gupta M. Mahender and D. Srinivasa Rao
Address : Sri Venkateswara Veterinary University, Hyderabad - 500 03, India

Abstract

Data pertaining to the pre-weaning body weights and average daily gains of 2909 piglets
belonging to two crossbred (50% and 75% LWY-Desi) genetic groups were analyzed. Genetic
group, period and season of birth and LSB in general, affected all the body weights highly
significantly. The overall least-squares mean body weights were 1.11 ± 0.01, 2.16 ± 0.01, 3.20
± 0.02, 4.32 ± 0.02, 5.44 ± 0.03, 6.52 ± 0.04, 7.65 ± 0.04, 8.79 ± 0.05 and 10.13 ± 0.06 kg
at birth, 1, 2, 3, 4, 5, 6, 7 and 8 weeks age, respectively. The overall least squares mean ADGs
during 0 and 1, 1 and 2, 2 and 3, 3 and 4, 4 and 5, 5 and 6, 6 and 7, 7 and 8 and birth and 8
weeks were 0.149 ± 0.002, 0.148 ± 0.002, 0.158 ± 0.002, 0.161 ± 0.002, 0.154 ± 0.002,
0.161 ± 0.002, 0.165 ± 0.003, 0.191 ± 0.003 and 0.161 ± 0.001 kg, respectively. Genetic and
phenotypic correlations among body weights were mostly positive and medium to high.
Correlations among average daily gains were very low and without any trend

Keywords

Average daily gain Body weight Crossbred pigs

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