EFFECT OF SEASON OF BIRTH AND ENERGY LEVELS OF FEED ON PRODUCTION PERFORMANCE OF PIGS
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Date
1992
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COLLEGE OF VETERINARY AND ANIMAL SCIENCES-MANNUTHY,THRISSUR
Abstract
A detailed investigation was carried out to study the
effect of season and level of energy intake on grov/th rate,
feed efficiency, carcass quality and economics of production
of fattening pigs reared upto a slaughter weight of 90 kg.
Thirty two weaner pigs of large White Yorkshire breed
belonging to the University Pig Breeding Farm, Mannuthy born
in two seasons were distributed under two dietary
treatments. All animals were slaughtered on attaining the
target weight of 90 kg.
Animals born in season II were superior to animals born
in season I in all the parameters like growth rate, feed
j_0f]^cy, average daily gain and carcass characteristics.
The energy level in the ration had a moderate influence
on the performance of grower pigs. Animals on NRG level of
feed were found to be better than animals on 15 per cent
less than NRG levels in all the traits under study except
for fat characteristics,.
The cost of production per kg pork was found to be less
(Rs 18.72) in NRC group than 15 per cent less than NRC group
(Rs 22.99) due to higher feed efficiency and better growth
rate.
The overall results obtained during the course of
present study is that the unit cost of production is less
for animals maintained on NRC level of ration. Animals born
in season II were found to be better than animals born in
season I in production performances.
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