Factors Influencing Mortality of Pigs Under Hot and Humid Conditions of Tamil Nadu, India
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Date
2020-08
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Abstract
Influence of various factors on piglet mortality was studied in an organized
pig farm of Tamil Nadu. Data over 31 years were taken and analyzed under
three age groups using Chi-square test of independence. Genetic group, sex,
period, birth weight, parity of dam and litter size at birth found to have its
effect on pre-weaning mortality. Genetic group, sex, period, birth weight,
season of birth, season of death, weaning weight and weaning age were found
to have its effect on post-weaning mortality. Genetic group, sex, period, birth
weight, season of death, weaning weight and weaning age were found to have
its effect on adult mortality. The results revealed the inclusion of genetic group
and birth weight as selection criteria for the improvement of survivability.
Special care should be taken during winter season for male piglets and sows
in early and late parity. Late weaning could improve survivability.
Description
TNV_IJLR_2020_10(8)82-88
Keywords
Veterinary Science