Factors Influencing Mortality of Pigs Under Hot and Humid Conditions of Tamil Nadu, India**

Anjaly Krishnan; G. Senthil Kumar; R. Venkataramanan; D. Balasubramanyam; P. Thirunavukkarasu; P. Devendran

doi:10.5455/ijlr.20200604115140

Authors

Anjaly Krishnan PG Scholar, Tamil Nadu Veterinary and Animal Sciences University, Department of Animal Husbandry Statistics and Computer Applications, Faculty of Basic Sciences, Madras Veterinary College Campus, Chennai INDIA
G. Senthil Kumar Assistant Professor, Department of Animal Husbandry Economics, Madras Veterinary College, Chennai, Tamil Nadu, INDIA
R. Venkataramanan Associate Professor, Livestock Farm Complex, TANUVAS, Chennai, Tamil Nadu, INDIA
D. Balasubramanyam Professor and Head, Post Graduate Research Institute in Animal Sciences, Kattupakkam, Tamil Nadu, INDIA
P. Thirunavukkarasu Assistant Professor, Department of Animal Husbandry Statistics and Computer Applications, Madras Veterinary College, Chennai, Tamil Nadu, INDIA
P. Devendran Co-ordinator and Professor, CECONDS, TANUVAS, Chennai, Tamil Nadu, INDIA

DOI:

https://doi.org/10.5455/ijlr.20200604115140

Keywords:

Factors, Mortality, Survivability, Pig, Weaning

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.