Survival Time in Sheep Affected by Sheep Pox and Enterotoxaemia
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Date
2006
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Abstract
To assess the factors that influence the survival time of sheep affected by sheep pox or
enterotoxaemia, 150 sheep farms affected by sheep pox (108) and enterotoxaemia (42) were selected through
multismge random sampling technique from the purposively selected Dharmapuri district of Tamil Nadu.
Relevant data were collected for the period of two years (2000-01 and 2001-02). The data so collected were used
to fit Cox hazard functional models separately for each disease. One unit increase in breed and veterinary care
indicators in sheep pox affected flock would increase the hazard rate by 10.49 and 15.61%, respectively.
Similarly, one unit increase in age and vaccination would decrease hazard rate by 66.40 and 67.23%,
respectively. The relative risk for the non-provision of veterinary care indicated that the risk of dying was 4.16
times higher for an animal provided with no veterinary care, compared to the one, which received veterinary
care. One unit increase in breed and veterinary care indicators in enterotoxaemia affected flock would increase
the hazard rate by 78.00 and 2.43%, respectively. Similarly, a unit increase in deworming would decrease the
hazard rate by 36.01%. The relative risk for the non-provision of veterinary care indicated that the estimated risk
of dying is 3.02 times higher for an animal provided with no veterinary care, compared to the one, which
received veterinary care.
Description
TNV_JAVA_2006_5(8)647-650
Keywords
Veterinary Science