PHYSIOLOGICAL STUDY ON PRODUCTIVE AND REPRODUCTIVE PERFORMANCE IN KANGAYAM CATTLE
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Date
2021
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TANUVAS, CHENNAI
Abstract
The present study was conducted in Kangayam breed of cattle at different age group to assess growth rate, physiological and haematobiochemical parameters, reproductive hormones concentration, milk composition and thermotolerance ability. 66 animals of different age were selected and divided into 6 groups of 10 animals each. Growth rate of calves from 1 to 12 months of age was estimated using Schaeffer’s formula and compared with actual weight. There was about 2-4% less body weight obtained when formula was used.
Among physiological parameters, respiratory rate in early months was significantly higher (P<0.05) in both males and females and later it was reduced as the age increased. However no changes were observed in pulse rate, rectal temperature and skin temperature between different age groups.