Estimation of Floor Space and Prediction of Body Weight Based on Body Measurements of Local HF Cross-breed Cattle of Karnataka

摘要

A study was undertaken to establish different body measurements, floor space requirements and to arrive at prediction equations to determine body weights based on different linear body measurements for local HF cross-breed cows of Karnataka. The result showed that the standing space required for small (250 - 350 Kg), medium (350-450 Kg) and Large (450 - 550 Kg) animal group is 1.51 meters length and 0.95 meters width, 1.63 meters length and 1.06 meters width and 1.69 meters length and 1.15 meters width, respectively. The regression of body weight on Wither height, Hook bone width and Heart girth resulted in development of prediction equations; Y = (21.67 ± 2.287) X - 740.9 ; Y = (34.40 ± 3.143) X - 314.5 and Y = (19.96 ± 1.847) X - 1028, respectively. Further, by considering all the above body weight prediction equations a Multiple Regression Equation was developed; Y = (7.22X|-i-11.47X,+ 6.65X^) - 694.47. Paired t test between the predicted body weight using multiple regression equation and the live body weight showed no significant difference and hence, the equation may be used to estimate the body weight using linear measurements such as Wither height, Hook bone width and Heart girth.