Study on herd life traits of culled and disposed Kankrej cattle at organized farms

Abstract

An analysis was performed to study the herd life traits of culled and disposed Kankrej cattle at organized farms 
of Gujarat State. Data were collected from different disposal and production registers for the period from 
January 2003 to December 2013 and these were analyzed by using General Linear Model (GLM) procedure in 
the SPSS statistical software (version 20.0). The least squares analysis of disposed Kankrej cows at organized 
farms was performed to study on various life time traits like Age at First Calving, Number of Lactations 
Completed, Total Lactation Days, Life time Milk Yield, Herd Life, Herd Productive Life, Herd Unproductive Life, 
Milk Yield Per Day of Productive Life and Milk Yield Per Day of Herd life. The overall least squares means for 
above mentioned life time traits in Kankrej cows were 1548.12 ± 11.26 days, 3.29 ± 0.10 number, 1012.58 ± 
30.66 days, 6427.01 ± 229.67 kg, 3225.91 ± 49.70 days, 1745.20 ± 86.62 days, 1174.63 ± 23.56 days, 3.73 ± 0.06 
kg and 1.74 ± 0.04 kg, respectively for Kankrej herd of organized farm.