A Study On Milk Production And Reproductive Performance Of Jersey Cattle Breed At Wolaita Sodo State Dairy Farm Southern Ethiopia

This study was conducted in Wolaita Sodo State Dairy Farm from October 2007 to April 2008 to determine the milk yield and reproductive performance and herd life of Jersey cattle and also potential factors affecting these parameters. The Jersey cattle in the study farm were mainly kept on pasture land and with some supplementary feeds. The data recorded and kept by the farm from 1987 to 2007 were used for the study. Data analysis was performed using descriptive statistics and GLM of SPSS (release 11.05, 2002). The factors considered in the model were year of birth, calving and service; season of birth, calving and service; parity number of dam; source of cattle and sex of calves. The results of this study revealed that the overall mean values of lactation milk yield, lactation length and life time milk yield were 1691.59kg (SE=27.55), 318.42 days (SE=3.92) and 5565.19kg (SE=220.03), respectively. Lactation milk yield and lactation length (p

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