A Study on Some Productive Parameters of Local X Friesian Upgraded Dairy Cows
M. A. Islam
The study was conducted at two dairy farms namely, Government Dairy Farm, Faridpur and Cntral Cattle Breeding Station, Savar, Dhaka to investigate the effect of milk yield, lactation length and disease incidence on Local X Friesian upgraded dairy cows. From the study, it was reveled that the average milk production per lactation per cow was 1820.75, 1861.00, 1871.00 and 1890 liters for first, second, third and fourth lactation, respectively. There was an increasing tendency in milk yield from first lactation to fourth lactation. Average lactation length of respective cows were 335.50?29.26, 333.12?29.97, 325.87?19.91 and 323.87?13.75 days for first, second, third and fourth lactation, respectively. In case of disease incidence the experimental cows were infected by Foot and Mouth Disease, Black Quater and ephemeral fever. In conclusion, it can be said that Local X Friesian cows are reared successfully allover Bangladesh.