A study on the productive and reproductive phenotypes of crossbred dairy cattle on commercial farms in Patiya upazilla, Chattogram

Abstract

The study aimed to determine how well Holstein-Friesian (HF), Jersey, and Mundi crossbred cows performed in terms of production and reproduction on a commercial farm. Seven dairy farms in Patiya upazilla provided the data, and 107 cows were used as the study population. To gather data on the reproductive and productive performance of cows, pre-tested structured questionnaires were used. The result of body weight in different farms shows that body weight measurements are comparatively accurate on Maa Dairy Farm than they are on Kutub Dairy Farm, which has a similar percentage of crossbred cows but a higher standard error. With crossbreds of both the HF and Jersey breeds, Kuddus Dairy Farm's standard error shows significant measurement variability and a moderate mean body weight. For daily milk yield (DMY) Maa Dairy Farm has the highest milk yield with the mean value of 21.13 Liter. DMY was the highest in case of HF crossbreds. Lactation number was comparatively higher in Kazi Mustafa Dairy Farm. For reproductive phenotypes, days open and service per conception are measured on the basis of farm and breed composition. Average days open was found as 80 days and average service per conception was between 2.7 to 3.8. From overall data evaluation, it is seen that for improving the productivity of a farm, a good farming system with adequate management approaches is needed.