in order to examine the effect of using rumen protected methionine (mepron, evonik industries, hanau, germany) on productive and reproductive performance under field condition, 195 holstein cows were used in a unbalanced completely randomized design and 2 groups. experimental treatments consisted of: 1) control group with 110 holstein dairy cows (71±51 dim and 47.5±12 milk yield) and without me...

the present study was conducted with a view to know the productive and reproductive performance of jamunapari, black bengal and crossbred goats in chittagong district during the period of may to december 2012. the data on productive and reproductive traits were collected from 324 goats as a whole. in the present study, the birth weight of jamunapari goats was higher than other crosses. the adul...