Prediction of 305 days milk yield based on most frequent daily milk yield of a month in Sahiwal cows

Two hundred nineteen records (up to 5^th parity) of 115 Sahiwal cows (calved during 1983 to 2000) having lactation length of more than 100 days and lactation yield of 500 kg maintained at the National Dairy Research Institute, Karnal over a period of 18 years were studied to find out the relationship between 305 days milk yield (305 DMY) with most frequent daily milk yield (MFDMY) and to predict the 305 DMY based on MFDMY of a month in Sahiwal cows. It was found that there was very good association between MFDMY with 305 DMY from 3^rdto 7^th month with highest value in 6^th (0.914), 5^th (0.902), 4^th (0.922), 6^th (0.926) and 5th (0.903) month for 1^st, 2^nd, 3^rd, 4^th and 5^th lactation, respectively. It was concluded that 305 DMY could be predicted on the basis of MFDMY with higher degree of accuracy from 3^rd to 7^th month in Sahiwal cows.