Measure of Central Tendency and Dispersion of Test Day Milk Yield in Murrah Buffaloes

This study utilized the information of 13,991, 10,890 and 7,001 weekly test day milk yield (WTDMY) and 3,518, 2,523 and 1,943 monthly test day milk yield (MTDMY) records of 342, 255 and 192 Murrah buffaloes calved and completed first three lactations during the period from 1990 to 2004 in the herd. The information used in the present study was collected from the history sheets and daily milk yield registers of Murrah buffaloes maintained at the Dairy Cattle Breeding Division and Livestock Farm, National Dairy Research Institute, Karnal (Haryana). The mean WTDMY varied from 6.61 ± 0.04 kg in first lactation to 8.53 ± 0.07 kg in third lactation. The mean MTDMY varied from 6.85 ± 0.02 kg in first lactation to 8.68 ± 0.04 kg in third lactation.