Effect of Parity, Lactation Length and Season of Calving on Milk Production in Nili Ravi Buffaloes Maintained at Livestock Farm, GADVASU, Ludhiana

Background: Nili Ravi buffalo breed is one of the best milk-producing buffalo breeds with excellent potential for milk production. In the present investigation, we studied the effect of non-genetic factors on milk production traits in Nili Ravi buffalo. Methods: In the present study, we analyzed the factors affecting milk production traits in 279 standardized lactation records in Nili Ravi buffaloes maintained at the Directorate of Livestock Farm, GADVASU, Ludhiana, from 2009 to 2020. The effect of lactation length (LL), parity and season of calving (SOC) on milk production were analyzed using GLM (General Linear Model) IBM SPSS Statistics 26 version software. Result: The overall 305 days corrected milk yield of Nili Ravi buffalo was 2247.09±26.51 kg with an average lactation length of 274.72±62.78 days. The effect of SOC and parity number was found to be significant (P≤0.05) on the 305 days of corrected milk yield, whereas the effect of lactation length was found significant on lactation milk yield (P≤0.01). It is concluded that the lactation length, parity and calving season significantly affect the milk production trait in Nili Ravi buffalo.