Vol. 11, Special Issue 10 (2022)

Badri is dual purpose indigenous breed of Uttarakhand. The breed is famous for its adaptability to hilly terrains, disease resistance ability and medicinal properties of milk and urine. This study aimed to investigate the influence of seasons on milk parameters of indigenous of Badri cows. Eleven healthy lactating Badri cows were selected randomly from Instructional Dairy Farm of Pantnagar. Meteorological variables (temperature, relative humidity) were recorded and temperature humidity index (THI) was calculated during monsoon, winter and spring seasons by standard formula established by NRC (1971). Milk composition was analyzed using automatic milk analyzer (Ultra Scan Milch Analyzer). Meteorological variables recorded during study period gave higher THI during monsoon (80.62) than winter (58.63) and spring (64.05). The results of the study showed that fat, protein, total solid and SNF were significantly higher during winter as compared to values obtained in monsoon. However, there was non-significant difference observed in lactose, specific gravity, freezing point depression and pH of milk. Thus, it is concluded that higher THI in monsoon season induces more stress on animals that produces adverse effects on milk production and composition.