Studies on effect of climatic parameters on milk quality of holdeo crossbred cattle

Abstract

The study was undertaken to evaluate the effect of climatic parameters on milk quality of Holdeo crossbred cattle. The duration of research work was 52 weeks on available Holdeo crossbred cows at Cattle Cross Breeding Project, Vasantrao Naik Marathwada KrishiVidyapeeth, Parbhani. The readings of temperature and humidity in cattle shed will be recorded twice in a day by using wet and dry bulb thermometer and the data of temperature, humidity, evapotranspiration, sunshine hours, wind velocity of surrounding environment was taken from meteorological observatory at the university campus which is situated in the vicinity of this farm, to investigate the seasonal variations of milk from Holdeo cows during summer, rainy season and winter season. Temperature, humidity and sunshine hours have as positive relationship with milk fat and SNF percentage with decrease in fat percentage and SNF percentage. All the climatic factors considered in the study accounted for 78.40 per cent direct variation on fat percentage and 67.70 per cent direct variation on SNF percentage respectively, as verified by value of coefficient of determination (R2).