Evaluation of Tank Milk Composition, Physicochemical Properties, and Nutrition Level by Fat/Protein Ratio in Brown Swiss Breed Cattle

Abstract

This study was carried out to investigate the composition, physicochemical properties and fat/protein ratio of milk of Brown cattle in terms of some nutritional diseases. For this purpose, tank milk of 170 farms raising Brown breed cattle in Merkez, Karakoyunlu, Aral & imath;k and Tuzluca districts of Igdir province were examined. Statistical differences were found in solid matter (p<0.01), freezing point (p<0.01), protein (p<0.05), and pH (p<0.05) values among the milk compositions examined on a district and season basis. By examining the fat/protein ratio for animal nutrition levels, it was determined that the herds were exposed to 25.7% to Acidosis, 62.4% to Normal, and 11.9% to Ketosis. Based on the fat/protein ratio of the milk, 1/3 of the cows are exposed to Acidosis+Ketosis according to the district and season, which can be attributed to the imbalance of the ration content. This situation also becomes important in feed change. For this reason, the fat/protein ratio should be checked when the cows are grazed on pasture after the dry feeding period or when transitioning from the pasture period to the dry feeding period. Monitoring the milk fat/protein ratio of cows in milk producing enterprises over time is informative for ketosis and acidosis diseases and it is recommended to measure it over time for animals.