The occurrence of alcohol-positive milk in dairy farms is a common and complex issue, which directly affects the quality of raw milk and economic benefits. The core reason for the appearance of alcohol-positive milk is the disruption of the stability of milk proteins in fresh milk, which leads to the denaturation and precipitation of casein under the dehydration effect of alcohol. This article classifies and elaborates on the main causes of the appearance of alcohol-positive milk.

Diarrhea is a common disease that poses a threat to the health of calves. The causes of diarrhea are complex and diverse. It can lead to a decline in the immunity of calves, trigger infections of other diseases, and even cause death. At the same time, it affects the growth and development of calves, resulting in stunted growth and causing significant economic losses to the dairy farm.

Ruminant animals generally have four stomachs, namely the rumen, reticulum, omasum and abomasum. Each stomach chamber has distinct functions but works closely together to form a complete "pre-processing - fermentation - filtration - digestion" production line.

Ruminating is a unique behavior specific to ruminant animals. In order to quickly evade predators and survive, ruminant animals have developed the habit of quickly feeding and then rumination during the long process of evolution. They swallow the roots, stems, and other food without thorough chewing and choose a safe and comfortable environment for rumination after feeding.

The key work of winter pasture management is to prevent or mitigate the impact of cold stress on the performance of dairy cows, including the temperature control of all aspects of the pasture, pasture management measures, dietary nutrition control, and prevention of frost damage.

Mr. Song, a Beijing Yahe ruminant nutrition expert, explained the delivery and post-natal care of calves (picture description)