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Calf diarrhea is one of the main diseases affecting the growth and development of calves. Factors that cause diarrhea in calves include bacterial, viral, parasitic, and non-infectious factors. Bacterial diarrhea is one of the common causes of diarrhea in calves, and its mechanism is mainly due to the proliferation of bacteria after entering the intestine, destroying the balance of intestinal flora, and then causing serious damage to the intestinal mucosal barrier of calves. Chinese herbal medicine has the effect of regulating the intestinal flora, enhancing immune function, and reducing the diarrhea rate of calves. This article reviews the etiology of calf diarrhea and the research progress of Chinese herbal medicine treatment, so as to provide a reference for the clinical treatment of calf diarrhea. [ABSTRACT FROM AUTHOR]

The winter cold stress of dairy cows has become one of the important problems affecting the healthy development of animal husbandry. Cold stress will lead to the decrease of feed intake, milk yield and reproductive performance of dairy cows, and seriously harm the economic benefits of dairy farmers. Inner Mongolia is located in a cold region, where animals are in a cold environment for a long time, and the impact of cold stress is more common. In order to more specifically understand the effects of cold stress on the production performance of dairy cows, the paper reviews the effects of cold stress on the behavior, milk yield, neuroendocrine, biochemical indexes, immune, antioxidant function, intestinal flora and other aspects of dairy cows, and summarizes the effective prevention and control measures to prevent cold stress of dairy cows, to provide reference for further research on the prevention and relief of cold stress in dairy cows. [ABSTRACT FROM AUTHOR]