The concept of heat stress: the cow’s own metabolism is relatively stable at a suitable temperature, and its heat production and heat dissipation are balanced.

Enzyme is an active substance produced by organisms, and is a catalyst for various biochemical reactions in the body.

Directly decompose nutrients and improve feed utilization.

Sheep are ruminants. The rumen is a unique and important digestive organ.

Starting from July 1, 2020, Chinese feed manufacturers have stopped producing commercial feeds containing growth-promoting drug feed additives (except traditional Chinese medicines).

The English name of Bacillus subtilis is Bacillus subtilis (for bacteria, it is usually named according to the double name method of "genus + species").