Before discussing whether cows need hormones to produce milk, we need to understand the physiological mechanisms of milk production in dairy cows. Cow milk production is a natural physiological response that usually begins to produce milk after giving birth to a calf. This process is regulated by hormones in the body and does not require the intervention of external hormones.
First of all, we need to understand that milk production is part of the physiological system of dairy cows. Under normal circumstances, cows begin to secrete milk after giving birth to calves. This process is regulated by hormones in the cow's body, especially prolactin and oxytocin. These hormones cause the mammary glands to produce milk to meet the growth needs of the calf.
Secondly, for commercial milk production, in order to increase yield and efficiency, some farms may use some hormones to stimulate cows to produce more milk. These hormones are usually steroids or protein hormones, such as growth-promoting hormone (such as recombinant bovine growth hormone, RBGH) or prolactin. However, the use of these hormones is internationally controversial because they can have negative effects on the environment and animal welfare.
It is important to note that many countries have banned or restricted the use of these hormones to increase milk production. At the same time, many consumer organizations and health experts have also expressed concern about the use of hormones in commercial milk production, arguing that it may pose potential risks to human health.
To sum up, cows do not need hormones to produce milk under normal circumstances. While some hormones may be used in commercial milk production to stimulate milk production, their use does have controversy and potential risks. Therefore, we should pay attention to the sustainability of milk production and animal welfare issues to ensure that our food** is safe and reliable.