What is the effect of supplement BST in cows?

Supplementing bovine somatotropin (BST) in cows can enhance milk production by increasing milk yield and improving feed efficiency. BST promotes growth and lactation by stimulating metabolic processes, leading to higher milk protein and fat content. However, its use is controversial due to concerns about animal welfare, potential health effects, and consumer preferences regarding hormone-treated dairy products. Additionally, regulatory approval varies by region, with some countries banning its use.