What is the matter of America's non-vegetarian cow milk? Why does America want to send non-vegetarian cow milk?

The trade deal between India and the US has been in talks for a long time, but now the matter seems to be stuck. According to a report in India Today, the US wants to send its dairy products to India, but India has refused. America also wants to send non-vegetarian milk of cows. India is not ready for that. He says that a certificate will be required for dairy products.
India is one of the largest producers of milk in the world. The dairy sector contributes up to 3 per cent to India's economy, with a total value of about Rs 9 lakh crore. According to SBI, if the US sends goods related to the dairy sector, it can cause a loss of Rs 1.03 lakh crore to India every year. He has also cited religious sentiments while rejecting America.
In India, cows are fed grass and fodder. Along with this, many other things are given as food, but there is very little of it in America. Beef, pork, chicken, fish, or horse fat are commonly used as a source of low-cost protein. That is why India does not want to take its dairy products. The US has said that this is creating unnecessary problems in the trade deal. US President Donald Trump has said that talks with India on a trade deal are going on. "We will deal with India like we did with Indonesia. The copper sector in Indonesia is very strong. Trump says he will get access to Indonesia without tariffs.