In the production, lard oil, beef oil, soybean oil, etc. used for the addition may be added according to the amount, and then put into a pot and boiled into an oil soup, and then seasoning agents such as green onion are added, and the cool food is directly mixed into the feed for feeding.
To properly use animal and plant fats, livestock and poultry usually use animal and vegetable fats, with a ratio of 1:0.5 to 1. The amount of fat added is generally from prenatal to lactating sows 10% to 15%, piglets 5% to 10%, growth and finishing pigs 3% to 5%, broiler chickens 5% to 8%, laying hens 3% to 5 %, dairy cows add 400 to 600 grams of fat every day.
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