In the production, lard, butter, soybean oil, etc., which are used for adding, can be weighed according to the dosage, and then put into a pot to form a soup, then add a seasoning agent such as chopped green onion, and then directly mix it into the feed for feeding. This method is widely used for professional livestock and poultry farmers with large-scale breeding; farmer homes and feed processing enterprises with large livestock and poultry stocks use special oil-adding equipment. You can also smash the oil into a viscous shape, add a certain proportion of bran feed or cornmeal, a certain amount of antioxidants, stir evenly, dry it on the cement floor in summer and autumn, dry or press into cake in winter and spring. When using, the cake pieces are crushed and added to the feed according to the proportion of the feed formula.
To properly mix animal and vegetable fats, livestock and poultry usually use animal and vegetable fats in a ratio of 1:0.5 to 1. Adding fat should be reasonably added according to the animal's breed, production performance, external environment and other factors according to the body's needs. Add too little to achieve the added effect. Adding too much will affect the palatability and digestion and absorption of the feed, and affect other Balanced nutritional levels. The amount of fat added is generally: 10% to 15% of prenatal to lactating sows, 5% to 10% of piglets, 3% to 5% of growing fattening pigs, 5% to 8% of meat chickens, and 3% of laying hens. 5%, cow diets add 400 grams to 600 grams of fat per day.
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