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JulThe pulverization fineness of feed indicates that the fineness of various mineral trace element additives should be at least 60 mesh. Generally, the finer the mineral element premixed additive is pulverized, the more uniform the mixing, the more the feeding effect it is good. However, it is not advisable to smash too finely, resulting in insufficient chewing of livestock and poultry, uneven mixing of saliva, and hinder digestion. After the energy and protein feed are pulverized, the contact surface between the feed and the digestive juice of the livestock and poultry can be increased, and the digestibility of the feed can be improved. The fineness of the feed should vary depending on the type of livestock and poultry.
Chicken feed should not be too fine, because chickens like pellets or broken cereals can be used in combination. For example, corn, brown rice and bean cake should be processed into powdered material, and rice and broken rice can be directly added into the feed mixer in granular form. When laying soft-shelled eggs for laying hens requires calcium supplementation, the fineness of wheat and barley should be less than 2.5 mm, and limestone, shells, etc. should be ground into granule-calcium granules of high sorghum size, and fed the last time every night. Feeding when feeding, because the granular calcium stays in the chicken for a long time, it is beneficial to the absorption and utilization of the chicken body, so the calcium supplement effect is good.
Feed the pig's feed, the finer the better. The piglet feed is better with special pellet feed or crushed pellet feed. Piglets below 25 kg can be used as general piglets, and can be fed to beans and other energy feeds; 25 kg or more of pig feed. The pulverization fineness can be controlled within 2 mm.
The fineness of the concentrate of cattle and sheep can exceed 2 mm, and the feed of old cattle and sheep can be crushed to less than 1 mm, because the cow can ruminate, and the feed is slightly thicker, which is good for ruminating, which is good for digestion.
The pulverization fineness of the feed should take into account the type of livestock and poultry, and should also pay attention to not smashing the fat-rich grain feed such as corn, oats, etc. to avoid rancidity and deterioration, and should pay attention to the storage time.