Feed selection can be selected from grass seeds such as corn, wheat, rice and its processing by-products such as glutinous rice bran, wheat bran, corn flour, etc. These nutrients are more than 13% nutrients after cooking, and their feeding effect is only equivalent to raw feed. 87%.
The raw feed method can be divided into wet feed and dry feed. The ratio of wet feed and water should not exceed 1:2.5. Otherwise, the secretion of digestive juice will be reduced, the activity of digestive enzymes will be reduced, and the digestion and absorption of feed will be affected. The appropriate ratio should be about 1:1. Dry feeding is in the form of a powder. Feed dry feed and then feed water. The advantage of dry feeding is that the feed is not easily degraded, and it can be fed for a few days at a time, saving manpower and making it easy to make compound feed to pigs.
Before feeding, raw materials should be disinfected and pigs should be washed and disinfected to prevent pigs from being infected with parasitic diseases. Generally soaked in lime or potassium permanganate solution. Rapeseed cakes, cotton seed cakes, fresh cassava, buckwheat, etc., containing certain toxins, must generally be sterilized, soaked, fermented, or silaged to be detoxified before being fed.
The raw meal should be crushed to a moderate degree. The diameter of the raw material is 1.2~1.8mm, the diameter of the particles is less than 1mm, the pig easily sticks the mouth when eating, affect the palatability, and easily cause gastric ulcer; the particle diameter greater than 2mm is rough, Poor palatability, pigs do not like to eat.
The amount of raw material should be reasonably fed to pigs, and the amount of feed differs depending on the pig's different growth stages and production performance. Piglets and fattening pigs are allowed to feed freely, and breeding pigs, especially those who can breed sows, must be quantified. Generally, non-breeding species of boar concentrate feeds should be controlled at 2 to 2.5 kg and 3 to 3.5 kg at breeding season. The daily feeding amount of the pregnant sow concentrate is 2 to 2.5 kg and the lactation period is 5 to 6 kg.
Sufficient Drinking Water The live pigs drink 2 to 3 times the amount of dry feed in winter, 4 times in spring and autumn, and 5 times in summer. In particular, lactating sows and piglets must not be deficient in water, otherwise they will affect the sow's milk secretion. When feeding water, pay attention to the clean water, and keep the water temperature warm in winter and cool in summer.
Pay attention to the gradual transition from the clinker to feed the raw material, there must be a transition period, the method is to first feed 1/3 of the raw material; 3 to 5 days later changed to 2/3, and then 3 to 5 days later Can all feed raw materials.
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