2. The method of feeding sows for multiple litters The German livestock experts studied the method of adding 200 mg of vitamin E and 400 g of carrots to the sows when they were fed from the third day of weaning on the third day of weaning. The amount of these two additives was reduced by 50% and fed until 21 days of pregnancy. Using this method, the sow's litter size can be increased by 21.9%, and the sows and piglets are strong in physique and the survival rate of piglets is high.
3. Feeding baking soda to increase weight Dr. Stick, animal husbandry researcher at Cornell University in the United States, found that adding soda ash to lysine-poor pig feed can compensate for lysine deficiency and facilitate the digestion and absorption of crude fiber. Make the pig long and fleshy and gain weight.
4. Feeding copper to increase weight The latest research results in Japan showed that adding trace element copper in pig fattening period can significantly increase the weight of pigs, and inhibit the invasion of certain bacteria to pigs to ensure the healthy growth of pigs. In the feed with added antibiotics, if you add appropriate amounts of copper, you can increase the pig's daily weight gain by 6.7% and the feed utilization rate by 2%-5%.
5. Feeding saccharin weight gain According to reports from foreign magazines, it is effective to use right amount of saccharin to feed pigs. The method is: Adding 0.05g saccharin per kilogram of compound feed, dissolving saccharin first in water and then feeding in the main ingredient can increase the daily gain of the pig by 7%. For every 100 kg of body weight added, consumption and costs dropped by 4.8% and 3.5% respectively.
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