Breeding sows
For 80-90kg gilts, the daily feed intake does not exceed 2kg of compound feed per day. The gilt diet should contain 3.1 megacalories/kg digestion, 15% crude protein, 0.7% lysine, and 0.82% calcium. Phosphorus 0.73%, but also to ensure adequate supply of trace elements and vitamins.
Pregnancy sows
The nutritional characteristics of pregnant sows are to control the appropriate level of nutrition. China's feeding standards stipulate that when the weight of sows in the early pregnancy (80 days before pregnancy) is 90-120kg, the daily feed intake is 1.7kg, the weight is 120-150kg, the daily intake is 1.9kg, and the 150kg weight is more than 2kg. During the second trimester (one month before delivery), the body weights were 90-120 kg, 120-150 kg, and 150 kg, and the daily feed intake was 2.2 kg, 2.4 kg, and 2.5 kg of compound feed. Dietary nutrient levels ranged from 12% to 13% for crude protein, 2.8 to 3.0 Mcal/kg for digestion, 0.4% to 0.5% for lysine, 0.6% for calcium, and 0.5% for phosphorus. In addition, in addition to feed formula feed, in order to make sows have a sense of satiety and vitamin supplements, it is best with a variety of fine green feed or roughage.
For weaned sows that are lean after weaning, feed intake should be increased from the 10th day before mating, until breeding is resumed after breeding. For sows that have reached 70% of puberty in the first trimester of pregnancy, low pre-pregnancy levels and increased feed intake (according to feeding standards). For juvenile sows, due to their own development and the needs of the fetus, a gradual raising of the nutritional level of the feeding method should be adopted throughout the pregnancy period. No matter which type of sow, late pregnancy (90 days to 3 days before delivery) requires short-term excellent feeding, by feeding 1 kg of compound feed per head per day.
Sowing sow
5-7 days before labor should reduce the concentrate by 10%-20% of the diet, and increase the wheat bran in the diet, which can increase to half of the original feed and prevent constipation. 10-12 hours before delivery is best not to feed, but should meet the drinking water, cold water to warm up. You can feed 0.9-1.4 kg of diet on the day of delivery, and then gradually increase the amount. After 5-7 days, the feeding standard and feeding amount of the nursing sow are achieved. It is best to give a certain dose of antibiotics within 7-10 days before sow delivery, which can prevent various diseases of piglets and sows.
Breastfeeding sows
The lactating sows should have 14%-15% crude protein, digestive energy 2.9-3.1 Mcal/kg, salt 0.4%-0.5%, lysine 0.5%-0.6%, calcium 0.65%, phosphorus 0.5% , pay attention to the supply of trace elements and multidimensional elements. Lactating sow feeding points to grasp the amount of daily feeding and frequency. Don't feed too much after birth, gradually increase the daily feed volume after 3-5 days, and turn normal after 7 days. 10-20 days after childbirth, the daily feed should reach 4.5-5kg of compound feed, 20-30 days to reach 5.5-6kg, 30-35 days gradually dropped to about 5kg. It is better to feed 4 times a day, and it is better to be at 6 o'clock, 10 o'clock, 14 o'clock and 22 o'clock everyday. It is best for lactating sows to feed wet material at a feed to water ratio of 1:0.5-0.7.
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