The health of the first born sow
Growth regulation
For gilts (binary hybrids), starting from 30 kg, the diet should contain 13 megajoules of digestible energy, 16% of crude protein, 0.8% of lysine, 0.75% of calcium, and 0.65% of phosphorus. , let it try to eat. From the weight of 45 kg, increase the calcium and phosphorus content by 0.1% each. When gilts are 150 days old and have a body weight of about 80 kilograms, feed intake is controlled and they are fed daily between 2.3 kg and 2.5 kg. Local gilts should have a body weight of less than 2 kg to 3 kg.
Breeding period
The initial mating age of the binary cross gilts was carried out at an average weight of 110 kg at 8 months of age, and that of the indigenous pigs at 70 kg. As the gilts began to restrict feeding control at the age of 5 months, they began to increase their diets by 40% to 50% from the 14th day before mating, reaching 3.8 kg to 4 kg daily.
Moderate nutrition during pregnancy
Immediately after mating, the feed should be reduced to the level before the aphrodisiac feed. The diet formula was 12.1 MJ of digestive energy, 13% of crude protein, 0.6% of lysine, 0.75% of calcium, 0.65% of phosphorus per kilogram of feed, and 2.2 kg of feed per day until 84 days of pregnancy. Starting from 85 days of pregnancy, Dietary nutrition was adjusted to 1251.3 joules per kilogram of feed, 14% crude protein, 0.75% lysine, 0.8% calcium, 0.65% phosphorus, and 3.25kg to 3.5kg daily, until 3 days before delivery. Drop to 1.8 kg to facilitate production.
Intensive food intake during lactation
Sows should gradually increase to the maximum amount of feed 5 to 7 days after giving birth. The method for estimating the dietary yield of sows during the lactation period is to increase 0.5 kg of feed for every 1 pig raised on the basis of 1.5 kg of diet, and 6.5 kg for feeding 10 pigs. If sows do not consume 6.5 kilograms per day, they can add 2% to 4% of edible fats and oils in the feed. The nutritional level of the sow is 13 megajoules to 13.8 megajoules per kilogram of digestible energy, and 14% to 16% of the crude protein. Lysine 0.7% to 0.75%, calcium 0.84%, phosphorus 0.7.
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