1, pregnant sows feeding target:
(1) reduce embryo mortality and increase litter size;
(2) to provide nutrition for embryo growth and improve the birth weight of newborn piglets;
(3) providing nutrition for the growth of the uterus and mammary glands;
(4) maintain the growth of sows;
(5) regulating the body metabolism of sows to prepare for subsequent lactation.
2, the key measure is to limit the intake of food (the excessive feeding during the middle and late pregnancy will decrease the feed intake of sows during lactation). Watch the pig feed to prevent the sow from getting too fat or too thin, so that the sow can reach the standard body condition.
The early pregnancy (130 days), at least 21 days from the start of restricted feeding breeding, every 1.8 - 2 kg.
During the second trimester (30-75 days), feed 2.5 to 3 kg of pregnant sow per day. Pregnant sows must have enough crude fiber to prevent constipation while keeping the sow free from hunger, keeping quiet, helping the fetus grow and developing, and ensuring that the sow itself is not fat.
The late pregnancy (75 - 114 days); birth weight of piglets in 70% stage of rapid growth, but the 75 - 95 day of gestation sows is breast tissue normal rapid stage of development, continue to use the pregnant sows expected, but increased daily feeding amount to 3 - 3.5 kg. Not only can meet the growth needs of the fetus, but also promote the development of the sow breast. 95-114 days after pregnancy, we should strengthen the nutrition, at this stage we should use feeding sow material to attack the fetus". In this stage the use of morninglight baotaiwuyou powder, 30-60g every day, every month for 10 days. The daily feeding amount was 3 - 3.5kg, but it should be reduced to 3-5 days before the birth of 2.0kg, and the feed was stopped until the day of birth.
3, avoid mechanical damage and prevent, extrusion, chase, articulator shock, reduce stress. In summer, especially to avoid heat stress, can feed add a ton of Astragalus immune peptide 1-1.25kg morninglight, Jinwei growth peptide 1kg.
4, avoid high fever, diseases caused by abortion, prohibit the use of drugs that cause miscarriage easily (dexamethasone, etc.). Timely feeding per ton of gold Qi - poison epidemic, anti 1kg, inflammation will cure 1kg. You can also add morninglight baotaiwuyou powder every day, each pig 30-60g, every month for 10 days, to the effect of Yangxue Anshen Qi.
5, to prevent constipation, if occurred, the amount of daily feeding green fodder and feed add per ton of food powder 1kg or stomach digestion laxative powder 1kg.
2014.5.23