First, the need for control of the pig's lyrical
To enable sows to have a breeding condition, if the sows are prolific and productive, they must have the status of lean, non-fertility breeding, too thin, malnutrition, poor fetal development, poor vitality of piglets, and poor quality. Too obese, easy to fetal or have fewer litters. It is best to maintain the sow breeding sensation at 5?7, and it is best to keep the sensation in the whole pregnancy at 6?8. Therefore, according to the sow's body condition, the amount of concentrate feed should be increased or decreased to make it have a breeding condition.
Second, we must strengthen feeding and management to ensure the quality of breeding
The amount of breeding is directly related to the number and strength of piglets. In order to ensure high yields of sows at multiple births, VE 200 mg can be added to the sow's diet after weaning, and half a catty per day for the sows when they are close to the species. ? The dish is chopped and fed into the feed. A few days before the sow’s estrus, 1000 units of chorionic gonadotropin can also be injected intramuscularly.
For sows with poor estrus, the following drugs can be used to aphrodicate: Angelica 20 grams, Rehmannia 30 grams, Cistanche 35 grams, Epimedium 35 grams, Angelica 15 grams, Yang Qishi 30 grams, Motherwort 40 grams, Jianshui spices Hello, the aphrodisiac effect is particularly good. When mating a sow, it should be done 24 to 48 hours after the sow has started estrus. Within one month after sow mating, more fish meal or bean cake can be fed, and VE80 mg can be added to the diet, which is very favorable for the estrus and development of the pregnant woman.
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