Sows have a strong anabolism during pregnancy and feed nutrient levels play an important role in their performance. If nutrition is lacking during pregnancy, the sow is thin and the birth weight of piglets is low, which will result in a longer interval between weaning and estrus. If there is excess nutrients, it will not only result in feed wastage, but also cause the sows to become over-fertilized and reduce reproductive performance. Such as dystocia, reduced milk production.
Therefore, it is extremely important to properly formulate the diet of pregnant sows. Pig OK has compiled eight key points for scientific feeding of pregnant sows for your reference.
1 day feed intake
According to China's feeding standards, the daily feed intake of pregnant sows is as follows:
2 Dietary Nutrition Level
The diet of pregnant sows is mainly low-energy and low-protein, but attention should be paid to the comprehensive and balanced nutrition of the diet.
Crude protein 12%-13%, digestive energy 2.8-3.0 Mcal/kg, lysine 0.4%-0.5%, calcium 0.6%, phosphorus 0.5%.
3 For the sow to have a sense of satiety and vitamin supplements, it can be used with a variety of fine green or roughage feeds while feeding formula feed. However, green roughage has high moisture content, large volume, poor palatability, and the gestational volume of pregnant sows is limited. Therefore, attention should be paid to the processing of green roughage and increase the number of feedings.
4 The feed should not be changed frequently, otherwise it is also unfavorable for pregnant sows.
5 In the early and middle stages of pregnancy, green roughage is the main food, and the coarse fiber content of the diet generally does not exceed 10% to 12%.
6 In pregnant sows, sufficient calcium and phosphorus must be supplied from the feed, and the ratio should be appropriate. The ratio of calcium to phosphorus is preferably 1:1.5:1.
7 Must pay attention to the full supply of vitamin A, D and E of pregnant sows, because these three vitamins are not only the guarantee of strong metabolic activity in pregnant sows, but also can directly affect the development of the fetus.
8 Non-detoxified cottonseed cakes, rapeseed cakes, overly silage silages, powders and dregs, and distillers with more alcohol should be avoided.
9 sow feed should pay attention to hygiene, quality assurance, can not be used mildew, deterioration, freezing, toxic and strong irritating feed, or easy to cause miscarriage, stillbirth and weak tires.
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