Nine main points of scientific feeding of pregnant sows

The synthetic metabolism of sows is exuberant during pregnancy, and the feed nutrition level plays an important role in its production performance. If there is a lack of nutrition during pregnancy, the sows will be thin and the birth weight of piglets will be low, and the interval between weaning estrus will become longer; if there is excess nutrition, it will not only cause feed waste, but also lead to the decline of reproductive performance of sows due to overfertilization. such as dystocia, reduced lactation and so on.

Therefore, the rational preparation of diet for pregnant sows is very important. Pig OK has sorted out eight key points of scientifically feeding pregnant sows for your reference.

Daily feed intake

According to the feeding standard of our country, the daily feed intake of pregnant sows is as follows:

2Nutrition level of grain

The diet of pregnant sows is mainly low-energy and low-protein, but attention should be paid to the comprehensiveness and balance of dietary nutrition.

Crude protein 12% Mel 13%, digestible energy 2.8-3.0Mcal/kg, lysine 0.4% Mel 0.5%, calcium 0.6%, phosphorus 0.5%.

(3) in order to make sows feel full and supplement vitamins, compound feed can be fed with excellent green feed or roughage at the same time. However, the green roughage has high moisture, large volume and poor palatability, and the gastrointestinal volume of pregnant sows is limited, so we should pay attention to the processing of green roughage and increase the feeding times.

(4) the feed should not be changed frequently, otherwise it will be disadvantageous to pregnant sows.

5 in the early and middle stages of pregnancy, green roughage is the main feed, and the content of crude fiber in the diet generally does not exceed 10% to 12%.

(6) for pregnant sows, adequate calcium and phosphorus must be supplied from the feed, and the ratio of calcium to phosphorus should be appropriate, and the best ratio of calcium to phosphorus is 1-1.5.

7 attention must be paid to the adequate supply of vitamins A, D and E in pregnant sows, because these three vitamins are not only the guarantee of strong metabolic activities in pregnant sows, but also directly affect the development of the fetus.

8 undetoxified cottonseed cake, rapeseed cake, excessive acid silage, powder pulp and powder dregs, distiller's grains with more alcohol should be avoided.

9 sow feed should pay attention to hygiene and ensure quality, do not use moldy, deteriorated, frozen, toxic and strongly irritating feed, otherwise it is easy to cause abortion, stillbirth and weak fetus.