Compound feed for pregnant sows, preparation method of compound feed and use method of compound feed

Abstract

The invention discloses a compound feed for pregnant sows, a preparation method of the compound feed and a use method of the compound feed. The compound feed mainly consists of the following ingredients in parts by weight: 35 to 52 parts of corn, 5.3 to 8.3 parts of bean pulp, 10 to 30 parts of wheat, 25 parts of bran, 1.33 to 1.36 parts of mountain flour, 1.7 to 1.8 parts of calcium hydrophosphate, 0.28 to 0.38 parts of lysine sulphate, 0.01 to 0.04 parts of threonine, 0.2 parts of sodium bicarbonate, 0.45 parts of common salt, 0.1 parts of choline chloride and 0.5 parts of premix compound. The compound feed provided by the invention has the advantages that the nutrition requirement of the pregnant sows and fetuses is met; the average farrowing number of the sows each time is great; the piglet birth weight is heavy; the breast development of the sows can be good; the milk is sufficient; the feed intake during the sow lactation period is increased; the piglet weanling body weight is heavy; the survival rate during the lactation period is high; meanwhile, the time interval from the sow weaning to the oestrum period is shortened; the estrus rate of the sows after the weaning is improved; the useful life of the sows is prolonged.

Description

technical field [0001] The invention relates to a compound feed for pregnant sows, a preparation method and a use method thereof, and belongs to the technical field of pig feed. Background technique [0002] The physical condition of the sow is one of the important factors in determining the suckling piglets, but today's sows are increasingly trapped in nutritional stress. Nutritional deficiencies can affect several breeding parameters and lead to a non-productive period; the non-productive period is mainly caused by the nutritional status and body condition of the sow, the wean-to-estrus gap and longevity. Among many influencing factors, feed nutrition occupies a crucial position. In sow breeding, the productivity of multiparous sows is higher than that of primiparous sows, so the management focus of the breeding farm should be to keep the multiparous sows in the herd as long as possible, so attention should be paid to growth, pregnancy The quality and quantity of daily f...

AI Technical Summary

Problems solved by technology

The feeding of pregnant sows is different from ordinary sows. Pregnant sows have more nutritional needs. However, many domestic farmers and breeding enterprises use the same dietary formula for pregnant sows and ordinary sows, which may easily cause embryo mortality. High piglet size, low litter size, and low birth weight of piglets

At present, most sows are raised in stalls after pregnancy, and the sows lack exercise. At the same time, because the control of body condition needs to limit the feed intake of pregnant sows, the incidence of constipation in pregnant sows is over 60%.

On the one hand, constipation in pregnant sows will lead to insufficient stomach filling and weakened peristalsis, which will affect their feed intake during lactation, and the feed intake of sows during lactation directly affects lactation ability, determines the growth rate of piglets, and affects The economic benefits of breeding; on the other hand, if the harmful metabolites in the body cannot be discharged in time, it will cause harm to the sow, making the sow weak during childbirth, resulting in dystocia or prolonged labor, resulting in stillbirth and great damage to the sow's body , seriously affect reproductive performance

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