A kind of preparation method of laying duck feed additive

Abstract

The invention relates to a preparing method for a feed additive, and in particular relates to a preparing method for a laying duck feed additive. The preparing method comprises the following steps: weighing beer yeast mud, adding edible salt and pure water, uniformly stirring, adding phosphoric acid to adjust the pH to 5.0-5.5, under a condition of 50-55 DEG C, performing heat preservation for 40-48 hours so as to enable yeast to be self-dissolved, and after self-dissolving is finished, adding calcium oxide to adjust the pH to 7.0, so as to obtain a yeast self-dissolved liquid; uniformly mixing the yeast self-dissolved liquid, feed-level fat powder and bran at a mass ratio of 10:1:10, drying the mixture under the sunshine, and then performing smashing, granulation and packaging to obtain a finished product. The feed additive disclosed by the invention contains a large quantity of vitamin D, absorption of calcium and phosphorus can be promoted, and the acalcicosis of laying ducks can be effectively prevented and treated.

Description

technical field [0001] The invention relates to a production method of a feed additive, in particular to a production method of a laying duck feed additive. Background technique [0002] An average duck eggshell contains about 3 grams of calcium, and the utilization rate of calcium in laying ducks is about 65%, because About 4.62 grams of calcium is needed to produce 1 egg. Reasonable calcium supplementation can reduce the breakage rate of eggs and increase egg production Rate. If there is insufficient calcium in the feed or the combination of nutrients in the feed is unreasonable or the feeding management is not good, the laying duck will use the calcium form in the bone Form an eggshell, the calcium in the bone is passively used to form an eggshell, the longer the eggshell strength The worse it is, not only will there be soft or shellless eggs, but it will also increase feed consumption and promote Fat deposition in the liver and muscle seriously affects the egg produc...

AI Technical Summary

Problems solved by technology

If there is insufficient calcium in the feed or the combination of nutrients in the feed is unreasonable or the feeding management is not good, the laying duck will use the calcium form in the bone Form an eggshell, the calcium in the bone is passively used to form an eggshell, the longer the eggshell strength The worse it is, not only will there be soft or shellless eggs, but it will also increase feed consumption and promote Fat deposition in the liver and muscle seriously affects the egg production rate

Laying ducks under grazing conditions generally do not have the problem of calcium deficiency because they eat a large number of fresh shellfish rich in calcium and are exposed to the sun, while laying ducks raised in captivity may be due to the Insufficient calcium, unreasonable mix of feed nutrients or poor feeding management lead to calcium deficiency in laying ducks. Calcium deficiency in laying ducks will cause huge losses to laying duck breeding. It is a problem worthy of attention in duck egg production

[0003] Beer yeast slime is a by-product of beer production. After the beer is fermented and mature, a large amount of yeast slime is formed. Except a part is reserved for beer fermentation inoculation, the rest is mainly used as feed, and even discharged with waste water, which not only pollutes the environment, but also causes great waste