Fermented feed for nursery pigs and preparation method of fermented feed

Abstract

The invention relates to a fermented feed for nursery pigs. The fermented feed for the nursery pigs comprises the following raw materials in parts by weight: 40-60 parts of ultrafine ground corn flour, 20-30 parts of bacillus subtilis fermentation solid, 3-6 parts of imported steam fish meal, 2-5 parts of milk powder, 3-8 parts of wheat middling, 1-2 parts of calcium hydrogen phosphate, 1-3 partsof a compound premix for the nursery pigs, 0.3-0.6 part of a fermentation acidifier, 0.02-0.04 part of lysine and 0.01-0.02 part of methionine. The fermented feed for the nursery pigs has the beneficial effects that according to the invention, the ultrafine ground corn flour, the bacillus subtilis fermentation solid, the imported steam fish meal, the milk powder, the wheat middling, the calcium hydrogen phosphate and the compound premix for the nursery pigs are adopted, the crude protein is reduced to be 15.5%-16.5% through a low-protein feed technology, the lysine and the methionine are supplemented at the same time, and the production performance of the nursery pigs can be improved while the use of the crude protein and the nitrogen emission are relieved; and according to the fermented feed for the nursery pigs in the invention, the stress of weaned piglets can be obviously reduced, the use of protein raw materials is obviously relieved, and a preservation technology of the fermentedwet feed is improved.

Description

technical field [0001] The invention relates to the field of pig feed, in particular to a fermented feed for nursery pigs and a preparation method thereof. Background technique [0002] In traditional breeding and modern breeding technology, the weaning stage of suckling pigs is the biggest stress response stage of pigs. Due to environmental changes, feeding stress and driving stress, etc., it is easy to cause pigs to appear from the outside, such as feed intake Significant decline, long hair and rough hair, slow growth, high feed-to-meat ratio, prone to diarrhea, etc. At the same time, there are also problems such as damaged intestinal villi, decreased internal digestive enzymes, and slow nutrient absorption. At the same time, because the digestive system and other functions of suckling pigs are not perfect, eating untreated macromolecular protein raw materials or high-content non-high-quality protein raw materials may cause nutritional diarrhea, which will significantly re...

AI Technical Summary

Problems solved by technology

From a technical point of view, antibiotic-free breeding can basically be achieved in the stage of large pigs. Even if antibiotics are used to promote growth, antibiotics are still required in most of the feed for suckling pigs, nursery pigs, and piglets. Some products that replace antibiotics, such as Antimicrobial peptides, lysozyme, essential oils, etc., are affected by policy risks, cost performance, and effects, and cannot be used on a large scale and at low cost, and some products with good effects often contain antibiotic residues after screening and testing. Therefore, there is no antibiotic feed technology in recent years. , biological fermentation technology and low-emission and low-nitrogen feed technology have become research hotspots, which can reduce the use of antibiotics and protein resources

[0005] Most of the fermented feeds are mostly dried at high temperature for the consideration of prolonging the shelf life, reducing caking and convenient use, so that the flavor substances of the biologically fermented feeds are volatilized and most of the active substances are invalid; a small part of the fermented feeds are undried Wet materials are produced in the form of wet materials, but because the moisture is too high, it is easy to freeze, agglomerate, and moldy in winter in the north, so it still cannot be mass-produced