Special beta-dextranase-containing complex enzyme for piglet and preparation method thereof

Abstract

The invention relates to a special beta-dextranase-containing complex enzyme for a piglet and a preparation method thereof, and belongs to the field of feed enzyme preparations. The complex enzyme consists of the following components in parts by weight: 5 to 20 parts of Chinese herbal medicine powder, 800 to 1200 parts of xylanase, 80 to 120 parts of cellulase, 200 to 250 parts of beta-dextranase, 15 to 25 parts of mannase, 800 to 1200 parts of protease and 50 to 100 parts of medium-temperature alpha-amylase, wherein the beta-dextranase is prepared from Bacillus licheniformis beta-10-25 and has the preservation number of CCTCC NO:M2013538. The complex enzyme is prepared by the combination of fermentation methods of low-temperature culture medium interpolation and batched inoculation. The prepared complex enzyme can be used for effectively supplementing insufficient endogenous enzymes such as the digestive tract protease, the amylase and the like of the piglet, thereby improving the digestion utilization rate of the piglet to a feed and preventing the nutritional diarrhea of the piglet.

Description

technical field [0001] The invention belongs to the technical field of enzyme preparations, and in particular relates to a special compound enzyme for suckling piglets and a preparation method thereof. Background technique [0002] In animal husbandry, suckling pig rearing is the most complex of all stages of pigs. The consequences of unreasonable nutrient supply are slow growth of pigs, high diarrhea rate and high mortality rate, which in turn slows down the growth of medium and large pigs and prolongs the slaughter time. [0003] However, in order to cut off the vertical transmission of maternal diseases, shorten the reproductive cycle of sows and prolong the breeding life, people have widely used early weaning technology in the large-scale pig breeding industry. However, due to the lack of innate immunity of newborn piglets, the development of the digestive system is not perfect, and the ability to secrete digestive enzymes is weak, direct supply of feed mainly such as c...

AI Technical Summary

Problems solved by technology

However, due to the lack of innate immunity of newborn piglets, the development of the digestive system is not perfect, and the ability to secrete digestive enzymes is weak, direct supply of feed mainly such as corn can easily lead to low feed digestibility, low feed intake, and slow growth of piglets. , high rates of diarrhea

[0004] In order to overcome various problems of suckling pigs after weaning, most enterprises start from supplementary feeding before weaning, food inducement, acidification of rations, use of feed materials with good palatability and easy digestion and absorption, adding exogenous enzymes, and reducing antigens in rations. Improvements and optimizations have been made in many aspects, such as stability, reducing the crude protein content of the diet, and using accelerators, but the actual results are uneven