9results about How to "Improve digestive enzyme activity" patented technology

The application discloses a kind of fermented feed fermented by three strains of probiotics of Bacillus YA ( Bacillus sp ), yeast Y ( Saccharomyces cerevisiae ) and capsular red bacteria R3 ( Rhodobacter capsulatus ), and preparation method and application in aquaculture thereof, and viable count is not less than 1×10 7 CFU / g.The fermented feed is replaced ordinary feed according to certain proportion, and feeding result shows that aquaculture water quality is significantly improved after adding fermented feed, and fish growth performance, digestive enzyme activity, immunity, and muscle quality are also obviously improved.Using the feed in suitable range can shorten growth cycle, reduce cost, improve aquaculture environment, reduce antibiotic use, and improve muscle quality of farmed animals, with good economic and ecological benefits, simple fermentation process, low cost, and suitable for industrial large-scale production.

The application provides a composition for improving intestinal digestive enzyme activity and application thereof, and belongs to the technical field of animal medicine. The composition is composed of double-kidney polysaccharide, ginsenoside Rb1 and ginsenoside Rg1. In the composition, the mass ratio of the double-kidney polysaccharide, the ginsenoside Rb1 and the ginsenoside Rg1 is 90:5:5 or 95:2.5:2.5, preferably 90:5:5, and the intestinal digestive enzyme is specifically duodenal trypsin and amylase. Experimental results show that the composition can significantly synergistically improve the activities of the duodenal trypsin and amylase of laying hens, improve the feed utilization rate, thereby improve the egg production rate, improve the egg weight and the eggshell strength, and effectively improve the breeding benefit of the laying hens.

The invention discloses a yak breeding method, and belongs to the technical field of livestock breeding. According to the breeding mode, the yaks in the three-month green grass period from June to August are grazed, the yaks in the three-month withering period from September to November are grazed and are fed with concentrated feed in a supplementary mode, and the yaks in the six-month hay period from December to May are bred in a barn feeding mode. The feed has very positive significance in increasing the weight of yaks, increasing the income of herdsmen, realizing balanced feeding and balanced slaughtering of yaks all year round and protecting the ecological environment.

The present invention belongs to the field of microorganisms, and in particular to a microbial composition and its application. The microbial composition of the present invention includes a microorganism with glucuronidase activity and Lactobacillus plantarum ZY-002, wherein the microorganism with glucuronidase activity includes Levilactobacillus brevis, preferably Lactobacillus brevis ZY-001, and the microbial composition of the present invention can realize the preparation of bezoar cultured in vitro, and can produce calcium bilirubin more efficiently than single strain fermentation.

This application discloses a marine fish feed and its preparation process, relating to the field of aquaculture feed technology. It includes 73.2-82.8 parts by weight of protein components, 10.8-13.2 parts by weight of energy components, 4.5-5.6 parts by weight of fortifying components, 2.5-3.5 parts by weight of functional additives, and 33.5-40% by weight of a compound bacterial solution. The protein components include 28-32 parts by weight of red fish meal, 40-43 parts by weight of modified compound protein, 4-6 parts by weight of soybean protein concentrate, and 1.2-1.8 parts by weight of compound enzymatically hydrolyzed fish lysate. The modified compound protein is a biparental composite modified protein grafted with hydrophilic and hydrophobic monomers. This application achieves the effect of gentle dissolution of the feed in seawater through the combination of biparental composite modified protein and fortifying components, along with the synergistic effect of specific components, thereby improving nutrient utilization and digestibility, reducing fish meal dependence and aquaculture costs, and promoting fish growth.

The invention relates to the technical field of microorganisms, in particular to a probiotic composition capable of promoting nutrition digestion and absorption and application of the probiotic composition. According to the application of the bifidobacterium animalis subsp. Lactis B-01 in preparation of products with the effect of promoting digestion and absorption, experiments prove that the probiotics have the effects of obviously promoting digestion and absorption of intestinal tracts and maintaining health of the intestinal tracts. After a probiotic product composed of animal bifidobacterium subsp. Lactis B-01 is taken, digestion and absorption of intestinal tracts can be effectively promoted. Meanwhile, the probiotics disclosed by the invention have a great application prospect in preparation of products for maintaining intestinal flora balance and health and promoting intestinal digestion and absorption.

This invention relates to the field of microbial fermentation feed technology, and discloses a zero-wastewater feed ingredient production method based on two-stage fermentation. The method includes inoculating *Bacillus bellis* into a liquid fermentation medium for liquid fermentation to obtain a liquid fermentation mixture; centrifuging all of the liquid fermentation mixture to obtain *Bacillus bellis* cells and collecting the supernatant containing the remaining *Bacillus bellis*; adding yeast and lactic acid bacteria to the collected supernatant, then mixing it with solid fermentation raw materials to form a solid-liquid mixture; adding purified water or solid fermentation raw materials to control the fermentation moisture content; and then fermenting the moisture-adjusted solid-liquid mixture under sealed conditions to obtain a pre-fermented mixture as the feed ingredient. This invention avoids wastewater generation during the production process and improves the digestive enzyme activity of the product.

The invention discloses a Penaeus vannamei feed and a preparation method thereof, and belongs to the technical field of aquatic animal feed. The Penaeus vannamei feed comprises the following raw materials: basic feed, seabuckthorn flavonoids and cassia seed polysaccharide. The invention also discloses a preparation method of the Penaeus vannamei feed. The Penaeus vannamei feed prepared by the invention can improve the metabolic capacity, antioxidant capacity and immune capacity of Penaeus vannamei, reduce its oxidative stress, improve its digestive enzyme activity, effectively control and prevent the outbreak of shrimp diseases, and has important practical significance for the development of green and environmentally friendly shrimp farming industry.

The invention relates to the technical field of feed additives for aquaculture, and discloses a seaweed feed additive for improving the body color of prawns and a preparation method thereof. The seaweed is rich in high protein, carbohydrates and lipids, has high nutritional value and antioxidant capacity; sulfated seaweed polysaccharides extracted from the seaweed by a water extraction method strengthen the intestinal microecological stability and immune function of the shrimp body; a part of microalgae astaxanthin powder extracted from Haematococcus pluvialis by an enzyme extraction method can be used by the shrimp body as a nutrient, and the other part is deposited in the shrimp skin layer, muscle and shell, etc., to improve the problem of abnormal body color of prawns, lighter body color or even blue body color, and has an excellent color enhancement effect; at the same time, an appropriate amount of concentrated cottonseed protein is added to significantly promote the growth of prawns, and the components in the feed additive synergistically enhance the effect, promote the growth of prawns and improve the body color of prawns, and are conducive to the sustainable and healthy development of prawn farming.