Abstract: The preparation of diets with feed ingredients containing non-starch polysaccharides (NSP) can partially or completely replace high-energy feed ingredients such as corn to alleviate the lack of energy feed. However, anti-nutritional factors such as β-glucan and arabinoxylan in NSP pose a potential hazard to pig growth when formulating diets. In recent years, with the rapid development of biotechnology, it has become possible to reduce the anti-nutritional effect of NSP, improve the nutrient digestibility and improve the intestinal health of pigs. This article reviews the methods of measuring NSP in pig diets, anti-nutritional effects, elimination methods and the application of NSP-related enzymes. Key words: pig; non-starch polysaccharide; enzyme ZENG Zhi-kai PIAO Xiang-shu Ministry of Agriculture Feed Industry Centre, China Agricultural University, Beijing 100193 Abstract: Key words: Pig; Non-starch polysaccharides; Enzyme introduction Non-starch polysaccharides (NSP) are an important component of pig diets and one of the main sources of energy. In recent years, with the deep understanding of feed chemical composition and botany structure, the nutritional and anti-nutritional effects of NSP in pig diet have become a hot issue in pig nutrition research. 1 NSP anti-nutritional effect 1.1 NSP and gastrointestinal tract viscous 1.2 Effects of NSP on intestinal microflora 1.3 Effects of NSP on digestive tract secretion and digestive enzyme activities 1.4 Effects of NSP on the development of digestive tract in animals 1.5 Effects of NSP and feed metabolic energy and nutrient digestibility 2 NSP nutrition 3 Mechanism and influencing factors of NSP enzyme 4 NSP enzyme preparation application problems 4.1 Standardization of enzyme activity analysis methods 4.2 Relationship between feed enzyme preparation and dietary composition 4.3 Study on the effect model of enzyme 4.4 Relationship between exogenous enzymes and endogenous enzymes 4.5 Compatibility of complex enzymes 4.6 Seeking high-yield strains
With a beautiful mix of white and gray , Victoria White collection adds an elegant tone to your walls and floors. Blue Glass Mosaic Tile ,Gold Mirror Glass Mosaic Tile,Dining Room Glass Mosaic Tile,Glass Mosaic Tile Gong Loon Jadeite Manufacture Co.,Ltd , https://www.bluebird-mosaic.com
For an all-white look that's surprisingly cozy, Victoria White is a gorgeous choice. Hints ofgray and tan warm up this beautifully subtle glass and differentiate it from other white tiles. Create a soothing, monochromatic look using different sizes and shapes, or pair it with other collections so it functions as an anything-but-boring neutral. The shower, backsplash, wall or floor you've been dreaming about is within reach with the Victoria White collection.
Theory and application of research on pig diet NSP and related enzymes