By R. Mosenthin, J. Zentek and T. Żebrowska (Eds.)
A part of the Biology of starting to be Animals sequence, this ebook provides up to date details at the biology of animal foodstuff. It describes how nutritional modulation of the gastrointestinal functionality in younger and growing to be cattle is completed via other forms of feed ingredients, corresponding to probiotics, prebiotics, natural acids, and novel resources of feed enzymes, in addition to bioactive parts and metabolic modifiers. The e-book additionally discusses the position of nutrients in immune reaction and animal health and wellbeing, the matter of antinutrients - together with mucotoxins and a few minerals - in animal meals, and the biotechnological, molecular, and ecophysiological points of nutrients. additionally, defense and criminal elements are presented.Critical evaluate and state-of-the paintings articles written via famous specialsists in animal food and gastrointestinal physiologyNovel methods for bettering gastrointestinal functionality in younger farm animalsNew methods of interpretation of easy wisdom of foodstuff
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Barbeau, A. ), Proceedings of the 8th Int. Symposium on Digestive Physiology in Pigs. Saint Malo, France 88, pp. 391–394. , 1987. Lacitol, a new hydrogenated lactose derivative: intestinal absorption and laxative threshold in normal human subjects. Br. J. Nutr. 57, 195–199. , 1986. Influence of the gut flora and of some growth-promoting feed additives on nitrogen metabolism in pigs. I. Studies in vitro. Livest. Prod. Sci. 14, 161–176. , 1988. Spermine and spermidine induce intestinal maturation in the rat.
In contrast to other omnivores such as humans, the proximal regions of the digestive tract (stomach and small intestine) of pigs are also colonized by a permanent microbiota (Savage, 1977; Jensen, 2001). This has been attributed to the fact that the young pig is coprophagic (Sansom and Gleed, 1981). , 1995). The gastric microbiota, especially in the preweaned piglet, is involved in controlling the number of potential pathogens passing into the small intestine. , 1980). The composition of the microbiota attached to the small intestinal epithelium is comparable to that of the stomach (Conway, 1994), with the dominant cultivable bacteria species being enterobacteria, streptococci, clostridia and lactobacilli (Jensen, 2001).
1990), a route for the excretion of waste products of metabolism and toxic substances, and provision of an environment for the complex microbiota that concludes the digestive process by fermentation (Cummings, 1983). Another of its principal functions is the salvage of energy and nutrients through its symbiotic relationship with the GIT microbiota. Whereas the time taken for the intestinal contents to pass the length of the stomach and the small intestine is only 2–16 h in pigs, the large intestinal transit time is normally 20–80 h (Low, 1993).