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[Relationships between the apparent digestibility of crude protein and the amino acid balance of the swine digestive tract]. 1977

U Bergner, and A P Dmitrocenko

A diet of equal composition (88% barley, 5% extracted sunflower meal, 3% fishmeal and 3% yeast) was subjected to 9 different forms of thermal treatment and fed to experimental pigs. The biological value of the proteins was found to decline from 65.9 below 50. The amino acid balance of the digestive tract ("true digestibility of amino acids" according to other authors) proved to deteriorate due to the thermal treatment. The individual amino acids always revealed highly significant positive correlations with the apparent digestibility of crude protein. This finding is related with the often demonstrated fact that the fecal protein always has a constant amino acid composition, irrespective of feed protein and, consequently, only influences the quantitative fecal protein secretion, i. e. the amino acid balance of the digestive tract which is suggested to be the cause of the mathematical relations shown.

UI MeSH Term Description Entries
D004044 Dietary Proteins Proteins obtained from foods. They are the main source of the ESSENTIAL AMINO ACIDS. Proteins, Dietary,Dietary Protein,Protein, Dietary
D004063 Digestion The process of breakdown of food for metabolism and use by the body.
D005243 Feces Excrement from the INTESTINES, containing unabsorbed solids, waste products, secretions, and BACTERIA of the DIGESTIVE SYSTEM.
D000596 Amino Acids Organic compounds that generally contain an amino (-NH2) and a carboxyl (-COOH) group. Twenty alpha-amino acids are the subunits which are polymerized to form proteins. Amino Acid,Acid, Amino,Acids, Amino
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D000824 Animal Nutritional Physiological Phenomena Nutritional physiology of animals. Animal Nutrition Physiology,Animal Nutritional Physiology Phenomena,Animal Nutritional Physiological Phenomenon,Animal Nutritional Physiology,Animal Nutritional Physiology Phenomenon,Veterinary Nutritional Physiology,Nutrition Physiologies, Animal,Nutrition Physiology, Animal,Nutritional Physiology, Animal,Nutritional Physiology, Veterinary,Physiology, Animal Nutrition,Physiology, Animal Nutritional,Physiology, Veterinary Nutritional
D013552 Swine Any of various animals that constitute the family Suidae and comprise stout-bodied, short-legged omnivorous mammals with thick skin, usually covered with coarse bristles, a rather long mobile snout, and small tail. Included are the genera Babyrousa, Phacochoerus (wart hogs), and Sus, the latter containing the domestic pig (see SUS SCROFA). Phacochoerus,Pigs,Suidae,Warthogs,Wart Hogs,Hog, Wart,Hogs, Wart,Wart Hog

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