TAMU ANSC 107 - Nutrients and Feedstuffs I (7 pages)

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Nutrients and Feedstuffs I

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Nutrients and Feedstuffs I


Lecture number:
Lecture Note
Texas A&M University
Ansc 107 - General Animal Science

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ANSC 107 1nd Edition Lecture 21 Outline of previous lecture I Digestion a Monogastric b Ruminant II Urea cycle Outline of current lecture I Nutrition II Water III Lipids IV VFA V Carbs VI Vitamins a A D E K B Thiamin Current lecture 1 Nutrition a The study of how the body uses nutrients in feed to sustain life and for productive purposes b 50 80 of total cost in livestock production is feed related 2 Nutrient a A component of feed that aids in the support of life 3 Feed a Any material after ingestion by the animal is capable of being digested absorbed and utilized b Not all feed is utilized i If it was true we would have 100 efficient 4 Maintenance These notes represent a detailed interpretation of the professor s lecture GradeBuddy is best used as a supplement to your own notes not as a substitute a What to consume to maintain body weight 5 Diet a What feeding 6 Ad libitum a Buffet 7 Limit fed a Limited on what you can eat 8 Components of animals feed a Water b Dry matter i Inorganic matter ii Organic matter 1 Carbohydrates 2 Lipids 3 Protein 4 Vitamins 9 Water a Function i Transportation of nutrients and metabolic waste ii Chemical reaction iii Regulation of body temperature b Sources i Drinking water ii Water in feed 1 30 is water iii Metabolic water 1 Chemical reaction 10 Routes of water loss a Urine b Feces c Vaporization from lungs and dissipation through the skin d Sweat through sweat glands 11 Factor affecting water intake a Temperature i Hot drink more b Feed type i Dryer feed more water need c Pasture d Water type quality good vs bad e Stage of production i Most water intake is during lactation 12 Protein a Contains carbon hydrogen oxygen and NITROGEN b Structures of proteins i Composed of amino acid c Expensive to feed d Need declines with age 13 High quality proteins a Contains complete balance of essential amino acids b Animal protein is high quality c Plant protein are not always high quality d Microbial protein has always been assumed to be balanced

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