TAMU ANSC 107 - Nutritional Requirements (11 pages)

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Nutritional Requirements

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Nutritional Requirements


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

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ANSC 107 1nd Edition Lecture 22 Outline of previous lecture I Nutrition II Water III Lipids IV VFA V Carbs VI Vitamins a A D E K B Thiamin Outline of current lecture I Nutrition and feedstuf II Nutritional requirements Current lecture 1 Thiamin a Vitamin b1 is found in whole grain and starchy roots b Coenzymes A needed in krebs cycle c Disease in ruminant 2 Minerals a Macro Minerals i Calcium ii Potassium iii Phosphorus iv Magnesium v Sodium vi Sulfur 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 vii Chorine b Micro Minerals i Iron ii Iodine iii Manganese iv Copper v Cobalt vi Zinc vii Molybdenum viii Selenium ix Chromium 3 Salt a Mature animal consume 25 50 oz a day b Provide free choice c Can provide complete mineral package or just salt d Good way to get animals medicated i Salt block e Need cause influences on water f Salt is usually fed by free choice 4 Calcium and phosphorus a Interrelated in the development of skeleton b Ca metabolic problems develop rapidly i Tetany and urinary calculi 1 Tetany is stifness ii Normal ratio of 2 1 Ca P c Forages are high in Ca low in P i Alfalfa is high in Ca ii Add dicalcium phosphate 1 1 or limestone d Grains are low in Ca and high in P i More likely to see urinary calculi ii Depends on type of grain in diet 1 Corn vs milo area where grown iii Can use dicalcium phosphate free choice in ewes to prevent problems 5 Magnesium MACRO a Skeletal maintenance and enzymes systems enzyme breaks down feed stuf i Grass tetany is most common problem 1 Lush pastures with fast growing forage SPRING 2 Low blood Mg 3 Convulsion salivation frothing at the mouth ii Mg requirements are 15 diet iii Spring grass that is low Mg and high K heavily fertilized with N causes problems 6 Potassium a Intracellular fluid osmotic pressure b Low K causes listlessness and stifness c Grazing animals rarely have problem i Unless grazing mature or droughty

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