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Applied Nutrition

Applied Nutrition . Andrew Granger LSU AgCenter. Nutrition Defined. Match requirements to feed Nutrients Carbohydrate, protein, minerals, vitamins, etc. Requirements Stage of production, work Feeds Concentrates, roughages, protein, carbohydrate. Ruminant vs. Nonruminant.

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Applied Nutrition

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  1. Applied Nutrition Andrew Granger LSU AgCenter

  2. Nutrition Defined • Match requirements to feed • Nutrients • Carbohydrate, protein, minerals, vitamins, etc. • Requirements • Stage of production, work • Feeds • Concentrates, roughages, protein, carbohydrate

  3. Ruminant vs. Nonruminant • Rumen = microbes • Starch vs. Cellulose • Function • Absorption of nutrients

  4. Nutrients • Protein – amino acids • Carbohydrate – starch, cellulose • Fat – linoleic, linolenic, arachidonic • Vitamins – fat soluble, water soluble • Minerals – inorganic elements • Water

  5. Animal Requirements • Body Weight • Growth • Lactation • Gestation • Work • Stress • Cold, Heat, Parasites, Disease

  6. Growth • Protein • 21% for baby pigs, 18% 40 to 100 lbs, 16% 100 to 200, 14% 200 to 250 • Energy • 400 lb. heifer – 77% TDN • 700 lb. heifer – 77% TDN • Rate of Gain • 400 lb bull • 1.5lbs/d – 61.5%TDN • 2.5lbs/d – 70% TDN

  7. Requirements • 500 lb. growing heifer • Intake – 12 lbs. • Protein – 1.25 lbs. • TDN – 8.2 lbs. • 1.25/12=10.5%

  8. Intake • Beef Cattle – 2.5% of BW • Sheep and Goats – 4% of BW • Hogs • 40lbs – 2 lbs • 100lbs – 4lbs • 185lbs – 7lbs

  9. Feeds • Concentrates • Grains • Roughages • Hay and pasture • Protein • Soybean meal, alfalfa • Energy • Corn, bermudagrass

  10. Feeds • Corn – 90% TDN, 10% CP • Soybean Meal – 84% TDN, 48% CP • Sorghum – 84% TDN, 10% CP • Bermuda Hay – 52% TDN, 9% CP • Alfalfa Hay – 60% TDN, 20% CP

  11. Feeds • Sweet Feeds • Pellets • Feed Tags • TDN = 81.41 - (0.6 x CF)

  12. Matching = Math • Growing Heifer = 8.2 lbs of TDN • Corn = 90% TDN • So 8.2/.9 = 9lbs of corn/day • 150 lb pig = 10,000 Kcals/day • Corn 1600Kcals/lb • 10000/1600 = 6.25lbs of corn/day • Pierson's Square

  13. Feeding practices • Consistency • Time, quantity and quality • Changes • Introduction • Magic formulas • Water

  14. Problems • Copper • Urinary calculi • Acidosis • Scours

  15. Summary • Nutrition • Anatomy • Nutrients • Requirements • Feeds • Matching • Feeding practices • Related problems

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