Applied Nutrition
description
Transcript of 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
Rumen = microbes Starch vs. Cellulose Function Absorption of nutrients
Nutrients
Protein – amino acids Carbohydrate – starch, cellulose Fat – linoleic, linolenic, arachidonic Vitamins – fat soluble, water soluble Minerals – inorganic elements Water
Animal Requirements
Body Weight Growth Lactation Gestation Work Stress
Cold, Heat, Parasites, Disease
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
Requirements
500 lb. growing heifer Intake – 12 lbs. Protein – 1.25 lbs. TDN – 8.2 lbs.
1.25/12=10.5%
Intake
Beef Cattle – 2.5% of BW Sheep and Goats – 4% of BW Hogs
40lbs – 2 lbs 100lbs – 4lbs 185lbs – 7lbs
Feeds
Concentrates Grains
Roughages Hay and pasture
Protein Soybean meal, alfalfa
Energy Corn, bermudagrass
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
Feeds
Sweet Feeds Pellets Feed Tags TDN = 81.41 - (0.6 x CF)
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
Feeding practices
Consistency Time, quantity and quality
Changes Introduction Magic formulas Water
Problems
Copper Urinary calculi Acidosis Scours
Summary
Nutrition Anatomy Nutrients Requirements Feeds Matching Feeding practices Related problems