Formative Phases of Sheep.


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Improvement Stages of Lamb Digestive System. Conception - 3 weeks pre-ruminant3-8 weeks - psuedo ruminant8 weeks
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Formative Stages of Lambs Dr. Dan Morrical Iowa State University

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Development Stages of Lamb Digestive System Birth - 3 weeks pre-ruminant 3-8 weeks - psuedo ruminant 8 weeks & on - ruminant

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Birth: Solely subordinate on drain Composition of ewes drain: 18.2% dry matter 5-7% fat 24.7% unrefined protein 26.4% lactose 7.5 mg/lb Vit E 11 IU/lb Vit E

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Milk Yield and Composition Impact Lamb Performance •Higher drain fat prompts to build vitality admission •ISU crawl trials: 16, 21 & 26% CP No variety in execution •Megalac expands drain fat

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Creep Diets Palatable -Corn -Soybean dinner -Molasses Roughage is of insignificant esteem Lambs get sufficient roughage consumption from ewe diets

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Creep Diets •Easily absorbable •15-20% unrefined protein •Added fat

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Creep Ration Corn 1470 SBM 49% 370 Molasses 100 Limestone 40 TM salt 10 Ammonium sulfate 10 CTC 50 grams Selenium .2 grams Vitamin A 1,000,000 IU Vitamin D 100,000 IU Vitamin E 35,000 IU Zinc 136 grams Crude protein 16.7% TDN 83.4% Calcium .84% Phosphorous .38%

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Ration Physical Characterics Very youthful lambs Meal shape 3-8 weeks Medium granulate 8-12 weeks Coarse crush >12 weeks Whole grains

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Nutrient Requirements Factors : Sex Lean Growth Potential Weight

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Composition of Gain Rams Lambs Superior Wethers Intermediate Ewe Lambs Poorest

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Mature Size Lambs are market prepared at 65% of normal develop weight of ewes of parent breeds. 220 lb. sire + 180 lb. dam = 400 ÷ 2 = 200. 200 x .65% = 130.

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% Protein Concentration of Lamb Rations ADG Lamb Wt. .50 .60 .70 .80 40 15.9 17.0 18.6 20.4 55 13.4 14.7 15.8 16.9 70 12.8 13.9 14.7 15.5 85 12.0 12.7 13.4 14.3 100 11.4 11.9 12.6 13.3 115 10.8 11.4 11.9 12.5

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Protein Quantity and Quality Very youthful sheep - exclusively subject to bolster protein for quality and amount Ruminant - Protein quality relies on upon Feed starting point Bacterial birthplace

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Ruminant - Protein Quantity •Intake •Microbial yield -affected by vitality consumption -rumen smelling salts level -fluid weakening rate

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Rumen Bacteria Cellulolytic - Fiber digesters Amylolytic - Starch digesters Proteolytic - Bacterial protein digesters

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Lamb Intake Controlled by: Fill Energy Low focus diets - fill High think diets - vitality

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Specific Nutrients Vit E. 30,000 IU/ton Se .3 ppm Ca .48 P .24 Salt .5-1.0%

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What Type of Ration 1. Focused on showcasing date. 2. Relative expenses of supplements. 3. Compositional objective. 4. Office estimate. 5. Sustain handling gear & storage. 6. Sustaining framework.

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Simplest System Whole corn: Pelleted Protein Supplement. Points of interest: -Superior nourish productivity -Self encouraged -Low handling costs -Low cost slim down -Acidosis chance

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Simplest System... proceeded with Disadvantages: -Sorting -Slower picks up -Quality of protein supplement -Cash cost for protein

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High Hay Rations Advantages: -Minimal money expense -Value added to feed edit -Improved arrangement Disadvantages: -Lower ADG -More offices, bunks and pens -Hay squander

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Weaned Lamb Performance on Grass Factors - Forage Species Grass versus vegetables - Age of sheep - Health of sheep - Condition of sheep

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Lamb Gains on Straight Grass .20 - .25 pounds for each day .35 - .50 w/pound supplementation Conversion 1:10 t0 1:5

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Escape Protein for Pasture Lambs Sources: •Blood Meal •Fish Meal •Corn Gluten Meal

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Nursing Lamb Performance on Grass Milk Production is Key 1. Rotational touching a. high caliber and amount of search b. lessened rivalry between ewe & posterity 2. Crawl Feeding a. enhanced development b. permits coccidia control c. builds cost of creation

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