NRCExercises - 1250 lb mature weight. 2 way cross (Brangus...

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Advanced Ruminant Nutrition NRC Exercises Lactating Beef Cow 4 yr old Brangus cow, body condition=4, BW=1150 lb, Mature BW=1175 lb, not bred yet, 30 days after calving, 73lb calf birth weigth. Fed in the drylot. Wind=5mph, Temps=70 F, night cooling, hair depth=0.5in, average hide. Feeds: Bahiagrass hay (102), Molasses (421), Corn gluten feed (505), Soybean hulls (607), Urea (522),Wet brewers grains (501) Work through each ration example, fill in the table. Item Bahiagrass hay only Hay + 5 lb Molasses Hay + 5 lb CGF Hay + 5 lb SBH Predicted DMI, lb/d Met. Protein Bal, g/d DIP balance, g/d Day to BCS change, +/- NE Balance Maintenance Pregnancy Lactation Gain Total Diet TDN Diet CP MP Bacteria MP UIP Cost $/day 1. What is wrong with each ration?
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2. What could be changed to fix the ration? 3. What happens when temperature is dropped 20 degrees? Feedlot Steer 10 month old steer that is 800 lbs and 5 BCS.
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Unformatted text preview: 1250 lb mature weight. 2 way cross (Brangus dam, Charolais sire). 10 mph wind, 60/30 F temperature, with night cooling. Feeds: Steam Flaked Corn (411), Cottonseed hulls (609), Soybean meal (518), Urea (522), Wet Distillers Grains (514), Ground Corn grain (409), Ground Corn Cobs (303) Item Southern Plains Upper Midwest Steam Flake Corn 68.5% Cottonseed hulls 15.5% SBM 14.9% Urea 1.1% Wet Distillers Grains 36.4% Ground Corn Cobs 6.0% Ground Corn 57.6% Predicted DMI, lb/d Met. Protein Bal, g/d DIP balance, g/d Predicted ADG, lb/d Diet Energy, mcal/lb Maintenance Gain Diet TDN Diet CP What happens when: 1. An ionophore is included in either diet. 2. An implant is utilized for the steer. 3. Both and ionophore and implant are utilized. 4. Hair coat is wet and matted? 5. Moderate heat stress is applied?...
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This note was uploaded on 09/19/2011 for the course ANS 5446 taught by Professor Brown during the Spring '08 term at University of Florida.

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NRCExercises - 1250 lb mature weight. 2 way cross (Brangus...

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