Feeds and feeding exam 2 study guide
Feeds and feeding exam 2 study guide ANSC 3232
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This 4 page Study Guide was uploaded by Dragon Note on Monday April 11, 2016. The Study Guide belongs to ANSC 3232 at University of Missouri - Columbia taught by Dr. Meyer in Spring 2016. Since its upload, it has received 147 views. For similar materials see Feeds and Feeding in Animal Science and Zoology at University of Missouri - Columbia.
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Date Created: 04/11/16
1. How do plant and animal proteins compare overall? 2. What are the major nutritional characteristics of each protein source type discussed? 3. What are the main protein sources used? Why? 4. Why are animal proteins used? 5. How and why are NPN sources used? 6. Why do we feed cereal grains to livestock and other animals? 7. Know the nutrient composition of corn. 8. What do common cereal grains have in common? a. How do they differ? b. How do these compare with corn? 9. What are other high starch feedstuff options? 10. What is soluble fiber? a. Why do we feed it? To what animals? 11. How do common high soluble fiber co-products compare to one-another? a. Positives and negatives 12. What are some concerns with feeding high soluble fiber co-products? 13. What are associative effects? 14. What are examples of associative effects? 15. When/why do we feed molasses? (Nutritional reasons and Non-nutritional reasons) 16. What nutrients do milk co-products contain? 17. When/why do we feed high fat feedstuffs? 18. What high sugar and high fat feedstuffs are available for use in livestock feeds? 19. What is the correct order for balancing rations as we discussed in class? 20. What is the most used protein feed for livestock? 21. What is the common name for the disease that results from sheep and goats eating an excess of carbohydrates? 22. What can poorly fermented silage cause? 23. How does tannins decrease grazing animal performance? 24. What cereal grain has the least CP 25. What cereal grain has the highest energy for non-ruminants? 26. What is phytate? 27. When are NPN sources such as urea or biuret likely to cause ammonia (or urea) toxicity? 28. Can urea be fed to non-ruminant animals? 29. Why do we feed much less synthetic AA to ruminant livestock? 30. What do we mean by "soluble fiber"? 31. Why might fibrous co-products be included in pet foods? 32. Why do we pellet high fiber so products? 33. What is the most variable in nutrient composition and parent grain components? 34. What animals are bakery and potato co-products and waste fed to? 35. What are some examples of high starch feedstuff? 36. Milk co-products such as whey and lactose primarily provide what in the diet? 37. If a lactating dairy cow requires 16.9% CP (DM basis) when DMI is 12.0 kg, what is her daily CP requirement (kg/day)? 38. If a mid-gestation beef cow requires 0.38 Mcal NE /lb when DMI is 24.0 lb, what is her daily NE m m requirement (Mcal NE mday)? 39. If a growing horse requires 1015 g CP/d, and you want to deliver this in 14 lb DM/day of hay, what is the necessary % CP (DM basis) of the ration? 40. If you need to supply an additional 5.2 Mcal ME/d to a late gestation beef cow, and want to do this in a 2 lb/hd/day supplement, what is the necessary Mcal/lb of the supplement? 41. Balance a diet for 910 lb steer, finish weight of 1300 lb, ADG of 3.21 Ingredient % DM % CP NEm, NEg, % Ca % P (DM) % in diet (DM) Mcal/kg Mcal/kg (DM) (DM) (DM) (DM) Corn 89 9.1 2.24 1.55 0.02 0.35 SBM 90 47.2 2.06 1.4 0.33 0.71 Dicalcium 94 - - - 19 22 phosphate Limestone 94 - - - 34 - Nutrient x 10.7 1.67 1.06 0.39 0.2 density required 42. ingredient % DM % CP NEm, NEg, % Ca % P % in Mcal/kg Mcal/kg ration (DM) High 72 10.7 2.33 1.62 0.02 0.32 moisture corn SBM 89 49.9 2.06 1.4 0.33 0.71 Grass hay 88 9.5 0.75 0.2 0.4 0.3 5 Mineral 93 - - - 17 - 1.5 mix Dicalcium 94 - - - 19 22 phosphate limestone 94 - - - 34 - Nutrient - 13.7 1.98 1.34 0.52 0.26 density necessary 43. 1200lb cow DM basis Poor TF hay (70% NDF) Alfalfa hay (45% NDF) 2% BW, lb DMI 1.2% NDF, lb DMI 1.2% NDF as a % BW 44. 1200 lb cow in early lactation consuming poor quality tall fescue hay (70% NDF, 7.2% CP, 0.9 Mcal/kg) 2.83 cp/day 16.3 Mcal NEm/d. How many pounds AF of shelled corn (9.5% CP, 2.18 NEm, Mcal/kg, 90%DM) would she need to meet these needs? Key 1. Animal proteins have more appropriate AA profile, no true fiber in animals, greater RUP in animal protein 2. Oilseeds meals: 35% CP, 90% true protein, high in lysine, anti-nutritional factors. Soybean meal: 44% CP, High lysine low Met, best plant protein source. Mill feeds: low CP, high fiber, low lysine, high Met. 3. The main protein sources used are soybean mean and fish meal because they are the most readily available sources. 4. Animal proteins have a more appropriate AA profile 5. NPN is used for ruminants for microbes to build amino acids or utilize urease 6. Moderate vitamin E, contains P, starch- energy 7. 72% starch, low niacin, zinc, low in Lys and Trp, 46% RDP 8. High in starch a. CP, energy, fiber, RDP b. Not as palatable, less starch, increased CP 9. Barley, oats, wheat, milo, rye, triticale 10. A fiber that is easy to digest and is highly soluble a. Ruminants: more fiber and energy, fill, associative effects Non ruminants: decrease nutrient density and improves fecal consistancy 11. Moderate CP, low Niacin, higher Ca than parent product 12. Highly variable 13. Animal performance from a combination of feedstuffs is different from that expected from adding the individual feedstuffs 14. Positive associative effects: soy hulls + tall fescue hay Negative associative effects: corn + tall fescue hay 15. Conditioner- controlling dust, keep feed together, Palatability, Pellet binder, Feed additive vehicle, minerals + vitamins, Liquid supplement base- ruminant supplement, add energy 16. Proteins, lactose and minerals 17. Add energy to diet 18. Bakery wastes, candy waste, milk co products, tallow, grease, vegetable oils 19. Protein, Energy, P, Ca 20. Oilseed 21. Overeating disease 22. Neurologic disease 23. Decreased palatability 24. Corn 25. Corn 26. A P-containing compound that is lowly digestible for non-ruminants 27. When animals graze a pasture or field that was fertilized with N too soon, when feed containing these is not mixed thoroughly enough 28. No 29. Rumen microbes degrade AA in feed unless they are "protected" 30. Digestible fiber 31. Improved fecal consistency, Decrease nutrient density for weight control formulas 32. They are bulky and low density 33. Fines 34. Ruminants 35. Barley, potatoes, bread waste 36. Non-fiber carbohydrates 37. 2.03kg CP/day 38. 9.12 Mcal/day 39. 16% 40. 2.6 Mcal/day 41. % in diet 93.1 4.9 0 2 100% 42. % in diet 83.63 8.8 - - 0 1.07 100 43. 24 lb DM 24 lb 20.5 32.04 1.71 2.67 44. 15.9 lb
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