ANSI 3653 Exam 2| 119 Questions And Answers Verified 100% Correct!!

An important principle of grazing management is the maintenance of immature plants for greater dry matter consumption over time. Bermudagrass can be managed to keep the plant in a vegetative, immature state for grazing purposes. What is the term used to describe the grazing management process used with bermudagrass to keep the forage in a young, vegetative, immature state. An example was presented in class. Discuss this example of bermudagrass forage management. - - Rotational grazing - Rotating where cattle graze to gives forage time to grow back - Can increase carrying capacity by 25-40% - Withstands overgrazing better than most An important principle of grazing management is the maintenance of immature plants for greater dry matter consumption over time. Bermudagrass can be managed to keep the plant in a vegetative, immature state for grazing purposes. What is the term used to describe the grazing management process used with bermudagrass to keep the forage in a young, vegetative, immature state. An example was presented in class. Discuss this example of bermudagrass forage management. - - Rotational grazing - Can increase carrying capacity by 25-40% **Withstands overgrazing better than most Explain prussic acid poisoning. What are characteristic symptoms? - - Ingestion of plants containing hydrocyanic (prussic) acid Symptoms - Excessive salvation rapid breathing, spasms - Rapid development of symptoms (10-15min.) - Animal suffocates!! - Dead animals with no apparent symptomsWhat levels of nitrate in the forage is considered safe? What is the level of nitrates in forages that is considered dangerous? - - less than 2500 ppm = safe - ppm = caution - ppm = danger - greater than 15000 ppm = toxic What is the meaning of the term cool season forage? Name two examples of cool season forages. Plot a typical forage quality chart from January to December for fescue in Oklahoma. - - Grows in fall, winter and early spring - Fescue - Brome A producer is feeding a group of late gestating beef cows grazing dormant winter forage. Abundant grass is available to allow ample consumption of forage, but due to the poor nutrient content of the forage numerous deficiencies are anticipated. The cows are acceptable in body condition. 1. What nutrient is of greatest concern? 2. Is this a substitution or supplementation issue? 3. Which of the following feeds would you use? Explain. a. 38% CP, 71% TDN consisting of 84% soybean meal and 4% corn gluten feed plus added ingredients - $525/ton b. 30% CP, 73% TDN consisting of 63% cottonseed meal and 24% corn gluten feed plus added ingredients - $435/ton c. 25% CP with no more than 17% CPE from NPN, 65% TDN Tub consisting of 58% molasses, 22% cottonseed meal, 5.9% urea and added fat, minerals and vitamins - $875/ton d. 20% CP, 75% TDN consisting of 50% corn and 40% cottonseed meal plus added ingredients - $380/ton e. - 1. Protein 2. Supplement 3. a. 38% CP, 71% TDN, $525/ton, because protein supplement is determined by cost per lb. CP and should be 30-40% CPWheat or small grain pasture is very important to livestock producers in Oklahoma. Wheat or small grain pasture is a cool season variety forage that is vegetative from late fall through the winter and early spring providing valuable grazing for animals that would typically be grazing dormant, weathered, mature warm season grasses. However, animals grazing wheat pasture are susceptible to grass tetany as well as bloat. What can be done nutritionally to help prevent these two non-infectious disorders? - - Grass Tetany: Supplement Magnesium - Bloat: Antifoaming agents (Poloxalene) Name and briefly discuss four factors that can affect hay quality during and after the harvesting process. - Shattering of Leaves - up to 8% loss for grass hays (5% normal) - up to 40% loss for legume hays (20% normal) Heat Damage - 25-30% moisture promotes mold growth in hay - High moisture produces heat - > 120 F, nutrient destruction & binding - > 160 F, danger of spontaneous combustion Bleaching - Color loss caused by sunlight - Reduces carotene or vitamin A activity Leaching Due to Rainfall - Loss of nutrients - Reduction of hay quality What is the primary objective of making hay or silages from forages? - Preservation of high quality forages for later useHay is sun dried to more than 85% dry matter before baling and storage in a barn. Why? - Remove water reduce the possibility of mold, hay fires, ect.