9. If you changed the diet of a dairy cow from a diet containing a 60% forage +
ID: 266003 • Letter: 9
Question
9. If you changed the diet of a dairy cow from a diet containing a 60% forage + 40% grain to a diet containing 40% forage + 60% grain, which of the following would most likely occur? A. a decrease in milk volume, but an increase in milk fat percentage B. an increase in milk volume, but a decrease in milk fat percentage C. a decrease in both milk volume and milk fat percentage D. an increase in both milk volume and milk fat percentage E. no change in milk volume or milk fat percentage 10. Which of the following is most likely to occur in a dairy cow shortly after calving due to the drastic increase in calcium requirements associated with the onset of lactation? A. Ketosis B. Milk Fever C. Grass Tetany D. Hardware Disease E. None of the above 11. Grain supplementation to grazing cattle should be limited to no more than percent of the animal's body weight daily to avoid depressing digestibility of the forage A. 0.2 B. 0.5 C. 1.0 D. 3.0 E. 5.0 12. Increasing the energy intake of a replacement ewe before breeding in an effort to improve reproductive success is known as: A. Flushing B. Challenge feeding C. Creep feeding D. Preconditioning E. A waste of money 13. Challenge or Lead feeding in dairy cows refers to A. leading the cows to the feed bunk B. feeding high amounts of grain during the dry period C. increasing the amount of grain fed as long as milk production continues to increase D. feeding more grain at the end of lactation before entering the dry period E. feeding additional dietary protein to stimulate bacterial protein synthesis in the rumen 14. When feeding urea in the diet of ruminants, the N:S ratio should be kept ator less A. 2:1 B. 5:1 C. 10:1 D. 20:1 E. 50:1 15. In order to decrease the incidence of milk fever, which of the following should NOT be fed to a dairy cow during the dry period? A. Corn silage B. Alfalfa hay C. Molasses D. Cottonseed meal E. Beet pulp 16. Adding .5% ammonium chloride to the diet of a feedlot lamb will help to prevent development of: A. a protein deficiency B. Enterotoxemia C. Urinary Calculi D. Foot Rot E. LaminitisExplanation / Answer
9.
The correct option is (D) as more grain diet will increase both milk volume and milk fat percentage.
10.
The correct option is (B) as cow usually faces milk fever due to the decreased calcium level.
11.
The correct option is (C).
12.
The correct option is (B).
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