test 2 Flashcards
(18 cards)
The average body condition score (1-9) of a beef cow should be ____ at the time of calving.
5-6
Which of the following would be the most ideal supplement to feed a cow consuming a forage that contains 50% TDN and 10% crude protein?
Range cube (TDN= 80% CP=20%)
4:1 ratio –> 5:1 is ideal from question
Which of the following factors will not increase protein requirements in beef cows?
cold stress
How many of the following are legumes?
4: vetch, winter pea, alfalfa, red clover
Which of the following is a macromineral that may be detrimental to beef cows if the concentration in forages is too high?
sulfur
Which of the following is a common name for grass tetany in beef cattle?
wheat pasture poisoning
Which of the following feedstuffs are classified as carbonaceous concentrates?
(grains) corn grain and wheat middlings
Bermudagrass hay harvested in August will have a ___ concentration of fiber carbohydrate and a ____ concentration of protein compared to bermudagrass hay harvested in July.
Higher; Lower
Which of the following forage toxicity problems is associated with the inability of hemoglobin to carry sufficient oxygen thus causing death in cattle by anoxia?
nitrate toxicity
How many of the following feedstuffs are classified as proteinaceous concentrates?
(meals) 6: corn gluten meal, cottonseed meal, fish meal, flaxseed meal, red clover?, ?
Which of the following forage toxicity problems can be prevented by shredding the top portion of the forage (ex: shred pasture about 8” high)?
dallisgrass poisoning
Which of the following is the causative agent for pulmonary emphysemia (fog fever or lungers) in beef cattle?
3-methylindole
Replacement heifers that are managed to produce their first calf at 2 years of age should weigh ____% of their mature body size at the start of breeding season.
60-65
processing carbonaceous concentrate feed (steam flaking) like corn grain will cause digestibility in beef cattle to ____.
increase
Which of the following forages are classified as warm-season grasses?
kleingrass and dallisgrass
Which of the following forages is a trace mineral that if deficient in beef cows during late gestation will impair passive immunity transfer to newborn calves?
selenium
During which of the following production periods will net energy requirements of beef cows be the lowest?
weaning to start of last trimester
Which of the following forage toxicity problems will negatively affect both horses and beef cattle?
dallisgrass poisoning
