exam Flashcards
the proper calcium to phosphorus ration is
2:1
when rumen unprotected fats are added to dairy cattle rations, which minerals should be supplemented?
calcium and phosphorus
a producer is feeding 21 silage to his cow daily. the dry matter content is 30%. how much dry matter is being fed daily?
6.3
atleast 2 or 3 pastures are needed in this system
intensive-management grazing
the following are considered a by product feed
wheat feed
soy hulls
broiler litter
EXCEPT
fat
nutrients (carbo, proteins, fats) are digestion and absorption most complex and most efficient?
carbohydrate and fat
the amount energy that feed provides is represented as total digestible nutrients (TDN)
true
in ruminant livestock, protein quantity is generally more important than protein quality
true
it is a metabolic disorder that usually occurs during the last 6 weeks of gestation
pregnancy toxemia
is the time between parturition and the time cows are allowed to be inseminated
4-16 hours
percentage of pf rumen escape (by pass) protein?
urea
in ruminants what is the primary source of glucose?
propionate
sheep require a higher level of copper in their diet than goats do
T or F
true
which of the following nutrients is considered the most expensive
protein
the feed digestibility generally increases as crude fiber content increases
T or F
true
nutrient maintenance requirements increase as the level of the animals activity decreases
T or F
true
the recommended bull to open cow ratio
1 bull: 20-30 females
which of the following provides approximately 2.25 times the amount of energy per unit of weight
fat
deficiencies, excesses and imbalances of vitamins and mineral can limit animal performance and lead to various health problems
T or F
True
as pasture plants matures, palatability and digestibility decline, thus it is important to rotate pastures to keep plants in a vegetative state
T or F
true
it requires subdividing the land into paddocks, providing access to water, adjusting stocking rates and monitoring grazing duration
management-intensive grazing
in this graving system, animals are moved to a new in no specific order and pastures are grazed when they are producing the most readily
rest rotation grazing system
floor space requirement for ewes
10 to 14 sq. feet
resistant to fermentative digestion in rumen?
cellulose
hay tends to be a moderate source of protein and energy for sleep and goats
T or F
true
the volume of milk produced is determind mainly by the mammary glands uptake of
amino acids
it is important to rotate pastures to keep plants in a vegetative state, it is because as pasture plants mature, palatability and digestibility improves.
T or F
true
grains tend to high in phosphorus and low in calcium
T or F
true
which of the following is not a normal end product of carbohydrate fermentation in the rumen
carbon dioxide
limestone containing 36% calcium should be fed?
0.036 kg
it is very unlikely that the same diet cam be fed to sheep and goats without risking copper toxicity in the goats or a copper deficiencies in thr sheep
T or F
true
developing a pasture and grazing management system for livestock requires planning as well as an understanding of
grazing system
which of the following compounds are source of carbohydrates?
starch
it is the primary source of nutrients for small ruminants during the winter or non-grazing season
hay
a disease caused by a lack of calcium in the blood whichmay occur shortly after kidding, or it may occur a month or so later in the lactation period.
hypocalcemia
