exam 5 practice exam Flashcards
Grinding is one of the most important operations in the feed mill. Grinding is done to
maintain the desired physical characteristics of feed
improve the efficiency of pelleting
achieve proper/uniform size
in the roller mill operation, the grind size is determined by
number of roll pairs
roll gap
roll speed
corrugations
corrugation number
receiving center equipment includes
scales
unloading mechanism
receiving hopper/conveyors
cleaning/screening devices
elevator legs
causes of weighing variations include
hand-weighing
dose errors
discrepancies between call size and scale resolution
mixer uniformity that is classified as good
10-15
compared to roller technology, hammer mill technology is suitable to handle
friable material
high fiber material
moisture
any worker that is in the ingredients receiving center needs to know about
unprocessed grains
processes bulk ingredients
soft feed ingredients
heavy feed ingredients
liquids
micro-ingredients
Major processes of feed manufacturing include
receive ingredients
grinding
batching/mix
conditioning/pelleting
There are various methods that can be lawfully used to reduce the aflatoxin level of a feed material except
blending
factors that contribute to aflatoxin
water stress
insect damage
soil fertility
grain humidity
late planting
plant variety/density
mycotoxins are _______________________ of fungus
secondary metabolites
rhodopsin is associated with what vitamin
vitamin A
deficiency of this vitamin causes crazy chick disease
vitamin E
This vitamin is important because of its involvement with protein metabolism
pyridoxine
this deficiency results in megaloblastic anemia in pregnant women whose diets consisted of white rice and bread
folic acid
deficiency of this vitamin results in convulsions and seizures
pyridoxine
the fragility of capillaries resulting in hemorrhages is a result of what deficiency
vitamin C
intrinsic factor is secreted in this section of digestional tract
stomach
ascorbic acid can be synthesized from
glucose
the dietary level of this amino acid will greatly influence the quality of choline
methionine
the amino acids that are liberated from protein hydrolysates and primarily alpha-amino acids. This means
carboxyl and amino groups are attached to the same carbon atom
how many elements are found in a typical protein
4 (C,H,O,N)
this amino acids is involved in general metabolic rate in the body
tyrosine
which of the following amino acids is not likely to be deficient in a typical diet of pigs/poultry
alanine
this mineral is not normally supplemented in pigs
sulfur
the difference between apparent ileal N digestibility and standardized ileal N digestibility
Standardized ileal N.digestibility is corrected for both the basal and diet-induced ileal endogenous N losses
the enzyme that catalysis the shifting of a functional group from one positive io another within the same molecule
mutase
you were asked to formulate a diet for a piglet, which form of monosaccharides would include at the highest level in the diet
glucose
inulin, carb found in onions, garlic, is a polymer of
fructose units
Raffinose is an example of a trisaccharide. describe the products of complete digestion of raffinose
1 glucose
1 fructose
1 galactose
pentose include all but: xylose, arabinose, ribose or mannose
mannose
this peptide hormone is produced in duodenal mucosa and contracts the gallbladder and pancreas
CCK
which species has the highest glucose level
chicken
section at the base of two vili where you have the youngest cells
crypt
in a mature cow, _____ is the largest and ______ is the smallest in volume
rumen
reticulum
what source of alfalfa would be expected to have the highest level of relative feed value
alfalfa pre-bud
pH of digesta in this section of the foregut of a cow is the lowest
abomasum
does a stem have more or less dry matter compared to leaf
more
the specific discipline that has contributed the most to our understanding of nutrition is
chemistry
most of the lipids in the diets of ruminant are hydrolyzed in
bile salts
unsaturated fatty acids has the tendency to become saturated. In the presence of excess levels of hydrogen and oxygen, the preference will be for the unsaturated fatty acid to add
oxygen
as early as 3000BC, secientist from ______ prescribed a good source of iodine to treat goiter
china
a combination of feedstuff
diet
aflotoxin is one of the predominant mycotoxin that is found in livestock feed ingredients, especially cereal grains. What feed additive is routinely added to feed to reduce the effect of this toxin on the GI health of the animal
bentonite
mineral clays
