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ANS 319 TEST 1 STUDY SET
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ANS 319 TEST 1 STUDY SET...
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ANS 319 TEST 1 STUDY SETT or F: Photosynthesis is the process by which plants convert solar
energy, CO2, and H2O into a simple carbohydrate - ANSWER True
T or F: Ruminant animals have four stomachs. - ANSWER True
T or F: When converting from dry matter to as-fed, the percentage of
crude fibre should decrease but the percentage of crude protein should
increase. - ANSWER False
T or F: From an animal nutrition perspective, alfalfa should be harvested
for maximum forage yield and digestibility should not be considered. -
ANSWER False
T or F: Grasses and legumes are two families of cultivated forages. -
ANSWER True
T or F: From a nutrition perspective, the plant leaf is usually more
nutrient-dense and more digestible than the plant stalk. - ANSWER
True
T or F: Roughly 80% of feces on a DM basis is comprised of microbes -
ANSWER True
T or F: Pigs are omnivores animals. - ANSWER True
T or F: Only ruminants can be classified as foregut fermenters. -
ANSWER False: kangaroo, hippo, monkey are non-ruminants
T or F: The smallest amount of interspecies variation within the
gastrointestinal track typically occurs in the small intestine. - ANSWER
True
Cellulose is an example of a polysaccharide made up of repeating units
of ____ - ANSWER glucose
, An example of a macronutrient that is essential to monogastric animals
is ___ and ___ is an example of a macronutrient that is not required by
monogastrics. - ANSWER protein
carbohydrates
Corn hulls are primarily composed of fiber while the endosperm of corn
grain is primarily composed of ___ - ANSWER starch
___ is a hormone secreted by G-cells in the stomach that stimulates HCl
and pepsinogen secretion - ANSWER Gastrin
Humans can sometimes choke on food, this is because the food bolus
gets lodged in the ___ instead of going down the ___. - ANSWER
trachea
esophagus
Fill in the energy contents:
Fat = ___ kcal/gram
Protein = ___ kcal/gram
Lipids = ___ kcal/gram - ANSWER 9
4
9
The three volatile fatty acids produced during rumen microbial
fermentation are ___, ___, and ___. - ANSWER acetate, propionate,
butyrate
___ and ___ are two animals that are classified as cecal digestors. -
ANSWER rabbit
rat
Starch is broken down by ___ bacteria in rumen. - ANSWER amylolytic
The pH in the small intestine is rapidly increased because of ___ which
is synthesized and secreted by this organ ___. - ANSWER insulin
pancreas
The nutritive value of a forage is mostly determined by its:
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