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An Sci Semester Final
Test 1
42
Agriculture
Undergraduate 1
11/28/2012

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Cards

Term
Consumption of what species is growing the fastest?
Definition
chicken
Term
What happens to most milk in the world?
Definition
It's processed into cheese.
Term
List two non-food byproducts of meat animal slaughter?
Definition
Hides and medicines
Term
List and explain one example of how animals contribute to human health care or medical research?
Definition
Animals are experimented on in lab settings to develop cures or test medicines.
Term
List and explain 2 types of stress livestock experience.
Definition
Climatic - temperature change causes stress.
Social - the animals around them cause stress.
Nutritional - animals might not be getting the nutrients they need.
Internal
Term
List six nutrients.
Definition
water, carbohydrates, protein, lipids, vitamins, minerals
Term
List the three forestomachs of ruminant livestock?
Definition
Rumen, reticulum, omasum
Term
What is the major site of microbial fermentation in the ruminant animal?
Definition
the rumen
Term
The first limiting amino acid in pig diets is...
Definition
Lysine
Term
The first limiting amino acid in poultry diets is...
Definition
Methionine
Term
Digestibility def
Definition
The degree to which a substance can be broken down and absorbed by the digestive tract of the body.
Term
The major site of water absorption in cats and dogs
Definition
the large intestine
Term
Horses cannot do what? and this causes what?
Definition
Horses can't vomit which causes gastric upset or colic.
Term
What does fermentation produce?
Definition
Microbial protein
Term
The concept of first limiting amino acids are usually not of concern for what?
Definition
Sheep and beef cattle nutrition
Term
Discuss what gastric torsion is and strategies to avoid its occurrence in dogs.
Definition
Gastric torsion is twisting of the stomach. It can be prevented by feeding multiple small meals and always having water available. Happens mostly in large breeds.
Term
Describe what happens when a cow experiences frothy bloat.
Definition
There is a bulge on the left side, and the cow can't eructate.
Term
List and explain a couple of strategies to prevent frothy bloat.
Definition
Do not turn out livestock first thing in the morning, make sure they have hay, and roll or crack their grain.
Term
What is reticular groove, and why is it a good thing for a newborn lamb to have?
Definition
It's a flap of skin separating the rumen from the esophagus. It's good because milk would not be digested properly by the rumen.
Term
Feedstuff
Definition
any substance used as animal feed
Term
Silage
Definition
feed stored under anaerobic conditions
Term
Micturition
Definition
the act of urinating
Term
Cecotrophy
Definition
the process by which mucus covered soft pellets are expelled from the intestine and consumed by animals such as rabbits and guinea pigs.
Term
Forage
Definition
Fiber rich feedstuff (> or = to 18% crude fiber) with highly digestible energy value
Term
Weathering
Definition
loss of nutrients in a feed through exposure to the elements
Term
Ruminant animal
Definition
hooved animals that have a rumen and chew their cud.
Term
Stover
Definition
Parts of the plant left after grain harvest
Term
Nutrient
Definition
a substance in the diet that supports the normal functions of the body
Term
Papillae
Definition
small fingerlike projections that greatly increase the surface area of the gastrointestinal tract
Term
Symbiosis
Definition
dissimilar organisms living together or in close association to the mutual benefit of both organisms
Term
Genetics
Definition
the science of heredity and the variation of inherited characteristics
Term
Physiology
Definition
The study of physical and chemical processes of an animal or any of the body systems or cells of the body
Term
Grading Up
Definition
the process of improving a livestock by consecutive matings with genetically superior animals
Term
Adaptation
Definition
The sum of the changes an animal makes in response to environmental stimuli
Term
Domestic animal
Definition
Species of animal controlled by humans and adapted to live with humans
Term
Applied Ethology
Definition
the study of domestic animal behavior
Term
Nutrient density
Definition
A measurement of the nutrients found in a food compared to caloric content
Term
Stress
Definition
A state of physical, emotional, or chemical strain or tension on the body
Term
Pathogen
Definition
Any living disease-producing agent
Term
Toxin
Definition
One of several poisonous compounds produced by some microorganisims, plants, and animals
Term
Work
Definition
Physical exertion as a production function
Term
List in order of contribution to world meat supplies the 3 major meat species (highest to lowest).
Definition
Pork, chicken, beef
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