ANSC 221 Exam 2 Flashcards
What is defined as all of the chemical and physical changes that food undergoes to be absorbed
Digestion
What structures make up the digestive tract (8)
Mouth, esophagus, stomach, small intestines, large intestine, liver, gall bladder, and pancreas
Gas is released from the rumen in a process called?
eructation
What is mastication
Chewing
What is the space in the esophagus where the grinding of food occurs which aids in digestion
Crop
What compartment of the cow’s stomach is nicknamed the honeycombed, helps in regurgitation and may trap foreign material like wire
Reticulum
Where does most of the VFA formation and absorption take place in the cow
Rumen
What compartment of the cow’s stomach keeps feed particles from moving on too quickly until fermentation is complete or particle size is small enough
Omasum
What compartment of the cow’s stomach corresponds to the stomach of the dogs
Abomasum
What is the organ called in chickens that correspond to the stomach of the pig
Proventriculus
Where in the horse and rabbit does fermentation of cellulose to VFA’s occur
Cecum
What organ produces enzymes for digesting carbohydrates, fats, and proteins and also produces hormones that control blood sugar levels?
Pancreas
Where is bile produces
Liver
Where in the chicken does particles size reduction take place, replacing the action of teeth?
Gizzard
Name the 4 compartment of a ruminant stomach
Reticulum, Rumen, Omasum, Abomasum
Which part of an animal is involved in prehension
Lips
What is the function of bile
emulsify fats
What are the three enzymes found in the mouth
Amylase, Mucin, and Bicarbonate
Carboxypectin and chymotrypsin are what
Are secreted from the pancreas to digest protein
Choose all of the hormones in the list that help control the digestion process
CCK, Secretin and Gastrin
What organ produces enzymes for digesting carbohydrates, fats, and proteins and also produces hormones that control blood sugar level
Pancreas
In digesting food and following the digestive process, where does food move through, and where do the enzymes come from?
Food moves through the stomach into intestines
Enzymes come from the small intestine
Which feed takes abundant amounts of water to grow, has a long growing season, and is mostly fed to people, not animals
Rice
Which feed is very small, often white round seed that is common in bird seed mixes
Millet
Which grain has a standard weight of 32 pounds/bushels
Oats
Which feed often contains gossypol
Cottonseed
Which feed needs to toasted to destroy trypsin inhibitor
Soybean
Which feed was likely in the diet causing problems resulting in the Salem Witch Trials in early American History
Rye
Which grain often contains tannin which must be processed to remove, or counteracted
Grain sorghum
Which feed is lower in energy, has a very loose hull and is often fed to horses and young animals to get them started on feed
Oats
Which grain has a standard weight of 60 pounds/bushels
Wheat
which feed is most commonly used as the starting point for making beer, the byproduct of which makes good dairy cattle feed
Barley
Which of the following are considered protein supplement feeds
Soybean meal, fish meal, cottonseed meal, linseed meal
Explain the difference between carbohydrates digestion in a pig versus a cow
- Carbohydrates in a pig are digested by digestive enzymes to sugars that are absorbed in the small intestine
- Carbohydrates in a cow are mostly broken down by microbes in the rumen to VFA’s that are absorbed through the rumen wall
Test weight is the measure of what
Density
Which grain has a test weight of 48 pounds/bushels
Barley
Which grain has a test weight of 56 pounds/bushels
Corn
Which grain has a test weight of 60 pounds/bushels
Wheat
Which grain has a test weight of 32 pounds/bushels
Oats
What is the test weight of grain sorghum
56 lbs/bushels
T or F: Microbes in the rumen produce cellulase so they can digest lignin
False (they produce cellulase to digest cellulose)
Which feed is somewhat laxative and improves hair coats due to the mucin it contains
Linseed
Which feed comes from coconuts
Copra
Which energy fraction contains all the energy obtained when a feed sample is combusted in a Paar Adibatic Bomb Calorimeter
Gross energy