ANSC 221 Nutrition Exam 2

Where in the horse and rabbit does fermentation of cellulose to VFA's occur?

Cecum

Where is bile produced?

Liver

What is a spot in the esophagus of the bird for food storage called?

Crop

Where does most of the VFA formation and absorption take place in the cow?

Rumen

What is the organ called in chickens that corresponds to the stomach of the pig?

Proventriculus

What organ produces enzymes for digesting carbohydrates, fats and proteins and also produces hormones that control blood sugar level?

Pancreas

What compartment of the cow's stomach is nicknamed the "honeycomb", helps in regurgitation and may trap foreign material like wire?

Reticulum

What compartment of the cow's stomach corresponds to the stomach of the dog?

Abomasum

Where in the chicken does particle size reduction take place, replacing the action of teeth?

Gizzard

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

Which of the following is most correct?

Food doesn't move through the pancreas; enzymes from there are secreted into the small intestine

What does amylase digest?

Amylose

Carboxypeptidase and chymotrypsin:

are secreted from the pancreas to digest protein

The function of bile is to

emulsify fat

Intrinsic factor is needed to

absorb Vitamin B12

Select all the hormones in the list that help control the digestive process

Secretin, CCK (cholecystokinin), and Gastrin

Urea is a source of NPN that can substitute for protein in ruminant diets.

True

Gas is released from the rumen by a process called:

Eructation

What factor has the most influence on the Biological Value of a feed? (BV is indicative of the amino acid patter of the feed. It does not depend on the digestibility, it is how well used the DIGESTIBLE portion of the diet is. Mathematically, in the formula Feed - Feces appears in both the numerator and denominator so they cancel out)

amino acid pattern

To have a high biological value a protein must have a high digestibility

False

If a protein has a high digestibility it will have a high biological value

False

Protein that enters the rumen is of two types, DIP and UIP. Which of the two is it more important that it have a good amino acid balance?

UIP

A bomb calorimeter is used to

determine energy content

TDN is most like (TDN and DE are both different measures of energy and both take into account the digestibility. Neither one accounts for all the energy losses that occur).

DE

NIRS is used in animal nutrition for

rapidly estimating the components in feed

Which of the following are in the category: grains fed to animals?

grain sorghum (milo), oats, and corn

Corn gluten meal can be fed to chickens, pigs, dogs and other animals but what is a reason to feed it to chickens that would not apply to feeding it to pigs or dogs?

It contains xanthophyls that add color to egg yolks and flesh making it appealing. 

What is Opaque-2 corn?

corn with more lysine

Why is fat used more efficiently than carbohydrate in summer when temperatures are hot?

Heat increment of fat is lower