Questions answered wrong

Which of these gases make up the largest percent in the rumen of an animal by volume?

CH4 & CO2

If the Nitrogen content in livestock feed is 10%, how would you calculate the crude protein amount?

CP = (10) x (6.25)

In cattle, what would be the ideal time of semen being deposited into the female reproductive tract by AI for the best chance of fertilization to occur?

10 - 20 hours before ovulation

Which of the following is not considered a "pillar or column" of animal agriculture sustainability?

Production

Sperm formation or spermatogenesis occurs in the _____?

Seminiferous tubules

What component of the male reproductive tract helps prevent thermal stress?

Tunica dartos

Which of the following vitamin is not fat soluble?

Vitamin C

The role of the myoepithelial cells in lactation is to:

move milk down the ducts by contraction

What is the desirable calving interval for beef cattle?

12 months

In the U.S., the official somatic cell count threshold in the dairy industry for milk is....?

750,000 cells/ml

An animal by-product is defined as:

All parts of a live animal that are not part of the dressed carcass

Which one of these edible by-products from animals is becoming less acceptable by countries worldwide due to bovine spongiform encephalopathy (BSE) concerns?

Brain

In what species is retained placenta most common?

Cattle

LH

Cause estrus

Estradiol

Causes ovulation

Which animal discussed in lecture has the highest average body temperature (~107 degrees F)

Chicken

Once a corpus luteum fully degenerates it becomes a __________

Corpus albicans

In the process of sexing semen, what variable differentiates X and Y-bearing sperm?

Difference in mass

What is the correct order, from first to last, that animals were domesticated?

Dogs, sheep/goats, cattle, horses, poultry

Horses and pigs are examples of this type of placenta

Epitheliochorial/Diffuse

Hoof soreness and lameness is associated with _____ in beef cattle

Founder

Which part of the digestive tract is mainly responsible for regulation of body water content?

Large intestine

Brown pigment of meat indicates which chemical state

Metmyoglobin

If there is no maternal recognition of pregnancy (MRP), which hormone causes luteolysis?

PGF

The two species that have digestive systems that are anatomically most similar

Pigs and humans

In the net energy system, the energy lost between digestible energy and metabolizable energy is in the form of________?

Urine and gas loss

Extra label drug use is....

When a veterinarian prescribes a drug to be used in a manner that is not found on the label