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