animal science final

According to the AM–PM rule, when should a cow be inseminated if she is first observed in heat in the evening?

the next AM

Which of the following is NOT one of the four compartments of the ruminant stomach?

rumen, omasum, abomasum, and reticulum

Which of the following is a major volatile fatty acid (VFA) produced during rumen fermentation?

propenoate, burate, and acetate

what are the six classes of nutrients

Feeds containing less than 70% TDN and more than 30% NDF are typically classified as:

Which digestive tract structure is the main site of nutrient absorption?

Which rumen compartment is most associated with water and mineral absorption?

If a feed contains 5% nitrogen, what is the crude protein content?

Which digestive system classification best describes horses?

A diet containing 85% grain and little forage is most likely to cause which disorder in cattle?

Which digestive process occurs first in ruminant animals after feed intake?

If a feed has TDN = 72%, NDF = 22%, and CP = 10%, how would it most likely be classified?

The process of breaking down large feed molecules into smaller absorbable molecules is called:

Which set of values best describes a high-energy feed?

A ration must contain 16% crude protein. Available feeds are hay = 10% CP and supplement = 30% CP. What percent of the ration should be hay?

Which of the following is the first step when solving a Pearson square problem?

Which of the following is a sub-discipline of Animal Science?

True or false. Brahman cattle were primarily selected for meat and milk production.

These cattle first came to the US from France and are known for their white coats.

This cattle breed has origins in Austria/West Germany.

This dairy breed has the highest butterfat among major dairy breeds.

This breed of dairy cow is sometimes called the "golden milker" because of its production of yellow-hued milk.

Dual prupose cattle breeds typically excel in what two traits?

What are the two breed categories typically used in swine breeding?

Is the CMT result in the image positive or negative?

I am an adult goat that has previous given birth. What am I?

I am an intact male of the bovine species. What am I?

What does the acronym NDF stand for?

Which of the following is not an example of an ART?

When offspring of two different purebred breeds outdoes the performance of its parents, this is known as?

Which livestock industry is the least vertically integrated?

What term describes abnormal or difficult labor?

Which microorganism group is most abundant in the rumen?

What is the primary function of rumen microorganisms?

A rumen pH below 6 is most commonly associated with:

Crude protein (CP) in proximate analysis is calculated by multiplying nitrogen by:

Which laboratory analysis fraction represents fats, oils, and waxes?

Which proximate analysis component represents the total mineral fraction of feed?

If a feed sample contains water = 12%, ash = 6%, crude protein = 18%, ether extract = 5%, and crude fiber = 10%, what is the nitrogen-free extract (NFE)?

Which rumen fermentation product provides the largest energy source for ruminants?

You ran an NDF and found a very high number of 90% on a dry matter basis. What would you expect the crude protein concentration to be?

A producer wants to make a diet containing 12% crude protein using corn = 8% CP and soybean meal = 44% CP. What proportion of soybean meal is needed in the final mix?

A diet is being mixed to contain 14% crude protein from corn gluten feed = 20% CP and grass hay = 8% CP. What percent of the final diet should be corn gluten feed?

A Pearson square can be used to:

The Charolais breed of cattle was first introduced to the US from France via which country?

The "Black Baldy" cattle are a crossbred between which 2 breeds?

Which of the following would be a purpose of introducing Brahman genetics into your Continental herd?

Which of the following breeds would be considered a draft beed?

What is the name of the molecule that gives the Guernsey cattle's milk a gold-hue?

Which dairy cattle breed typically milks the most per lactation?

Which cattle breed has been selected for its recessive coat color?

Describe subclinical mastitis.

How does mastitis influence the pH of milk?

What is the CMT measuring in milk?

What is the binomial nomenclature for swine?

I am an equine male that has been castrated. What am I?

What is the binomial nomenclature for Brahman cattle?

What is the term used to describe the phenomenon when genes from one locus influence the expression of genes at a completely different locus?

What does the acronym EPD stand for?

You are crossing 2 chocolate labs that carry one recessive allele at the E locus. Is it possible for a black puppy to result from this cross?

Shorthorn catle exhibit what type of dominance interaction?

6 offspring from our Kardashian sows were sent to be processed in 2024. Their average live weight at processing was 268 lbs, and their average hanging/hot carcass weight was 195 lbs. What was the average dressing percentage of these pigs?

Which rumen fermentation product is the main precursor for glucose production in cattle?

A producer wants a 20% CP ration using feed A = 12% CP and feed B = 40% CP. How many parts of feed A are needed?

If the desired nutrient concentration is not between the concentrations of the two feeds, then can the pearson square be used:

What is the name of the gene that is impaired in Belgain Blue cattle?

What is the purpose of the dewlap, droopy ears and deep sheath in Brahman cattle?

Earlier in the semester, you observed sheep receving the Cavalry-9 vaccine. This is an example of what type of vaccine?

What is the minimum recommendation for fiber in a ruminant diet?

When calculating TDN, why do you multiply the EE value by 2.25?

Which microorganism group is the largest in size in the rumen?

Which breeding system can net a producer approximately 87% of maximum heterosis?

True or false. EPDs can be used to compare performance between different bull breeds.

North Carolina is one of the top 5 producers of what animal product?

What Structure produces PGF2a?

In artificial insemination, where is semen supposed to be deposited?

Which cattle industry has seen greater adoption of artificial insemination?

Ewes, does and mares are reproductively sensitive to photoperiod. What is this type of estrous cycle called?

Where are oocytes stored (name and letter)?

What is the name of the hormone that causes the rupture of the follicle (ovulation)?

True or false. Female mammals continually produce their gametes (ova) over the course of their lifetime.

Which structure is the organ of copulation (letter & name)?

What was the discovery of Polge, and how did this discovery advance AI?

What is the name of the process that causes multiple ovulations in a single estrous cycle (beyond the typical number of ovulations)?

What ovarian structure is indicated by the arrow?

True or false. When an animal is in estrous, that means they are receptive to copulation.

Which hormone suppresses mating behavior and ovulation in females?

Which hormone is responsible for stimulating estrus (heat) behavior in females?

What is the gestation length of sows?

True or false. In normal presentation, calves are oriented with their front feet forward.

What is the name of the tube that delivers semen from the testes to the female?

Which of the following is an example of straight breeding?

Which system involves repeatedly breeding commercial females to a purebred sire to increase desirable genetics?

What is a major risk of inbreeding?

How can producers reduce genetic defects in a herd?

What does EPD stand for?

EPD values are typically expressed in:

Why are larger cows not always more profitable?

For weaning weight (WW), what is generally desired?

Which EPD measures feed intake?