ANS1 - Post Test Review

Front

What is heritability in the context of livestock traits?

Back

Heritability is the proportion of observed variation in a trait that can be attributed to inherited genetic factors, indicating how much a trait can be improved through selective breeding.

Front

Which livestock trait has the highest heritability estimate among fat thickness, calf weaning weight, loin eye area, and rate of gain?

Back

Loin eye area has the highest heritability estimate at 70%, making it the trait that can be improved the fastest through selective breeding.

Front

What do the notches in a pig’s left ear represent?

Back

The notches indicate the individual number of the pig, which helps in identifying and tracking the animal.

Front

What is a suitable plant protein source for livestock feed?

Back

Soybean meal is a suitable plant protein source for livestock feed, providing essential amino acids.

Front

What is the external opening to the reproductive system of a cow called?

Back

The external opening is called the vulva.

Front

What is the function of the abomasum in a ruminant's stomach?

Back

The abomasum is the true stomach where gastric juices act on the feed, aiding in digestion.

Front

Define selective breeding in livestock management.

Back

Selective breeding is the process of choosing specific animals with desirable traits to reproduce, aiming to enhance those traits in future generations.

Front

What is the role of the rumen in ruminant digestion?

Back

The rumen is the largest stomach compartment in ruminants, where fermentation of feed occurs, allowing for the breakdown of fibrous materials.

Front

What is the significance of understanding livestock heritability estimates?

Back

Understanding heritability estimates helps farmers make informed decisions about which traits to select for improvement in breeding programs.

Front

What is the difference between the oviduct and the vulva in female reproductive anatomy?

Back

The oviduct is a tube through which eggs travel from the ovaries to the uterus, while the vulva is the external opening to the reproductive system.