ALAT Breeding and Reproduction 4

Question 1

Which method is used to determine if a female rabbit has been successfully bred?

Accepted Answer

Palpation of the abdomen at 10-14 days post-mating

Answer

Abdominal palpation at 10-14 days post-mating is the standard method to detect embryos in rabbits.

Question 2

What is the term for the reabsorption of embryos that can occur in mice and rats under stressful conditions?

Accepted Answer

Embryonic resorption

Answer

Embryonic resorption is the process by which embryos are reabsorbed by the dam, often triggered by stress or overcrowding.

Question 3

Guinea pigs are unique among common lab rodents because their young are born:

Accepted Answer

Fully furred and mobile (precocial)

Answer

Guinea pig pups are precocial, born fully furred, eyes open, and able to move shortly after birth.

Question 4

What does the acronym 'SPF' mean in the context of a breeding colony?

Accepted Answer

Specific Pathogen Free

Answer

SPF stands for Specific Pathogen Free, meaning the colony is free of a defined list of pathogens.

Question 5

In a trio mating system for mice, the recommended composition is:

Accepted Answer

Two females and one male

Answer

A trio consists of two females and one male, maximizing reproductive output per male.

ALAT - Assistant Laboratory Animal Technician Practice Test