Post Pubertal Domestic Bovine

Question 1

Bos taurus

Answer 1

temperate

Question 2

Bos indicus

Answer 2

tropical

Question 3

Females are _____________, where estrus occurs at _____________

Answer 3

are non-seasonally polyestrous, where estrus occurs at 21-day (cows) or 20-day (heifers) intervals

Question 4

The estrus phase typically occurs in ________ or __________, where ovulation occurs at metestrus

Answer 4

21-day intervals (cow) or 20-day intervals (heifer)

Question 5

The estrous cycle is conventionally divided into: Estrus
Metestrus
Diestrus
Proestrus

Answer 5

Estrus: day 0
Metestrus: Days 1-4
Diestrus: Days 5-18
Proestrus: Day 19 to onset of estrus

Question 6

Bulls are _________, however, spermatozoal motility, morphology and concentration may be affected by ____________________________

Answer 6

Bulls are noncyclic, however, spermatozoal motility, morphology and concentration may be affected by heat stress in periods of high temperature and humidity