Reproduction

Question 1

What is the Oestrus Cycle

Question 2

Pro-oestrus

Answer 2

• Increased follicular growth
• Increased progesterone levels
  (The female is not yet sexually receptive)

Question 3

Oestrus

Answer 3

• Follicles are maturing
• FSH & LH are at their peak
• Oestrogen increases until ovulation
  (Female is sexually receptive)

Question 4

Metoestrus

Answer 4

Corpus luteum produces progesterone
(Body preparing for pregnancy)

Question 5

Dioestrus

Answer 5

Progesterone levels at their highest
(Animal will remain here if she falls pregnant)

Question 6

Anoestrus

Answer 6

• Rest period for the reproductive system
• Rapid decline in progesterone production
  (Length of this stage changes depending on the species)

Question 7

Seasonally mono-oestrus

Answer 7

Undergo oestrus one time a year at predictable time. (E.g: wolves)

Question 8

Dioestrous

Answer 8

Undergo oestrus twice per year (E.g: Domestic dogs)

Question 9

Polyoestrus

Answer 9

Go through a succession of oestrous cycles during the year (E.g: Cats, cows & pigs)

Question 10

Seasonally polyoestrus

Answer 10

Undergo oestrus cycles during particular times of year (E.g: Horses, sheeps & goats go into oestrus more than one time during a particular season)

Short-day breeders (e.g: sheep) are sexually active in fall or winter (due to length of pregnancy)

Long-day breeders (e.g: horses) are sexually active in spring and summer (due to length of pregnancy