Oestrus Cycle

Question 1

Pro-Oestrus phase

Answer 1

preparatory stage

4-14 days (9 average)

FSH and Oestrogen

Question 2

Oestrus phase

Answer 2

Period of ovulation and sexual receptivity

4-21 days (9 average)

Luteinizing (LH)

Question 3

Met-oestrus phase

Answer 3

Uterus prepares for pregnancy, maintains pregnancy

60 days (2 months)

Progesterone
Prolactin

Question 4

Anoestrus phase

Answer 4

Reproductive dormancy

100+ (varies between breed)

Question 5

Proestrus clinical signs

Answer 5

-intrested in male dogs but wont mate

-Serosangunious discharge

-Vulval enlargement

Question 6

Oestrus clinical signs

Answer 6

-Straw coloured discharge

-Male acceptance

Question 7

Metoestrus clinical signs

Answer 7

-Will no longer mate

-Mammary development

-Pregnancy (if fertilised)

Question 8

Anoestrus clinical signs

Answer 8

Reproductively dormant

Question 9

Canine breeding cycle

Answer 9

-Monoesters (1 oestrus cycle per breeding season)

-Non seasonal

-Every 6 months average

-Spontaneous ovulation

Question 10

Feline breeding cycle

Answer 10

• Induced ovulation

-Polyoestrous (long day breeders)

-Seasonal polyoestrous

-hit puberty between 4-18 months

Question 11

Caring for pregnant cat

Answer 11

• 65 days gestation

-Increase nutrition from early pregnancy

-Vaccination pre-mating

Question 12

Caring for pregnant dog

Answer 12

-63 days gestation

-Nutrition does not change till last trimester

-vaccination pre-mating

Question 13

Phantom pregnancy

Answer 13

• Elevated progesterone during metoestrus, physical changes

-Clinical signs include mammary enlargement, behavioural changes

Question 14

Progesterone

Answer 14

Maintains pregnancy

Question 15

Luteinising hormone (LH)

Answer 15

causes ovulation and the development of corpus luteum

Question 16

Oestrogen

Answer 16

Involved in female reproductive behaviour

Question 17

Prolactin

Answer 17

Causes milk development

Question 18

Oxytocin

Answer 18

Causes uterine contraction and ‘milk let down’