Repro Encocrinology SA

Question 1

Diagnosing pregnancy in dogs?

Answer 1

relaxin only from placenta

Question 2

Immature oocytes ovulated in dogs

Answer 2

P4 completes first miotic division

Question 3

Good time to mate bitches?

Answer 3

small rise in P4 prior ovulation is best time

Question 4

Luteal phase and Pregancy is same length in dogs

Answer 4

both 60 days

Question 5

cause of pseudopregancy in dogs?

Answer 5

PROLACTIN rising at day 25

Question 6

signs of pseudopregnancy

Answer 6

nest making, nursing, false parturition

Question 7

treatment of pseudopregnancy?

Answer 7

synthetic P4/Oestrogens/Dopamine agonists causes PRL to decrease

Question 8

Synthetic P4 (Proligestone)

Answer 8

negative feedback on LH/FSH stops oestrus

active orally unlike natural P4

Question 9

Methods of leuteolysis- no maintence of pregnancy- allow cycling to start again

Answer 9

cont. GnRH/GnRH antagonist/PGF2a/Dopamine agonist

Question 10

Control Oestrus in cats?

Answer 10

hCG= potent LH causes ovulation and CL formation allowing P4 to suppress Oestrogen