case based learning: molly

Question 1

a bitch 3 months after the end of oestrus is in which stage of the oestrus cycle. what will be the effect of exogenous pgf2a or progesterone

Answer 1

she is in anoestrus
- no effect from either pgf2a or progesterone

Question 2

a non-mated cow 10 days from last oestrus will be in which stage of the oestrus cycle? what will be the effect of exogenous pgf2a or progesterone

Answer 2

luteal
- pgf2a = breakdown of CL and come back into oestrus
- progesterone = extend luteal phase. if the primary CL has regressed when progesterone is removed there will be a rapid return to oestrus

Question 3

when is it best to breed the bitch

Answer 3

~12 days after onset of vulval swelling

Question 4

discuss how the changes of the vaginal epithelium indicates which stage of the oestrus cycle

Answer 4