pregnancy failure in the ewe ws Flashcards
1
Q
what are the possible causes of pregnancy loss/abortion in sheep
A
- stress
- nutrition
- infection (85%)
- trauma
- hygiene
- age of ewe
2
Q
what are the most common infectious agents that cause abortion in sheep
A
3
Q
on a sheep farm with abundant abortion, what history quaestions are important
A
- what is the farmer doing with abortive material
- vaccines
- anything happen before in previous years
- cats on farm? (toxoplasmosis)
- what is happening with sheep that have aborted (where are they going)
- has he bought in any ewes from outside the farm (were they vaccinated, how healthy were they)
- are the ewes healthy/are they showing any clinical signs themselves
- do the aborted lambs themselves look normal (how are the lambs that survived)
- how do the placentas look
