Parturition Flashcards
in general, predicting _______ is easier than predicting __________
non-parturition; parturition will happen
What is the gestation length of the:
bitch
63d +/- 1d from ovulation
What is the gestation length of the:
queen
58-68d
What is the gestation length of the:
Cow
278-293d
What is the gestation length of the:
Mare
341 +/- 2-3 weeks
What is the gestation length of the:
Ewe
144-151
What is the gestation length of the:
Doe
147-155
Mares foaling ___ to _____ have ~ __ day longer gestation
Jan to March; 10 days
For what species is progesterone drop a good indicator of parturition
cows (drops to < 1ng/ml) and bitch (drop in rectal temp of 1-2 degrees)
T/F progesterone drop is used often to indicate parturition in cows
F; expensive and not practical to do for a herd
what are 4 physical signs of impending parturition
1) engorgement of milk vein
2) mammary gland development
3) poor tail tone
4) changes in body shape
what is the progression of 5 physical signs of parturition in mares (note, some overlap with general physical signs of parturition)
what are 4 other physical signs of parturition in mares?
1) pelvic ligaments relax
2) belly drops
3) mammary gland development
4) milk vein engorgement
5) milk electrolyte and pH changes
6) filling of teats -> down n out
7) waxing
8) lengthening of vulva
9) expulsion of mucus plug from cervix
what are the physical signs of pelvic ligament relaxation
1) obvious tail head
2) sunken mm.
3) semitendinosus and semimembranosus mm look soft
growth of the mare’s udder occurs in the last ________ of gestation
waxing of the teats occurs within _______ before birth
2-4 weeks; 48h
Na and K invert how many hours before delivery
24-48h
When predicting parturition in the mare, it is best to use all signs together. These signs include (7):
- due date
- history
- udder development
- pelvic ligament relaxation
- milk composition
- vulva
- behaviour
Describe the following stages of labour:
- stage 1
- stage 2
- stage 3
stage 1: uterine contractions, repositioning of fetus, dilation of cervix
stage 2: rupture of chorioallantois and delivery of foal
stage 3: passage of placenta
What are the signs of stage 1 in the:
cow
anorexia, arched back, restless, elevated tail
What are the signs of stage 1 in the:
mare
anorexia, colicky, sweating, frequent urination/defecation
What are the signs of stage 1 in the:
bitch
panting, vomiting, nesting, restless
What are the signs of stage 1 in the:
ewe/doe
separate from flock, nesting, restless
What is the length of stage 1 in the:
cow
1-24h (avg. 6)
What is the length of stage 1 in the:
mare
0.5-6h (average 2)
What is the length of stage 1 in the:
bitch
6-12h
