Parturtition Flashcards
Signs of approaching partutition
Udder enlargement begins at 4 months (esp. in 1st time heifers)
vaginal discharge is seen at 7 months
Relaxed pelvic ligaments are seen at 24 to 48 hrs.
Anorexia and restlessness are seen within a few hours
Can vaginal discharge starting as early as 7 months be normal?
It can be normal, even this early.
Should still check on cow and calf though to be sure
1st stage of labor?
dilation of the birth canal
2nd stage of labor?
expulsion of fetus
3rd stage of labor?
expulsion of fetal membranes
What happens in the first stage of parturition?
- All hormonally induced
- uterine contractions
- cervical dilation
- rupture of allantois chorion
- takes 1/2 hour to 24 hours (gen. 2 -6 hrs)
How can you tell if the cervix is fully dilated/
Should be a straight shot to calf with no constriction rings remaining
T/F: The allantois chorion helps to spread out the cervix evenly in all directions.
True
What happens in the second stage of parturition?
- point pressure = causes pain so cow pushes
- passage of fetus
- rupture of amniotic sac
- abdominal contractions
- 1/2 hour to 4 hours
longitudinal presentation
calf’s back is parallel with dam’s back
transverse presentation
calf’s back is PERPENDICULAR to dam’s back
longitudinal anterior presentation
calf’s back parallel with dam’s back
calf coming forelimbs first
longitudinal posterior presentation
calf’s back parallel with dam’s back
calf coming hindlimbs first
dorsal transverse presentation
calf’s back perpendicular to dam’s back
calf’s back to birth canal
ventral transverse presentation
calf’s back perpendicular to dam’s back
calf’s belly to birth canal
