parturition 2 Flashcards
(31 cards)
Domestic animals normally eat placenta except
mare
In polytocous species, dehiscence and expulsion of fetal membranes are interspersed with fetal births T/F
t
‘Suckling reflex’ causes release of
oxytocin
Sucklings results in greater synchrony of contractions and increase in number of __ contractions
tubulocervica
duration of 3rd stage labor in domestic species
cow
buffalo
mare
ewe
sow
bitch/queen
cow: 12-16 hrs
buffalo: 7-12 hrs
mare: 30mins to 3hrs
ewe: 3-6 hrs
sow: after 2-3 piglets or 4 hrs post farrowing
bitch/queen: along with puppy or within 2 hrs of puppy or kitten
what animal: Vulva stretched out and becomes red and swollen;
ewe
in does Enlargement of udder starting ___ weeks prior to kidding;
1-6
when cervical change there is Loosening of the ground substance due to changes in ___ components
collagen
on f1st stage of labor there is Simultaneous shortening of the ___ and dilation of ____
cervix
internal os.
on first stage of labor ___ and ___ becomes one continuous canal that becomes tightly engaged by the distended allantochorion
Vagina and uterus
what stage of labor: Isolate, uncoordinated waves changes to regular, coordinated peristaltic type
1st
what stage of labor: Separation of margins with hemorrhage in deciduate placenta
1
on first stage of labor there is Progressive rotation from v__ to ___ position
entral to dorsal
in 1st stage of labor what is extended in foal and puppy
Extension of forelimbs head and neck (foal and puppy);
in 1st stage of labor what is extended n calf and lamb
head and neck only
___ of calf first occupy dilating cervix then __ enter cervix after 30 minutes as _____ extend in efforts to “stand up in utero”
Flexed knees
digits
carpal joints
prevent the premature displacement of the fetus/es for orderly expulsion from the horns
cervicotubular contractions
sign of 2nd stage of labor
appearance of abdominal contractions superimposed upon each set of myometrial contractions
predisposing factors of dystocia
hereditary
nutrition
traumatic
Miscellaneous - deficiency
causes of insufficient dilation
uterine torsion
cervical dilation
vaginal strictures
vulvar stenosis
what type of uterine inertia
Myometrial defect - overstretching, degeneration, uterine infection, small litter size or heredity, large fetus, excess uterine fluid
primary
what is Oligohydramnios
low amniotic volume
Very low amniotic - failure of ___
uterine contractions
Secondary Uterine inertia - _____ = stops contractility
exhaustion
