Approach to the Problem Breeding Dog Flashcards
what are the commensal bacteria to the vagina?
e coli, streps, staphs, proteus, pseudomonas
Which is the only exception in bacterial vaginal cultures between all the different fertilities of bitches?
Brucella Canis
But heavy growth of anything is significant
Ureaplasma/mycoplasma is considered a problem though too
HOw do you take a vaginal culture?
12-15 cm swab for the length ot the vagina and standard double guarded swab is used. WE want to get the cranial vagina
WHat does the vaginal look like on endoscopy in the different stages of anestrus, pro and estrus/post
more folds as you go along, need a bit of restraint for
smaller litters have ____ gestation
longer
How long is the bitch’s gestation
65 days from the LH surge
where is fertilization?
in the oviduct wiht the morula
when does implantation take place?
18 hours after LH peak
what type of placentation?
endothelialchorial, zonary
what week into gestation do the mammaries develop?
6 weeks
TImeline of pregnancy and things to watch out for…
4-5 wks - uterus elongates and can cause vomitting, pain and anorexia
6 - mammary glands enlarge
7-9 wks - marginally anemic
TImeline in the last week before birth
contraction light a wk before
Then just before parturition, see a watery fluid from mammaries, slight mucous and relaxation
What happens right as the bitch is whelping or 12 hours before?
temp drops .5 to 1.5 - deontes the first part of parturition
what is important for nutrition?
give maintenance then 25% over last 3-4 weeks
give tid
and proper growth/lactation diet
DON”T GIVE SUPPLEMENTARY CALCIUM
What days can you start to feel concepti on abd palp?
28-32 days. later, they fall and are harder to know. Same time as US
When is rads best to dx preggo?
42-45 -count skulls.
What can US tell at which days
20 days post LH surge - dx preg
25 - heart beat
Relaxin levels will tell us…
20 days after LH surge will prove preggo. take the test 3-4 weeks after breeding. the most for sure day is 31 at which it will tell perfectly
How long is a bitch in stage 2 parturition?
3-6 hours, when the feti are passing
When do we assist in stage 2
if 5 hours or longer for first pu or 2 hours before subsequent pups, usuallt 20-60 min apart
characteristics of stage 3
placenta expelled right away, should allow the bitch to eat the placenta.
Cervical causes of dystocia
inflammation, hormonal failure to dilate, congenital or stricture
How to treat canine dystocia
c-section unless 5 or more pups left and small enough, give oxytocin.
.2-.25 IU IM - wait 45 minutes. If puppies come, give more for each one. If they don’t give calcium gluconate and repeat oxytocin after that.
THe golden rule for canine dystocia
rad and a c-section
what is the pathogenesis behind pseudopregnancy
lower progesterone = higher prolactin
clinical signs of pseudopregnancys
mammary enlargment personality changes abd distention lactation vomitting, depression, anor
How to Dx Pseudopreg?
Rads and US for nothing
wait 42 days
what does bromocryptine do?
inhibits prolactin secretion
Preg is dependent on the CL for how long…
the whole time in dogs and cats
what is the CL dependent on?
LH and prolactin
Which drugs are luteotrophic?
Estrogens - DES (oral), ECP (inj)
Dexamethasone - give mid-gest, 5 mg Bid, inj
Pg - lutalyse
PG analogues - fenprostalene, fluprostenol, cloprostenol
Which drugs are anti-prolactin
bromocriptine
cabergoline
Side effects of the estrogens
TCpenia, anemia, leukopenia, pancytopenia, cystic endometrial hyperplasia, pyometra
What are the P4 antagonists?
Mifepristone
Aglepristone
What is a benefit and risk of the PG for Preg discont?
can use early like 6 days into diestrus
harsh side effects like dilating cervix, increasing mot/tone –> expulse contents. Worse yet, hyperpnea, hypersalivation, vomition, defecation,
