All Lectures Flashcards
2Brucella canis induces abortion by causing what pathology in the bitch?
(Placentitis)
What is the best test for canine brucellosis?
(Cornell multiplex test)
(T/F) The rate of increase of progesterone in the blood of a bitch equates to the rate of maturation of her ovulated oocysts.
(T)
Pair the following:
< 1ng/ml progesterone
A - Ovulation
B - No luteal tissue present
C - LH peak
B
Pair the following:
2 ng/ml progesterone
A - Ovulation
B - No luteal tissue present
C - LH peak
C
Pair the following:
5 ng/ml progesterone
A - Ovulation
B - No luteal tissue present
C - LH peak
A
Progesterone testing should occur every other day starting on day 5-7 of a bitch’s cycle (unless they are known to ovulate early), how do you figure out what day one is?
(Day one is when they start having vulvar discharge)
(T/F) Shipped chilled semen is equivalent to fresh semen in terms of how long it lasts in the reproductive tract of the bitch.
(T)
Describe the natural breeding method.
(Breed every other day as long as the bitch is standing after you identify ovulation via progesterone testing)
Frozen semen needs to be placed on a bitch’s most fertile day, how can you figure that out using both ovulation or LH peak?
(3-4 days post ovulation or 5-7 days post LH peak, look at the progesterone timeline and go from there)
What is the due date for dogs post LH peak, ovulation, and diestral shift?
(65 post LH peak, 63 post ovulation, 57 post diestral shift)
Pregnancy should be checked how many days after ovulation in a bitch?
(28 days)
When is the average peak fertility in male dogs?
(2-4 years)
When is the average peak freezability in male dogs?
(2-5 years)
Why are overweight male dogs likely to be less fertile than normal conditioned dogs?
(Dogs tend to deposit fat in their scrotum and fat holds heat and heat is a no no for sperm)
Do thyroid, parathyroid, or adrenal (choose) endocrine abnormalities lead to infertility?
(Adrenal)
What class of flea/tick meds can impact fertility?
(Isoxazolines, target rapidly dividing cells which sperm cells definitely are)
If you are presented with a stud dog that has oddly low sperm cells and bad morphology/motility that usually has good numbers, you’re going to ask about meds and disease within how many days of his presentation to you?
(60 days, that’s how long spermatogenesis takes)
Describe what is contained in each of the fractions of ejaculate.
(First - whatever was in the urethra at the time, some prostatic fluid and +/- urine, second - sperm-rich, third - prostatic fluid only)
When should you advise an owner to switch a pregnant dog from adult food to all life stages or puppy food?
(At the pregnancy check at 28 days)
Progesterone needs to be greater than what value to maintain pregnancy in a dog?
(>2ng/ml)
What day of pregnancy should fenbendazole deworming occur?
(41 days)
What day of pregnancy should prewhelping radiographs be taken?
(56 days)
What day of pregnancy should the ultrasound pregnancy check be performed?
(28 days)
If a dog presents for a pregnancy check at 28 days and you note resorption sites, what should you do next?
(Optimally you would have already done a thorough physical exam and if not, do one now; if dog appears systemically fine, have them come back in a few days for another check to see if resorption is progressing or not, if it is then further diagnostics are called for)
(T/F) Physiologic embryonic resorption does not affect normal litter size.
(T, occurs when there is genetic abnormality of an embryo or if there is overcrowding)
What are some bacterial causative agents of embryonic resorption/abortion? 8 answers, definitely don’t need to get them all.
(Brucella canis, E. coli, Staph, Strep, Campylobacter jejuni, Salmonella, Mycoplasma, and Ureaplasma)
What are some viral causative agents of embryonic resorption/abortion? 4 answers, definitely don’t need to get them all.
(Canine herpes virus 1, parvovirus, distemper, canine adenovirus 1)
Progesterone slowly increases/decreases (choose) as pregnancy progresses in dogs.
(Decreases, usually >20ng/ml for first half and >5ng/ml for second half)
When monitoring a dog that is close to whelping, she will whelp within 24 hours of her temperature reaching what value?
(99 F)
(T/F) You should confirm pregnancy prior to using prostaglandin treatment to terminate a potential pregnancy.
(T)
How long can you wait after a misalliance to spay a dog?
(2 weeks, want to wait for heat to end but not too long as to complicate the surgery)
(T/F) Embryo implantation occurs around day 19-21 in dogs, aglepristone must be given prior to that point to work.
(F, aglepristone can be given up to 45 days after a misalliance occurs, if it is given prior to implantation, it prevents implantation and if it is given after, it induces resorption)
The first stage of labor usually lasts 6-12 hours but may be longer in what cases?
(Primiparous bitches)
The second stage of labor usually lasts 2-12 hours but may last up to 24 hours in what cases?
(Large litters)
What is the normal presentation of chorioallantoic fluid?
(Clear yellow fluid)
(T/F) Lochia should not pass prior to the first puppy being born.
(T, this is a sign of dystocia)
Greater than what time interval between puppies is a sign of dystocia?
(>2-3 hours)
What are two ways to approximately age fetuses in utero when the breeding may not have been well managed, and when in gestation can those methods be used?
(Biparietal diameter during late gestation and inner chorionic cavity diameter in early gestation)
(T/F) It is never normal for a fetus to have a heart rate below 190-200.
(F, can be normal during active uterine contractions but if there are no contractions, then it is abnormal)
What two things do you look for to indicate appropriate fetal maturity, which can develop anywhere from 1-4 days prior to whelping?
(Continuous fetal GI peristalsis and clear corticomedullary distinction in the kidneys)
Medical dystocia management should only be pursued when there are how many puppies left to deliver?
(2-4, 2 is Dr. Balogh’s suggestion but a textbook says 4)
Why can putting the delivered puppies on a dam to nurse aid in the birth of additional puppies?
(Triggers the release of oxytocin)
In relation to breeding, ideally when should female breeding stock be tested for tick borne diseases?
(Prior to coming in to estrus)
Of the drugs listed below, which are safe for use in breeding animals:
Ivermectin
Fenbendazole
Flumethrin, imidacloprid
Floralaner, afoxolaner
Febental
Moxidectin, imidacloprid
Selamectin
Ivermectin (Safe except in MDR positive dogs, heartgard)
Fenbendazole (Safe, top choice dewormer, panacur)
Flumethrin, imidacloprid (Safe, seresto collars)
Floralaner, afoxolaner (Not safe esp. in animals with seizures, isoxazoline class)
Febental (Not safe, drontal plus)
Moxidectin, imidacloprid (Not safe, advantage multi)
Selamectin (Safe, revolution)
What is the key to using flea/tick preventatives in breeding stock?
(Read the novel that is included)
If using monthly isoxazoline products in breeding stock they will need a wash out period prior to breeding, how long should that wash out period be?
(2 months)
When should breeding bitches be switched to all life stages or puppy food (now that studies have been updated)?
(1-2 months prior to heat cycle and if that is difficult to know, as soon as she comes into heat and if you are planning to breed her that cycle)
What is the main nutrient provided in all life stages or puppy food that is needed for puppy neuronal development?
(DHA)
What additional nutrient should be supplemented in breeds predisposed to midline defects?
(Folic acid → 5mg PO per day up to day 40 of the pregnancy)
What are the pathogens of concern with raw diets?
(Salmonella, E. coli/other coliforms, Campylobacter, Toxoplasma, Neospora caninum, Crypto)
(T/F) Freezing raw meat for at least one week reduces the possibility of parasitic and bacterial infections.
(F, just parasitic is true)
Pair the following definition to its appropriate drug category:
These drugs may have potential risks. Studies in people or laboratory animals have uncovered risks, and these drugs should be used cautiously or as a last resort when the benefit of therapy clearly outweighs the risks.
Drug category C
Pair the following definition to its appropriate drug category:
Probably safe. Although specific studies may not have proved the safety of all drugs in dogs and cats, there are no reports of adverse effects in laboratory animals or in women.
Drug category A
Pair the following definition to its appropriate drug category:
Contraindicated. These drugs have been shown to cause congenital malformations or embryotoxicity.
Drug category D
Pair the following definition to its appropriate drug category:
Safe for use if used cautiously. Studies in laboratory animals may have uncovered some risk, but these drugs appear to be safe in dogs and cats or these drugs are safe if they are not administered when the animal is near them.
Drug category B
Why should hypervitaminosis A be avoided in pregnant dogs?
(Predisposes litters to cleft palettes)
Why is calcium supplementation discouraged in pregnant dogs?
(Excessive calcium intake during pregnancy or nursing can suppress parathyroid hormone production and increase the risk of developing eclampsia)
What are the neonatal killers?
(Hypoglycemia, hypotension, hypothermia)
What are the three reflexes puppies should have?
(Suckling, righting, and rooting)
What medication can be given for agalactia as long as it is started within 24 hours of birth?
(Metoclopramide, efficacy decreases past 24 hours post parturition, milk will come in after 3-5 doses)
What are your treatment options for poor mothering?
(Sepia (not proven to work), intranasal oxytocin, adaptil (not proven to work in every case))
Hypocalcemia is most common in what time period postpartum in dogs?
(2 weeks)
What are the clinical signs associated with hypocalcemia?
(Changes in demeanor, muscle fasciculations, hyperthermia, seizures, death)
What is the treatment for hypocalcemia if you can catch it prior to muscle fasciculations?
(Tums, if presenting with muscle fasciculations can give IV but need to monitor heart)
What is typically the cause of hypocalcemia in postpartum bitches (besides the owner supplementing it willy nilly)?
(Not getting it from the diet so either anorexic or inappropriate diet)
Mastitis in dogs can occur anytime during lactation but is most common when?
(2-3 weeks postpartum)
What are the usually causative agents of mastitis in dogs?
(Either normal flora invading or fecal contamination so Staphs, Streps, and E. coli)
What produce can be used to help treat mastitis in dogs?
(Cabbage → pack around the teat, will pull inflammation/edema out of the teat and it has antibacterial properties)
(T/F) Babies should be left on a mastitic teat.
(T, never remove nursing babies, they will help clear stuff out)
When is metritis most likely to occur postpartum?
(1-3 weeks postpartum)
Why should dogs with vaginal prolapse be spayed? Two reasons.
(1 - it is heritable so you shouldn’t breed affected dogs anyway, 2 - estrogen is what induces it so removing the supply of estrogen (ovaries) will prevent it from happening again)
Why should a vaginal cytology occur before a digital examination?
(Bc lube will mess with the cytology)
How will you distinguish between a normal postpartum vaginal cytology and a vaginal cytology associated with metritis?
(Normal → some neutrophils and epithelial cells, metritis → excessive neutrophils)
Normal uterine dimensions postpartum are based on what three characteristics of the dog/her pregnancy?
(How many puppies the dam had, what breed she is, and how many days postpartum it is)
It is normal to have lochia for how long postpartum?
(3-4 weeks)
Describe normal lochia.
(Green initially then red/brown then transitions to brown/clear, should be odorless the entire time)
(T/F) Carprofen is not excreted in milk of dams unless there is mastitis present.
(T, inflammation d/t mastitis breaks down the normal barriers so carprofen can leak into milk)
What is a good indirect measurement of a dam’s milk production?
(Puppy weight gain)
What are the two common signalments associated with pyometras?
(Older nulliparous bitch and young bitch with virulent ascending bacteria)
Why are pyometras a diestrual disease?
(Bc a CL needs to be present to have the effects on the uterus to cause a pyometra → holding it closed and keeping the immune system quiet)
What does repeated estrous cycles lead to in older, nulliparous bitches that predisposes to infection later in life?
(Cystic endometrial hyperplasia)
Pyometras usually crop up in what time period after a heat cycle?
(1-3 months, can be closer to 1 month for younger bitches with aggressive bacteria)
What induces the cervix to open in pyometra cases?
(Enough pressure on the cervix and enough PGF excreted from the uterus d/t pus/inflammation → open pyometra)
What is the primary causative agent of pyometras?
(E. coli)