2017 Remembered Questions Flashcards
Equine ultrasound schedule:
a. Pregnancy detection day 14 first exam (count CL’s and look for twins) + manual reduction before fixation
b. Repeat check at day 16 Twin check
c. Repeat check at day 28 heart beat
d. Last check at day 45-65 (+/- foetal sexing)
e. NB: poor tone = luteal insufficiency & small vesicles are associated with increased rates of EED (early embryonic death)
f. 99% of foals in cranial position
Hemospermia diagnosis
a. Palpation per rectumsemen collection(hemospermia) U/S Radiographs
Treatment = castration (males with no reproductive value)
Finasteride (5 a-reductase inhibitor 5mg PO SID; 10-50kg)
Most common male dog reproductive issues:
a. Benign prostatic disease (BHP) most common prostatic disease >5 years (old)
b. Testicular neoplasia = 2nd most common tumour in male dogs
i. Sertoli cell (50%) = Sertoli cell tumour - feminising (25-45%) E2 sec
ii. Seminoma (33%) = germ cell tumour unilateral - may feminising
iii. Interstitial (17%) = leydig cell tumour of scrotal testes) - incidental findings, paraneoplastic syndrome E2 and Testosterone
c. Orchitis/ epididymitis
i. Aetiology = E. coli and Brucella canis (replicates within lymphocytes)
ii. Young dogs - infection of scrotal content, destruction (autoimmune) of testicular and/ or epididymis tissue and testicular degeneration and epididymal fibrosis
iii. Control for Brucellosis (control in kennel, quarantine, eliminate transmission, cull infected animals, prevent further outbreaks)
iv. Negative culture in 3 consecutive months to confirm kennel free
- Brucella canis in the dog is associated with…
a. Abortions in the bitch (7-9weeks) with prolonged discharge
b. Embryonic death
c. Lymphadenitis
a. Abortions in the bitch (7-9weeks) with prolonged discharge
- Brucella canis is best screened by:
a. by performing a rapid slide agglutination test (RCAT)
- Brucella canis is transmitted
a. Ingestion of infected tissue (zoonotic) (primary)
b. Venereal (secondary)
- Brucella canis treatment in a bitch
a. Eliminate/ Cull
- Which abortive agent is most likely responsible for a bitch displaying bloody discharge, diarrhoea and vomiting
a. Campylobacter jejuni (not common) and zoonotic potential
- Which culture would would be most important in determining and infection of campylobacter in a bitch
a. Placenta>foetal tissue>vaginal swabs
- Treatment for campylobacter would indicate
a. Erythromycin 10-15mg/kg PO TID
- Salmonellas is problematic in canine pregnancy leading to abortions in the bitch to confirm this diagnosis you would obtain a culture from
a. Foetal tissue
- Normal vaginal flora in bitch that can lead to infertility, abortions(30-40d) and neonatal septicaemia the causative agent is most likely to be
a. Streptococci
- Normal vaginal flora in bitch that is associated with poor conception rates, EED and foetal resorption and weak puppies what is the causative agent most likely to be
a. mycoplasma and ureoplasma
- Which agent in canine is most likely to cause mummification and abortion in bitch > 30 days
a. Canine herpes virus
- Canine herpes virus is transmitted from licking and fomites; best diagnosis to check whether its involvement is through;
a. Serology, viral isolation and observing focal necrosis in placenta
- Which agent is known as the minute virus of canines that can cause foetal resorption and abortion?
a. Canine parvo virus
- Clinical disease in bitch that congenitally infects puppies are most likely infected with which agent?
a. Canine distemper (may cause abortions)
- Toxoplasma gondii is transmitted
a. Congenitally and through ingestion of tissues infected oocysts and food and water
- Neospora canis definitive host
a. Dogs are definitive hosts and not important cause of abortion
- Hypoluteidism is poorly documented and is synonymous with;
a. Inadequate P4 (<2-3ng/ml) over 25-35d
Hypothyroidism is a condition in which the thyroid gland is not able to produce enough thyroid hormone.
- Treatment of Hypoluteidism
a. Progestin’s (androgenic and anabolic effects) - masculinisation
b. Micronized P4 and discontinue 2 days prior to parturition
- Foetal resorption in cat is commonly associated with which abortive agent?
a. Feline leukaemia virus
- FLV prevention requires which control measure?
a. Removal of positive queens from catteries
- Which abortive agent is most likely associated with cerebellar hypoplasia, abortion and embryonic death in cats?
a. Feline panleukopenia virus (parvo and distemper)
- Sanguineous discharge from a queen that has aborted foetus that has undergone necrosis, what is the most likely causative agent?
a. Feline herpesvirus rhinotracheitis (queens disease)
- Queen who has arrested foetal development and stillbirth most likely agent?
a. Feline immunodeficiency virus (FIV) lentivirus
- In cat’s abortion due to maternal illness is likely protozoal agent?
a. Toxoplasma gondii
b. Kittens are infected
- Mare behaving like stallion is most likely caused by
a. Granulosa theca cell tumours
- Red bag equine
a. Chorio-allantois fails to rupture
b. Premature separation of the placenta hypoxia
c. Emergency break the membrane and deliver the foal
- Bovine pregnancy duration
a. Bovine = 280 days
b. male foetus = longer gestation
a. Twins = shorter gestation
- Maternal recognition of foetus in cow
a. Day 15-16 of oestrus cycle = conceptus “notifies” dam of its presence
b. Day 12-25 IFN-tau (type one interferon) increases day 14-18
i. Secreted by embryo and acts on endometrial cells
ii. Inhibits production of oxytocin
iii. Can’t stimulate PGF-2alpha
iv. INF-tau > secretion of proteins from the uterine glands
v. Progesterone dominance (P4) exerts a –ve feedback on GnRH neurons (hypothalamus)
c. Day 25-40 gestation = placental attachment
i. Cotyledonary placenta = button like structures over the chorion
ii. Foetal cotyledons and when they join the maternal caruncle they form the placentomes
- Treatment of feline/canine mammary hyperplasia
Canine
i. Most common tumour in intact bitches
ii. >5 years and progestins increased risk
iii. Treatment;
- Surgery (lumpectomy, simple and regional mastectomy)
- OHE
- Chemotherapy (methotrexate) hormonal (Tamoxifen)
Queen
i. Benign fibroglandular proliferation
ii. young, intact and P4 influence
iii. Treatment = spontaneous and luteolysis and OVH, abortion and parturition
- Oestrus inhibition in canine to prevent follicular development
a. Progestin’s (megestrol acetate) = ova ban
- Oestrus inhibition in canine to decrease FSH and LH secretion
a. Mibolerone (cheque drops)
b. Medroxyprogesterone acetate (MPA)
c. GnRH agonists - Deslorelin
- Oestrus inhibition methods equine extend luteal phase
a. Oxytocin = prolonged luteal phase
- Oestrus inhibition hormones in equine
40. Oestrus suppression methods non-hormonal
a. Progestins maintence of progesterone for 7-10days
b. Altrenogest suppression of oestrus in 3 days will show signs 12 days post
a. Marbles stimulates mare increase in P4 for 3 months
b. GnRH vaccines suppression with in 4 weeks’ problematic coming to heat
c. Overectomy removal of overy
- Paraphimosis treatment
a. Inability to completely retract the penis into the preputial cavity post erection/ coitus
b. Gentle cleansing and lubrication
c. More complicated issues require GA and surgery to fix issue
- Priapsims in stallions is a condition commonly associated with the administration?
a. Acepromazine
- Treatment of stallions harbouring Taylorella euigenitalis consist of?
a. Scrubbing the penis with chlorohexidine and application of nitrofurazone ointment (exam question asked regarding nitrofurazone)
- Time taken to “Foal to stand” and “foal to nurse”
a. Stand < 1 hour
b. Nurse < 2 hours
- Most common cause dog dystocia
a. uterine inertia
- Minimum number of motile spermatozoa recommended for insemination of a mare?
a. 500 x 10^6 PMS Fresh/cooled (>60%)
- Induction of ovulation in mare
a. follicle >35mm
b. Deslorelin (GnRH agonist) and hCG