Lecture 1 Flashcards
Gestation length of bitch
65 +/- 1 day post LH surge
Ovulation of bitch
2 days after LH surge
How long are mature oocytes viable for
2 days
Once ovulation occurs what must happen
Canine oocytes have to complete 1st and 2nd meiotic division post ovulation before they are ready to be fertilised
Dog: how long can sperm survive in the reproductive tract
7 days
Dog: what is the mating date to parturition
57-72 days post mating
Dog: when is abdominal palpation difficult
Obese, large or tense dogs
Dog: what must you be careful not to confuse foetuses with
Faeces
Dog; when can you do an abdominal palpation
26-35 days
Why cant you perform abdominal palpation less than 28 days dog
Amniotic vesicles are small and difficult to feel
Dog: Why cant you palpate over 35 days (individual)
Difficult to palpate individual vesicles, amniotic vesicles become more confluent
What can be felt at over 55 days
Foetus may be palpated
What can be felt in the last 2 weeks of pregnancy
Foetalskulls, trunks and foetal movement can be palpated
When can you use an ultrasound Dog
+/- 25 days
Dog: when can you get a foetal heart beat on ultrasound
23-28 days
What is ultrasound most accurate
Day 30
What are ultra sounds not good for
Getting the exact number of pups
What facors can affect gestation length on dogs
- Body weight
- Breed
- Parity
Dog: when to take an X-ray
45 days
Dog: what are xrays good for
Number of pups, post whelping to check foetal retention
What views to take with an X-ray
Lateral and DV views
What is relaxin
Hormone produced by the placenta
What should you do if the relaxin test come back negative at 21 days
Retest 7-10 days later to avoid false negative test
Feline: ovualtion
Induced ovulatory
Ovulation 24-36h post coitus
Feline: averages gestation
65 days
Feline: palpation
Greater than 15, less than 35
Feline: ultrasound
greater than 16
Feline: x-ray
Greater than 40
How to diagnose pregnancy in the ewe and doe
- Failure to return to oestrus
- Test of non pregnancy - low concentration of progesterone
- Palpation
- Ultrasonography
Ewes: scanning methods
Transrectal imaging
Enables operator to place the transducer very close to the reproductive organs. This relative closeness enables the use of higher frequency probe which produces clearer images. The transducer is manipulated externally via a rod fixed to the probe head
Ewes: scanning methods
Transabdominal imaging
Can be used to scan the reproductive organs in situations which do not require great clarity. Lower frequency probes are used to enable the user to penetrate deeper into the abdominal cavity
