REPRO 1 Flashcards
in intact female dogs, is the uterus usually visible on x-rays?
no: its too small
puberty is defined as first oestrus cycle or first sperm production.
-what is the age of onset?
-how is this age dependant on weight and breed?
-usually 5-9mo, can be 18-24
-typically when dogs are 80% of adult weight and cats are 2.5kg
-longer haired cats=later puberty+
cryptorchism can be diagnosed if testicles are not present at _____wks
-crystorchid testicles ar predisposed to what issues?
12
-testicular torsion n tumours
the testicular descent journey goes form the caudal abdomen to scrotum. however, most cryptorchid testicles are located where?
inguinal region: can be palpated under skin
describe the graph of oestrogen, progesterone, and ovulation in the dog oestrus cycle
-assume LH surge at day 0
-oestrogen peaks 2 days before surge, then declines
-progesterone increases just before ovulation, then stays high
-ovulation 2 days after LH surge
What is heat? (Which two stages of the cycle)
proestrous n estrous
which hormone is high during the proestrous period?
-what is a key behavioral feature here in regardng to mating?
estrogen
-male dog will be interested but female will not accept
in the dog oestrus cycle, describe the fertile period and ideal fertilisation period
-ideal fertilisation is 2 days after ovulation which is 2 days after LH surge
why is the fertile period longer than the fertilisation period?
bc sperm can survive in the uterus for up to a week
-dogs are monoestrous. what does that mean?
-cats are seasonally polyestrous. what does that mean?
-d: estrous every 6mo
-c: estrous every 2 wks in breeding szn
how long is pro-estrous in dogs?
-oestrus?
-metoestrus?
-anoestrus?
-pro: 7-10d
-oestrus: 7-10d
-metoestrus: 63d
-anoestrus: 3-4mo
how long is pregnancy in dogs?
63d
queens are induced ovulators and seasonally polyestrous. when is their breeding period?
-spring, summer, early autumn in north
queens are seasonally polyestrous. how does this affect spaying procedures?
-spay is difficult when cat is in estrous: increased blood flow, delicate tissues
-by the time owner calls n makes an appointment, its been 2 wks and cat is in estrous again
in cats, the LH surge is produced by stimulus.
-describe the graph of progesterone and oestrogen
during pregnancy, as prolactin increases near partuition, which hormone declines?
progesterone
between cats and dogs, which have more physical sings indicative of oestrus? which have more behavioral sings?
dogs physical, cats behavioral
cats are polyestrous: if cats ovulate and are not mated, how long till they return to eostrus?
10-14d
Cats can experience false pregnancy if they ovulate spontaneously and are
not mated. what happens in this case?
longer than normal time (35-45d) before return to oestrus
how long is pregnancy in cats?
65-67d
what are the 3 parts to the dog mating process?
-receptive
-mating
-tie phase
what are the 4 parts/steps to the mating process in cats?
(The first one is mating visits)
-mating visits
-courtship
-intromission
-repeat matings
