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46 Cards in this Set
- Front
- Back
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puberty is related to what?
-when is it delayed? |
body weight and season - 2.3-2.5kg - between 4-12 months, have 14+ yrs repro life
-delayed if critical weight is reached in the fall |
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cat estrus responds to what?
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incr photoperiod
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when is estrus? anestrus?
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-E: later winter thru fall
-AE: october to december |
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how long does PE last?
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0-2 days
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how long does estrus last?
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2-19 days (ave ~9d)
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what cats show estrus throughout the whole year?
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-tropical living
-short hair |
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what is unique about the LH peak?
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LH incr w/# of matings and may not occur after only one mating
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when does ovulation occur?
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30-40 hrs after the elusive LH peak
-spontaneous ov DOES occur |
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what happens if ov doesn't occur?
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postestrus/interestrus occurs and then estrus occurs again
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sequence of events w/o ovulation
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PE --> estrus --> postestrus/interestrus --> estrus
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sequence of events w/ovulation but non-pregnant
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PE --> estrus --> DE --> anestrus
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how long is postestrus/interestrus?
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8-10d
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how long is DE?
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40d
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T/F: CL is necessary throughout pregnancy
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true (seems to be needed bc CL of pregnancy produces P4 for 66 days)
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when (seasonally) does anestrus occur?
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October thru december
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where does P4 come from?
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corpus lutelm through pregnancy
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rise and fall of P4 during pregnancy
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>2ng/mL 1-2 days after ov
peak conc 15-30ng/mL at 25-30d slow decline through rest of pregnancy |
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what level is estrogen during pregnancy and when does it peak?
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-baseline thru most of pregnancy
-peaks at time of copulation during estrus |
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what produces relaxin?
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feto-placental unit
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when does prolactin incr during pregnancy?
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dat 35
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when does implantation occur and what type is it?
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-12-13 days after ov
-zonary and epitheliochorial |
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how to dx pregnancy
1. test 2. US 3. radiograph 4. P4 levels |
1. relaxin
2. 15d 3. 45d 4. suggestive but not reliable |
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length of gestation
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52-74 d from first or last mating
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T/F: gestation length is associated w/age, parity, number of fetuses, weight of fetuses, and genetic background
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false: gestation length is not associated w/any of that
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P4 level assoc w/parturition
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-declines to 405ng/mL around days 63-65
-declines to 2ng/mL the day of parturition |
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average length of parturition?
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16hrs
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when should kittens ingest colostrum?
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w.i the first 24 hrs
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average length of time between kittens
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4hrs from beginning of labor to first kitten
-2 hrs between kittens |
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what happens is a queen won't respond to oxytocin during parturition?
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immediate C-section
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causes of non-infectious pregnancy loss
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-taurine deficiency
-ectopic pregnancy (mummified) -uterine torsion -undiagnosed |
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contraception
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-early OHE
-estrus suppression: progestins, androgens, GnRH |
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progestins used to suppress estrus
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megastrol acetate
medroxyprogesterone acetate |
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androgens used to suppress estrus
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Mibolerone (no others well documented)
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what is used to induce ov?
-problem |
GnRH (induces luteal phase)
-may predispose to pyometra |
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how to mismate a cat (terminate pregnancy before pregnancy diagnosis)
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-give estrogen w/i 2-3 days of breeding
--estradiol cypionate (0.25mg) --DES (2mg repositol form) |
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what two products are used for abortion in a cat and when?
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-PGF2a after 40 days of gestation
-Cabergoline (prolactin inhibitor) after 30 days |
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when can PGF2a be used for abortion?
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after 40 days of gestation
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which prolactin inhibitors can be used for abortion and when?
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Cabergoline, after 30 days
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when is pyometra found in cats?
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-single cat household w/spontaneous ov
-cats treated w/exogenous P4 -estrus has occurred w/i 4wks |
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msot common bacteria in feline uterus
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E.coli and Streptococcus
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CS and bloodwork of pyometra
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-purulent vaginal discharge, anorexia, abd distention, lethargy, vomiting, PU/PD
-bldwk: leukocytosis, hypoerproteinemia, hypokalemia, azotemia |
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how do you treat an open pyometra when the owner doesn't want to spay (ex breeding cat)?
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give PGF2a once or twice daily for 2-5 days
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estrus behavior
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demand for attention, hind limb treading, lordosis, vocalization, rolling
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time period for mounting and copulation
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mounting < 1min
positioning may take a few minutes intromission and ejaculation < 1min |
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how to induce ovulation
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hCG (50-250 IU administered IM)
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what may interfere w/fertility?
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anesthesia, surgery
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