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2060 final
repro, behavior, poultry, diagnostics, nutritional considerations
| Term | Definition |
|---|---|
| dog reproduction: ___ litters per year, ___-___ puppies per litter | · 2 litters, 4-6 puppies |
| cat reproduction: ___ litters per year, ___-___ kittens per litter | · 3 litters, 3-4 kittens |
| oviducts move ovulated and released eggs from ovaries -> uterus in about ___ days | · 2 days |
| oviducts are the site of | · egg maturation and fertilization |
| the uterus is the site of | · implantation and placental/fetal development |
| skeletons of puppies/kittens are visible on x-ray around day ___-___ | · day 40-45 |
| canine estrous cycle | · non-seasonal, cycle and breed in any month · first heat 6-8 months, aim to spay by 6 · anestrus: reproductive rest, around 4-5 months · proestrus: vaginal capillaries rupture , developing follicles, avg 9 days, male cant mount |
| canine estrous cycle cont. | · estrous: sexually receptive, ovulation occurs multiple times · diestrous/metestrous/pregnancy: 2 months post estrous |
| canine gestation length | · 58-68 days · rectal temp to predict delivery |
| canine repro problems: prolonged heat | · estrus for more than 21 days · usually caused by excessive estrogen from ovarian tumors/follicular cysts |
| canine repro problems: vaginitis | · pathogenic bacteria invade vagina -> infection |
| canine repro problems: pyometra | · uterus under sustained effect of high progesterone and ideal conditions for bacterial growth · open or closed (cervix) |
| canine repro problems: cryptorchidism | · inherited trait · failure of one/both testicles to descend · dogs with neither descended are sterile |
| canine repro problems: dystocia | · prolonged/difficult labor from physical blockage or uterine inertia · certain breeds more at risk (small pelvis and large head) |
| canine repro problems: mastitis | · infection/inflammation of mammary glands, usually trauma -> bacterial infection |
| feline estrous cycle | · mature at 4 months · seasonally polyestrous, induced ovulators: cycle Jan and Feb in northern hem., every 4-30 days, ovulation induced by copulation · cycle ceases Sep/Oct as daylight descreases ·pro-estrous: 1-2 days |
| feline estrous cycle cont. | · estrus: accepts male, 4-6d in his presence and 10d without, ovulates ~27hr after mating · proestrus 7-10d without ovulation · diestrus after ovulation: pseudopregnancy 40d pregnancy 60d · anestrus 3-4mo |
| feline gestation length | · ~65 days · rarely have problems |
| how to prevent estrous cycles? | · spay and neuter · androgens and progesterones not recommended |
Created by:
junoregan
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