click below
click below
Normal Size Small Size show me how
Reproductive Terms
Reproductive and Genetic Terminology
| Term | Definition |
|---|---|
| Abortion | premature expulsion of a fetus, either by nature or intent |
| Afterbirth | placenta and fetal membranes expelled from uterus in parturtion |
| Albino | genetic trait causing lack of pigment in the skin, hair, and irises of the eye |
| Alter | to neuter a male animal or spay a female animal |
| Artificial insemination | introduction of semen into the uterus by other than natural means |
| Billy goat | male goat |
| Bitch | female dog |
| Boar | male pig |
| Breed (n.) | group of related animals similar enough to produce similar offspring |
| Breed (v.) | to supervise the sexual propagation of animals |
| Brood | offspring from one hatching of a bird's eggs |
| Broody | hen sitting on eggs |
| Buck | male deer, goat, rabbit, or kangaroo |
| Bull | male of various large mammals especially cattle |
| Bullock | castrate bull or steer |
| Calf | bovine younger than one year |
| Capon | neutered rooster |
| Castration | removal of the testicles; neutering a male animal |
| Cesarean section | removal of unborn young by surgical incision into the uterus |
| Chick | young bird, especially a chicken |
| Chromosome | bodies within the cell nucleus that store genetic information |
| Clutch | group of eggs laid at one time by a bird |
| Cob | male swan |
| Cock | male chicken older than one year |
| Cockerel | male chicken younger than one year |
| Colostrum | protein- and antibody-rich milk secreted by the mother after giving birth |
| Colt | male horse before maturity |
| Congenital | condition existing at birth but not hereditary |
| Cow | female of various large animals, especially cattle |
| Cygnet | young swan |
| Dam | female parent |
| Doe | adult female goat or dear |
| Drake | male duck |
| Duckling | young duck |
| Embryo | undeveloped fetus; the young in an early stage of development |
| Estrus | time of reproductive cycle when the female is receptive to mating |
| Ewe | female sheep of breeding age |
| Fertilization | union of the sperm and egg |
| Fetus | unborn developing animal |
| Filly | female horse under four years old |
| Fledgling | young bird just learning to fly |
| Foal | young or newborn horse |
| Gander | male goose |
| Gelding | neutered male horse |
| Gene | part of chromosomes carrying hereditary information |
| Genitalia | part of the reproductive anatomy |
| Gestation period | time between conception and birth of an offspring |
| Gilt | young female pig |
| Gobbler | male turkey |
| Gosling | young goose |
| Gravid | pregnant; containing developing young |
| Heat | estrus condition |
| Heifer | young cow |
| Hereditary | transmissible from parent to offspring; genetically determined |
| Inguinal hernia | protusion of tissue through inguinal canals of males |
| Jack | male donkey; jackass |
| Jenny | female donkey |
| Kid | young goat |
| Kitten | young cat |
| Lamb | young sheep |
| Litter | several offspring from one birth, especially in mammals |
| Mammary glands | glands of female mammals that secrete milk after parturition |
| Mare | female horse four years or older |
| Miscarriage | expulsion of underdeveloped fetus |
| Monestrous | having one estrus period per year |
| Mongrel | mixed-breed dog; a mutt |
| Nanny goat | female goat |
| Neonate | newborn animal |
| Nest | structure made or place chosen for breeding or laying eggs |
| Neuter | removal of the reproductive organs |
| Nuptial plumage | brilliant mating-season plumage exhibited by some birds, usually males |
| Oviparous | animals whose eggs develop outside the mother's body |
| Ovovivparious | animals whose eggs develop within the mothers oviduct |
| Parturition | process of giving birth |
| Pen | female swan |
| Piglet | young pig |
| Placenta | organ within the gravid uterus, expelled after birthing |
| Polyestrous | having more than one estrous period per year |
| Pouch | fold of skin for carrying young on abdomen of female marsupial |
| Pregnancy | condition in which offspring develop in the female uterus |
| Prepuce | protective sheath covering the penis |
| Pullet | female chicken younger than one year |
| Pup | young dog or seal |
| Queen | mature female cat used for breeding |
| Ram | sexually mature male sheep |
| Rooster | male chicken |
| Shoat | pig under one year old |
| Sire | male parent of any quadruped, especially a horse |
| Sow | female pig |
| Spay | to remove the ovaries and uterus; to neuter a female animal |
| Squab | fledgling pigeon |
| Stag | male deer |
| Stallion | male horse |
| Steer | Neutered bull |
| Stud | male horse used for breeding |
| Tom | male cat or turkey |
| Umbilical cord | vessel connecting the fetus to the placenta |
| Vagina | female passage for copulation and birthing |
| Viviparous | giving birth to live young developed in the uterus |
| Vixen | female fox |
| Wether | neutered ram or billy goat |
| Whelp (v.) | giving birth to, said especially of dogs |