Gestation (redirected from perpetual gestation chart)

gestation /ges·ta·tion/ (jes-ta´shun) pregnancy. See also gestation period, under period. gesta´tional

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ges·ta·tion (j-stshn)

n.

The period of fetal development from conception until birth; pregnancy.

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Gestation

The period from conception to birth, during which the developing fetus is carried in the uterus.

Mentioned in: Childbirth

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gestation,

n the period of time between the fertilization of a mam-mal's egg until the time it is born.

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gestation,

n the period of development between fertilization and birth.

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gestation

the period of development of the young in viviparous animals, from the time of fertilization of the ovum to birth. See also pregnancy.

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gestation period

the duration of pregnancy in the domestic animal species are: cow—273 to 292 days (Bos taurus), 271 to 310 days (Bos indicus); mare—333 to 346 days; ass—365 to 375 days; ewe—143 to 147 days (meat sheep), 147 to 155 days (merino); goat doe—146 to 155 days; sow—111 to 116 days; bitch—58 to 68 days; queen—61 to 70 days.

In laboratory and quasi-pet animals: guinea pig 59-72 days, gerbil 24-26 days, hamster 15.5-16 days, mouse 19-21 days, rat 21-23 days, rabbit 29-35 days.

perpetual gestation chart

a table based on the average gestation period of the particular species, e.g. 63 days for bitches, that plots the anticipated date of parturition against the breeding (conception) date. Designed to be independent of the year so it is valid indefinitely.

prolonged gestation

see prolonged gestation.