Ib tug liab cev xeeb tub ntev npaum li cas?

Video: Ib tug liab cev xeeb tub ntev npaum li cas?

2024 Tus sau: Edward Hancock | [email protected]. Kawg hloov kho: 2023-12-16 01:32

Txawm nyob rau hauv hom ntawm apes thiab liab lub sij hawm gestation zoo li qhov teeb meem loj. Rau Rhesus liab nws yog 164 hnub thiab baboons 187 hnub. Rau cov tsiaj me xws li luav lub sijhawm yog li 33 hnub thiab rau nas txog 20 hnub.

Hauv qhov no, tus tsiaj twg cev xeeb tub ntev tshaj plaws?

Tsiaj

Ib yam li ntawd, sharks xeeb tub ntev npaum li cas? Lub sijhawm gestation rau sharks sib txawv, txij li tsib mus rau rau lub hlis mus rau ob xyoos [qhov chaw: Carrier, Oregon Coast Aquarium]. Lub spiny dogfish shark muaj lub sijhawm gestation ntev tshaj plaws, tsis yog ntawm sharks , tab sis ntawm tag nrho cov vertebrates, ntawm 24 lub hlis [source: Bester].

Tsis tas li ntawd, ntau npaum li cas liab muaj menyuam?

Nyob ntawm hom, cov poj niam yuav yug tau txhua xyoo, lossis txhua xyoo. Lawv lub sij hawm gestation, lub sij hawm ntev lawv nqa lub tus menyuam ua ntej yug me nyuam, yog li tsib mus rau rau lub hlis.

Yuav ua li cas liab reproduce?

Liab kev yug me nyuam yog kev xyaum mating liab nyob rau hauv captivity nrog lub hom phiaj los tswj los yog tsim cov hluas. Monkeys yug me nyuam tsis muaj kev cuam tshuam tib neeg, yog li lawv cov xeeb ntxwv yog txiav txim siab los ntawm kev xaiv ntuj. Captiv bred liab tej zaum yuav txhob txwm bred los ntawm lawv cov tswv.

Pom zoo:

Lub lim tiam twg ntawm cev xeeb tub lub cev xeeb tub?

Los ntawm lub lim tiam 12 ntawm cev xeeb tub, koj lub cev xeeb tub muaj tag nrho cov qauv uas nws yuav tsum tau mus rau hauv lub corpus luteum thiab txhawb nqa koj tus menyuam mus rau lub sijhawm cev xeeb tub - txawm hais tias nws yuav loj dua thaum koj tus menyuam loj hlob. Thaum lub sij hawm koj muaj hnub nyoog 40 lub lis piam cev xeeb tub, koj cov placenta yuav, qhov nruab nrab, hnyav li ib phaus

Puas yog cev xeeb tub pib thaum cev xeeb tub lossis implantation?

Kev xeeb tub pib thaum implantation. Tib neeg lub neej yuav tsum pib nrog kev xeeb tub, tab sis kev xav tsis zoo ib yam li cev xeeb tub, qhov kawg ntawm qhov laj thawj, kev tshawb fawb, thiab cov pov thawj kho mob pom zoo pib thaum lub qe fertilized tiav cog rau hauv lub tsev menyuam thiab txhim kho mus rau hauv lub embryo noj qab nyob zoo

Kev kuaj cev xeeb tub puas ua haujlwm tom qab cev xeeb tub?

Koj yuav tsum tau tos mus kuaj cev xeeb tub mus txog rau lub lim tiam tom qab koj lub sijhawm tsis tuaj txog kom tau txais qhov tseeb tshaj plaws. Yog tias koj tsis xav tos kom txog thaum koj tsis nco koj lub sijhawm, koj yuav tsum tau tos tsawg kawg ib mus rau ob lub lis piam tom qab koj tau sib deev. Yog tias koj cev xeeb tub, koj lub cev xav tau sijhawm los tsim cov qib HCG uas kuaj tau

Puas yog ectopic cev xeeb tub yuav tshwm sim ntawm kev kuaj cev xeeb tub?

Puas yuav muaj Ectopic cev xeeb tub tshwm sim ntawm Kev Ntsuas Hauv Tsev? Txij li thaum cev xeeb tub ectopic tseem tsim cov tshuaj hCG, lawv yuav sau npe ua qhov kev kuaj mob hauv tsev zoo. Cov poj niam uas cev xeeb tub ectopic tseem yuav muaj cov tsos mob thaum cev xeeb tub xws li mob lub mis, xeev siab, pom, thiab lwm yam