Qhov sib txawv tseem ceeb ntawm omasum thiab abomasums yog omasum, uas yog qhov thib peb ntawm lub plab ruminant, zom cov zaub mov los yog los ntawm fermentation, thaum abomasum, uas yog plaub qhov chaw ntawm lub plab ruminant, digests zaub mov chemically.
Ruminants yog tsiaj xws li nyuj, yaj, tshis, thiab lwm yam, uas muaj lub plab zom mov. Lawv lub plab muaj plaub qhov chaw: rumen, reticulum, omasum thiab abomasum. Lawv digestive system muaj peev xwm zom tau ib tug loj npaum li cas ntawm roughage lawv noj. Txij li thaum lawv muaj ob peb ntu hauv plab, nws loj dua piv rau lwm hom tsiaj. Omasum yog qhov thib peb ntawm lub plab, thaum abomasum yog plaub feem ntawm lub plab ntawm lub plab zom mov.
Omasum yog dab tsi?
Omasum yog qhov thib peb ntawm lub plab ntawm lub plab zom mov. Nws nyob tom qab lub reticulum thiab ua ntej abomasum. Nws yog nyob rau sab xis ntawm lub cranial feem ntawm lub rumen. Nws yog lub ntiaj teb zoo li tus qauv tsim los ntawm ob peb nplooj ntawm cov ntaub so ntswg, muab nws zoo li phau ntawv zoo li. Omasum tau txais zaub mov los ntawm reticulum, thiab nws digests zaub mov mechanically los yog fermentation. Ntxiv mus, nws absorbs dej thiab lwm yam khoom los ntawm digestive cov ntsiab lus.
Daim duab 01: Ruminant Digestive System
Muaj ob lub physiological compartments nyob rau hauv omasum: omasal kwj dej thiab inter-laminate recesses. Omasal kwj dej hloov khoom noj los ntawm reticulum mus rau omasum thaum inter-laminate recesses muab thaj tsam rau kev nqus.
Abomasum yog dab tsi?
Abomasum, tseem hu ua lub plab zais cia, yog lub tsev thib plaub ntawm lub plab ntawm lub plab zom mov. Nws yog ib tug glandular qauv uas muaj cov qog uas secrete hydrochloric acid thiab digestive enzymes. Yog li ntawd, cov tshuaj digestion ntawm cov zaub mov yuav tshwm sim nyob rau hauv lub abomasum. Nws ua rau cov zaub mov npaj rau kev nqus hauv cov hnyuv. Tsis tas li ntawd, abomasum zoo ib yam li lub plab ntawm nonruminants. Lub abomasum yog lined nrog yooj yim columnar epithelium. Ntxiv mus, nws yog coated nrog mucous rau nws tiv thaiv.
Qhov Zoo sib xws ntawm Omasum thiab Abomasum yog dab tsi?
- Omasum thiab abomasum yog ob feem lossis qhov sib koom ntawm lub plab ruminant.
- Ob qho tib si koom nrog hauv kev zom zaub mov.
- Lawv nyob rau hauv lub plab kab noj hniav.
Qhov txawv ntawm Omasum thiab Abomasum yog dab tsi?
Omasum yog qhov thib peb ntawm lub plab ntawm lub plab zom mov polygastric ntawm ruminants. Ntawm qhov tod tes, abomasum yog lub tsev thib plaub ntawm lub plab ntawm lub plab zom mov polygastric ntawm ruminants. Yog li, qhov no yog qhov sib txawv tseem ceeb ntawm omasum thiab abomasum. Tsis tas li ntawd, lub omasum nqa tawm cov zaub mov digestion mechanically los yog los ntawm fermentation thaum lub abomasum nqa tawm tshuaj digestion ntawm zaub mov.
Ntxiv mus, abomasum muaj qog thaum omasum tsis muaj qog. Yog li, qhov no yog lwm qhov sib txawv ntawm omasum thiab abomasum. Tsis tas li ntawd, omasum yog lined los ntawm stratified squamous epithelium thaum abomasum yog lined los ntawm cov yooj yim columnar epithelium. Tsis tas li ntawd, abomasum zoo ib yam li lub plab uas tsis yog lub plab thaum omasum zoo ib yam li reticulum hauv cov qauv.
Hauv qab infographic qhia qhov txawv ntawm omasum thiab abomasum.
Summary – Omasum vs Abomasum
Omasum thiab abomasum yog ob ntawm plaub qhov chaw ntawm lub plab ruminant. Omasum yog lub thib peb chav uas digests zaub mov los ntawm fermentation thiab mechanical digestion. Ntawm qhov tod tes, abomasum yog lub tsev thib plaub uas ua rau muaj tshuaj lom neeg zom zaub mov. Ntxiv mus, omasum yog cov qauv zoo li phau ntawv, thaum abomasums yog cov qauv qog. Glands ntawm abomasums secrete hydrochloric acid thiab digestive enzymes xws li pepsinogens zom zaub mov chemically. Yog li, qhov no qhia txog qhov sib txawv ntawm omasum thiab abomasum.
