Tshiab txoj kev tshawb no exposes panda qab zib hniav

New study exposes panda sweet tooth

Nyob rau hauv ib tug qhov muag tsis pom saj xeem, yim tawm ntawm yim pandas pom zoo — qab zib yog qab.

Nyob rau hauv ib tug tshiab txoj kev tshawv no tawm Wednesday, zaum muab tso rau lub panda saj receptors rau qhov kev xeem, wondering seb tus cuddly critters yuav txawm pom qhov txawv ntawm lub tiaj dej thiab lub qab zib khoom.

“feem ntau hais lus, cov tsiaj uas noj nroj tsuag muaj ib tug Sweet saj receptor vim tias enables lawv mus ntes suab thaj uas yog nyob rau hauv cov nroj tsuag uas yog qhov chaw ntawm calorie ntau ntau,” piav Gary Beauchamp, thawj coj ntawm lub Monell Center uas nqa tawm cov kev tshawb fawb.

Tab sis tsis zoo li cov herbivores, pandas lo rau ib tug nroj tsuag — xyoob — uas yog notoriously tsawg rau qab zib.

Yog li ntawd, kev soj ntsuam xav seb puas — zoo li ntau carnivorous tsiaj, xws li miv — pandas tau poob lawv muaj peev xwm mus ntes tsos.

Txij li thaum Carnivores “tsis txhob noj cov nroj tsuag, tsis hu rau suab thaj, yog tsis muaj lawm ib tug siab rau lawv kom muaj lub qab zib receptor haumxeeb,” Beauchamp hais AFP.

Qhov kev tshawb xav yog tias xyoob-munching pandas, uas kuj tsis zoo li yuav tsum tau raug mus ntau qab zib, tej zaum kuj tau poob lawv muaj peev xwm saj qab zib.

Deutsch: Großer Panda im Ocean Park, Hongkong

Deutsch: Giant panda nyob rau hauv dej hiav txwv Park, Hongkong (Diam duab credit: Wikipedia)

Tab sis nws muab tawm pandas, ib yam li lwm herbivores, tseem muaj ib tug zoo-tuned qab zib hniav.

Thaum muab ob lub tais ntawm kua, ib tug dej thiab ib tug tsis, lub yim pandas universally slurped cia lub suab thaj brew.

Cov soj ntsuam ntawm kuaj muaj ntau yam uas muaj suab thaj, kuj muaj fructose, piam thaj, sucrose, lactose, maltose, thiab galactose. Nyob rau hauv txhua tus neeg mob, lub qab zib haus twb nyiam, thiab tshwj xeeb tshaj yog cov uas sawv daws yuav nrog fructose thiab sucrose, uas tib neeg pom li qhov sweetest.

Lub zaum kuj siv cellular tsom xam cais tawm qab zib receptor hlwb los ntawm pandas thiab twb tau mus qhia lawv teb rau suab thaj.

Lawv xav pandas yuav tuav on mus rau ua hauj lwm qab zib receptor hlwb vim hais tias, tshaj lub saj tau, tej zaum lawv yuav siv nyob rau hauv qhov chaw xws li lub pancreas thiab cov plab los pab nrog cog kev zom.

Tiam sis yog tias pandas hlub cov khoom qab zib, yog vim li cas lawv tsuas noj xyoob?

Nyob rau hauv captivity, pandas tsis txaus siab rau qab zib zaub mov — xws li Washington lub newest panda Menyuam dais Bao Bao, uas “yog thaj relishing Sweet qos raws li ib tug thawj zaub mov thaum lub sij hawm weaning,” hais tias Danielle Reed, uas tau sau daim ntawv luam tawm nyob rau hauv cov phau ntawv journal PLOS IB.

Tab sis pandas kuj yuav tsum ntau ntau xyoob, los yog lawv muaj mob. Ib tug hypothesis yog hais tias lub reedy cog muab ib yam dab tsi tsim nyog, yog li evolutionary siab tau coj lawv mus cia siab thiaj tau tuaj rau cov nroj tsuag.

Lwm cov tseem tab tom raug soj ntsuam, Beauchamp hais tias, yog hais tias rau pandas, xyoob ua tau qab qab li khoom qab zib.

Tom qab tag nrho, muaj yog muaj pov thawj tseeb txawv tsiaj kev zaub mov txawv — zoo li dag sweeteners, uas, rau pandas thiab lwm yam tsiaj, tsis saj qab zib.

Repost.Us – Republish no tsab xov xwm
Qhov tsab xov xwm, Tshiab txoj kev tshawb no exposes panda qab zib hniav, yog syndicated los ntawm AFP thiab yog muab tso rau ntawm no nrog kev tso cai. Copyright 2014 AFP. Tag nrho cov cai qhaib

Enhanced los ntawm Zemanta