Ava Williams
Ngakhale m'nyengo yozizira kwambiri, agalu amatha kugwira pansi ndi mapazi awo opanda kanthu popanda kuvutika ndi chisanu. Ofufuza a ku Japan mu magazini ya “Veterinary Dermatology” akufotokoza motero chifukwa cha chotenthetsera chamakono. Zimagwira ntchito ngati njira yosinthira kutentha: magazi ofunda, omwe amalowa amatenthetsa magazi obwerera m'miyendo, kuchititsa galu kutentha ndi kuzizira nthawi zonse.
Pampu yotentha m'kamwa
Pogwiritsa ntchito ma electron microscopy, ofufuzawo adapeza kuti mitsempha ndi mitsempha ya m'matumbo agalu imakhala yoyandikana kwambiri. Izi zimathandiza kuti kutentha kwa magazi a okosijeni m'mitsempha yochokera pamtima kuti isamuke mosavuta ku magazi opanda okosijeni m'mitsempha yomwe poyamba inakumana ndi kuzizira. Magazi ochokera m'mitsempha amathamangira mmbuyo akutenthedwa mpaka pamtima wa galu ndipo kuchokera pamenepo kupita mkatikati mwa magazi.
Mfundo ya dolphin ndi bakha
"Sizinadziwike kale kuti galu amagwiritsa ntchito kusinthanitsa kutentha," anatero Thomas Ruf wochokera ku Research Institute for Wildlife Ecology ku Vetmeduni Vienna. Komabe, mu zinyama zina, chodabwitsachi chimadziwika - mwachitsanzo mu dolphin, chomwe chimagwiritsidwa ntchito mu zipsepse, galu ndi mphuno yamphongo, komanso phazi la bakha. Apo ayi, abakha amatha kusungunuka ngati ataima pa ayezi kwa nthawi yaitali. Umu ndi momwe amasungira kutentha kwa phazi lawo paziro. ”
Zinyama zimakhala ndi chinyengo chapadera chothokoza chifukwa chakuti minofuyo siwonongeka. “Ziwalo zomwe zakhudzidwa zimasintha malinga ndi nyengo. M’dzinja, nyamazo zimasunga mafuta ambiri a mono- ndi polyunsaturated fatty acids monga mafuta a nsomba, omwe amawathandiza kuti azitha kusintha moyenera,” akufotokoza motero Ruf. Nyama zomwe zimapita ku hibernation zimapambana kusintha thupi lonse motsatira mfundo yofanana. Mwachitsanzo, m'dzinja, marmots amayang'ana makamaka zomera zomwe zili ndi mafuta osatulutsidwa - ndipo m'nyengo yozizira alibe vuto lozizira mpaka madigiri awiri onse.
Agalu ena sakhala m'nyengo yozizira
Malinga ndi mfundo yofanana ndi ya nkhandwe ya makolo, kutentha kwa mphako kwa agalu kumatsikanso mpaka kuziro kukakhala kuzizira. Komabe, izi sizikugwira ntchito kwa aliyense mtundu wa galu. “Agalu ena sali oyenerera ku chipale chofeŵa ndi ayezi chifukwa amaŵetedwa chifukwa cha makhalidwe ena,” anatero wofufuzayo. Pankhaniyi, wapadera nsapato za chisanu chifukwa agalu akhoza kuthandiza. Amapereka zowonjezera zowonjezera ndipo samangopereka chitetezo ku chimfine, komanso kuchokera ku mchere wamsewu ndi grit.