Noog yog cov vertebrates endothermic, uas yog, ntshav sov, uas nws tus yam ntxwv tseem ceeb yog muaj cov plaub uas npog lawv lub cev. Cov no muaj cov duab sib txawv nyob ntawm seb lawv nyob qhov twg ntawm lub cev, nrog rau cov qauv sib txawv uas yuav nyob ntawm lub sijhawm ntawm tus noog lub neej. Muaj cov tsiaj uas thaum yug los tsis muaj plaub, lwm tus uas yug los nrog ob peb nqes npog lub cev thiab qee qhov twb muaj cov plaub zoo uas tiv thaiv lawv lub cev. Tab sis tiag tiag Puas muaj noog tsis muaj plaub?
Yog koj xav paub qhov no thiab lwm yam peculiarities ntawm noog, txuas ntxiv nyeem tsab xov xwm no ntawm peb lub xaib thiab koj yuav pom tias tag nrho cov noog muaj plaub los tsis yog.
Pob noog nyob tsis muaj tis?
Feathers, zoo li cov plaub hau ntawm cov tsiaj, ua ntau yam haujlwm, nrog rau cov thermoregulation thiab kev tiv thaiv, tso cai rau lawv ya thiab, thaum lub sij hawm yug me nyuam. lub caij, ua kev sib hais plaub. Nws kuj ua rau lawv yooj yim dua rau lawv paub cov tib neeg ntawm tib hom thiab, ntawm qhov tod tes, tso cai rau lawv camouflage lawv tus kheej tawm tsam cov tsiaj txhu.
Nyob rau hauv lub cev ntawm cov noog, cov plaub raug faib thiab loj hlob nyob rau hauv tej chaw (pterylum los yog feathery cheeb tsam) thiab interspersed nrog tej thaj chaw uas lawv tsis loj hlob, hu ua apteryles. Yog li ntawd muaj ntau hom plaub thiab lawv yog tam sim no nyob rau hauv tag nrho cov noog, yog li tsis muaj ib hom tsiaj uas ib txwm tsis muaj lawv thaum laus tag. Cov neeg laus poob lawv cov plumage tsawg kawg ib xyoos ib zaug, uas yog, lawv poob thiab hloov qee lossis tag nrho lawv cov plaub, feem ntau tom qab lub caij yug me nyuam.
Tseem muaj hom tsis muaj plaub rau lub taub hau, piv txwv li. Hauv lwm cov noog, cov txiv neej tsis muaj lub hauv siab feathers thiab yog "liab qab" los nthuav tawm cov xim ci heev thiab yog li nyiam cov poj niam thaum lub caij yug me nyuam. Nyob rau hauv cov ntaub ntawv ntawm lwm cov noog, lawv poob cov plaub ntawm lub ventral cheeb tsam mus incubate lub qe; cheeb tsam no yog hu ua "incubation thaj" thiab zoo nkag nrog cov hlab ntsha. Ntawm no cov epidermis nyias nyias thiab cov rog ploj, uas ua rau nws ua tau rau cov noog kom zoo dua cov cua sov rau lawv cov qe thaum incubating.
Nyob rau hauv no tsab xov xwm no peb qhia koj ib daim ntawv teev cov tsiaj nrog feathers - Sau npe nrog cov npe thiab xav paub.
Piv txwv noog tsis muaj tis
Raws li peb tau hais lawm, cov noog ib txwm muaj plaub hau npog lawv lub cev thiab, qee zaum, ib txwm muaj lossis vim qee yam mob, lawv yuav tsis muaj nyob hauv qee thaj tsam ntawm lub cev. Tsis tas li ntawd, muaj qee cov noog uas muaj feathers zoo ib yam li cov plaub hau, uas ua rau muaj kev ntseeg tias lawv tsis muaj lawv. Cia peb saib qee qhov piv txwv:
Kiwi (Apteryx)
Cov kiwi (noog ntawm lub genus Apteryx) yog ib tug noog uas tsis ya uas muaj me ntsis kev loj hlob ntawm nws cov tis thiab lawv yuav luag negligible. Qhov no yog ib qho piv txwv ntawm ib tug noog uas feem ntau xav tias tsis muaj plaub, tab sis qhov tseeb nws yog me feathers uas tsis tau txhim kho vim li cas evolutionary thiab hloov mus rau lub ecosystem uas lawv nyob, uas muab lawv cov tsos ntawm bristles. Lawv yog xim av xim av, nrog cov xim sib txawv nyob ntawm cov hom lus nug.
Vultures
Qee hom vultures (ntawm qhov kev txiav txim Cathartiformes), xws li buzzard vulture, tsis muaj plaub ntawm lawv lub taub hau Nov yog vim yog kev hloov mus rau hom zaub mov uas lawv muaj, txij li lawv yog cov noog scavenger, uas yog, lawv pub rau cov tsiaj tuag, thiab lub taub hau nrog plaub yuav tsis tu ncua nrog cov ntshav thiab lwm yam kua dej thaum pub mis thiab yuav nyuaj. kom huv si.
Koj kuj tseem xav paub seb dab tsi muaj peev xwm ua tau ib lub vulture yuav tsum tau nyob.
Turkeys
Lwm cov noog uas tsis muaj plaub yog hom ntawm Phasianidae tsev neeg xws li qaib ntxhw, uas kuj tsis muaj plaub rau ntawm taub hau thiab caj dab, zoo li qee cov storks (tsev neeg Ciconiidae) uas tseem tsis muaj plaub ntawm lawv lub taub hau thiab caj dab.
Nyob rau hauv tsab xov xwm no peb piav qhia qhov twg peacock nyob.
Caripelado bulbul
Ntawm qhov tod tes, Pycnonotus hualon los yog caripellated bulbul, yog ib tug Asian songbird thiab ib txwm nyob rau teb chaws Nplog uas muaj antsej muag tawv , yog, tsis muaj plaub, thiab uas tau tshawb pom los ntawm science ob peb xyoos dhau los.
Lwm cov noog ntawm genus Fregata, xws li Fregata magnificens, tsis muaj plaub nyob rau hauv lub gular cheeb tsam (ntawm caj dab), thiab es tsis txhob muaj ib tug gular hnab
Noog tsis muaj plaub rau lwm yam
Lwm zaus, noog yuav tsis muaj plaub vim yog:
- Viral kab mob: xws li ib qho uas cuam tshuam rau cov noog psittaciform (parrots, cockatoos thiab lwm yam), xws li lub npe beak Cov kab mob thiab cov plaub, tshwm sim los ntawm tus kab mob uas tawm tsam cov kab mob loj hlob ntawm cov plaub thiab ua rau lawv malformation thiab necrosis, yog li lawv tsis loj hlob ib txwm thiab noog poob lawv.
- Txoj kev loj hlob ntawm cov plaub: kuj noog bred nyob rau hauv captivity yuav nthuav anomalies nyob rau hauv txoj kev loj hlob ntawm plaub, qhov no yuav yog vim kom tsis muaj vaj tse nyob, muaj kab mob los ntawm ecto thiab endoparasites xws li qee cov mites, ntshauv lossis fleas uas tuaj yeem zom cov plaub thiab ua rau lawv poob. Cov kab mob ectoparasites no tsis tsuas yog ua rau lawv cov tawv nqaij thiab plumage puas tsuaj, tab sis kuj tseem ua rau lawv txoj kev noj qab haus huv tsis muaj zog, thiab tuaj yeem ua rau mob ntshav qab zib thiab teeb meem ua pa yog tias lawv tsis kho raws sijhawm.
- Kev coj cwj pwm tsis zoo: kab mob kab mob, kab mob metabolic xws li hypothyroidism, ua xua rau qee yam zaub mov, co toxins uas muaj nyob hauv ib puag ncig lossis kev coj cwj pwm. kev cuam tshuam, xws li kev tu cev ntau dhau, hu ua noog khaus los ntawm kev ntxhov siab thiab / lossis kev ntxhov siab. Nyob rau lub sijhawm no koj kuj yuav txaus siab rau Kuv tus parrot plucks nws cov plaub - Ua rau thiab kev daws.
- Follicular cyst: nws yog ib yam kab mob hauv lub cev thiab tseem ua rau cov plaub hau tsis loj hlob ib txwm, tab sis hloov mus rau sab hauv, ua rau cov noog ntau dua. ntau plumage yog prone.
- Chrysanthemum kab mob: Lwm yam kab mob hauv lub cev yog chrysanthemum kab mob, uas ua rau plaub dheev tsis loj hlob. Qhov no yog vim muaj teeb meem nyob rau hauv cov kev cai ntawm lub cev kub, uas ua rau physiological imbalances.
- : yog cov xeeb ntxwv uas muaj cov xeeb leej xeeb ntxwv (cov xeeb leej xeeb ntxwv yug tsis muaj kev loj hlob thiab vam khom rau niam txiv tag nrho), thaum lub sij hawm hatching ntawm lub qe lawv tsis muaj feathers los tiv thaiv lawv los yog tej zaum lawv yuav muaj ib tug kab ntawm lawv. Raws li tus menyuam qaib loj tuaj, cov plaub tuaj yeem tshwm sim ua ntej tawm hauv lub zes.
Nyob rau hauv tag nrho cov xwm txheej no (tshwj tsis yog rau cov menyuam mos) los ntawm kev kuaj mob los ntawm tus kws kho tsiaj, nws muaj peev xwm kuaj tau thiab tswj tus mob.
