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Cwj pwm ua kev ntsuas kom ntseeg tau rau kev ntsuas qhov kev noj qab haus huv ntawm kev tso hens. Qhov chaw teeb pom kev tsis tau cuam tshuam qhov kev taug kev, sawv, thiab pub tus cwj pwm ntawm cov qaib. Cov poj ntsuam warloki li al. (1992) pom tias cov noog tau pom taug kev muaj kev sib raug zoo dua ntawm ob lub teeb ci ntau dua li qhov kev cia siab rau ib ncig ntawm 30% incandescent rau 70% fluorescent. Nyob rau hauv cov kev sim tam sim no, sedentary thiab rov ua tus cwj pwm tau loj dua nyob rau hauv fluorescent (fl) thiab xiav lub teeb (bl). Thov kom Al. (1997) qhia ib qho kev soj ntsuam zoo sib xws rau lub teeb xiav, txawm li cas los Kristensen li al. (2007) Txawm hais tias kev coj ua uas zaum tau tsis muaj kev cuam tshuam los ntawm cov chaw.
Hughes (1982) Potsits uas anomalous kev coj ua hauv kev tso cov hens, xws li feather pecking thiab cannumism, tej zaum yuav tau cuam tshuam los ntawm kev ua yeeb yam hauv lub vaj tse. Fluorescent teeb pom kev xav tau kom raug txo qis thiab rov coj tus cwj pwm, raws li lub teeb ci ntsa iab uas yog induce ntxhov siab rau cov noog. Qhov no yog pov thawj tsis yog qhov kev sim siab tam sim no, raws li pom tau los ntawm cov qib qis ntawm plaub-plaub kev coj ua thiab kev txhoj puab. Feather piecking thiab txhoj puab tus cwj pwm tau nce nyob rau hauv qab xiav; Txawm li cas los xij, cov kev hloov pauv yuav tsis tau txais qhov tseem ceeb ntawm lub ntsiab lus. Qhov kev tshawb pom ntawm Feather Piecking thiab kev coj ua nruj ua tsiv ntawm cov ntaub ntawv ntawm Leighton li al. (1989), uas qhia tias qhov chaw teeb tsa tsis cuam tshuam cov haujlwm no. Cov txiaj ntsig ntawm kev sim tam sim no tau tshwm sim vim yog kev txo qis hauv nthwv dej faib ntawm xiav lub teeb (< 500 nm). Wavelengths of light extending from red to infrared are essential for the proper functioning of the hypothalamus and pituitary gland. The inadequate output of long-wavelength light evidently heightened the actions of hens. Activities including as walking, feather pecking, and hostility were elevated under blue light. Savoury and Mann (1999) observed that pecking and cannibalism may be more prevalent in groups with elevated activity levels. Perhaps, chickens sought a means to mitigate this deficiency. Boshouwers and Nicaise (1993) indicated that physical activities are more pronounced under fluorescent light compared to incandescent light. In the current trials, hens exhibited greater activity under fluorescent light compared to incandescent light; however, aberrant behaviours such as feather pecking and aggression were less prevalent under fluorescent light than under incandescent light. Moinard et al. (2001) reported that fluorescent light considerably diminished the occurrence of tail injuries and tended to decrease the incidence of wing injuries resulting from feather pecking when compared to incandescent light. The increased activity of chickens under blue light corresponded with an extended feeding duration (66.1%), perhaps indicating a heightened energy need for such activity. Consequently, light sources influenced eating behaviour; nevertheless, the observed difference lacked statistical significance, as noted by Vandenberg and Widowski (2000), who discovered that feeding happened more frequently than anticipated under incandescent light compared to high-pressure sodium light (HPS).
Qhov thib ob kev sim ua kom pom tseeb cov txiaj ntsig zoo rau cov ntawm thawj zaug kev sim. Ib zaug ntxiv, taug kev, feather picing kev ua si, thiab txhoj puab heev tau nce nyob rau hauv lub teeb xiav, tshwj xeeb ntawm kev siv siab lub teeb. Newberry li al. (1988) pom tau nce qib wandering thiab tag nrho cov kev ua kom muaj teeb meem loj (6 lux), txawm hais tias pub mis thiab kev noj haus tsis muaj kev cuam tshuam. Kev cuam tshuam tsis zoo ntawm kev sib cuam tshuam ntawm lub teeb xiav thiab lub siab lub teeb ntawm feather pecking yog sau tseg ntawm feathers thiab Duncan (1972), thiab Appleby li al. (1992). Thiaj li, lub teeb ci cuam tshuam rau cov plumage muaj mob ntawm hens los ntawm kev cuam tshuam plaub pecking, raws li pom los ntawm van emous li al. (2003), uas tau hais tias cov teeb tsa sib txawv uas tuaj yeem cuam tshuam plumage kev mob raws li qhov zaus ntawm plaub ntawm plaub. Txawm li cas los xij, qhov no tshwm sim cov kev tshawb pom ntawm XIE li al. (2008), uas tau hais tias lub teeb xiav yuav txo cov kev ntxhov siab ntawm cov neeg muaj kev ntxhov siab hauv cov neeg muaj kev txom nyem los ntawm kev txo cov ntshav siab interleuin {8}}} ß qib. Zuag qhia tag nrho, txo feather pecking kev ua si thiab qis dua tshwm sim ntawm kev siv lub teeb tsis zoo thoob plaws txhua qhov kev tshawb nrhiav lub teeb pom kev zoo li kev tshawb pom ntawm Hester ntawm Hester li al. (1987), Classen li al. (1994), Nixey (1994), Manser (1996), Sherwin (1998), thiab Tauson (2005). Shinmura li al. (2006) Pom tsis muaj qhov sib txawv tshwj xeeb hauv kev ua siab phem ua ntej thiab tom qab kev txo qis ntawm lub teeb siv hauv kev ua vaj tse. Raws li peb cov kev tshawb pom, peb pom zoo ua haujlwm lub teeb tsis muaj teeb meem los tswj hwm tus cwj pwm uas muaj hens, raws li tau npaj siab los ntawm Hughes (1982) rau txhua qhov chaw.
Tag
Hauv kev xaus, peb txoj kev tshawb fawb pom tias lub teeb tsa lub teeb pom kev zoo nrog cov cwj pwm ntawm kev coj cwj pwm ntawm kev coj tus cwj pwm thiab, yog li ntawd, yuav tsum tsis txhob siv raws li qhov teeb pom kev zoo xwb.
Lub ntsiab
Kev coj cwj pwm ntawm kev tso hens yog cuam tshuam los ntawm teeb pom kev zoo hauv tsev. Qhov cuam tshuam ntawm kev teeb pom kev zoo thiab cov ntaub ntawv sau tau piav qhia, whereas, kev paub txog cov teeb pom kev zoo (xaim ntev spectrum (Zuag ntev ntev) tseem txwv. Yog li ntawd, ob qhov kev sim tau ua los kawm txog cov xwm txheej ntawm cov teeb meem nruab hnub sib txawv Hens tau khaws cia hauv cov cwj mem nrog cov phab ntsa opaque thiab tau pom ncaj qha rau tus cwj pwm sib txawv ntau zaus hauv ib as thiv. Nws tau pom tias kev coj ua thiab kev coj ua phem tau nce siab dua hauv cov noog hauv qab kev siv siab lub teeb. Nyob rau hauv tib txoj kev, xiav lub teeb tau tshwm sim nyob rau hauv cov kev ua haujlwm siab dua ntawm hens thiab ntau dua zaus ntawm feather paping thiab txhoj puab heev. Noog ntxhua khaub ncaws kom txaus siab dua nyob rau hauv lub teeb fluorescent. Nws tau xaus lus tias feem nthwv dej ntev ntev yuav tsum tsis txhob siv los ua lub teeb ci thiab lub teeb ci siab yuav tsum zam hauv txheej txheej.
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