Cov teebmeem ntawm Teeb pom kev zoo rau qaib

Broiler Preferences for Lighting Explored

Lub peev xwm pom yog qhov tseem ceeb rau kev noj qab haus huv thiab kev zoo siab ntawm qaib. Raws li kev tshawb fawb los ntawm Angélica Signor Mendes ntawm Brazil's Technological Federal University of Paraná thiab cov npoj yaig los ntawm Purdue University hauv Tebchaws Meskas thiab Brazil's State University of Campinas, nqaij qaib muaj cov tshuab pom kev tshwj xeeb thiab feem ntau ntawm lawv tus cwj pwm yog kho los ntawm kev pom.

Broiler hens raug sim nyob rau hauv ntau yam teeb pom kev zoo, thiab lawv cov kev nyiam thiab cov khoom tsim tau raug tshuaj xyuas nyob rau hauv ib txoj kev tshawb no1 luam tawm nyob rau hauv Phau ntawv Journal of Applied Poultry Research.

Lub teeb-emitting diode (LED)-lit noog outperformed CFL-reareed noog nyob rau hauv txhua txoj kev (CFL). Thaum muab piv rau broilers ntawm tib lub hnub nyoog, txiv neej 7-hnub-hnub yug nyob rau hauv LED teeb pom kev zoo tshaj lawv cov CFL-lit counterparts nyob rau hauv cov nqe lus ntawm pub efficiency.

Cov kws tshawb fawb pib sim seb cov noog puas nyiam lub teeb dawb lossis daj los ntawm LED teeb. Thaum lub sij hawm sim, cov yeeb yaj duab tau coj cov noog kom pom tias leej twg nyiam. Ib qho kev sim thib ob piv qhov ua tau zoo ntawm LED thiab CFL-tshuaj broiler me nyuam qaib.

Kev tuag tus nqi, qhov hnyav noog, qhov hnyav ntxiv txhua hnub, kev noj zaub mov, thiab kev hloov pauv hloov pauv tag nrho tau ntsuas.

Cov hens tsis pom qhov kev nyiam coj tus cwj pwm mus rau lub teeb daj lossis xim dawb LED teeb pom kev zoo. Ntawm qhov tod tes, lub teeb pom kev dawb LED ua rau muaj kev noj zaub mov ntau ntxiv hauv cov noog thaum muaj hnub nyoog 21, 28, thiab 35 hnub.

Feem ntau, Mendes thiab cov kws sau ntawv tau pom tias cov noog tsa nyob rau hauv LED teeb pom kev zoo dua cov uas tau tsa hauv CFLs ntawm cov khoom tsim tau. Cov qaib ntawm tib poj niam txiv neej thiab hnub nyoog (xya hnub) tau pom tias muaj kev hloov pauv hloov pauv hloov pauv tau zoo thaum raug teeb pom kev zoo LED piv rau CFL teeb pom kev zoo.

Txawv Lub Teeb Xim rau Laying Hens

Kev tshawb fawb hauv Switzerland2 pom tias piv rau lub teeb dawb, cov hens raug teeb liab tsis tshua muaj siab phem thiab tsis tshawb nrhiav ntau dua. Tsis tas li ntawd, cov txiaj ntsig tau rov qab los nrog lub tswv yim tias lub teeb liab txhawb libido, txawm tias cov kws tshawb fawb pom tias qhov kev cuam tshuam no muaj feem cuam tshuam rau lub wavelength ntawm lub teeb dua li nws qhov kev siv zog.

Cov kws tshawb fawb ntawm Bern University of Applied Sciences tau hais tias txoj hauv kev zoo tshaj plaws rau lub tsev qaib ntxhw yog lub ntsiab lus ntawm kev sib cav rau ntau xyoo lawm, thiab tias muaj cov txheej txheem tshiab tau ua rau muaj kev txaus siab rau lub ntsiab lus. Cov neeg ua liaj ua teb nqaij qaib thoob plaws teb chaws Europe (xws li lub teb chaws xws li lub teb chaws Yelemees, Austria, Netherlands, thiab England), raws li tau piav qhia nyob rau hauv kev tshawb fawb tsis ntev los no luam tawm nyob rau hauv Poultry Science los ntawm Beat Huber-Eicher thiab coauthors, tab tom tig mus rau xim LED teeb pom kev zoo rau lawv lub tsev qaib. Lawv cov kev tshawb fawb qhia tau hais tias nyob rau hauv Switzerland, tag nrho cov tshiab systems tuaj txheem nrog LED qhov muag teev, feem ntau ntsuab.

Kev lag luam zoo zog, lub neej ntev, kev ntseeg siab, thiab cov nqi kho me me tsuas yog qee qhov txiaj ntsig ntawm LEDs tshaj li cov teeb pom kev zoo. LEDs kuj muab lub teeb monochromatic los ntawm ntau lub wavelengths.

Lawv saib mus rau hauv yuav ua li cas dawb, liab, thiab ntsuab LED teeb pom kev cuam tshuam rau tus cwj pwm thiab tso zis ntawm cov hens. Peb lub teeb pom kev zoo theem tau sib npaug kom cov qaib yuav pom tsis muaj qhov sib txawv ntawm lawv.

Txhua tus nees nkaum plaub pawg ntawm 25 nteg qe qe tau nyob hauv ib qho 5 zoo tib yam. Ob lub lis piam tau siv los hloov lawv mus rau lub teeb dawb LED.

Rau plaub lub lis piam tom ntej no, yim ntawm qhov random xaiv compartments yuav muaj liab LED (640nm) teeb pom kev zoo, thiab tib tus naj npawb yuav muaj ntsuab LED (520nm) teeb pom kev zoo (520nm). Qhov seem ob lub lis piam ntawm txoj kev tshawb no tau siv los soj ntsuam tus cwj pwm. Tus nqi ntawm qhov hnyav nce, tus nqi pub noj, lub sij hawm ntawm thawj nteg, thiab tag nrho cov qe nteg kuj tau taug qab.

Cov kev tshawb pom tau qhia tias lub teeb ntsuab muaj kev cuam tshuam me ntsis rau kev tshawb nrhiav tus cwj pwm, tab sis lub teeb liab tau zoo dua li lub teeb dawb ntawm kev txo qis kev ua phem. Raws li lawv qhov kev tshawb pom, Huber-Eicher thiab cov neeg ua haujlwm ua haujlwm tau xaus lus tias lub teeb liab nrawm nrawm rau kev loj hlob ntawm kev sib deev hauv nteg qe, thiab qhov kev cuam tshuam no yog vim qhov tseeb wavelength ntawm lub teeb ntau dua li qhov siv ntawm lub teeb. Txawm li cas los xij, lawv tau sau tseg tias qhov muaj peev xwm ntawm kev cuam tshuam ntxiv vim qhov siv lub teeb yuav tsum tsis txhob saib xyuas.

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