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1、重庆市林业植物检疫执法工作经验材料汇编编国家林业局植树造林司编国家林业局森防总站air,keephouseairfresh,cooling,moisture,reducethebodytemperatureofthechicken,whichisameasureofthechickenhousethefirstelementoftheenvironment.(1)theparameters:ventilationinsummerpeakdemandcalculations,4~5cubicmetresperkilogramofbodyweightperhour,harmfulgasconce
2、ntrationdoesnotexceed20ppmammonia,hydrogensulfide,l0ppm,co0.15%.(2)ventilationnaturalventilationandmechanical...5.thermalinsulationroofcoldseasonistheregionofgreatestheatloss,arealsohottowelsunlightthananyotherregion,sotheroofinsulationisthemostimportantregion,followedbythewalls,ifopenshedstomakedo
3、orsandWindowsswitchesfreely,andsealwell.Onmostofthewallsandroofinsulationmustbetakenorequivalentdevices,thermalinsulationmaterialsrequirehigherthermalresistance,goodthermalinsulationproperties,andthickentheNorthwallmustalsobetakenofthicknessandmeasuressuchasroofandceilingcanopy.Inplaceswithmorerain
4、,duetheeavesofroofsonbothsidesextendingoutward.Pheasants(pheasants)farmbuilding(a)sitechoosepheasantfieldsshouldbeselectedgaozaoterrain,sandtexture,welldrained,slightlytotheSouthofterrain.Mountainareasshouldbeselectedunderthesunny,spacious,ventilation,sunshine,wherethedrainageisgood.Pheasantfarmssh
5、ouldbebuiltinaquiet,safeplace,awayfromresidentialareas,factories,themaintrafficartery,buttakingintoaccountfeed,transportationproblems.Acleanwatersource,waterisnotcontaminated.Tohaveareliablepowersupply,notonlytomaintainnormallighting,air,keephouseairfresh,cooling,moisture,reducethebodytemperatureof
6、thechicken,whichisameasureofthechickenhousethefirstelementoftheenvironment.(1)theparameters:ventilationinsummerpeakdemandcalculations,4~5cubicmetresperkilogramofbodyweightperhour,harmfulgasconcentrationdoesnotexceed20ppmammonia,hydrogensulfide,l0ppm,co0.15%.(2)ventilationnaturalventilationandmechan
7、ical...5.thermalinsulationroofcoldseasonistheregionofgreatestheatloss,arealsohottowelsunlightthananyotherregion,sotheroofinsulationisthemostimportantregion,followedbythewalls,ifopenshedstomakedoorsandWindow
