NRC蛋雞飼養(yǎng)標(biāo)準(zhǔn)

1、（一）蛋雞的營(yíng)養(yǎng)標(biāo)準(zhǔn)（NRC。NRCg準(zhǔn)和企業(yè)標(biāo)準(zhǔn)的主要區(qū)別是維生素的量的差別,考慮道飼料的保存期限，企業(yè)標(biāo)準(zhǔn)維生素的量大大高于NR的準(zhǔn)。1 .生長(zhǎng)雞的營(yíng)養(yǎng)標(biāo)準(zhǔn)。表6生長(zhǎng)雞的營(yíng)養(yǎng)需要（NRC1998）白殼蛋雞褐殼蛋雞矮小型蛋雞0-6周7-12周12-18周0-6周7-12周12-18周0-9周10-13周14-18周體重450g980g1375g500g1100g1500g500g750g1050g代謝能Kcal/kg285028502900280028002850285027002700粗蛋白質(zhì)%181615171514精氨酸%賴氨酸%蛋氨酸%蛋十胱氨酸%色氨酸%蘇氨酸%亞油酸%礦物質(zhì)鈣%有

2、效磷%氯%鎂mg/kg600500400570470370鈉%鉀%銅mg/kg432碘mg/kg鐵mg/kg806060755656403030鎰mg/kg603030562828403020硒mg/kg鋅mg/kg403535383333554040維生素AIU150015001500142014201420800060006000D3IU200200200190190190200020002000EIU1055201515Kmg/kg433Bl2mg/kg生物素mg/kg膽堿mg/kg13009005001225850470320240240葉酸mg/kg煙酸mg/kg2711112632

3、2424泛酸mg/kg866叱哆醇mg/kg2核黃素mg/kg433硫胺素mg/kg2注：矮小型蛋雞營(yíng)養(yǎng)標(biāo)準(zhǔn)為企業(yè)標(biāo)準(zhǔn)，下同。2 .產(chǎn)蛋雞的營(yíng)養(yǎng)標(biāo)準(zhǔn)（NRC表7蛋雞產(chǎn)蛋期的營(yíng)養(yǎng)需要（NRC1998）不同采食量的日糧營(yíng)養(yǎng)濃度每只每天需要量（mg或IU）矮小型蛋雞采食量80100120100100g110g95g85g代謝能Kcal/kg29002900290029002900290027002750粗蛋白質(zhì)%150001500016500精氨酸%700700770賴氨酸%690690760蛋氨酸%300300330蛋十胱氨酸%580580645色氨酸%160160175蘇氨酸%470470520亞油酸%100010001100礦物質(zhì)鈣%325032503600有效磷%250250275氯%130130145鎂mg625500420505055500625鈉%150150165鉀%150150165銅mg/kg33碘mg/kg鐵mg/kg5645384556鎰mg/kg2520172025硒mg/kg鋅mg/kg4435293544維生素AIU/kg37503000250030030033045004750D3lU/kg375300250303033500600EIU/kg654810Kmg/kgB12mg/kg生物素mg/kg膽堿mg/k/p>