华北农学报
華北農學報
화북농학보
ACTA AGRICULTURAE BOREALI-SINICA
2007年
2期
175-179
,共5页
左建军%汪儆%张铁鹰%冯定远%王修启%印遇龙%范明哲
左建軍%汪儆%張鐵鷹%馮定遠%王脩啟%印遇龍%範明哲
좌건군%왕경%장철응%풍정원%왕수계%인우룡%범명철
生长猪%菜粕%豆粕%磷%内源排泄量%真消化率
生長豬%菜粕%豆粕%燐%內源排洩量%真消化率
생장저%채박%두박%린%내원배설량%진소화솔
选用6头健康大白×长白阉公猪为消化试验动物,采用6×6拉丁方设计,设6个磷水平(0.11%,0.22%,0.33%,0.44%,0.55%,0.53%),以豆粕、葡萄糖、玉米淀粉等为基础,以菜粕为待测植物性饲料,配制半纯合试验饲粮,其中菜粕和豆粕为磷唯一来源.日粮中添加0.35%Cr2O3作为外源指示剂.分6个试验期(每期8 d,6 d适应期,2d收粪期),测定了生长猪内源磷排泄量及菜粕和豆粕磷的真消化率.结果表明:生长猪内源磷的排泄量为0.210 8g/kg DMI,菜粕、豆粕及6个半纯合饲粮中磷表观消化率分别为-0.305,25.77%,7.25%,16.29%,16.54%,23.62%,15.04%,28.97%,而其真消化率分别为10.21%,32.94%,26.22%,23.62%,22.95%,23.57%,22.81%,32.94%.说明饲料磷真消化率更能反映动物对饲料磷消化吸收的真实情况,具有相对较好的重演性.
選用6頭健康大白×長白閹公豬為消化試驗動物,採用6×6拉丁方設計,設6箇燐水平(0.11%,0.22%,0.33%,0.44%,0.55%,0.53%),以豆粕、葡萄糖、玉米澱粉等為基礎,以菜粕為待測植物性飼料,配製半純閤試驗飼糧,其中菜粕和豆粕為燐唯一來源.日糧中添加0.35%Cr2O3作為外源指示劑.分6箇試驗期(每期8 d,6 d適應期,2d收糞期),測定瞭生長豬內源燐排洩量及菜粕和豆粕燐的真消化率.結果錶明:生長豬內源燐的排洩量為0.210 8g/kg DMI,菜粕、豆粕及6箇半純閤飼糧中燐錶觀消化率分彆為-0.305,25.77%,7.25%,16.29%,16.54%,23.62%,15.04%,28.97%,而其真消化率分彆為10.21%,32.94%,26.22%,23.62%,22.95%,23.57%,22.81%,32.94%.說明飼料燐真消化率更能反映動物對飼料燐消化吸收的真實情況,具有相對較好的重縯性.
선용6두건강대백×장백엄공저위소화시험동물,채용6×6랍정방설계,설6개린수평(0.11%,0.22%,0.33%,0.44%,0.55%,0.53%),이두박、포도당、옥미정분등위기출,이채박위대측식물성사료,배제반순합시험사량,기중채박화두박위린유일래원.일량중첨가0.35%Cr2O3작위외원지시제.분6개시험기(매기8 d,6 d괄응기,2d수분기),측정료생장저내원린배설량급채박화두박린적진소화솔.결과표명:생장저내원린적배설량위0.210 8g/kg DMI,채박、두박급6개반순합사량중린표관소화솔분별위-0.305,25.77%,7.25%,16.29%,16.54%,23.62%,15.04%,28.97%,이기진소화솔분별위10.21%,32.94%,26.22%,23.62%,22.95%,23.57%,22.81%,32.94%.설명사료린진소화솔경능반영동물대사료린소화흡수적진실정황,구유상대교호적중연성.
