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仔猪饲喂血制品中磷的标准全肠道消化率的研究

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摘要 试验旨在测定血浆蛋白粉(SDPP)和其它两种干燥血粉中磷在仔猪上的表观全肠消化率(ATTD)和标准全肠消化率(STTD)。试验共有4种日粮,3种试验日粮分别以3种血制品(SDPP、猪血粉、禽血粉)作为唯一磷来源的日粮,试验组日粮组成为:玉米淀粉60%~60.4%、蔗糖15%、豆油3%、石粉1.3%或0.9%、食盐0.4%、维生素矿物质预混料0.3%,以及添加量均为20%的3种血制品原料第4种日粮为无磷日粮,用于测定仔猪内源磷损失量。试验选用24头仔猪[初始重(18.8±3.2)kg],随机分为4个处理组,每个处理组6头试验经预饲5d后进行5d的全收粪试验结果表明:仔猪磷的表观全肠消化率以SDPP最高(91.31%),与猪血粉(76.46%)和禽血粉(57.67%)相比差异极显著(P〈0.01);同时,猪血粉的磷表观全肠消化率也极显著高于禽血粉(P〈0.01)仔猪磷的标准全肠消化率SDPP(102.79%)显著高于猪血粉(89.74%)和禽血粉(86.11%)(P〈0.05),猪血粉与禽血粉之间则无明显差异,试验结果表明,血制品是有机磷的优质来源,SDPP的磷标准全肠消化率较猪血粉和禽血粉更高。
出处 《饲料工业》 北大核心 2013年第2期61-64,共4页 Feed Industry
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