SDBC营养价值评定

喷雾干燥破膜血球蛋白粉在断奶仔猪上的营养价值评定

邓莹莹

[摘要] 试验选用体重15.6±1.98kg DLY 仔猪12头，在测定血球蛋白粉常规养分和氨基酸含量基础上进行消化代谢试验。采用单因子试验设计，用无氮日粮和血球蛋白粉半纯合日粮法测定血球蛋白粉中粗蛋白和能量的消化利用率及猪回肠末端氨基酸的表观消化率。结果表明：血球蛋白粉含粗蛋白91.87%，总能20.96MJ/kg，总氨基酸71.85%，其中主要限制性氨基酸：赖氨酸、蛋氨酸、苏氨酸、和异亮氨酸含量分别为6.32，0.91，2.30，0.36%。粗蛋白表观和真消化率分别为92.69%和94.34%，总氨基酸回肠表观消化率80.83%，消化能19.28MJ/kg，代谢能19.03MJ/kg。由此可见，血球蛋白粉的能量和蛋白质氨基酸营养价值都很高。

[关键词] 血球蛋白粉 营养价值 氨基酸消化率 仔猪

Nutritional Value of Spray-dried Animal Blood Cells for Weaned Piglets

[Abstract] A digestibility trial to evaluate the nutritional value of spray-dried animal blood cells(SDBC) was conducted on the basis of analyzing the common composition and amino acid content. Twelve 15.6±1.98kg three-way crossbred DLY piglets were used in the experiment to determine the digestibility of crude protein, energy and amino acids of SDBC. N-free diet and semi-purified diet with SDBC as only protein source were used in two treatments each with six replications. The results showed that: SDBC includes crude protein 91.87%, GE 20.96 MJ/kg, general amino acids 71.85%, some of its main limited amino acid are: Lys 6.32%, Met 0.91%, Thr

2.30%,Ile 0.36%. The apparent and true digestibility of the crude protein were 92.69% and 94.34%, the apparent ileal digestibility of amino acids was 80.83%,the digestible energy and metabolic energy were 19.28MJ/kg and 19.03MJ/kg. It is concluded that SDBC has high nutritional value in terms of energy, protein and amino acids.

[Key words] Spray-dried animal blood cells; nutritional value; amino acids digestibility；piglet

在我国饲料原料结构中，蛋白质饲料紧缺，特别是动物性蛋白饲料紧缺尤为严重，但许

多饲料生产厂家习惯于用动物性蛋白饲料和植物性蛋白饲料配合来提供饲料成品的蛋白质，由于鱼粉、大豆资源日趋减少，价格一直高居不下，因此寻找廉价、优质且供应稳定的替代