Partial replacement of fish meal with spray-dried blood powder to reduce phosphorus concentrations in diets for juvenile rainbow trout, Oncorhynchus mykiss (Walbaum)
Partial replacement of fish meal with spray-dried blood powder to reduce phosphorus concentrations in diets for juvenile rainbow trout, Oncorhynchus mykiss (Walbaum)
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用喷雾干燥血粉部分替代鱼粉，以降低虹鳟鱼幼鱼 Oncorhynchus mykiss (Walbaum) 饲料中的磷浓度
DOI：
10.1111/j.1365-2109.1995.tb00948.x
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发表时间：
1995
影响因子：
2
通讯作者：
H. Ketola
中科院分区：
文献类型：
--
作者：
J. Luzier;R. Summerfelt;H. Ketola
在饲料中添加5.7%、11.4%和22.7%的喷雾干燥血粉(蛋白质88.1%，总磷0.2%)，与对照组饲料中添加49%的鲱鱼粉(蛋白质2.1%)和不含血粉的饲料进行比较。我的吻(沃尔鲍姆)。添加5.7%、11.4%和22.7%血粉的日粮磷含量分别为1.22%、1.03%和0.84%，而对照组为1.36%。在12周内，四种日粮之间的平均特定生长(2.23-2.35d−1)或饲料转化率(1.04-1.09)差异不显著(P>；0.05)。添加22.7%血粉的日粮磷表观消化率(45.2%)高于对照组(31.6%)。在饲料中添加血粉(总磷16-20μg−1)的鲑鱼水中磷浓度的增加比投喂对照饲料(30μg−1总磷)的池塘低33-47%(P<；0.05)。用22.7%的血粉和17.0%的鱼粉配制的虹鱼饲料配方，与对照饲料相比，鱼粉含量减少了65.3%，总磷含量减少了38%，这是虹鱼现代饲料配方的代表。
Feeds formulated with 5.7, 11.4 and 22.7% spray-dried blood powder, also called blood flour (88.1% protein, 0.2% total phosphorus), were compared with a control diet with 49% herring meal (64% protein, 2.1% total phosphorus) and no blood powder for rearing juvenile rainbow trout. Oncorhynchus my kiss (Walbaum). Diets with 5.7, 11.4 and 22.7% blood powder contained 1.22,1.03 and 0.84% phosphorus, respectively, compared with 1.36% phosphorus in the control diet. Over 12 weeks, differences in mean specific growth (range 2.23-2.35 day−1) or feed conversion (range 1.04-1.09) among the four diets were not significant (P > 0.05). Apparent digestibility of phosphorus in the diet with 22.7% blood powder was greater (45.2%) than that in the control diet (31.6%). Increases in phosphorus concentrations in the water in which trout were fed diets with blood powder (range 16-20 μg−1 total phosphorus) were 33-47% less (P<0.05) than in tanks where trout were fed the control diet (30μg−1 total phosphorus). Feed formulations for rainbow trout prepared with 22.7% blood powder and 17.0% fish meal would contain 65.3% less fish meal and 38% less total phosphorus than present in the control diet, which was a representation of a modern feed formulation for rainbow trout.