Spray-dried haemoglobin meal, a by-product and derivative of the swine processing industry, is formed when haemoglobin is separated hygienically from pig's blood. A 120-days feeding trial using snub nose pompano Trachinotus blochii (1.01 ± 0.02 g) tested spray-dried haemoglobin meal (SHM) as an ingredient in six iso-nitrogenous (crude protein of 50%) and iso-lipidic (crude fat of 8%) diets, namely, a diet with 0% SHM (control) and five diets replacing fishmeal with SHM at 4, 8, 12, 16 and 20%. Weight gain percentage (WG%) significantly decreased (p < 0.05) when fish were fed diets with 12, 16 and 20% SHM inclusion levels. Feed conversion ratio and survival significantly decreased (p < 0.05) when fish were fed diets with 16 and 20% SHM inclusion levels. However, visceral somatic index, hepatosomatic index, condition factor and proximate composition were not affected (p > 0.05) by SHM inclusion levels. As an ingredient for pompano feed, SHM has digestibilities for protein, lipid and dry matter at 89, 78 and 45% respectively. No apparent pathological changes were observed in the intestines. However, physiological changes in the liver have been seen in fish fed diets containing 12, 16 and 20% of SHM. Based on the quadratic regression model at the maximum response of weight gain percentage, the optimum inclusion level of SHM was estimated to be 3.08% (5.87% SHM protein in the diet).

中文翻译：

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饲喂喷雾干燥血红蛋白粉作为鱼粉蛋白质替代品的金丝雀的性能、消化率、肠道和肝脏形态

喷雾干燥血红蛋白粉是猪加工业的副产品和衍生物，是从猪血中卫生分离血红蛋白时形成的。一项 120 天的饲喂试验使用金丝瓜Trachinotus blochii (1.01 ± 0.02 g) 测试了喷雾干燥血红蛋白粉 (SHM) 作为六种异氮（50% 粗蛋白质）和异脂（粗脂肪）的成分。 8%) 日粮，即含有 0% SHM（对照）的日粮和用 4、8、12、16 和 20% 的 SHM 代替鱼粉的五种日粮。当以 12%、16% 和 20% 的 SHM 含量水平喂养鱼时，体重增加百分比 (WG%) 显着降低 ( p  < 0.05)。饲料转化率和成活率显着下降（p < 0.05) 当鱼饲喂含有 16% 和 20% SHM 的日粮时。然而，内脏躯体指数、肝躯体指数、状况因素和近似组成不受SHM 包含水平的影响 ( p  > 0.05)。作为 pompano 饲料的成分，SHM 对蛋白质、脂质和干物质的消化率分别为 89%、78% 和 45%。肠道未见明显病理变化。然而，在含有 12%、16% 和 20% SHM 的鱼饲料中观察到肝脏的生理变化。根据体重增加百分比最大响应的二次回归模型，SHM的最佳添加水平估计为3.08%（饮食中5.87%的SHM蛋白）。