A study was conducted to evaluate the effect of black soldier fly (Hermetia illucens) larval meal (BSF) in practical diets of African catfish (Clarias gariepinus). Four diets were formulated to contain levels of fishmeal replacement at 0, 25, 50, and 100% with BSF. A total of 360 fingerlings (2.67 ± 0.0 g/fish) were randomly distributed into 12 tanks (30‐L capacity) containing 30 fish each and fed with the respective diet to apparent satiation. After 6 weeks of feeding, growth performance and nutrient utilization indices of the groups fed 25 and 50% BSF diets were not significantly different (p > .05) from the group fed the fishmeal‐based control diet. However, further increase in the replacement of fishmeal with BSF (100%) led to a significant (p < .05) reduction in the growth, feed intake, and protein efficiency ratio of the catfish, whereas body index and survival were not affected. The hematological parameters among the BSF fed groups showed no significant variation (p > .05) compared with the control group. From the current study, it was clear that fishmeal could be replaced with BSF up to 50% without affecting the growth performance, nutrient utilization, survival, and welfare of C. gariepinus fingerlings.

中文翻译：

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对非洲cat鱼（Clarias gariepinus）日粮中的黑士兵蝇（Hermetia illucens）幼虫粉的初步评估：对生长，身体指数和血液学参数的影响

进行了一项研究，以评估黑士兵蝇（Hermetia illucens）幼虫粉（BSF）在非洲cat鱼（Clarias gariepinus）的实际饮食中的作用。配制了四种日粮，分别含有0、25、50和100％的BSF替代鱼粉。将总共​​360种鱼种（2.67±0.0 g /鱼）随机分配到12个鱼缸中（30–L容量），每个鱼池中有30条鱼，并用各自的饮食喂食，以使其明显饱食。饲喂6周后，饲喂25％和50％BSF日粮的组的生长性能和养分利用指数与饲喂 基于鱼粉的对照日粮组没有显着差异（p > .05）。但是，用BSF（100％）代替鱼粉的进一步增加导致显着（p  <.05）reduction鱼的生长，采食量和蛋白质效率比降低，而身体指数和存活率未受影响。 与对照组相比，BSF喂养组的血液学参数无明显变化（p > .05）。从目前的研究来看，很明显，可以用BSF代替50％的鱼粉，而不会影响gariepinus鱼种的生长性能，养分利用率，存活率和福利。