de Matos Dantas Francisco, de Souza Yasmin Moreira, Santana Thiago Macedo, Dos Santos Driely Kathriny Monteiro, da Fonseca Flávio Augusto Leão, Gonçalves Ligia Uribe
Post-Graduate Program in Animal Science and Fishing Resources-PPGCARP, Federal University of Amazonas, Manaus 69067-055, AM, Brazil.
Agricultural Sciences College, Federal University of Amazonas, Manaus 69067-055, AM, Brazil.
Animals (Basel). 2024 Apr 12;14(8):1165. doi: 10.3390/ani14081165.
The aim of this study was to produce feed based on locally sourced ingredients for tambaqui farming in Amazon. Diets were formulated with increasing levels (0, 25, 50, 75 and 100%) of defatted black soldier fly larvae meal (BSFL) as a replacement for fish meal (FM), and cassava by-products in the same proportion (tuber residues, peel and leaves). A conventional diet (CO) was used as the control. Juvenile tambaqui (24.61 ± 1.14 g) were housed in 24 tanks in a recirculation aquaculture system. Neither diet rejection nor mortality were observed. Fish fed cassava by-products showed similar feed conversion rates (FCR 1.76); however, these values were worse than those observed in fish fed the CO (FCR 1.33). No differences were observed in the whole-body composition of the fish. The fillets of fish fed cassava by-products had a yellow color due the carotenoids present in the leaves. Dietary BSFL and cassava by-products can contribute to the sustainability of Amazonian aquaculture. Further studies with a lower proportion of cassava leaves in the diet formulation are recommended so as to ensure enhanced diet digestibility and less impact on the color of the fillets.
本研究的目的是利用当地食材为亚马逊地区的 tambaqui 养殖生产饲料。以脱脂黑水虻幼虫粉（BSFL）替代鱼粉（FM），并按相同比例（块根残渣、果皮和叶子）使用木薯副产品，配制了不同水平（0%、25%、50%、75%和 100%）的饲料。使用常规饲料（CO）作为对照。将幼体 tambaqui（24.61 ± 1.14 克）饲养在循环水养殖系统的 24 个水箱中。未观察到饲料拒食或死亡情况。喂食木薯副产品的鱼显示出相似的饲料转化率（FCR 1.76）；然而，这些值比喂食 CO 的鱼（FCR 1.33）更差。在鱼的全身成分方面未观察到差异。由于叶子中存在类胡萝卜素，喂食木薯副产品的鱼的鱼片呈黄色。日粮中的 BSFL 和木薯副产品有助于亚马逊水产养殖的可持续性。建议在日粮配方中使用比例更低的木薯叶进行进一步研究，以确保提高日粮消化率并减少对鱼片颜色的影响。
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