Fermented soybean meal (FSM) could be used to replace up to\r\n30 percent of fishmeal used in diets for farmed largemouth bass diets.So suggest the authors of a new study, who have published\r\nthe re...
Fermented soybean meal (FSM) could be used to replace up to\r\n30 percent of fishmeal used in diets for farmed largemouth bass diets.
So suggest the authors of a new study, who have published\r\nthe results of an eight week investigation into the effects on growth\r\nperformance, intestinal histology and microbiota of largemouth bass (Micropterus salmoides) when replacing\r\nfish meal with FSM and soybean meal (SM).
The researchers, from Shanghai Ocean University,\r\ncompared the effects of a basal diet that contained 350 g/kg FM with those in\r\nwhich the FM was replaced with SM and FSM at the ratios of 30 percent and 60\r\npercent (SM‐30, SM‐60, FSM‐30 and FSM‐60), respectively.
Groups of largemouth bass, which began the trial at an\r\naverage of 4.43g, were fed the diets for eight weeks.
The results showed that weight gain of fish fed with FSM‐60\r\nand SM‐60 diets was significantly lower, and feed conversion ratio of SM‐30, SM‐60\r\nand FSM‐60 groups was significantly higher than the CON group (p <\r\n.05). The intestinal villus height of SM‐60 group and the villus width of SM‐60\r\nand FSM‐60 group were significantly lower than the CON group (p < .05).\r\nThe 30% FM replacement by SM and FSM significantly increased the abundance\r\nof Cetobacterium and Mycoplasma, respectively (p < .05).
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The researchers conclude that fermented soybean meal could\r\nreplace 30 percent of the fishmeal in standard largemouth bass diets without\r\nnegative impacts on their growth performance, while the soybean meal should be\r\ncontrolled below 30 percent.
Source: The Fish Site
Ditulis oleh
Tim Minapoli
Kontributor
Pakar di bidang akuakultur dengan pengalaman lebih dari 15 tahun. Aktif berkontribusi dalam pengembangan industri perikanan Indonesia.