Abstract
The purpose of this research was to study the effectiveness of bentonite clay of aluminosilicate origin (Askangel) from Georgia as a natural adsorbent of mycotoxins in aquaculture, specifically in trout feeding. The study was conducted on rainbow trout divided into three test groups, each receiving different percentages of Askangel (0.1%, 0.15%, 0.2%) in their feed. A synthetic adsorbent was added at 0.1% to the control group’s feed. At the end of the experiment, the weight gain for fish was as follows: 205±0,62 g in the IV test group and 203±0,72 g in the III test group, 189±0,85 g in the II test group, and 175 ±0,83 g in the control group. Fish survival rates were 97% in the III and IV test groups, 95% in the II test group, and 92% in the control group. The feed conversion ratio (FCR) was 0.9-0.92 in the III and IV test groups, 1 in the II test group, and 1.1 in the control group. The adsorption rate of aflatoxin B1 reached 83-90% in the III and IV test groups, while T2/HT2 mycotoxin adsorption was 12.5-14%. In the II test group, the adsorption rate for B1 was 76.4%, and for T2/HT2 it was 10%. In the control group, the adsorption rates were 68.1% for B1 and 7.1% for T2/HT2. Overall, the results indicate that Askangel serves as an effective mycotoxin adsorbent, positively influencing the growth, health, and chemical composition of trout meat, as well as enhancing its taste properties.
Published Version
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