• • • Leonardite humic acids as a component of feed additives against mycotoxins
Harmfulness of grain contaminated by mycotoxins is well known. Feeding livestock with contaminated fodder results in poisoning, reduction in productivity, reproductive ability and livability. Our experiments showed Reasil Humic Helth additive, produced by OOO “Layf Fors” and based on unmodified microporous leonardite humic acids to be effective against mycotoxin accumulation; content of humic acids making up 80.0% of dry matter. Analyses of three Laboratories of Mycotoxicology proved high sorption capacity of the additive for toxin T-2, ochratoxin A, aflatoxin B1, zearalenone and fumonisin B1. Under the maximum allowable concentration of mycotoxins in feed-stuff and excessive sorbing agent probe sorption capacity for toxin T-2 by the feed additive amounted to 84.0%, for afl atoxin B1 — 100.0%, zearalenone — 100.0%, ochratoxin — 97.7%, fumonisin — 100.0%. Desorption for several toxin types, produced by microscopic fungi was quite low (from 0 to 8%). Feed additive was able to sorb from 19.0 to 72.4% of experimentally incubated mycotoxins when initial toxin concentration exceeded the maximum allowable concentration by 5 times. The preparation concentration was 2.0 g/kg of fodder according to the minimum preventive feeding rate. Positive result was zero sorption capacity of Reasil Humic Helth additive for vitamins В12 and В9.
Source: https://kormoproizvodstvo.ru/en/5-2018-2/, p. 33
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