Three forms of L-lysine are effective for non-ruminants
Liquid L-lysine Concentrate, L-lysine HCl and Concentrated Liquid L-lysine HCl are an effective source of the essential amino acid L-lysine for non-ruminant animal species, as found by the European Food Safety Authority (EFSA).
“For supplemental L-lysine to be as effective in ruminants as it is in non-ruminant species, it requires protection against decomposition in the rumen,”He said the FEEDAP panel of the Financial Supervisory Authority.
The European Union Commission asked experts to provide a scientific opinion on the efficacy and safety of additives consisting of three forms of lysine, liquid L-lysine concentrate (minimum 50% L-lysine), solid L-lysine monohydrochloride (minimum 78% L-lysine). lysine), and L-lysine monohydrochloride (at least 22.4% L-lysine), produced by Escherichia coli NITE BP-02917, for all animal species.
The three forms of the additive are produced by the French company Metex NoovistaGo.
It is intended for use in the feeding of all kinds of animals as food and as a sensory additive in terms of flavour. The European Food Safety Authority determined that all three were effective as feed flavoring compounds under the proposed conditions of use.
FEEDAP Panel have foundThe production strain did not carry antimicrobial resistance genes and no viable cells from the production strain were detected in the final products. They said that because there were no worrisome sequences in the production strain, the potential presence of this DNA did not raise safety concerns.
Experts have concluded that using the three forms of L lysine in feed is safe for the target species. The EFSA team said that this finding will also cover sensory applications. Products used in animal feed are safe for consumers and the environment.
The FEEDAP Committee noted the risks of nutritional imbalances and health concerns for amino acids when administered simultaneously in feed and in water for drinking.
As stated by the Financial Supervisory Authority on its website the findingsEvaluation of the safety and efficacy of L‐lysine monohydrochloride and L‐lysine sulfate produced by Corynebacterium glutamicum CGMCC 17927, when used as food additives in feed and drinking water for all types of animals. The applicant in question is Barentz Animal Nutrition.
Highlight essential oils
Additional, the Financial Regulatory Authority issued its opinion regarding its evaluation of the safety and efficacy of essential oils from the bark and leaves cinnamon c. Presl when used as a sensory additive in feed and potable water for all types of animals.
Cinnamon bark and leaf oil from C. verumPrisl can be produced from plants of different geographic origins and by different processes that result in preparations with different composition and toxin profiles, according to the Parma-based EU Food and Feed Risk Assessor.
Therefore, the FEEDAP Committee stressed that ConclusionsApplied only to cinnamon bark oil containing 0.34% safrool, 0.04% methylogenol and ≤ 0.024% styrene and cinnamon leaf oil containing 1.09% safrool, ≤ 0.30% methylogenol and ≤ 0.013% styrene, which are obtained by steam distilling the bark and leaves C. verumStraight.
Due to the presence of styrene in the essential oils under evaluation, FSA specialists said they were unable to determine the safety of both products for animals with a long production cycle or for reproductive animals.
The agency released results, however, for animals with a short production cycle:
The committee concluded that the use of cinnamon bark oil is safe up to the maximum suggested application levels in whole feed of 5 mg/kg for broilers, 25 mg/kg for fattening pigs, 50 mg/kg for pigs, and 10 mg/kg for pigs. kg for cows, 5 mg/kg for rabbits, salmon and other fin fish. The use of the additive in water for drinking is considered safe for those animals provided that the total daily intake of the additive does not exceed the daily amount considered safe when consumed through feed.
Scientists have found that the use of cinnamon leaf oil is safe up to the maximum suggested application levels in complete feed of 40 mg/kg for broilers and other poultry, 50 mg/kg for fattening turkeys, for fattening pigs and cows, 25 mg/kg whole feed for salmon and other fin fish and species other secondary. The suggested use level in drinking water of 3 mg/L is considered safe for those animals, with the exception of fish.
The team did not identify any consumer concerns regarding their prescribed use in the feed.
However, they cautioned that the essential oils under evaluation should be considered irritants to the skin and eyes, and as dermatological and respiratory stimulants. Based on the presence of 0.1% safrole, cinnamon leaf oil and bark oil are classified as carcinogenic and should be treated accordingly, the review reads.
The use of cinnamon bark and leaf oil in animal feed under the proposed conditions is not expected to pose a risk to the environment, according to the agency.
Since these essential oils are already recognized as food flavors, they said their function in feeds would be similar, and thus the specialists said no further demonstration of efficacy was needed.
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