EU Evaluates the Safety and Efficacy of Lactococcus lactis DSM 34262 as a Silage Additive for All Animal Species

On July 25, 2024, the European Food Safety Authority (EFSA) officially published its authoritative study, which was carefully prepared by the EU Animal Feed Additives and Products (FEEDAP) Research Group. Focus on the safety and efficacy evaluation of Lactococcus lactis DSM 34262, an innovative feed additive, in silage. This move not only responds to the high concern of the European Commission, but also triggered a wide range of discussions and expectations in the global animal husbandry field.

In-depth evaluation: Dual validation of safety and efficacy

After a thorough and rigorous scientific assessment, the research team came to an exciting conclusion. They note that under the proposed stringent conditions of use, Lacticoccus lactis DSM 34262 as an additive to silage has demonstrated an extremely high safety profile for all animal species, whether livestock, poultry or other economic animals. This conclusion is based on the comprehensive investigation of the biological characteristics, genetic stability and potential environmental impacts of this strain.

In particular, it is worth mentioning the excellent performance of the additive in promoting the fermentation of fresh plant materials. The experimental data showed that when the concentration reached at least 1×108 colony forming units (CFU) per kg of fresh feed, Lactococcus lactis DSM 34262 could significantly improve the fermentation efficiency of silage and stabilize its dry matter content within the ideal range of 30-35%. This discovery is of great significance for improving the nutritional value of silage, extending its shelf life and reducing feed waste.

Solid building blocks for safety: strain characteristics and genetic background

In particular, the Panel stressed that Lactococcus lactis, as a class of probiotics widely found in nature, has biological properties that can be assumed to be safe. The specific strain of DSM 34262 has been strictly screened and identified, and its unique physiological function and genetic stability have been fully confirmed. In particular, the strain was not found to carry any worrying resistance genes during the study, which provides a solid security guarantee for its wide application in the field of feed additives.

Potential risks and protective measures

Although the Lactococcus lactis DSM 34262 performed well in terms of safety, the team also cautioned users to be aware of the potential risk of allergic reactions. Especially when handling silage containing this additive, skin or respiratory discomfort may result from direct contact or inhalation of dust. Therefore, they recommend that users take necessary protective measures, such as wearing protective masks, gloves and other personal protective equipment, to reduce unnecessary health risks.

Good news: A new chapter for the livestock industry

This scientific opinion of the EU expert group not only provides strong support for the safety and effectiveness of Lactococcus lactis DSM 34262 as a silage additive, but also infuses new vitality into the development of animal husbandry. With the wide application of this innovative product, we have reason to believe that the production efficiency of the livestock industry will be significantly improved, and animal welfare will be better guaranteed. This is certainly good news for all livestock practitioners to celebrate.