Feed & Additive Magazine Issue 22 November 2022

NEWS 94 FEED & ADDITIVE MAGAZINE November 2022 Precision feeding: LEVUCELL SC fiber-effect to support sustainable cost-effective formulation Recently, the Lallemand Animal Nutrition ruminant R&D team added new data to quantify the effects of its ruminant live yeast Saccharomyces cerevisiae CNCM I-1077 (LEVUCELL SC) on NDF degradation in a large range of forage samples in vivo. This unique dataset allows the company’s partners to get closer to precision feeding thanks to the development of nutritional sub-models. Such models allow nutritionists to fully integrate the ‘fiber effect’ of the rumen-specific live yeast within formulation software. Now, ruminant experts can formulate rations according to the expected effect of rumen-specific live yeast on nutrient extraction for dairy cows — similar to the way a monogastric nutritionist is able to take into consideration the effect of enzymes in the diet. It is a valuable tool for nutritionists to precisely adjust rations to maximize income over feed costs (IOFC). This tool offers the flexibility to change raw materials, switch to a new source of non-edible human food, or use low-quality forages to formulate in a more sustainable way either at iso costs or to maintain production. “Tell us what your diet composition and ingredient quality is, the program will tell you what is the response when using Saccharomyces cerevisiae CNCM I-1077 yeast,” explains Aurélien Piron, Technical Manager – Ruminant, at Lallemand Animal Nutrition, who led the project. The Center for Aquaculture Technologies (CAT), leaders in delivering custom genetics research solutions to the industry, and Icy Waters LTD (IWL), a premium producer of award-winning Arctic Charr, announced the partnership on a unique breeding program. Arctic Charr is gaining momentum as a sustainable and nutritious food alternative to other commercially successful farmed salmonid species such as salmon and trout. Icy Waters Ltd. carries out a breeding approach managing two founder populations of broodstock. With the implementation of a modern selective breeding program and development of custom genomic tools tailored to Arctic Charr, CAT will lead the company in selecting for the best traits from both stocks, gaining IWL a competitive edge and delivering an unmatched quality product to market. Icy Waters and CAT partner to accelerate genetic improvement in Arctic Charr

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