ISSUE FOCUS FEED & ADDITIVE MAGAZINE November 2024 45 in the pre-weaning period (34 days) having 317 ppb B-trichothecenes, 14 ppb ZEN, 45 ppb enniatins and 274 ppb culmorin. Post-weaning, feed contained 181 ppb B-trichothecenes, 9 ppb ZEN, 35 ppb enniatins and 214 ppb culmorin. One group was fed a product capable of biotransformation of B-trichothecenes and ZEN. Comparing average daily gain while still in the preweaning phase, evidence of how even low-level mycotoxin contamination inhibits growth and development is clear (Figure. 1). By the end of the trial, the calves receiving a comprehensive mycotoxin management product, Mycofix®, were markedly heavier than those that did not (Figure. 2). PUTTING CALF REARING INTO PERSPECTIVE In summary, calves are some of the most vulnerable animals on the farm, being more susceptible to mycotoxins than adult animals owing to limited immune resilience and rumen development. Proper mycotoxin risk management begins with surveillance and adopting a preventative protection approach with the use of an EU registered product capable of interceding with a wide range of mycotoxin classes. About Tyler Turner Tyler Turner, Ph.D., is the dsm-firmenich Ruminant Technical Specialist for Northern Europe. His role is to promote lifetime performance and sustainable production via the diverse portfolio of Essential Products and Performance Solutions combined with our Precision Services platform offered by dsm-firmenich. Turner works closely with nutritionists, veterinarians and producers to support field trials and act as an information resource to increase awareness and solutions that help producers be more efficient. About Ignacio Artavia Ignacio Artavia holds a bachelor's in Agriculture Sciences and a master's in Sustainable Animal Nutrition and Feeding. He is the Global Marketing Manager for Ruminants at dsm-firmenich, and has supported farmers, nutritionists, and health experts on promoting productive performance through health protection and efficient use of resources. 760 740 720 700 680 660 640 620 +81 g/d Control Avg. daily gain, g/d Mycofix® +5.2 kg Live weight, kg Control Mycofix® 200 198 196 194 192 190 188 186 Figure 2. Average daily gain of calves in the pre-weaning phase when exposed to low level mycotoxin contamination with or without mycotoxin deactivation control. Figure 3. Live body weight of calves at end of 100-day exposure to low level mycotoxin contamination with or without mycotoxin deactivation control.
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