ISSUE FOCUS 38 FEED & ADDITIVE MAGAZINE October 2023 after the Gumboro vaccination was given. Below, we provide a glimpse into several studies evaluating Fibosel’s effects on different species. FIBOSEL IN BROILER CHICKENS Selko has performed four scientific studies with Fibosel included in the diets of broiler chickens. Given that scientific facilities are usually much cleaner than commercial facilities, the birds’ health was challenged by limiting cleaning in the barn. All four studies showed an improved feed conversion ratio and reduced mortality in the chickens that received Fibosel. FIBOSEL IN SWINE Two scientific trials were performed to assess the effect of Fibosel in swine. The study in weaned piglets showed a decreased severity and duration of diarrhea and an improved the daily gain and feed conversion ratio among animals receiving Fibosel. In the second study, Fibosel was provided to lactating sows and results showed higher immunoglobulin levels in the sows’ milk. In addition, sows’ piglets showed a higher survival rate and higher litter weight gain. FIBOSEL IN CALVES A series of scientific trials was done in dairy calves. Fibosel included in the milk replacers fed to calves was shown to improve both average daily gain and the feed conversion ratio. The calves were fed with Fibosel containing milk replacers for 12 weeks. FIBOSEL IN AQUATIC SPECIES Fibosel is a very interesting feed additive for aquatic species. As fish and shrimp have only the non-specific immune system to protect them from foreign invaders, activation of this system during challenging periods in their lives supports their immune responses to pathogens. Fibosel was studied in shrimp post-larvae 25 days and in Atlantic salmon (start bodyweight of 22.7 g). in both studies the animals were infected with Vibrio. Fibosel was shown to improve survival rates in both cases. Delivering naturally exposed long ß 1,3/1,6-glucans can make animals more resilient by boosting their natural defense systems, helping protect against harmful pathogens and increasing the efficacy of a vaccination program. As part of an integrated feed, farm and health management program, this feed additive can support immune competence at a time when regulations are increasingly restricting antibiotics for non-therapeutic use. About Sanne van Beers Sanne van Beers holds a Master’s degree in Animal Sciences from Wageningen University in The Netherlands. After which she joined Trouw Nutrition as swine gut health researcher. After 5 years in the research and development department of Trouw Nutrition she moved into a commercial role as product manager in Selko being responsible for technical support of Fibosel® and TNIBetain.
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