ISSUE FOCUS 54 FEED & ADDITIVE MAGAZINE October 2023 available on the market. Trials in laying hens have shown egg production benefits, particularly in the later stages of lay, when birds were fed Selisseo®. A trial conducted in Ankara (Turkey) studied the effect of Selisseo® on laying performance and egg quality of hens aged from 63 to 90 weeks. As birds age, there is a normal increase in their feed efficiency (FCR) and a decrease in the egg production rate. However, this decrease in performance was alleviated in birds fed Selisseo®, resulting in better overall performance. Over the entire period, the FCR was decreased with Selisseo® by 2 and 3 points compared to Seleno-Yeast (SY) and Sodium Selenite (SS), respectively (Figure 1A/B). Feeding Selisseo® resulted in a 9% higher laying rate compared to SS and 4.5% compared to SY (Figure 2A/B). It also showed a reduced number of cracked and broken eggs resulting in 0.65% and 1.1% more saleable eggs per hen than SS and SY, respectively. This beneficial effect can be attributed to an improved antioxidant capacity, which in turn led to better hepatic health and function, a reduction in the MDA level in both the serum and liver, and a lower liver fat content (data upon request). 3. Improving digestive performance of laying hens for persistent quantity and quality Efficient egg production, performance and even egg quality are linked to the gut. Adimix Precision is a precision delivery coated sodium butyrate. Thanks to its specific coating, Adimix Precision can deliver butyrate along the whole digestive tract from the stomach to the distal part of the intestine, and therefore has the potential to trigger beneficial Figure 2A. Egg production of the birds fed different Se sources over the 28-week experiment Figure 2B. An improvement of the laying rate was observed overall for the overall period (p = 0.05) Figure 1A. The FCR of the birds fed different Se sources over the 28-week experiment Figure 1B. An improvement in FCR was observed overall for the whole period (p < 0.05)
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