ARTICLE FEED & ADDITIVE MAGAZINE October 2024 75 ROBUS ZEN, an in-feed botanical based additive, with carefully chosen ingredients known for their mode of action in inhibiting various stress activated pathways in the central nervous system and promoting the production of serotonin. In addition, ROBUS ZEN contains digestive enhancers to support performance. Results under real conditions: Going head-tohead with a competing additive, ROBUS ZEN was recently trialled against an alternative feed additive marketed for decreasing aggression (Product B) in an indoor slatted all-in-all-out finishing unit (40kg to 120kg) in Northern England. The pigs were from an extremely aggressive source known for tail biting. ROBUS ZEN helps improve performance + 3.6 kg of live weight + 33 g ADG 132 131 130 129 128 127 126 125 1,02 1,01 1 0,99 0,98 0,97 0,96 (kg) (kg/d) 127,3 130,9 0,979 1,012 Control ROBUS ZEN Control ROBUS ZEN Increase in live weight between 2.5 and 4.1 kg (trials 2023/2024) Increase in ADG between 21 and 121 g (trials 2023/2024) Source: Techna field trials, 2023
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