ARTICLE FEED & ADDITIVE MAGAZINE November 2025 93 These challenges significantly affect animal welfare and productivity, leading to major economic losses. Stress alters pig behavior, increasing the frequency of aggressive interactions, which can cause injuries, infections, and higher medication use, while reducing growth and carcass quality. The associated losses are estimated at more than €1.60 per pig, and when mortality increases by 1–2%, losses may rise to €90–120 per pig. Overall, economic losses due to stress—including its effects on growth, feed efficiency, health, behavior, and carcass quality—are estimated to exceed €6 per pig on average. To mitigate aggressive behavior and improve profitability, Techna developed Robus Zen, a natural solution based on plant extracts and aromatic compounds. Robus Zen composition exerts calming effects by modulating neurotransmitters. It also supports digestive, antioxidant, and immune functions, thereby reducing the negative impact of aggressive behavior on performance. Field trials demonstrated that pigs receiving Robus Zen at 1 kg/t showed Frequency of Positive & Aggressive Behaviours 7,4 4,9 22,2 12,2 45,2 60,2 25,2 22,8 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% Control Robus Zen Biting Bullying Contact with pen mates Contact with toys Figure 2. Less physical activity and agressive behaviour MEA 2025 ABU DHABI, U.A.E. 25-27 NOVEMBER Combining science and nature to care for life.
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