To prove it, Adisseo has already invested more than 1 million euros in more than 20 trials across species since 2008 to figure out the synergistic value of Rovabio® Max, a combination of Rovabio® Excel, Adisseo's carbohydrase and phytase.
Knowing Rovabio® Excel and phytase effects separately is not sufficient; as they may have contrary effects, for example on feed intake. Both enzymes have to be combined in specific experimental design to get more insight on the combination effect.
In all trials carried out so far, challenging both energy and phosphorus in the same experimental design, Rovabio® Max has been proven to provide at least 1.5 g available phosphorus per kg of feed at the single dosage of 500 FTU/kg in addition to energy (from 85 to 105 kcal/kg in broilers depending on diet type). With the combined enzymatic solution we actually gain flexibility in energy reformulation. Indeed, even on a corn-soybean diet, energy reformulation can be increased up to 125kcal/kg (broilers). This can be explained by the major impact of phytate on energy release.
Rovabio® Max is the most effective phytase product because combined with Rovabio® Excel, the versatile carbohydrase, removing the "cage" effect and decreasing viscosity and thus allowing better access to feed phytate. In total, it is 20 enzyme activities in one.
All trials prove that Rovabio® Max can safely replace 1.5g av.P/kg and at least 85kcal/kg (broilers) of metabolizable energy, leading to substantial feed cost savings. Below this safe recommended matrix value, Rovabio® max would generate a loss of potential cost savings and also phosphorus release in the environment.
To guarantee phytase action, enough substrate should be present, especially if Rovabio® Max is valued up to 2 g av. P /kg at the same dosage (500 FTU/kg), as shown in some trials. We consider that 1.5g avP can be released from 2.5g phytic phosphorus, about 60%.
One single dosage is effective and profitable since we know from literature that performance response to phosphorus level reaches a plateau and that phytase action is limited by phytate availability. Rovabio® Max allows the best utilization of feed phytate for reaching optimal AvP level for maximum performances.
Mentioned in this news release: