How to calculate actual doses and how much time of super dosing will not give any adverse effect on both layer and broiler?
Phytase, an enzyme works well if considered the use correctly. But the results depend on how you are calculating the matrix values. It varies on a lot of factors. So, be sure about the factors first, then go for use- normal or super.
Dear all, according to commercial trials in poultry, using SBM as a traditional protein source, optimal phytase activity for laying hens must be approx. 500 FTU/kg of feed. Dosage of phytase activity can be higher if the feed contains more appropriate substrate (phytates). If you replace SBM by SFM, phytate content becomes to be higher. The same story if you use more wheat bran or rice bran. But be careful, please avoid the use of phytase "over the top" without decrease of MCP! Follow recommendations of matrix values of phytase producer. The excess of phosphorus in diet is a very bad thing, it can decrease eggshell quality. Also is important: effect of phytase on phosphorus release is not linear.
Dear Mr.Singh, to advice precisely phytase dosage I need to know a) feed composition, b) phytase producer, c) matrix values d) mineral source (MCP, DCP or TCP).
Dear Jodh Singh, one substrate (phytate) and if the same enzyme activity, and if the same thermostability = the same result. For instance, some phytases producent can be also yeast, too. No difference. If you want to select better enzyme, pls perform tests in your lab, and everything will be clear.
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