AI Article Synopsis
- Phytate-bound phosphorus in poultry diets is poorly utilized by chickens, so researchers studied the effects of supplementing their diet with either freeze-dried Mitsuokella jalaludinii culture (FD-AMJC) or Natuphos® phytase.
- Both supplements improved key growth metrics like body weight gain, feed intake, and nutrient retention, but FD-AMJC was more effective than phytase N in enhancing these factors and reducing phosphorus excretion.
- The study concluded that FD-AMJC supplementation is superior for improving nutrient utilization and decreasing environmental waste in broiler chickens compared to traditional phytase supplementation.
Article Abstract
Background: Phytate-bound phosphorus (P) in poultry diets is poorly available to chickens. Hence exogenous phytase is often added to their diets. Mitsuokella jalaludinii is a rumen bacterial species that produces high phytase activity. In this study the effects of freeze-dried active M. jalaludinii culture (FD-AMJC) and Natuphos(®) phytase (phytase N) supplementations on the growth performance and nutrient utilisation of broiler chickens fed a low-available P (aP) diet were evaluated.
Results: Supplementation of FD-AMJC or phytase N to the low-aP diet improved the feed intake, feed conversion rate, body weight gain, dry matter (DM) digestibility and P, Ca and Mn retention, increased the tibia bone ash content, Ca and P concentrations in tibia DM and P and Zn concentrations in plasma and reduced the P excretion of broiler chickens. However, the feed conversion rate, P and Ca retention, DM digestibility and reduction of P excretion were better with FD-AMJC than phytase N supplementation. Supplementation of FD-AMJC to the low-aP diet also improved the apparent metabolisable energy value of the diet, Cu and Zn retention and crude protein digestibility, but phytase N supplementation did not.
Conclusion: FD-AMJC supplementation was more efficient in improving nutrient utilisation and reducing P excretion in chickens than phytase N supplementation.
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| http://dx.doi.org/10.1002/jsfa.4570 | DOI Listing |
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