Phytate and phytase in poultry nutrition

سال انتشار: 1392
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 446

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شناسه ملی سند علمی:

JR_IJABBR-1-11_021

تاریخ نمایه سازی: 26 اسفند 1394

چکیده مقاله:

There is a distinct possibility that phytate negatively influences protein and energy utilisation in poultry and, as these influences would be ameliorated by phytase, there are substantial, practical implications. Despite several thousand scientific papers and a rapidly growing market the use of phytase and theimportance of phytate in practical poultry nutrition remains an area of some confusion. Initially phytases were offered as a means to improve the digestible phosphorus concentration of monogastric rations by the stepwise removal of orthophosphate from the myo-inositol ring of phytate. However, it was graduallyunderstood that the digestibility of other minerals (notably calcium), carbohydrates and amino acids were also variably influenced by the ingestion of phytase (and phytate). The mechanisms at work are not entirely clear but recent evidence suggests that phytate is an antinutrient, beyond its effect on digestible phosphorus and influences secretory and absorptive processes in the gut.

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نویسندگان

Nematollah Dayyani

Lecturer of Payam Noor university, Faculty of Agriculture, Qom, Iran.

Morteza Beyki Bandar Abadi

Academic Member of Agriculture & Natural Resources Research Center, Qom, Iran.

Ahmad Amir Abadi Farhani

Lecturer of Payam Noor University, Faculty of Agriculture,Qom, Iran.