Dear Mr. Bui Xuan An,

Thank you for your valuable comments and suggestions about C:N ratio. Yes, C:N ration in the human faeces can depend upon the diet consumed by the people of different socio-economic and ethnic group. C:N ratio of the diet of people in Pathari area was not determined. Like you, I also think appropriate R & D be based on the diet consumed by different categories of people.

Best regards

Amrit & Upendra