J. Appl. Poult. Res.
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J APPL POULT RES 2001. 10:21-23
© 2001 Poultry Science Association
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Research Reports

Comparison of Different Drying Techniques for Nitrogen Analysis of Poultry Excreta, Feces, and Tissue

A. M. L. Ribeiro and A. M. Penz, Jr.

Universidade Federal do Rio Grande do Sul, Departamento de Zootecnia Porto Alegre, RS, 91540, Brazil; Phone/Fax: (051) 316 6048

T. K. Belay and R. G. Teeter

Department of Animal Science, Oklahoma State University, OK 74078; Phone: (405) 744-6621

Correspondence: A. M. L. Ribeiro

The effects of drying (55 or 100 °C) on N content of feces, excreta, and tissue when compared with wet materials were studied. Drying of excreta but not feces or tissue, at 100 °C, resulted in significant N losses (p < 0.01). Addition of HCl prior to drying at 55 °C reduced N losses.

Key Words: Nitrogen analysis • drying • excreta • tissue • feces






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