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Phosphorus in Fresh and Dry Dung of Grazing Dairy Cattle, Deer, and Sheep

Sequential Fraction and Phosphorus-31 Nuclear Magnetic Resonance Analyses

R. W. McDowella,* and I. Stewartb

a AgResearch, Invermay Agricultural Centre, Private Bag 50034, Mosgiel, Otago, New Zealand
b Department of Chemistry, University of Otago, P.O. Box 56, Dunedin, New Zealand



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  		Fig. 1. Solution 31P nuclear magnetic resonance spectra of fresh and dry cattle dung. For fresh dung, an expansion shows peaks in the diester and pyrophosphate region. Main spectra are scaled so the orthophosphate peak is 70% of the figures' full height.

 


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  		Fig. 2. Solution 31P nuclear magnetic resonance spectra of fresh and dry deer dung. An expansion shows peaks in the diester and pyrophosphate region of each spectrum. Main spectra are scaled so the orthophosphate peak is 70% of the figures' full height.

 


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  		Fig. 3. Solution 31P nuclear magnetic resonance spectra of fresh and dry sheep dung. Expansions show peaks in the diester and pyrophosphate region of fresh dung, and the orthophosphate and monoester region of dry dung. Main spectra are scaled so the orthophosphate peak is 70% of the figures' full height.

 




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