TABLE 82.DUCK STOCKPILED LITTER CHARACTERISTICS *
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Parameter	Unitsa	Total		Parameter Concentration				Parameter Mass
		No of	-------------------------------------------------------------------------------					--------------lb/day/-------------
		Observ	minimum	maximum	median	mean	std dev	bird	1000 lb
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Litterb	lb/3 lb/day	estc	-	-	-	0.090	-	0.090	30
Density	lb/ft3	est	-	-	-	50	-	-	-
TS	%wb		34	72	49	49	10	0.044	15
TKN	lb/ton		13	39	21	22	7.4	0.0010	0.34
NH3N	%tkn	est	-	-	-	19	-	0.00019	0.064
P2O5	lb/ton		23	66	38	41	11	0.0019	0.62
K2O	lb/ton		11	38	21	22	7.8	0.00098	0.33
Ca	lb/ton		18	64	30	34	14	0.0015	0.51
Mg	lb/ton		2.9	8.4	4.7	5.2	1.5	0.00023	0.078
S	lb/ton		1.7	8.5	4.4	4.5	1.6	0.00020	0.067
Na	lb/ton		2.4	8.8	5.4	5.4	2.0	0.00024	0.080
Fe	lb/ton		0.50	3.1	1.3	1.5	0.74	0.000069	0.023
Mn	lb/ton		0.37	0.82	0.54	0.56	0.13	0.000025	0.0084
B	lb/ton		0.018	0.052	0.029	0.031	0.0089	0.0000014	0.00046
Mo	lb/ton		0.000082	0.00051	0.00033	0.00030	0.00016	0.000000014	0.0000045
Zn	lb/ton		0.28	0.78	0.49	0.50	0.13	0.000023	0.0076
Cu	lb/ton		0.028	0.086	0.051	0.054	0.015	0.0000024	0.00081
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* References:Biological & Agricultural Engineering Dept, North Carolina State University, Jan 1994.
	Agronomic Division, North Carolina Department of Agriculture & Consumer Services.
a All concentrations as is or wet basis (wb) except as noted dry matter basis (db); all mass values wb.
b Annual house manure and litter accumulation removed to uncovered stockpile to be spread within 6 months;
typical litter base is sawdust, wood shavings, or peanut hulls.
c Mean value extrapolated from other data; measured values not available.