Table 60. Nutrient composition of selected manures

Manure Source	DM (%)	N (%)	P (%)	K (%)	OM (%)	N:P Ratio	C:N Ratio
Chicken	60-71	3.8	1.9	1.8	41.0	2.0	9.0
Duck	80.0	2.2	1.1	1.2	39.0	1.9	10.0
Pig	73.0	2.8	1.4	1.2	29.0	2.1	13.0
Cattle	76.0	1.9	0.6	1.4	34.0	3.4	19.0
Carabao	-	0.3	0.1	-	-	2.3	-
Goat	-	0.6	0.1	0.2	-	4.4	18.5
Horse	-	2.3	0.8	1.3	-	2.8	24.0
Rabbit	-	1.7	1.3	1.1	-	1.3	-
Guano	-	0.6	0.4-6.6	-	-	-	-
Human	-	7.2	1.7	2.4	-	4.2	8.0

Source: adapted from Tacon (1987)