Table 61. Estimated manure production within the major broiler and layer chicken growing provinces in the Philippines

Province	Chicken Inventory (000’ pieces)	Manure Produced per Year1 (mt)	Percent of Total Production
Batangas	8,455.91	231,480.43	19.61
Bulacan	4,368.61	119,590.59	10.13
Pampanga	4,343.50	118,903.29	10.07
Nueva Ecija	3,857.48	105,598.43	8.95
Cavite	3,100.42	84,874.05	7.19
Cebu	2,764.26	75,671.62	6.41
Rizal	2,677.15	73,287.09	6.21
Quezon	1,139.41	31,191.46	2.64
Iloilo	995.02	27,238.78	2.31
NCR	943.82	25,837.02	2.19
Pangasinan	814.76	22,304.06	1.89
Negros Occidental	804.35	22,019.08	1.87
Tarlac	744.94	20,392.84	1.73
Leyte	417.22	11,421.37	0.97
Camarines Sur	332.47	9,101.31	0.77
Major Provinces	35,759.32	978,911.41	82.94
Other Provinces	7,354.10	201,318.49	17.06
Total	43,113.42	1,180,229.90	100.00

Source of basic data: Bureau of Agricultural Statistics (unpublished data)

¹ manure production computed at 75 g/bird/day (averaged from various sources)