Table 2 Implied emission factor, kg CH₄ per head per year

Enteric Fermentation	1985	1986	1987	1988	1989	1990	1991	1992	1993	1994	1995	1996	1997	1998	1999	2000	2001	2002	2003	2004	2005	2006	2007	2008	2009	2010	2011	2012	2013	2014	2015	2016	2017	2018	2019	2020
1. Cattle
1a. Dairy	126.84	126.81	126.79	127.52	127.61	127.73	129.69	130.52	132.45	134.00	132.97	133.04	131.95	132.83	131.62	129.85	132.48	134.55	137.56	139.87	141.98	143.20	144.36	144.32	147.74	147.62	146.01	146.68	147.81	153.76	154.35	155.98	159.17	159.00	160.78	157.41
1b. Non-Dairy	32.78	33.09	33.12	33.43	33.41	33.83	34.35	34.70	34.49	34.54	34.93	34.67	35.32	35.07	35.73	35.77	35.60	36.70	36.95	36.85	38.15	40.14	41.45	42.32	41.53	41.18	41.38	41.16	41.77	42.38	41.59	40.85	40.70	40.47	41.10	40.87
3. Sheep	6.71	6.71	6.71	6.71	6.71	6.71	6.71	6.71	6.71	6.71	6.71	6.71	6.71	6.71	6.71	6.71	6.71	6.71	6.71	6.71	6.71	6.71	6.71	6.71	6.71	6.71	6.71	6.71	6.71	6.71	6.71	6.71	6.71	6.71	6.71	6.71
4. Goats	13.15	13.15	13.15	13.15	13.15	13.15	13.15	13.15	13.15	13.15	13.15	13.15	13.15	13.15	13.15	13.15	13.15	13.15	13.15	13.15	12.87	12.92	12.95	13.00	13.03	13.03	13.03	13.05	13.07	13.05	13.06	13.07	13.09	13.07	13.08	13.08
6. Horses	21.81	21.81	21.81	21.81	21.81	21.81	21.81	21.81	21.81	21.81	21.81	21.81	21.81	21.81	21.81	21.81	21.81	21.81	21.81	21.81	21.81	21.81	21.81	21.81	21.81	21.81	21.81	21.81	21.81	21.81	21.81	21.81	21.81	21.81	21.81	24.30
8. Swine	1.05	1.08	1.08	1.09	1.09	1.09	1.10	1.11	1.08	1.11	1.09	1.12	1.10	1.11	1.14	1.11	1.12	1.14	1.12	1.14	1.08	1.10	1.10	1.12	1.12	1.08	1.11	1.10	1.12	1.12	1.10	1.09	1.09	1.08	1.06	1.05
9. Poultry	0.004	0.004	0.003	0.004	0.003	0.004	0.003	0.003	0.003	0.004	0.003	0.004	0.003	0.003	0.003	0.003	0.003	0.003	0.004	0.004	0.004	0.003	0.003	0.004	0.003	0.003	0.003	0.003	0.003	0.003	0.003	0.003	0.003	0.003	0.003	0.003
Fur farming	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA	NA
Deer	11.30	11.30	11.30	11.30	11.30	11.30	11.30	11.30	11.30	11.30	11.30	11.30	11.30	11.30	11.30	11.30	11.30	11.30	11.30	11.30	11.30	11.30	11.30	11.30	11.30	11.30	11.30	11.30	11.30	11.30	11.30	11.30	11.30	11.30	11.30	11.30
Ostrich	NO	NO	NO	NO	NO	NO	NO	NO	0.02	0.02	0.02	0.02	0.02	0.02	0.02	0.02	0.02	0.02	0.02	0.02	0.02	0.02	0.02	0.02	0.02	0.02	0.02	0.02	0.02	0.02	0.02	0.02	0.02	0.02	0.02	0.02
Pheasant	0.0003	0.0003	0.0003	0.0003	0.0003	0.0003	0.0003	0.0003	0.0003	0.0003	0.0003	0.0003	0.0003	0.0003	0.0003	0.0003	0.0003	0.0003	0.0003	0.0003	0.0003	0.0003	0.0003	0.0003	0.0003	0.0003	0.0003	0.0003	0.0003	0.0003	0.0003	0.0003	0.0003	0.0003	0.0003	0.0003

NA = Not applicable
NO = Not occuring
Updated:	01-03-2022