Enteric methane emission factors of smallholder dairy farming systems across intensification gradients in the central highlands of Ethiopia

Table 10 A Comparison of our findings to IPCC default values and Wassie et al. [5]

Cattle category	IPCC [16] Tier I			Wassie et al. [5]			Urban farming systems (Present Findings)
Cattle category	LW (kg)	MY (L)	EF	LW (kg)	MY (L)	EF	LW (kg)	MY (kg)	EF
Farming system
Adult cows	400	5.9	104	429	6.4	78	429.19	10.4	72.71
Adult male	450	–	87	419		47	435.27		30.15
Growing female	212	–	86	261		39	271.37.51		34.21
Growing male	237	–	83	261		41	288.13		36.31
Rural farming systems
Adult cows	247	2.4	88	286	1.25	58	294	1.77	33.61
Adult male	382		104	343		57	351		35.95
Growing female	135		76	181		41	198		30.21
Growing male	202		87	227		54	234		33.01
Fattened male	225		64	281		52	375		36.82

Adult cows ≥ 3 years; Adult male ≥ 3 years; Growing female = 1–3 years; Growing male = 1–3 years; Calve ≤ 1

ISSN: 1750-0680