Pastoralism

Research, Policy and Practice

Table 2 Botanical composition of the goats’ diet and the proportion of relative frequency of each forage item. Metabolizable energy, protein content and digestibility in 2010, 2011 and 2012 winter

From: Are winter rangelands enough to satisfy the nutritional requirements of late-gestation transhumant goats in Patagonia?

Species in diet	2010				2011				2012
Species in diet	Relative frequency of each forage item, %	ME, Mcal/kg DM	CP, %	Digestibility, %	Relative frequency of each forage item, %	ME, Mcal/kg DM	CP, %	Digestibility, %	Relative frequency of each forage item, %	ME, Mcal/kg DM	CP, %	Digestibility, %
*Grasses*
Alopecurus sp.	0	0	0	0	4.39	0.08	0.40	2.37	0	0	0	0
Bromus sp.	1.42	0.03	0.22	0.93	2.70	0.06	0.41	1.77	0	0	0	0
Distichlis sp.	0	0	0	0	1.01	0.02	0.03	0.45	0	0	0	0
Panicum sp.	1.07	0.02	0.10	0.58	0	0	0	0	0	0	0	0
Poa sp.	6.41	0.15	0.51	4.15	20.61	0.48	1.65	13.33	5.92	0.14	0.47	3.83
Rytidosperma sp.	3.91	0.09	0.59	2.56	0.68	0.02	0.10	0.44	0.70	0.02	0.11	0.46
Sporobolus sp.	0	0	0	0	0	0	0	0	2.44	0.03	0.14	0.83
Pappostipa sp.	20.64	0.36	1.67	10.15	31.42	0.54	2.55	15.46	32.75	0.57	2.65	16.11
Trisetum sp.	0	0	0	0	3.04	0.06	0.28	1.64	0	0	0	0
*Total grasses*	*33.45*	*0.65*	*3.09*	*18.36*	*63.85*	*1.26*	*5.41*	*35.46*	*41.81*	*0.75*	*3.37*	*21.23*
*Shrubs*
Acantholippia sp.	3.20	0.05	0.21	1.40	0	0	0	0	0.70	0.01	0.05	0.31
Adesmia campestris	0	0	0	0	1.69	0.04	0.14	1.10	0	0	0	0
Anarthrophyllum sp.	0	0	0	0	0.34	0.01	0.04	0.15	0	0	0	0
Atriplex sp.	16.73	0.36	2.93	10.04	0	0	0	0	0	0	0	0
Chuquiraga sp.	20.64	0.30	1.32	8.28	2.70	0.04	0.17	1.08	22.30	0.32	1.43	8.94
Cyclolepis sp.	1.42	0.02	0.07	0.69	0	0	0	0	0	0	0	0
Discaria nana	1.78	0.03	0.16	0.86	0	0	0	0	0	0	0	0
Ephedra sp.	3.56	0.05	0.17	1.51	13.18	0.20	0.65	5.59	3.48	0.05	0.17	1.48
Hyalis argentea	2.49	0.05	0.17	1.53	1.69	0.04	0.11	1.04	5.23	0.12	0.36	3.22
Junellia sp. A	0	0	0	0	1.69	0.03	0.19	0.89	0	0	0	0
Larrea sp.	6.76	0.14	1.16	4.04	1.01	0.02	0.17	0.60	9.76	0.21	1.67	5.83
Maihuenia sp.	0	0	0	0	0	0	0	0	4.53	0.05	0.07	1.36
Azorella prolífera	0.36	0.01	0.01	0.15	0	0	0	0	0	0	0.	0
Nardophyllum sp. B	0	0	0	0	0	0	0	0	1.05	0.02	0.05	0.51
Nassauvia sp.	1.42	0.02	0.07	0.42	0	0	0	0	0.35	0	0.02	0.10
Prosopidastrum sp.	0	0	0	0	0	0	0	0	2.79	0.04	0.33	1.20
Prosopis denudans	0	0	0	0	1.35	0.02	0.15	0.53	0	0	0	0
Schinus sp.	7.83	0.13	0.65	3.59	11.15	0.18	0.93	5.11	7.32	0.12	0.61	3.35
Senecio sp	0	0	0	0	0.34	0.01	0.08	0.24	0	0	0	0
*Total shrubs*	*66.19*	*1.16*	*6.91*	*32.49*	*35.14*	*0.58*	*2.62*	*16.33*	*57.51*	*0.94*	*4.74*	*26.30*
*Forbs*
Acaena sp.	0	0	0	0	0	0	0	0	0.35	0.01	0.02	0.19
Cerastium sp.	0	0	0	0	0.34	0.01	0.04	0.20	0	0	0	0
Erodium cicutarium	0	0	0	0	0.68	0.02	0.11	0.44	0	0	0	0
Perezia sp.	0.36	0.01	0.02	0.20	0	0	0	0	0	0	0	0
Rumex sp.	0	0	0	0	0	0	0	0	0.35	0.01	0.07	0.20
*Total forbs*	*0.36*	*0.01*	*0.02*	*0.20*	*1.02*	*0.02*	*0.15*	*0.63*	*0.70*	*0.01*	*0.09*	*0.39*
*Total*	100.00	1.82	10.03	51.06	100.01	1.87	8.18	52.42	100.02	1.70	8.20	47.92

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