Valor nutritivo de pastos de montaña ("nardus stricta" y "bromus erectus") utilizados por el ganado ovino
- Manso, T. 1
- Castro, T. 1
- Gonzalez, J. S. 2
- Mantecon, A. R. 3
- 1 Departamento de Producción Animal. Facultad de Veterinaria. 28040. Madrid (España)
- 2 Departamento de Producción Animal I. Universidad de León. 24007. León (España)
- 3 Estación Agrícola experimental del CSIC. Apdo. 788. 24080 León (España)
ISSN: 0210-1270
Année de publication: 1995
Volumen: 25
Número: 2
Pages: 311-318
Type: Article
D'autres publications dans: Pastos: Revista de la Sociedad Española para el Estudio de los Pastos
Résumé
Nutritive valué (chemical composition and in vitro digestibility) of pasture and extrusa samples, and dry matter intake of two pasture communities (Nardus stricta and Bromus erectus) were studied in a mountainous área. Pasture samples were obtained by cutting all the herbage within quadrants (0.5 x 0.5 m) with shears, and extrusa samples using eight oesophageal fistulated merino wheters. Estimate of dry matter intake was made from the in vitro digestibility of extrusa and from faecal outputs. To determinate total faeces outputs, 12 merino sheep were used fitted with harnesses. Crude protein content and in vitro dry matter digestibility of pasture was higher (P<0.05) in the Nardus stricta community than in the Bromus erectus one. Organic matter, crude protein content (P<0.001) and in vitro dry matter digestibility (P<0.01) of extrusas was higher in the Nardus sricta community than in the Bromus erectus one. Dry matter intake was similar in both communities (P>0.05). Mean valué were 992 g/ewe/day.