Composición química y digestibilidad in vitro de trigo y cebada para la alimentación animal cultivados de forma convencional y ecológica
- M.L. Tejido 1
- M.J. Ranilla 1
- C. Palacios 1
- C. Saro 1
- A. Díaz 1
- I. Mateos 1
- M.D. Carro 1
- 1 Departamento de Producción Animal, Universidad de León
- Luis Rodríguez Ruiz (coord.)
- Juan Antonio Olmedo Olmedo (coord.)
- Sara Olmedo de la Cruz (coord.)
- Luis Fernando de la Fuente Crespo (coord.)
- Ana Belén Martín Diana (coord.)
- María Cristina León Cofreces (coord.)
- Elena Ordás Alesanco (coord.)
- Mariano Herrera García (dir. congr.)
Verlag: Instituto Tecnológico Agrario de Castilla y León ; Junta de Castilla y León
ISBN: 978-84-938243-0-3
Datum der Publikation: 2010
Seiten: 277-281
Kongress: Sociedad Española de Ovinotecnia y Caprinotecnia (SEOC). Jornadas (35. 2010. Valladolid)
Art: Konferenz-Beitrag
Zusammenfassung
The objective of this study was to investigate differences in dry matter (DM) yield and nutritive valueof organically and conventionally grown wheat and barley crops. Each cultivation system was carriedout in three plots for each cereal, and crops were sampled in May and July 2009. DM yield in organicplots was numerically lower compared with conventionally plots for all cultivations, but the differenceswere statistically significant (P<0.05) only for barley harvested in May. Crude protein contentwas lower (P≤0.001) in organic compared with conventional cultivars harvested in May, but in Julythis effect was only observed for wheat grain. Organic and conventionally grown crops did not differ(P>0.05) in their in vitro dry matter digestibility. The cultivation method did not affect (P>0.05) totalvolatile fatty acid production after incubating the samples with ruminal fluid, with the exception of agreater production (P=0.020) observed for conventional barley collected in May compared with organic.Organic barley and wheat straw collected in July produced a greater (P≤0.001) acetic/propionicratio after their in vitro fermentation with ruminal fluid