search
for
 About Bioline  All Journals  Testimonials  Membership  News


Zootecnia Tropical
Instituto Nacional de Investigaciones Agrícolas Venezuela
ISSN: 0798-7269
Vol. 25, No. 3, 2007, pp. 225-228
Bioline Code: zt07033
Full paper language: Spanish
Document type: Research Article
Document available free of charge

Zootecnia Tropical, Vol. 25, No. 3, 2007, pp. 225-228

 es Degradabilidad de los pastos lambedora ( Leersia hexandra check for this species in other resources ) y paja de agua ( Hymenachne amplexicaulis check for this species in other resources ) en cuatro épocas del año de una sabana inundable del estado Apure, Venezuela
Aparicio, Rafael; González-Ronquillo, Manuel; Torres, Rene; Astudillo, Luís; Cordova, Luís & Carrasque, José

Resumen

Se determinó la degradabilidad de la materia seca (DMS, g/kg. MS) de mezclas de los pastos Leersia hexandra check for this species in other resources e Hymenachne amplexicaulis check for this species in other resources tomadas en cuatro épocas del año: Seca, TSLL (transición sequía - lluvia), Lluvia y TLLS (transición lluvia - sequía) de una sabana inundable del estado Apure, mediante la técnica in vitro de producción de gas (mL/g MS). Después de 24 horas de incubación se encintraron diferencias significativas en la producción acumulada de gas en toda las épocas, con mayor producción de gas a las 96 h para la épocas de lluvias (142,8) y TSLL (128,2) en comparación con la épocas seca (106,9) y TLLS (105,5). La DMS a las 96 horas fue significativamente superior en las épocas TSLL (52,3) y lluvia (50,5) con respecto a la épocas seca (38,9) y TLLS (40,5). En estas dos especies forrajeras se observa que la tasa de digestión sobrepasa el 50% en las épocas TSLL y lluvia, principalmente producto del rebrote, en tanto que en las épocas TLLS y sequía esta por debajo de los limites.

Palabras-clave
Sabanas inundables, producción de gas in vitro.

 
 en Degradability of lambedora ( Leersia hexandra check for this species in other resources ) and paja de agua ( Hymenachne amplexicaulis check for this species in other resources ) grasses in four seasons of the year in a flooding savanna of Apure state, Venezuela
Aparicio, Rafael; González-Ronquillo, Manuel; Torres, Rene; Astudillo, Luís; Cordova, Luís & Carrasque, José

Abstract

It was determined the degradability of the dry matter (DMD, g/kg. MS) of mixtures of the pastures Leersia hexandra check for this species in other resources and Hymenachne amplexicaulis check for this species in other resources taken in four seasons of the year: Drought, TSLL (transition drought - rainy), Rainy, and TLLS (transition rainy - drought) on flooding savannas of Apure state, by using the in vitro gas production technique. After 24 h of incubation there were differences in the accumulated gas production in all seasons, with the highest gas production (mL/g DM) at 96 h for the rainy (142.8) and TSLL (128,2) seasons in comparisons with the dry (106.9) and TLLS (105.5) seasons. The DMD at 96 h was significantly different in the TSLL (52.3) and rainy (50.5) seasons in comparison to the drought (38.9) and TLLS (40.5) seasons. In these two species it was observed that the rate of digestion exceeded 50% in the TSLL and rainy seasons, principally due to the new shoots, while in the TLLS and drought was below the limits.

Keywords
Flooding savannas, in vitro gas production.

 
© Copyright 2007 - Zootecnia Tropical
Alternative site location: http://www.sian.inia.gob.ve/repositorio/revistas_ci/ZootecniaTropical/ztindice.htm

Home Faq Resources Email Bioline
© Bioline International, 1989 - 2023, Site last up-dated on 01-Sep-2022.
Site created and maintained by the Reference Center on Environmental Information, CRIA, Brazil
System hosted by the Google Cloud Platform, GCP, Brazil