Validation of Ovine Excreta Using in vitro Gas to Assess Feed for Ruminants

Abstract

Ovine excreta as inoculum for biogasification was used to assess in vitro and in sacco nutritive value of tropical pastures for ruminants. Pastures under study were: Paspalum notatum, Cynodon nlemfuensis, Panicum maximum, Sporobolus indicus, and Desmodium sp. Excreta were collected on grassy pastures areas. CO2  systematic injections prevented strict anaerobic microorganisms contact with oxygen. A positive and significant correlation resulted from biogasification using either ovine excreta or ovine ruminal fluid. Determinant coefficient was 0,79. Panicum maxi- mum and Cynodon nlemfuensis reached the highest nutritive value, while Sporobolus indicus showed the lowest one. Key Words: ovine excreta, digestibility, nutritive valu

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