共 14 条
[1]
Fernández-Rivera S.(1994)Effect of food allowance on diet selectivity and intake of pearl millet ( Animal Production 58 249-256
[2]
Midou A.(1987)) stover leaves by sheep Kraftfutter 70 118-124
[3]
Marichatou H.(1979)Problematik der Bedarfsermittlung in der Tierernährung Journal of Agricultural Science 93 217-222
[4]
Menke K.H.(1987)The estimation of the digestibility and metabolisable energy content of ruminant feeding stuffs from gas production when they are incubated with rumen liquor Agricultural Systems 25 261-277
[5]
Menke K.H.(1992)Nitrogen and phosphorus transfers in a crop-livestock system in West Africa Agricultural Systems 40 361-378
[6]
Raab L.(undefined)Population pressure, land degradation and sustainable agricultural technologies in the Sahel undefined undefined undefined-undefined
[7]
Salewski A.(undefined)undefined undefined undefined undefined-undefined
[8]
Steingass H.(undefined)undefined undefined undefined undefined-undefined
[9]
Fritz D.(undefined)undefined undefined undefined undefined-undefined
[10]
Schneider W.(undefined)undefined undefined undefined undefined-undefined