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Journal Article 1996

Autor: Powell, J.M. Fernández Rivera, S. Hiernaux, Pierre H.Y. Turner, M.D.

In the Sahel of West Africa, the productivities of rangelands, croplands and livestock are inextricably linked. Cattle, sheep and goats graze rangelands and crop residues, and their manure/urine is used to fertilize crops. Rangelands provide important feeds during the manuring period, resulting i...

Enlace original: https://cgspace.cgiar.org/handle/10568/28104

Investigación en Agricultura
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Powell, J.M. ,  Fernández Rivera, S. ,  Hiernaux, Pierre H.Y. ,  Turner, M.D. ,  [Nutrient cycling in integrated rangeland/cropland systems of the Sahel] ,  Nutrient cycling in integrated rangeland/cropland systems of the Sahel
Journal Article 2002

Autor: Ayantunde, Augustine A. Fernández Rivera, S. Hiernaux, Pierre H.Y. Keulen, H. van Udo, H.M.J.

The influence of night grazing on feeding behavior, nutrition and performance of cattle was studied. Twenty-four steers weighing 367 kg (SD = 76) grazed either from 0900 to 1900 (day grazers), 2100 to 0700 (night grazers) or 0900 to 1900 and 2400 to 0400 (day-and-night grazers) during 13 weeks. F...

Enlace original: https://cgspace.cgiar.org/handle/10568/29103

Investigación en Agricultura
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Ayantunde, Augustine A. ,  Fernández Rivera, S. ,  Hiernaux, Pierre H.Y. ,  Keulen, H. van ,  Udo, H.M.J. ,  [Day and night grazing by cattle in the Sahel] ,  Day and night grazing by cattle in the Sahel
Journal Article 2001

Autor: Jenet, A. Yimegnuhal, A. Tegegne, Azage Fernández Rivera, S. Kreuzer, M.
Enlace original: https://cgspace.cgiar.org/handle/10568/79272

Investigación en Agricultura
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Jenet, A. ,  Yimegnuhal, A. ,  Tegegne, Azage ,  Fernández Rivera, S. ,  Kreuzer, M. ,  [Water balance as well as nutrient utilization of Boran x Friesian dairy cows at different stages of lactation fed low quality diets] ,  Water balance as well as nutrient utilization of Boran x Friesian dairy cows at different stages of lactation fed low quality diets
Journal Article 1995

Autor: Williams, Timothy O. Powell, J.M. Fernández Rivera, S.

Animal manure is of vital importance in maintaining soil fertility in semiarid west Africa due to the low level of use of inorganic fertilizer. Using data from Niger however, it is shown that insufficient animals are available to provide the manure needed to sustain crop yields on a long-term bas...

Enlace original: https://cgspace.cgiar.org/handle/10568/29323

Investigación en Agricultura
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Williams, Timothy O. ,  Powell, J.M. ,  Fernández Rivera, S. ,  [Soil fertility maintenance and food crop production in semi-arid West Africa: Is reliance on manure a sustainable strategy?] ,  Soil fertility maintenance and food crop production in semi-arid West Africa: Is reliance on manure a sustainable strategy?
Journal Article 1995

Autor: Williams, Timothy O. Powell, J.M. Fernández Rivera, S.

Despite its vital role in supporting crop production, a key question that has often been posed is whether sufficient amounts of manure are available to permit adequate food production and improvement of soil quality on a long-term basis. While this question can be addressed at a regional, nationa...

Enlace original: https://cgspace.cgiar.org/handle/10568/29547

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Williams, Timothy O. ,  Powell, J.M. ,  Fernández Rivera, S. ,  [Manure availability in relation to sustainable food crop production in semi-arid West Africa: Evidence from Niger] ,  Manure availability in relation to sustainable food crop production in semi-arid West Africa: Evidence from Niger
Journal Article 2004

Autor: Jenet, A. Yimegnuhal, A. Fernández Rivera, S. Tegegne, Azage Osuji, P.O. McCrabb, G.J. Kreuzer, M.

In an experiment lasting from 1.5 years before, first calving until third parturition, 24 purebred indigenous Bos indicus (Boran) cows and 24 Boran crosses will; Holstein (proportionately 0.50 and 0 75 Holstein blood level) were given a diet composed of Bermuda grass hay and wheat bran (0 65: 0 3...

Enlace original: https://cgspace.cgiar.org/handle/10568/28308

Investigación en Agricultura
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Jenet, A. ,  Yimegnuhal, A. ,  Fernández Rivera, S. ,  Tegegne, Azage ,  Osuji, P.O. ,  McCrabb, G.J. ,  Kreuzer, M. ,  [Long-term response to feeding level in lactational performance of Boran (Bos indicus) and Boran X Holstein cows] ,  Long-term response to feeding level in lactational performance of Boran (Bos indicus) and Boran X Holstein cows
Journal Article 1998

Autor: Powell, J.M. Ikpe, F.N. Somda, Z.C. Fernández Rivera, S.

Most farming systems in semi-arid West Africa rely on organic matter recycling for maintaining soil fertility. The cycling of biomass through ruminant livestock into dung (faeces) and urine that fertilize the soil has long been an important factor in the nutrient cycling processes of these integr...

Enlace original: https://cgspace.cgiar.org/handle/10568/32910

Investigación en Agricultura
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Powell, J.M. ,  Ikpe, F.N. ,  Somda, Z.C. ,  Fernández Rivera, S. ,  [Urine effects on soil chemical properties and the impact of urine and dung on pearl millet yield] ,  Urine effects on soil chemical properties and the impact of urine and dung on pearl millet yield
Journal Article 2007

Autor: Mekoya, A. Oosting, Simon J. Fernández Rivera, S. Zijpp, A.J. van der

In the tropics, numerous organizations have promoted multipurpose fodder trees (MPFT) with an emphasis on exotic species. These species have generally been selected and recommended by the research system through the conventional nutritional and agronomic experimentation for use as animal feed and...

Enlace original: https://cgspace.cgiar.org/handle/10568/30007

Investigación en Agricultura
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Mekoya, A. ,  Oosting, Simon J. ,  Fernández Rivera, S. ,  Zijpp, A.J. van der ,  [Multipurpose fodder trees in the Ethiopian highlands: Farmers' preference and relationship of indigenous knowledge of feed value with laboratory indicators] ,  Multipurpose fodder trees in the Ethiopian highlands: Farmers' preference and relationship of indigenous knowledge of feed value with laboratory indicators
Journal Article 2009-03-15

Autor: Mekoya, A. Oosting, Simon J. Fernández Rivera, S. Tamminga, S. Zijpp, A.J. van der

The present experiment was conducted to study the effects of supplementation of Sesbania sesban on the milk yield of ewes and growth rate of their lambs. The experiment was done with animals that had been fed for 16 months on a basal diet of teff straw supplemented with concentrates alone (0% S. ...

Enlace original: https://cgspace.cgiar.org/handle/10568/328

Investigación en Agricultura
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Mekoya, A. ,  Oosting, Simon J. ,  Fernández Rivera, S. ,  Tamminga, S. ,  Zijpp, A.J. van der ,  [Effect of supplementation of Sesbania sesban to lactating ewes on milk yield and growth rate of lambs] ,  Effect of supplementation of Sesbania sesban to lactating ewes on milk yield and growth rate of lambs
Journal Article 1994

Autor: Fernández Rivera, S. Midou, A. Marichatou, H.

The influence of food allowance or level of food excess on diet selectivity and intake by sheep given pearl millet stover leaves, and the potential feeding value of the food leftovers (L) were studied. Animals were given food at four levels of L (100, 300, 500 and 700 g dry matter (DM) per day). ...

Enlace original: https://cgspace.cgiar.org/handle/10568/28269

Investigación en Agricultura
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Fernández Rivera, S. ,  Midou, A. ,  Marichatou, H. ,  [Effect of food allowance on diet selectivity and intake of pearl millet (Pennisetum glaucum) stover leaves by sheep] ,  Effect of food allowance on diet selectivity and intake of pearl millet (Pennisetum glaucum) stover leaves by sheep

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