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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...


Ayantunde, Augustine A.Fernández Rivera, S.Hiernaux, Pierre H.Y.Keulen, H. vanUdo, H.M.J.[Day and night grazing by cattle in the Sahel]Day and night grazing by cattle in the Sahel

Sustainable use (in terms of nutrients) of soil resources by farmers in Sub-Saharan Africa is constrained by institutions and markets. This paper explores the case of northern Nigeria, by using a combination of multi-attribute utility theory and bio-economic modelling. This approach allowed us to...


Berkhout, E.D.Schipper, R.A.Keulen, H. vanCoulibaly, O.[Heterogeneity in farmers production decisions and its impact on soil nutrient use: results and implications from northern Nigeria]Heterogeneity in farmers production decisions and its impact on soil nutrient use: results and implications from northern Nigeria
Ridder, N.A. deBenjamin, R.W.Keulen, H. van[Forage selection and performance of sheep grazing dry annual range]Forage selection and performance of sheep grazing dry annual range

The selective use by cattle of range resources in the Sahel was assessed in terms of quantity and nutritional quality of the herbage grazed and diet selected. Peak standing crop was 1951 kg ha -1 dry matter (DM) with 47.9 kg nitrogen (N) ha-1 and 7.4 kg phosphorus (P) ha -1. Esophageally fistulat...


Ayantunde, Augustine A.Hiernaux, Pierre H.Y.Fernández Rivera, S.Keulen, H. vanUdo, H.M.J.[Selective grazing by cattle on spatially and seasonally heterogenous rangeland in Sahel]Selective grazing by cattle on spatially and seasonally heterogenous rangeland in Sahel

A survey was conducted from February to June of 1997 among livestock herders in two villages of Niger, Kodey and Toukounous, on their perceptions, practice, and problems of night grazing. Cattle and sheep were the species that were taken out for night grazing by the herders. Small herd size an...


Ayantunde, Augustine A.Williams, Timothy O.Udo, H.M.J.Fernández Rivera, S.Hiernaux, Pierre H.Y.Keulen, H. van[Herders' perceptions, practice, and problems of night grazing in the Sahel: Case studies from Niger]Herders' perceptions, practice, and problems of night grazing in the Sahel: Case studies from Niger

Sixty-four Azawak male weaned calves were allotted to eight treatments (T) in two trials to study the effect of timing (day or day-and-night) and duration of grazing on diet selection, faecal output, eating time, forage intake and weight changes. Grazing time during the day was 6 h for T 1, 2 and...


Ayantunde, Augustine A.Fernández Rivera, S.Hiernaux, Pierre H.Y.Keulen, H. vanUdo, H.M.J.Chanono, M.[Effect of timing and duration of grazing of growing cattle in the West African Sahel on diet selection, faecal output, eating time, forage intake and live-weight changes and nutrition and performance of cattle]Effect of timing and duration of grazing of growing cattle in the West African Sahel on diet selection, faecal output, eating time, forage intake and live-weight changes and nutrition and performance of cattle

Sxity-four Azawak male calves were used to study the effect of nocturnal grazing (NG) and supplementation (S) in the dry season on forage and water intake, faecal output, eating time and weight changes of cattle in the Sahel. Treatments were factorial combinations of four levels of NG (0, 2, 4 an...


Ayantunde, Augustine A.Fernández Rivera, S.Hiernaux, Pierre H.Y.Keulen, H. vanUdo, H.M.J.Chanono, M.[Effect of nocturnal grazing and supplementation on diet selection, eating time, forage intake and weight changes of cattle]Effect of nocturnal grazing and supplementation on diet selection, eating time, forage intake and weight changes of cattle

Agricultural production in the semi-arid agro-ecosystems of the Sahel centres on cereal staple crops and pastoralism with increasing crop-livestock integration. Animals mobilize soil fertility through manure production, graze crop by-products, and transfer nutrients from distant pastures to crop...


Rovere, R. LaHiernaux, Pierre H.Y.Keulen, H. vanSchiere, J.B.Szonyi, J.A.[Co-evolutionary scenarios of intensification and privatization of resource use in rural communities of south-western Niger]Co-evolutionary scenarios of intensification and privatization of resource use in rural communities of south-western Niger

In semi-arid south-western Niger, climatic variability, low productivity, poverty and institutional constraints limit the scope of agricultural production to meet the rising needs of the growing human population. The integration of crop and livestock production activities has long been seen as th...


Rovere, R. LaHiernaux, Pierre H.Y.Keulen, H. van[Options for intensification of mixed crop-livestock systems in rural communities of south-western Niger: Prospects and constraints]Options for intensification of mixed crop-livestock systems in rural communities of south-western Niger: Prospects and constraints

Forage intake and feeding behaviour of cattle grazing during day and/or night was studied in Sadore between February and May (late dry season) 1995 and, in Toukounous, Niger, between July 1995 and May 1996, covering wet (WS), early dry (EDS) and late dry (LDS) seasons. In Sadore, 24 steers grazed...


Ayantunde, Augustine A.Fernández Rivera, A.Hiernaux, Pierre H.Y.Keulen, H. vanUdo, H.M.J.[Forage intake and feeding behaviour of day and/or night grazing cattle in sahelian rangelands]Forage intake and feeding behaviour of day and/or night grazing cattle in sahelian rangelands

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