Description
The indigenous Lagune, a breed tolerant to trypanosomiasis, is an excellent candidate to meet the ongoing environmental changes sustainably. This cattle breed could be kept like small ruminants, tethered in grasslands, or free grazing. A study was conducted to assess the grazing behavior of Lagune cattle under the two grazing systems to identify the best systems for sustainable production and conservation of the breed. For this study, four Lagune cattle farms, 02 under free-roaming and 02 others in the tethered system, were selected in the original belt of the Lagune cattle, the agro-ecological (AEZ) zones of Valley and Pobe. The step-point method was used to assess plant species diversity in grazing lands. Three (03) cows per farm were monitored while grazing for 03 consecutive days. The grazing itinerary and grazing activities were registered to allow the calculation of grazing length and duration. The most consumed plant species were identified. Results showed that 133 plant species belonging to 27 families were recorded in the grazing lands in both studied AEZs. Animals walked longer per day (p < 0.0001) in the free grazing system (7.07±1.26 km) than in the tethered system (1.77±0.59 km). On the contrary, grazing duration was higher (p<0.0001) in the tethered system (7.88±1.31h). The Lagune diet consisted mainly of herbs; 23 forage species from 14 families were grazed. Most of the species belong to the families of Poaceaes (34.78%), Convolvulaceaes (8.7%), and Euphorbiaceaes (8.7%). The study suggests free grazing allows better utilization of the forage species available in grasslands. Further studies could investigate diet selection by the indigenous Lagune cattle and the nutritional balance of the animals.
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Grazing Behavior of the Endemic Lagune Cattle in the Sub-Humid Savannahs of Benin
The indigenous Lagune, a breed tolerant to trypanosomiasis, is an excellent candidate to meet the ongoing environmental changes sustainably. This cattle breed could be kept like small ruminants, tethered in grasslands, or free grazing. A study was conducted to assess the grazing behavior of Lagune cattle under the two grazing systems to identify the best systems for sustainable production and conservation of the breed. For this study, four Lagune cattle farms, 02 under free-roaming and 02 others in the tethered system, were selected in the original belt of the Lagune cattle, the agro-ecological (AEZ) zones of Valley and Pobe. The step-point method was used to assess plant species diversity in grazing lands. Three (03) cows per farm were monitored while grazing for 03 consecutive days. The grazing itinerary and grazing activities were registered to allow the calculation of grazing length and duration. The most consumed plant species were identified. Results showed that 133 plant species belonging to 27 families were recorded in the grazing lands in both studied AEZs. Animals walked longer per day (p < 0.0001) in the free grazing system (7.07±1.26 km) than in the tethered system (1.77±0.59 km). On the contrary, grazing duration was higher (p<0.0001) in the tethered system (7.88±1.31h). The Lagune diet consisted mainly of herbs; 23 forage species from 14 families were grazed. Most of the species belong to the families of Poaceaes (34.78%), Convolvulaceaes (8.7%), and Euphorbiaceaes (8.7%). The study suggests free grazing allows better utilization of the forage species available in grasslands. Further studies could investigate diet selection by the indigenous Lagune cattle and the nutritional balance of the animals.
