Summary
Two experiments were carried out with Sudan zebu cattle and desert sheep to study the voluntary intake and digestibility of berseem(Medicago sativa) and Abu 70(Sorghum vulgare) forages when offeredad lib. alone and with supplements of molasses to the cattle and dura grain to the sheep. In both experiments the intake of berseem was significantly higher than Abu 70. Supplementation increased Abu 70 intake and while molasses significantly increased berseem intake by cattle, dura decreased its intake by sheep. On the basis of metabolic body size sheep showed a higher intake of these forages than cattle. There was no significant difference in DM digestibility between berseem and Abu 70 by cattle. Sheep digested berseem significantly better than Abu 70. Molasses and dura significantly increased the digestibility of Abu 70 by cattle and sheep but had no significant effect on the DM digestibility of berseem.
Résumé
Deux expériences ont été faites avec des zébus soudanais et des moutons du désert pour étudier la consommation volontaire et la digestibilité de fourrages deMedicago sativa et deSorghum vulgare donnésad libitum, seuls ou complémentés avec de la mélasse pour les bovins et du grain pour les moutons. Au cours des deux essais, la consommation deMedicago a été significativement plus élevée que celle deSorghum. La complémentation a augmenté la consommation deSorghum et, alors que la mélasse augmentait significativement la consommation par les bovins deMedicago, le grain faisait baisser celle des moutons. Au point de vue du métabolisme corporel, les moutons ont consommé plus ces fourrages que les bovins. La digestibilité de la matière sèche par les bovins n'a pas été significativement différente entre les deux fourrages. Les moutons ont mieux digéré leMedicago que leSorghum. Les additifs ont augmenté significativement la digestibilité duSorghum chez les deux espèces mais n'ont pas influé significativement sur la digestibilité de la matière sèche duMedicago.
Resumen
Se llevaron a cabo dos experimentos con ganado cebú sudanes y ovejas del desierto, bajo consumo voluntario deMedicago sativa y Sorghum vulgare Abu 70 sin suplementación y con suplementación de melaza para el ganado y de grano dura para las ovejas. En ambos experimentos el consumo deMedicago sativa fué más alto que el de sorgo. La suplementación incrementó el consumo de sorgo y la melazael consumo deMedicago sativa significativamente, mientras el grano dura disminuyó el consumo en ovejas. Con base en el tamaño metabólico, las ovejas consumieron en general más forraje que el ganado. No hubo diferencia significativa en digestibilidad de la MS entreMedicago sativa ySorghum vulgare Abu 70 en ganado. Las ovejas digirieron elMedicago sativa mejor que el sorgo. La melaza y el grano dura aumentaron sensiblemente la digestibilidad del sorgo en el ganado y ovejas, pero no tuvo mayor efecto en la digestibilidad de la MS delMedicago sativa.
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Ahmed, F.A., Ahmed, A.I. Intake and digestibility of berseem(Medicago sativa) and sorghum abu 70(Sorghum vulgare) forages by sudan zebu cattle and desert sheep. Trop Anim Health Prod 15, 7–12 (1983). https://doi.org/10.1007/BF02250753
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DOI: https://doi.org/10.1007/BF02250753