Informations et ressources scientifiques
sur le développement des zones arides et semi-arides

Accueil du site → Master → Botswana → Soil-plant-animal continuum in relation to macro and micro mineral status of Tswana sheep at Goodhope and Morale ranches in Botswana

Botswana University of Agriculture and Natural Resources (BUANR) 2014

Soil-plant-animal continuum in relation to macro and micro mineral status of Tswana sheep at Goodhope and Morale ranches in Botswana

Maule, Bakani Victor

Titre : Soil-plant-animal continuum in relation to macro and micro mineral status of Tswana sheep at Goodhope and Morale ranches in Botswana

Auteur : Maule, Bakani Victor

Université de soutenance : Botswana University of Agriculture and Natural Resources (BUANR)

Grade : Master of Science (MSc) 2014

Résumé partiel
This study reports the concentration of macro and micro minerals in soil, forage, water and blood of Tswana sheep at Morale and Goodhope ranches. The main aim of the study was to evaluate mineral status of soil, forage, water and their absorption by sheep under the influence of season and site in relation to their critical requirement values. Soil, forage, water and blood plasma samples were collected from these two study sites once every’ two months of wet (November to April) and dry (May to October) seasons. There was a significant (P<0.05) difference between the soil sampled from Goodhope and Morale ranches during the dry season on the concentration of Ca, Na, K, P, Zn, Cu and Fe, while during the wet season the difference between the two sites was on Ca, Mg, Na, K, P, Cu and Fc. Soils Ca, Mg, K, Mn, Zn, Cu, Fe concentration for both locations were found to be within the required range (250 mg/kg, 30mg/kg, I7mg/kg, 5mg/kg, 0.5mg/kg and 0.3mg/kg respectively) for growth of forage while Na and P concentrations were below’ (62mg/kg and 17mg/kg) the forage growth requirement. There was a significant (P<0.05) difference between the forage sampled from Goodhope and Morale ranches during the dry season on the concentration of Mg, Na, K, P, Mn, Zn, Cu and Fe, while during the wet season the difference between the two sites was on Na, K, P, Mn, Zn and Fe. In water only Na was Influenced (P<0.05) by interaction of site and season. Forage K, Mn, Zn and Fe were within critical levels (0.60%, 20ppm, 30ppm, and 50ppm) respectively while Ca, Mg, Na, P, and Cu were below the sheep necessary requirement (0.35%, 0.20%, 0.08%, 0.25%, and 8ppm respectively. There was no noticeable difference (P>0.05) in plasma Ca, Mg, K, Na, Mn, Zn, Fe and Cu concentration between yearling sheep of Morale and of Goodhope ranches during wet and dry season.

Présentation

Version intégrale (45 Mb)

Page publiée le 25 décembre 2022