This study examined the impact of three distinct grazing management strategies on the mineral composition of bulked native herbaceous forages within the sourveld and sweetveld ecosystems of South Africa's Eastern Cape province. The grazing management treatments examined were communal continuous (CC), holistic planned grazing (HPG), and commercial rotational (CR), each implemented across both veld types. Herbaceous forage samples were harvested from transects distributed along the lower, middle, and upper slopes of each site. Bulked, ground herbaceous forages were analysed for macro-elements (K, Ca, Mg, and P) and micro-elements (Fe, Zn, Mn, and Cu). Results highlighted notable differences between sourveld and sweetveld forages, with sourveld exhibiting higher macro-nutrient levels while sweetveld displayed elevated micronutrient concentrations, except for Mn. In sourveld areas, grazing management significantly affected (P < 0.05) the concentration of both macro and micro-elements except Zn. Additionally, the year (season) exerted significant effects (P < 0.05) on levels of Ca, K, Mg, Cu, Fe, and Zn, though not on P and Mn. Noteworthy interactions were observed, such as the influence of management practice by year by landscape position on P levels, and management by year on Zn and Mn levels. In sweetveld areas, management practices significantly impacted (P < 0.05) the levels of Ca, K, Mg, Cu, Zn, and Mn. Overall, grazing management practice and yearly (seasonal) variations emerged as the primary factors influencing forage mineral status. The analysis indicated deficiencies in P and Cu across both veld types, implying insufficient levels to meet ruminant animal requirements. Moreover, other elements potentially displayed marginal to deficient supplies, particularly in areas with continuous grazing. Consequently, supplementation may be necessary in both veld types. Future research could explore animal blood serum mineral levels to devise practical supplementation regimes aimed at averting potential deficiencies.
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