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Title: Use of Pastured Pigs as a Holistic Land and Livestock Management Tool for Restoration of Degraded Rangelands: A Case Study of Dimbangombe, Zimbabwe
Authors: Moyo, Precious S.
Keywords: Pastured pigs
Degraded rangelands
Grass species composition
Issue Date: May-2018
Publisher: Lupane State University
Abstract: This study evaluated the effects of using pastured pigs as a holistic land and livestock management (HLLM) tool in restoring degraded rangelands in Dimbangombe. Vegetation attributes were determined in four paddocks under holistic grazed and non-grazed sites. Each paddocks had sub-paddocks of 30mx30m where pigs graze for a maximum of two days. Frequencies of occurrence were calculated for grass species composition. Species richness, diversity and evenness were determined using the Shannon diversity Index. Results revealed that grazed vleis had higher species composition over grazed rocky and ungrazed sites with high frequency of perennial grasses of high to average grazing value e.g. Heteropogon contortus, Panicum maximum and Urochloa mosambicensis. The results of the MANOVA show that terrain had a significant effect (P<0.05) on species richness where means of vleis were higher than those of the rocky sites. Grazing had no significant effect (P<0.05) on species diversity, richness and evenness. The HLLM effect using pastured pigs had not yet shown the positive effects or any significant vegetation shift may be because the parameters measured change in the medium to long term and may not have shown effects in two seasons of study and the period the project has since been implemented. However, further monitoring of the study sites would be helpful in determining the long-term effects of holistic grazing management in the rangelands.
Appears in Collections:Department of Animal and Rangeland Management

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