在南非东开普省，山羊在Vachellia karroo侵占公共土地和开阔草原上觅食

IF 1.4 4区环境科学与生态学 Q3 ECOLOGY

African Journal of Range & Forage Science Pub Date : 2023-02-10 DOI:10.2989/10220119.2022.2123856

W. Maguraushe, J. Mupangwa, S. Washaya, V. Muchenje

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引用次数: 1

摘要

本研究的目的是评价季节、牧场类型和牧群规模对山羊采食性能的影响。对Mbashe和Nkonkobe市共80个社区家庭山羊群进行了为期12个月的监测。研究了季节、牧场类型和牧群规模对山羊平均日增重(ADG)、体况评分(BCS)、体重(BW)、出生、购买、销售、死亡、山羊生产潜力(GPP)和山羊生产效率(GPE)的影响。Mbashe社区被认为是开阔草原的代表，而Nkonkobe社区则代表Vachellia karroo侵占的牧场。对各等级山羊约1 560只进行了监测。结果表明:在大型牧群中，卡鲁乌入侵草地的进栏数、出生数和销售数均高于开阔草地(p < 0.05);放牧规模大、放牧规模小时，放牧草地的GPP和GPE均高于露天草地(p < 0.05)。山羊种群动态、去势体重、销售和GPE在不同季节间显著高于对照组(p < 0.05)。结果表明，大群的山羊在放牧过程中表现较好，表明灌木入侵对山羊养殖有利。

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Performance of goats browsing on Vachellia karroo encroached communal lands and open grasslands in the Eastern Cape province, South Africa

The objective of this study was to evaluate the effects of season, rangeland type, and herd size on the performance of goat browsing. A total of eighty communal household goat herds from Mbashe and Nkonkobe municipalities were monitored for twelve months. The effect of season, rangeland type and herd size on average daily gain (ADG), body condition score (BCS), body weight (BW), births, purchases, sales, deaths, goat production potential (GPP) and goat production efficiency (GPE) were evaluated. The Mbashe community was regarded to represent open grassland, while the Nkonkobe community represented the Vachellia karroo encroached rangeland. Approximately 1 560 goats of all classes were monitored. Results showed that more entries, births and sales, but fewer deaths, were recorded in V. karroo encroached rangeland than open grassland for larger herds (p < 0.05). The GPP and GPE were higher in V. karroo encroached rangeland than open grassland for larger than smaller herds (p < 0.05). Goat population dynamics, BW for castrates, sales and GPE were significantly higher among seasons (p < 0.05). It was concluded that larger herds of goats browsing V. karroo performed better in comparison to those that grazed open grasslands, which demonstrates that bush encroachment can benefit goat farming.

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来源期刊

African Journal of Range & Forage Science ECOLOGY-ENVIRONMENTAL SCIENCES

CiteScore

4.00

自引率

14.30%

发文量

审稿时长

>12 weeks

期刊介绍： The African Journal of Range & Forage Science is the leading rangeland and pastoral journal in Africa. The Journal is dedicated to publishing quality original material that advances rangeland ecology and pasture management. The journal aims to publish research of international importance from any region, but as an African journal, we are particularly interested in research from Africa and relevant to the continent. The Journal promotes both science and its application and authors are encouraged to explicitly identify the practical implications of their work. Peer-reviewed research papers and research notes deal primarily with all aspects of rangeland and pasture ecology and management, including the ecophysiology and biogeochemistry of rangelands and pastures, terrestrial plant–herbivore interactions (both domestic and wild), rangeland assessment and monitoring, effects of climate change on rangelands, rangeland and pasture management, rangeland rehabilitation, ecosystem services in support of production, conservation and biodiversity goals, and the identification and development of intensive and semi-intensive pasture and forage resources to meet livestock production needs. Articles highlighting transdisciplinary linkages among biophysical and social sciences that support management, policy and societal values are particularly encouraged. The Journal includes relevant book reviews and invited perspectives that contribute to the development of range and forage science. Letters to the editor that debate issues raised in the Journal are acceptable. The African Journal of Range & Forage Science is the official journal of the Grassland Society of Southern Africa.