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History of Newcastle disease in South Africa
Poultry production in South Africa, a so-called developing country, may be seen as a gradient between two extremes with highly integrated commercial enterprises with world-class facilities on one hand and unimproved rural chickens kept by households and subsistence farmers on the other. Although vac...
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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AOSIS
2017
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6238702/ https://www.ncbi.nlm.nih.gov/pubmed/28281777 http://dx.doi.org/10.4102/ojvr.v84i1.1306 |