A comparative study of production performance and animal health practices in organic and conventional dairy systems
作者： Jenevaldo B Silva , Gisele M Fagundes , João PG Soares , Adivaldo H Fonseca , James P Muir
DOI: 10.1007/S11250-014-0642-1
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摘要: Health and production management strategies influence environmental impacts of dairies. The objective this paper was to measure risk factors on health parameters six organic conventional bovine, caprine, ovine dairy herds in southeastern Brazil over consecutive years (2006–2011). operations had lower milk per animal (P ≤ 0.05), calf mortality less incidence mastitis fewer rates spontaneous abortions reduced ectoparasite loads (P ≤ 0.05) compared flocks. Organic herds, however, greater prevalence internal parasitism than herds. In all systems, calves, kids, lambs oocyte counts adults. However, calves the group showed coccidiosis. addition, animals system exhibited parasitic resistance anthelmintics. Herd genetic potential, nutritive value forage, feed intake, pasture parasite loads, may have influenced productive parameters. Thus, although disease prevalence, future research might quantify potential implications these unreported factors.
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