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Título : Potential use of heather to control gastrointestinal nematodes in goats
Autor : Moreno-Gonzalo, J.
Ferre, I.
Celaya, R.
Frutos, P.
Ferreira, L. M. M.
Hervás, G.
García, U.
Ortega-Mora, L. M.
Osoro, K.
Palabras clave : Goat
Gastrointestinal nematode
Anthelmintic control
Animal performance
Fecha de publicación : mar-2012
Editorial : Elsevier
Citación : Moreno-Gonzalo, J.; Ferre, I.; Celaya, R. [et al.]. Potential use of heather to control gastrointestinal nematodes in goats. Small Ruminant Research. 2012; 103 (1): 60-68.
Resumen : In the last decade, numerous studies have been carried out to evaluate the potential anthelmintic benefit of the consumption of bioactive plants in small ruminants, in order to reduce the dependence on conventional chemotherapy and supporting a sustainable control of gastrointestinal (GI) parasitism. This review summarizes the anthelmintic and nutritional effects of heather (shrub species belonging to the Ericaceae family, such as Erica spp. or Calluna vulgaris) supplementation in grazing goats naturally infected by GI nematodes. The experiments were carried out in a mountain area in north-western Spain where shrubby heather-gorse vegetation is dominant. Some plots were established, in which the vegetation had been improved by soil ploughed and dressing and sowing perennial ryegrass (Lolium perenne) and white clover (Trifolium repens), and removing any heather that was present. Cashmere goats reared outdoors under pasture conditions were used in the experiments. The trials compared the response to GI nematode infections, animal performance and nutrition in goats supplemented or not with heather. Interactions between heather availability and other alternative methods to control GI nematode infections based on grazing management (stocking rate) or nutrition (energy supply) as well as the potential adaptation of the rumen microbiota to the consumption of tannins, were also studied. The results suggest that (i) heather supplementation in grazing goats significantly reduces the level of GI nematode egg excretion, (ii) the faecal nematode egg count reduction could be associated with a decrease in worm fertility and/or reduction in the establishment of incoming third-stage larvae, (iii) consumption of heather is associated with an apparent greater resilience of goats to GI nematode infections, and (iv) the amount of tannins consumed by the goats supplemented with heather does not seem to be associated to anti-nutritional effects which eventually resulted in a better animal performance in the animals incorporating these shrubs in their diet. Practical application of this knowledge in temperate areas would support the management of plots integrating improved pastures with high nutritive value (ryegrass-white clover) with natural vegetation communities.
URI : http://ria.asturias.es/RIA/handle/123456789/3863
ISSN : 0921-4488
Aparece en las colecciones: Agroalimentación y Ganadería
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