The effect of rumen adaptation to oxalic acid on selection of oxalic-acid-rich plants by goats

7 pages, 4 figures.

Detalles Bibliográficos
Autores: Duncan, Alan J., Frutos, Pilar, Young, Sheila A.
Tipo de recurso: artículo
Fecha de publicación:2000
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/9665
Acceso en línea:http://hdl.handle.net/10261/9665
Access Level:acceso abierto
Palabra clave:Diet selection
Oxalic acid
Rumen detoxification
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spelling The effect of rumen adaptation to oxalic acid on selection of oxalic-acid-rich plants by goatsDuncan, Alan J.Frutos, PilarYoung, Sheila A.Diet selectionOxalic acidRumen detoxification7 pages, 4 figures.Rumen microbial degradation is an important route for detoxification of secondary plant compounds encountered in the diets of free-grazing ruminants. Exposure to diets containing particular secondary plant compounds can lead to increased rates of secondary compound degradation in the rumen. An experiment was conducted to determine whether rumen adaptation to oxalic acid would influence the diet selection of goats offered choices between plant species differing in their oxalic acid content. Twelve adult female goats were divided into two groups of six animals each. One group received a daily oral dose, in gelatin capsules, of 0.6 mmol oxalic acid/kg live weight per d throughout the experiment while the other group received placebos consisting of empty gelatin capsules. After an adaptation period of 8 d, the animals were allowed to graze a mixture of spinach (rich in oxalic acid) and cabbage (low in oxalic acid) for 7 h/d on two consecutive days per week during four consecutive 1-week periods. Intervening days were spent on grass pasture. Diet composition and intake were measured using cuticular wax n-alkanes as internal markers. Results showed that adapted goats included a higher proportion of spinach in their diet (P<0.05) although absolute intakes of spinach were the same for the two groups. Goats in the oxalic-acid-adapted group consumed less cabbage than control animals (P<0.05) suggesting that adaptation to oxalic acid at the rumen level may have interfered with detoxification of cabbage-derived secondary plant compounds. Voluntary intake increased progressively through the four experimental periods (P<0.001) with a tendency for higher intakes among control than among adapted animals (P<0.1). The experiment demonstrates how differences in the rate of degradation of secondary plant compounds may influence diet selection in ruminants.Pilar Frutos is grateful to the Spanish Council for Scientific Research (Consejo Superior de Investigaciones Científicas, CSIC, Spain) for the provision of a postdoctoral grant. Thanks are due to the many colleagues at MLURI who assisted in planting out the experimental plots and to Luc Chaverot for invaluable help with weeding. Pat Moberly conducted the proximate analyses of the herbage. A. M. Sibbald, I. J. Gordon and J. A. Milne made useful comments on draft manuscripts. The work was funded by the Scottish Office Agriculture, Environment and Fisheries Department.Peer reviewedCambridge University Press200920092000info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_650198034 bytesapplication/pdfhttp://hdl.handle.net/10261/9665reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.1017/S000711450000009Xinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/96652026-05-22T06:33:51Z
dc.title.none.fl_str_mv The effect of rumen adaptation to oxalic acid on selection of oxalic-acid-rich plants by goats
title The effect of rumen adaptation to oxalic acid on selection of oxalic-acid-rich plants by goats
spellingShingle The effect of rumen adaptation to oxalic acid on selection of oxalic-acid-rich plants by goats
Duncan, Alan J.
Diet selection
Oxalic acid
Rumen detoxification
title_short The effect of rumen adaptation to oxalic acid on selection of oxalic-acid-rich plants by goats
title_full The effect of rumen adaptation to oxalic acid on selection of oxalic-acid-rich plants by goats
title_fullStr The effect of rumen adaptation to oxalic acid on selection of oxalic-acid-rich plants by goats
title_full_unstemmed The effect of rumen adaptation to oxalic acid on selection of oxalic-acid-rich plants by goats
title_sort The effect of rumen adaptation to oxalic acid on selection of oxalic-acid-rich plants by goats
dc.creator.none.fl_str_mv Duncan, Alan J.
Frutos, Pilar
Young, Sheila A.
author Duncan, Alan J.
author_facet Duncan, Alan J.
Frutos, Pilar
Young, Sheila A.
author_role author
author2 Frutos, Pilar
Young, Sheila A.
author2_role author
author
dc.subject.none.fl_str_mv Diet selection
Oxalic acid
Rumen detoxification
topic Diet selection
Oxalic acid
Rumen detoxification
description 7 pages, 4 figures.
publishDate 2000
dc.date.none.fl_str_mv 2000
2009
2009
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/9665
url http://hdl.handle.net/10261/9665
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.1017/S000711450000009X
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 98034 bytes
application/pdf
dc.publisher.none.fl_str_mv Cambridge University Press
publisher.none.fl_str_mv Cambridge University Press
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
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