Show simple item record

resumen

Abstract
The Patagonian rangelands are dominated by steppes interspersed with meadows (locally called mallines), which are small but permanently humid areas, characterised by high spring–summer quality and productivity of grasses and grasslikes. The region’s main economic activity is sheep ranching, either alone or mixed with goats and/or cattle, using horses as transportation animals. Overstocking has been signalled as one of the causes of rangeland degradation [ver mas...]
dc.contributor.authorVillagra, Edgar Sebastian
dc.contributor.authorPelliza, Alicia
dc.contributor.authorWillems, Priscila Mabel
dc.contributor.authorSiffredi, Guillermo Lorenzo
dc.contributor.authorBonvissuto, Griselda
dc.date.accessioned2019-04-24T18:27:32Z
dc.date.available2019-04-24T18:27:32Z
dc.date.issued2013-02
dc.identifier.issn1836-0939
dc.identifier.otherhttps://doi.org/10.1071/AN11283
dc.identifier.urihttp://hdl.handle.net/20.500.12123/4971
dc.description.abstractThe Patagonian rangelands are dominated by steppes interspersed with meadows (locally called mallines), which are small but permanently humid areas, characterised by high spring–summer quality and productivity of grasses and grasslikes. The region’s main economic activity is sheep ranching, either alone or mixed with goats and/or cattle, using horses as transportation animals. Overstocking has been signalled as one of the causes of rangeland degradation in this region. Knowledge of botanical composition of livestock diets provides valuable information helping in the design of management strategies to improve or maintain the forage resource. With this objective we studied the dietary botanical composition of domestic livestock on Patagonian ranches with and without mallines, at different seasons. It was found that the differences between diets of the same herbivore species on ranches with and without mallines were greater than the differences among the diets of the different herbivores species grazing in the same type of ranch. Grasses were the forage class most consumed by livestock in 76% of ranches without mallines and in 38% of the diets of ranches with them, with Stipa spp. being the main species consumed. Grass-like species were important in ranches with mallines, specially Juncus spp., and woody plants (Chuquiraga spp. as the most consumed) in ranches without mallines. Forbs hardly exceeded 10% in some spring diets of sheep, at both ranch types. Grasslikes constituted the major component of the spring and summer cattle diets, and constituted one-third of winter diets. For the rest of the herbivores studied, this forage class was important in spring–summer diets, but insignificant in the winter samples. Goats showed a greater use of the shrub in the less productive ranches and they were the most important consumers of shrubs on ranches with mallines during winter, which is the critical season of forage production. We conclude that the presence of mallines strongly condition the diet composition of the studied domestic herbivores. And, since the use of forage classes is different between these animal species, given a ranch type, the replacement of single-species grazing by mixed grazing can achieve the optimal possible use of the Patagonian rangelands.es_AR
dc.formatapplication/pdfes_AR
dc.language.isoenges_AR
dc.publisherCSIRO Publishinges_AR
dc.rightsinfo:eu-repo/semantics/restrictedAccesses_AR
dc.sourceAnimal Production Science 53(4) : 360-367. (2013)es_AR
dc.subjectPastizaleses_AR
dc.subjectPastureses_AR
dc.subjectPastizal Naturales_AR
dc.subjectNatural Pastureses_AR
dc.subjectNutrición Animales_AR
dc.subjectAnimal Nutritiones_AR
dc.subjectLivestockeng
dc.subjectGanado
dc.subject.otherRegión Patagónicaes_AR
dc.titleWhat do domestic livestock eat in northern Patagonian rangelands?es_AR
dc.typeinfo:ar-repo/semantics/artículoes_AR
dc.typeinfo:eu-repo/semantics/articleeng
dc.typeinfo:eu-repo/semantics/publishedVersioneng
dc.description.origenEstación Experimental Agropecuaria Barilochees_AR
dc.description.filFil: Villagra, Edgar Sebastián. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche; Argentinaes_AR
dc.description.filFil: Pelliza, Alicia. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche; Argentinaes_AR
dc.description.filFil: Willems, Priscila Mabel. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche; Argentinaes_AR
dc.description.filFil: Siffredi, Guillermo Lorenzo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche. Área de Recursos Naturales; Argentinaes_AR
dc.description.filFil: Bonvissuto, Griselda. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche; Argentinaes_AR
dc.subtypecientifico


Files in this item

Thumbnail

This item appears in the following Collection(s)

common

Show simple item record