Sheep and goat grazing diets on an annual Mediterranean grassland containing tall wheatgrass (Thinopyrum ponticum (PODP.))

Abstract The development of mixed grazing systems is an interesting alternative for the utilization of rangelands with ecological and/or economic limitations; therefore, the study of patterns and eating habits of different species in the same grazing area is important. A mixed grazing study was carr...

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Autores principales:	Castellaro G.,Giorgio L., Urra A.,Hernán A., Hidalgo A.,Javier A., Orellana M.,Carla L., Escanilla C.,Juan P.
Lenguaje:	English
Publicado:	Pontificia Universidad Católica de Chile. Facultad de Agronomía e Ingeniería Forestal 2018
Materias:	Dietary indexes microhistology mixed grazing small ruminants
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202018000300240
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spelling	oai:scielo:S0718-162020180003002402019-02-04Sheep and goat grazing diets on an annual Mediterranean grassland containing tall wheatgrass (Thinopyrum ponticum (PODP.))Castellaro G.,Giorgio L.Urra A.,Hernán A.Hidalgo A.,Javier A.Orellana M.,Carla L.Escanilla C.,Juan P. Dietary indexes microhistology mixed grazing small ruminants Abstract The development of mixed grazing systems is an interesting alternative for the utilization of rangelands with ecological and/or economic limitations; therefore, the study of patterns and eating habits of different species in the same grazing area is important. A mixed grazing study was carried out on a Mediterranean grassland sown with Thinopyrum ponticum 30 years ago (Rinconada de Maipú, Chile 33° 28’S; 70° 51ʼ W) with the purpose of quantifying the botanical composition, dietary overlap and selectivity indexes of the main grass species consumed by goats and sheep. Trophic behavior was studied in seven young Suffolk Down rams, seven young Merino-Precoz rams and seven young Boer-Criollo bucks grazing together during three grassland phenological stages. During the grassland vegetative stage, diets were mainly composed of annual grasses and forbs. Perennial grasses dominated the animals’ diets during the reproductive and dry grassland stages. The diversity of the goats’ diets was higher than that of the sheep, demonstrating greater plasticity in their dietary habits. However, in this environment, both species behaved as generalist herbivores. The level of diet overlap between the sheep and goats was high, especially when grazing during the grassland reproductive and dry phenological stages, suggesting potential competition during lower forage quality stages.info:eu-repo/semantics/openAccessPontificia Universidad Católica de Chile. Facultad de Agronomía e Ingeniería ForestalCiencia e investigación agraria v.45 n.3 20182018-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202018000300240en10.7764/rcia.v45i3.1836
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Dietary indexes microhistology mixed grazing small ruminants
spellingShingle	Dietary indexes microhistology mixed grazing small ruminants Castellaro G.,Giorgio L. Urra A.,Hernán A. Hidalgo A.,Javier A. Orellana M.,Carla L. Escanilla C.,Juan P. Sheep and goat grazing diets on an annual Mediterranean grassland containing tall wheatgrass (Thinopyrum ponticum (PODP.))
description	Abstract The development of mixed grazing systems is an interesting alternative for the utilization of rangelands with ecological and/or economic limitations; therefore, the study of patterns and eating habits of different species in the same grazing area is important. A mixed grazing study was carried out on a Mediterranean grassland sown with Thinopyrum ponticum 30 years ago (Rinconada de Maipú, Chile 33° 28’S; 70° 51ʼ W) with the purpose of quantifying the botanical composition, dietary overlap and selectivity indexes of the main grass species consumed by goats and sheep. Trophic behavior was studied in seven young Suffolk Down rams, seven young Merino-Precoz rams and seven young Boer-Criollo bucks grazing together during three grassland phenological stages. During the grassland vegetative stage, diets were mainly composed of annual grasses and forbs. Perennial grasses dominated the animals’ diets during the reproductive and dry grassland stages. The diversity of the goats’ diets was higher than that of the sheep, demonstrating greater plasticity in their dietary habits. However, in this environment, both species behaved as generalist herbivores. The level of diet overlap between the sheep and goats was high, especially when grazing during the grassland reproductive and dry phenological stages, suggesting potential competition during lower forage quality stages.
author	Castellaro G.,Giorgio L. Urra A.,Hernán A. Hidalgo A.,Javier A. Orellana M.,Carla L. Escanilla C.,Juan P.
author_facet	Castellaro G.,Giorgio L. Urra A.,Hernán A. Hidalgo A.,Javier A. Orellana M.,Carla L. Escanilla C.,Juan P.
author_sort	Castellaro G.,Giorgio L.
title	Sheep and goat grazing diets on an annual Mediterranean grassland containing tall wheatgrass (Thinopyrum ponticum (PODP.))
title_short	Sheep and goat grazing diets on an annual Mediterranean grassland containing tall wheatgrass (Thinopyrum ponticum (PODP.))
title_full	Sheep and goat grazing diets on an annual Mediterranean grassland containing tall wheatgrass (Thinopyrum ponticum (PODP.))
title_fullStr	Sheep and goat grazing diets on an annual Mediterranean grassland containing tall wheatgrass (Thinopyrum ponticum (PODP.))
title_full_unstemmed	Sheep and goat grazing diets on an annual Mediterranean grassland containing tall wheatgrass (Thinopyrum ponticum (PODP.))
title_sort	sheep and goat grazing diets on an annual mediterranean grassland containing tall wheatgrass (thinopyrum ponticum (podp.))
publisher	Pontificia Universidad Católica de Chile. Facultad de Agronomía e Ingeniería Forestal
publishDate	2018
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202018000300240
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Sheep and goat grazing diets on an annual Mediterranean grassland containing tall wheatgrass (Thinopyrum ponticum (PODP.))

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