Sheep farming intensification and utilization of natural resources in a Mediterranean pastoral agro-ecosystem

Riedel, José Luis; Casasús, I.; Bernués, A.

doi:10.1016/j.livsci.2006.12.013

Cited by 91 publications

(67 citation statements)

References 23 publications

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“…As mentioned before, those FA can be improved when the ewe diet is based mostly on pastures. In Chile, sheep production is based largely on grazing systems, however, in Spain for example, sheep cheese is produced throughout the year leading to an intensification of reproductive management, and a reduction in grazing periods (Riedel et al, 2007). This type of system results in a substitution of on-farm natural resources (forages and pastures) with external inputs (conserved forages and concentrates) (Vera et al, 2009).…”

Section: Fatty Acid Profile Of Cheesesmentioning

confidence: 99%

“…This type of system results in a substitution of on-farm natural resources (forages and pastures) with external inputs (conserved forages and concentrates) (Vera et al, 2009). No differences were observed between French and Spanish sheep cheese so it is possible that these countries have similar conditions among their production systems including feeding, breeds and level of intensification of farm management (Riedel et al, 2007).…”

Section: Fatty Acid Profile Of Cheesesmentioning

confidence: 99%

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A comparative study of the fatty acid profiles in commercial sheep cheeses

Aguilar¹,

Toro-Mújica²,

Vargas‐Bello‐Pérez³

et al. 2014

Grasas y Aceites

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SUMMARY:The present study was carried out to characterize the FA profile of sheep cheese marketed in Chile. Fifty-eight cheeses were collected from supermarkets of 5 different Chilean cities including 34 sheep cheeses, 7 from goat's milk, 11 from cow's milk, 4 from a mixture of sheep, goat and cow's milk and 2 from a mixture of sheep and cow's milk. Compared to the cow and goat cheese (3.4 and 2.5 g·100g −1 ), the sheep cheese (3.8 g·100g −1 ) contained higher contents of C18:1t. The saturated and polyunsatured FA contents were greater in goat cheese than in sheep and cow cheese. The n6/n3 ratio was greater in goat (6.1) cheese than in sheep and cow cheese (3.8 and 5.2). The atherogenicity index was unaffected by cheese type, however, the thrombogenic index was lower in sheep cheese (2.8) than in goat and cow cheese (3.1 and 2.9). The n6/n3 ratio and thrombogenic index were lower in Chilean sheep cheese than in those imported from Europe. The fatty acid profile of cheese can be used to differentiate animal species from which the cheese is made and to some extent the geographical origin that may give some insight as to animal feed and production management. KEYWORDS:Cheese; Fatty acids; Milk; Sheep RESUMEN: Estudio comparativo del perfil de ácidos grasos de quesos de oveja comerciales. Este estudio fue llevado a cabo para caracterizar el perfil de AG de quesos de oveja que se comercializan en Chile. Cincuenta y ocho quesos fueron recogidos de supermercados de 5 ciudades de Chile de los cuales 34 fueron de oveja, 7 de cabra, 11 de vaca, 4 de mezcla de leche de oveja, cabra y vaca y 2 de mezcla de leche de oveja y vaca. Comparado con quesos de vaca y cabra (3.4 y 2.5 g·100g −1 ), los quesos de oveja (3.8 g·100g −1 ) presentaron mayor contenido de C18:1t. Los AG saturados y poliinsaturados tuvieron concentraciones más altas en los quesos de cabra que en los quesos de oveja y vaca. La relación n6/n3 fue más alta en quesos de cabra (6.1) que en quesos de oveja y vaca (3.8 y 5.2). El índice aterogénico no fue afectado por el tipo de queso, sin embargo, el índice trombogénico fue menor en quesos de oveja (2.8) que en quesos de cabra y vaca (3.8 y 5.2). La relación n6/n3 y el índice trombogénico fueron menores en quesos chilenos que en quesos importados de Europa. El perfil de AG de quesos puede ser usado para diferenciar entre especies animales de las cuales proviene el queso y hasta cierto grado, el origen geográfico, ofreciendo indicios sobre el tipo de alimento y sistema productivo animal del cual provienen los quesos. PALABRAS CLAVE: Ácidos grasos; Leche; Oveja; QuesoCitation/Cómo citar este artículo: Aguilar C, Toro-Mujica P, Vargas-Bello-Pérez E, Vera R, Ugalde C, Rodríguez S, Briones I. 2014. A comparative study of the fatty acid profiles in commercial sheep cheeses. Grasas Aceites 65 (4): e048.

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Section: Fatty Acid Profile Of Cheesesmentioning

confidence: 99%

Section: Fatty Acid Profile Of Cheesesmentioning

confidence: 99%

A comparative study of the fatty acid profiles in commercial sheep cheeses

Aguilar¹,

Toro-Mújica²,

Vargas‐Bello‐Pérez³

et al. 2014

Grasas y Aceites

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show abstract

“…The sheep stocking rates, though low, are higher than those reported by Gaspar et al (2008) for Dehesa in Extremadura, for the sheep-cereal systems of Castilla-La Mancha (Caballero, 2001), and for mixed systems of NE Spain 7 Changes in the pastoral sheep systems of semi-arid Mediterranean areas the increase in Iberian pig production signals a change in the farm systems and in the structure of their income (Gaspar et al, 2008). There was also a simultaneous replacement of native rangelands with improved pastures, stimulated by changed policies (EC Nº 1257EC, 2009), with loss of traditional pastoral activities (Bouju, 2000) and the development of "false grazing systems" (Castel et al, 2011), which leads to loss of valuable pastoral species, and an increase in undesirable species (Riedel et al, 2007;Jouven et al, 2010). The observed changes in technologies, livestock production and traditional pastoral activities need to be assessed against the background of highly valuable but fragile land resources, with the attending risks of soils and vegetation degradation.…”

Section: Discussionmentioning

confidence: 99%

“…All of them are characterized by extensive grazing on natural pastures, the use of local sheep breeds (mostly Merino and Segureña), low profitability, and production of high quality but highly seasonal products (Riedel et al, 2007;Gaspar et al, 2008;Castel et al, 2011).…”

Section: Typological Classificationmentioning

confidence: 99%

“…Sheep production is the main source of income for family farms in the Mountain Region, and it contributes to landscape conservation (Milán et al, 2003;Riedel et al, 2007). The sheep population of the Arid Region amounts to 71.2% of Spain's sheep flock (Boza et al, 2008), and it relies on extensive, low-input management, with an average stocking rate of 0.41 LU/ha, and seasonal grazing on cereal stubbles (Robles et al, 2001;Navarro et al, 2006).…”

Section: Typological Classificationmentioning

confidence: 99%

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Changes in the pastoral sheep systems of semi-arid Mediterranean areas: association with common agricultural policy reform and implications for sustainability

Toro-Mújica

Aguilar

Vera

et al. 2015

Span. j. agric. res.

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The dynamics of sheep systems the Mediterranean region have been influenced by reforms coming from the Common Agricultural Policy, and the general economic evolution of markets. The aim of this study was the analysis of the structural changes that occurred between 1999 and 2009, and the identification of future implications for the sheep systems in Andalusia region, Spain. Analysis of the structural changes allowed the generation of strategic information, identified trends that should suggest new rural policies and changes that are likely to have social and environmental impacts, and lastly, prioritize future research. The application of multivariate methodology allowed clustering the farm population into four groups. The typology of these systems was determined by variables related to the sheep subsystem, by the set of agricultural activities, and by changes in swine husbandry, within a context of changes in land tenure and the drive for agricultural intensification. Major modifications of extant systems included a 42% reduction in the number of farms, a decrease in sheep numbers, replacement of native rangelands with improved pastures, olive trees and orchards, a reduction of traditional extensive pastoral activities, and increases in hog production in Dehesa grasslands. Given the historical economic and social importance of the sheep-cereal system, the observed substantial modifications of land use suggest a need to assess their consequences in terms of social and environmental impacts, as well as their implications for climate change.

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The Use of Goats Grazing to Restore Pastures Invaded by Shrubs and Avoid Desertification: A Preliminary Case Study in the Spanish Cantabrian Mountains

2013

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Spanish mountains have been affected by the expansion of shrubs and forests since the mid‐20th century. This secondary succession in vegetation has some positive effects, but also drawbacks, such as an increase in fire risk, loss of diversity in land use, a reduction in landscape and cultural value, less water available in river channels and reservoirs, constraints on livestock farming, a reduced number of local species and loss of biodiversity. This paper analyses the potential for grazing domestic goats to help control the spread of several species of shrubs such as the common broom (Cytisus scoparius), red raspberry (Rubus idaeus) and roses (Rosa sp.) that are commonly found in degraded pastures in the Cantabrian Mountains of northern Spain. Using experimental plots, the effects of two levels of stocking density (4·5 and 9 goats ha−1 y−1) are compared with other land management systems used in the region: burning, mechanical clearing and trimming. The combined use of goats with support from burning, clearing and trimming controls the spread of shrubs. The most efficient treatment was found with nine goats ha−1 y−1. Goat grazing also changes the distribution of shrubs, transforming a dense and continuous coverage into separate clumps and thereby enabling livestock to graze more easily. Maintaining a mixed structure of shrubs and pastures is the best treatment due to the low population density of the Cantabrian Mountains, as this enhances the biodiversity, controls fire risk and enriches the landscape; it also allows extensive livestock grazing as a main economic resource. Copyright © 2013 John Wiley & Sons, Ltd.

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Sheep farming intensification and utilization of natural resources in a Mediterranean pastoral agro-ecosystem

Cited by 91 publications

References 23 publications

A comparative study of the fatty acid profiles in commercial sheep cheeses

A comparative study of the fatty acid profiles in commercial sheep cheeses

Changes in the pastoral sheep systems of semi-arid Mediterranean areas: association with common agricultural policy reform and implications for sustainability

The Use of Goats Grazing to Restore Pastures Invaded by Shrubs and Avoid Desertification: A Preliminary Case Study in the Spanish Cantabrian Mountains

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