Milk Quality and Carbon Footprint Indicators of Dairy Sheep Farms Depend on Grazing Level and Identify the Different Management Systems
Type de document
journalArticle
Langue source
-- Langue source --
Titre
Milk Quality and Carbon Footprint Indicators of Dairy Sheep Farms Depend on Grazing Level and Identify the Different Management Systems
Titre français
Titre anglais
Auteur(s)
- PLAZA Javier
- REVILLA Isabel
- NIETO Jaime
- HIDALGO Cristina
- SÁNCHEZ-GARCÍA Mario
- PALACIOS Carlos
Editeur(s)
Autre(s)
Id
VJ3IA8I8
Version
4111
Date ajout
25 mai 2021 13:14
Date modification
25 mai 2021 13:15
Résumé
Currently, there are very few studies in the dairy sheep sector associating milk quality and indicators regarding carbon footprint and their link to grazing levels. For 1 year, monthly milk samples and records related to environmental emissions and management systems were collected through surveys from 17 dairy sheep farms in the region of Castilla y León (Spain), in order to relate this information to the use of natural pastures under free grazing. Indicators were constructed on the collected data and subjected to a multivariate statistical procedure that involved a factor analysis, a cluster analysis and a population canonical analysis. By applying multivariate statistical techniques on milk quality and carbon footprint indicators, it was possible to identify the management system of the farms. From an environmental point of view, farms with a higher grazing level (cluster 4) were more sustainable, as they had the lowest carbon footprint (lower CO2, N2O and CO2 equivalent emissions per sheep and year) and the lowest energy consumption levels, which were gradually lower than those of farms in cluster 3; both indicators were much lower than those of farms in clusters 1 and 2. The milk quality of cluster 1 and 2 farms was significantly lower in terms of total protein and fat content, dry extract, omega-3 fatty acid levels and α-tocopherol content than farms in clusters 3 and 4, which had higher accessibility to grazing resources. In sum, the higher the use of natural resources, the lower the external inputs the farms required and the lower environmental impact and energy costs they have.
Note
None
CRAW tags
- AB - Modalité bio
- FREDO alimentation animale
- FREDO environnement
- FREDO mode élevage, bien-être et qualité
- FREDO qualité des produits
- GEO Espagne
- grazing
- lait
- livestock
- ovin
- pâturage
WEB tags
- carbon footprint
- dairy sheep
- grazing level
- management systems
- milk quality
- multivariate techniques
Titre de la publication
Animals
Volume
11
Pages
1426
Date caractères
2021/5
Date publication
26 mai 2021
Doi
10.3390/ani11051426
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