Preliminary feasibility of near-infrared spectroscopy to authenticate grazing in dairy goats through milk and faeces analysis

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Author
Rodríguez-Hernández, Pablo
Díaz-Gaona, Cipriano
Reyes-Palomo, Carolina
Sanz-Fernández, Santos
Sánchez-Rodríguez, M.
Rodríguez-Estévez, Vicente
Núñez-Sánchez, Nieves
Publisher
MDPIDate
2023Subject
RuminantsGrazing authentication
Chemometrics
NIRS
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Nowadays, society demands certification and authentication methodologies that are able to clarify the origin of different livestock products. This is considered of paramount importance in order to not only provide accurate information to consumers, but also to protect producers against fraudulent practices. In this context, the aim of this study is to establish a methodology to authenticate the grazing activity of dairy goats. To achieve this, milk and faeces samples were analysed using Near-Infrared Spectroscopy. The good results obtained in discriminant models demonstrated differences in both types of matrices when the two feeding regimes were compared. The development of this methodology could extend its use not only in dairy systems of goats but also in other animal species and systems.