Extra virgin olive oil: does it modify milk composition of hair sheep?

Arcos-Álvarez, D. N. ORCID: https://orcid.org/0000-0003-3780-0688, Aguilar-Urquizo, E. ORCID: https://orcid.org/0000-0003-4727-7894, Ramon-Ugalde, J., Hernández-Núñez, E. ORCID: https://orcid.org/0000-0002-7467-7538, Giácoman-Vallejos, G. ORCID: https://orcid.org/0000-0002-9792-6904, González-Sánchez, A. A., Alvarado-Lopez, C. J. ORCID: https://orcid.org/0000-0001-7442-8171, Gonzalez-Ronquillo, M. ORCID: https://orcid.org/0000-0003-3616-4157, Chay-Canul, A. J., Vargas-Bello-Pérez, E. ORCID: https://orcid.org/0000-0001-7105-5752 and Piñeiro-Vázquez, A. T. (2023) Extra virgin olive oil: does it modify milk composition of hair sheep? Agriculture, 13 (8). 1610. ISSN 2077-0472 doi: 10.3390/agriculture13081610

Abstract/Summary

The aim of this study was to determine the effect of olive oil addition on the production, chemical composition, and fatty acid profile of sheep’s milk. Twenty-four lactating ewes with a live weight of 34.6 ± 4.61 kg were used. The animals were randomly distributed into four treatments (n = 6) with dietary addition of 0%, 2%, 4%, and 6% (dry matter basis) olive oil for 45 days. Milk samples were taken every 7 days for fatty acid (FA) and chemical analyses. A decrease (p < 0.05) in dry matter and crude protein intake was observed with 4% oil inclusion. Milk production and milk components were similar between treatments. The kilograms of meat from weaned lambs linearly increased as the oil inclusion increased. Milk C4:0 to C17:0 decreased with 2% olive oil. The monounsaturated and polyunsaturated FA content in the milk increased with the oil inclusion. There was an increase in the milk’s linoleic acid, linolenic acid, and eicosapentaenoic acid content with 2% olive oil. Overall, the addition of 2% extra virgin olive oil is recommended to improve milk’s FA profile without negative effects on animal performance.

Item Type	Article
URI	https://reading-clone.eprints-hosting.org/id/eprint/113027
Identification Number/DOI	10.3390/agriculture13081610
Refereed	Yes
Divisions	Life Sciences > School of Agriculture, Policy and Development > Farm Management Unit
Publisher	MDPI AG
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