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Revista mexicana de ciencias agrícolas
versión impresa ISSN 2007-0934
Resumen
GARAY MARTINEZ, Jonathan Raúl et al. Fatty acid profile of forage shrubs in northern Mexico. Rev. Mex. Cienc. Agríc [online]. 2024, vol.15, n.1, e3617. Epub 25-Abr-2024. ISSN 2007-0934. https://doi.org/10.29312/remexca.v15i1.3617.
Conjugated linoleic acid is considered a functional food since its consumption improves people’s health. This compound is found in the milk of ruminant animals and is synthesized in the rumen and mammary gland using linoleic and α-linolenic acids as substrates, which are widely found in forage plants. Nevertheless, there is little information regarding the content of fatty acids in forages, particularly of native species. Therefore, the study aimed to evaluate the chemical composition and fatty acid profile of native forage shrubs that are consumed by goats under extensive grazing in northern Mexico in 2019. For this, forage shrubs consumed by goats were collected. The selected forages were determined: dry matter, organic matter, crude protein, neutral detergent fiber, acid detergent fiber, total lipids, and fatty acid profile. The forage shrubs consumed by the goats in the rangeland were huizache [Vachellia farnesiana (L.) Wild.], mesquite [Prosopis laevigata (Humb & Bonpl) Wild], gobernadora [Larrea tridentata (Moç. & Seseé DC)] and chaparro prieto [Vachellia constricta (Bentham Siegler & Ebinger Waif)]. Of these, mesquite (CP 148 g kg-1 DM) and chaparro prieto (CP 147 g kg-1 DM) had the best crude protein contents; likewise, mesquite had a high concentration in linoleic (14.21 g 100 g-1 total fatty acids) and α-linolenic (36.22 g 100 g-1 total fatty acids) fatty acids, so these forage shrubs can be considered in the diet of goats that aim to increase the concentration of conjugated linoleic acid in milk or meat of grazing goats.
Palabras llave : conjugated linoleic acid; functional food; ruminant nutrition.