{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,1]],"date-time":"2026-09-01T05:17:19Z","timestamp":1788239839869,"version":"build-2803163510"},"reference-count":54,"publisher":"MDPI AG","issue":"17","license":[{"start":{"date-parts":[[2026,8,30]],"date-time":"2026-08-30T00:00:00Z","timestamp":1788048000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"DIUFRO","award":["DI 24-0004"],"award-info":[{"award-number":["DI 24-0004"]}]},{"DOI":"10.13039\/501100020884","name":"Agencia Nacional de Investigaci\u00f3n y Desarrollo","doi-asserted-by":"crossref","award":["3260421"],"award-info":[{"award-number":["3260421"]}],"id":[{"id":"10.13039\/501100020884","id-type":"DOI","asserted-by":"crossref"}]},{"award":["3260421"],"award-info":[{"award-number":["3260421"]}],"id":[{"id":"https:\/\/ror.org\/02ap3w078","id-type":"ROR","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Plants"],"abstract":"<jats:p>Rubus ulmifolius Schott is an invasive bramble whose recurrently removed biomass may contain nutritionally useful leaves and young shoots. This narrative and translational review evaluates whether that biomass can be investigated as a candidate sheep supplement without encouraging its spread. Species-specific evidence shows marked seasonal and fraction-dependent variation in crude protein, fiber, lignin and tannin activity, whereas controlled sheep-feeding data remain scarce. Goat browsing observations and general studies of tannin-rich feeds support only indirect hypotheses regarding intake, rumen nitrogen metabolism, methane, microbiome composition, oxidative status, product quality and parasite resilience. Key constraints include mature-cane lignification, thorns and selective refusal, uncertain dose\u2013response, processing effects, contamination and propagule biosecurity. We therefore define functional browse as an unvalidated, outcome-dependent designation and propose a staged evidence pathway: local biomass mapping and no-spread harvest; fraction-specific chemical and phytochemical characterization; in vitro digestibility, polyethylene-glycol and methane screening; short-term sheep acceptability and safety; controlled dose\u2013response trials; targeted mechanistic studies; and farm-scale techno-economic and ecological validation. Current evidence supports R. ulmifolius as a candidate for structured evaluation, not as a proven practical feed. Any future use should be local, traceable, fruit-free or seed-inactivated, and contingent on maintained intake, digestibility, welfare and performance.<\/jats:p>","DOI":"10.3390\/plants15172656","type":"journal-article","created":{"date-parts":[[2026,8,31]],"date-time":"2026-08-31T02:08:58Z","timestamp":1788142138000},"page":"2656","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["From Invasive Bramble to Functional Browse: A Translational Review of Rubus ulmifolius Schott for Sheep Nutrition"],"prefix":"10.3390","volume":"15","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-3470-0270","authenticated-orcid":false,"given":"David","family":"Cancino-Baier","sequence":"first","affiliation":[{"name":"Facultad de Ciencias Agropecuarias y Medioambiente, Departamento de Biotecnolog\u00eda y Ciencias Veterinarias, Universidad de La Frontera, Temuco 4811230, Chile"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5353-3084","authenticated-orcid":false,"given":"John","family":"Qui\u00f1ones-Diaz","sequence":"additional","affiliation":[{"name":"Facultad de Ciencias Agropecuarias y Medioambiente, Departamento de Biotecnolog\u00eda y Ciencias Veterinarias, Universidad de La Frontera, Temuco 4811230, Chile"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6209-6728","authenticated-orcid":false,"given":"Rommy","family":"Diaz","sequence":"additional","affiliation":[{"name":"Facultad de Ciencias Agropecuarias y Medioambiente, Departamento de Biotecnolog\u00eda y Ciencias Veterinarias, Universidad de La Frontera, Temuco 4811230, Chile"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9147-2358","authenticated-orcid":false,"given":"Erwin","family":"Mu\u00f1oz-Acu\u00f1a","sequence":"additional","affiliation":[{"name":"Laboratorio de Reproducci\u00f3n, Centro de Excelencia en Biotecnolog\u00eda de la Reproducci\u00f3n (CEBIOR), Universidad de La Frontera, Temuco 4811230, Chile"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8321-604X","authenticated-orcid":false,"given":"Nestor Sep\u00falveda","family":"Becker","sequence":"additional","affiliation":[{"name":"Facultad de Ciencias Agropecuarias y Medioambiente, Departamento de Biotecnolog\u00eda y Ciencias Veterinarias, Universidad de La Frontera, Temuco 4811230, Chile"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4093-7415","authenticated-orcid":false,"given":"Erwin A.","family":"Paz","sequence":"additional","affiliation":[{"name":"The Marshall Centre for Infectious Diseases Research and Training, University of Western Australia, Perth 6009, Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alex","family":"Mu\u00f1oz-Salvo","sequence":"additional","affiliation":[{"name":"Programa de Doctorado en Ciencias Agroalimentarias y Medioambiente, Universidad de La Frontera, Temuco 4780000, Chile"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2026,8,30]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1511","DOI":"10.1111\/brv.12627","article-title":"Scientists\u2019 Warning on Invasive Alien Species","volume":"95","author":"Hulme","year":"2020","journal-title":"Biol. 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