{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,9]],"date-time":"2026-10-09T01:09:07Z","timestamp":1791508147640,"version":"4.3.4"},"reference-count":80,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2026,2,24]],"date-time":"2026-02-24T00:00:00Z","timestamp":1771891200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["frontiersin.org"],"crossmark-restriction":true},"short-container-title":["Front. Vet. Sci."],"abstract":"<jats:p>\n                    Phenolic compounds from olive mill wastewater (OMWW) have a strong antioxidant capacity, so there is increasing interest in using them in feed for livestock, including pigs. This study tested the effects of dietary supplementation with a polyphenol extract from OMWW for female Landrace \u00d7 Duroc heavy finishing pigs. There were three groups: the control diet (C group), the control diet supplemented with 74\u202fppm of OMWW polyphenols (P-LOW group), and the control diet supplemented with 225\u202fppm of OMWW polyphenols (P-HIGH group). Each experimental group comprised 45 pigs (\n                    <jats:italic>n<\/jats:italic>\n                    \u202f=\u202f15\u202f\u00d7\u202f3 replicates), for a total of 135 pigs. The effects of the phenolic extract were assessed\n                    <jats:italic>in vivo<\/jats:italic>\n                    (growth performance) and postmortem (backfat thickness; pubertal status; histopathology of the liver, ovary, uterus, fat, and muscle; morphometry of the liver, ovary, and uterus; antioxidant status in the blood, muscle, and liver; effects on the quality and physicochemical characteristics of the raw meat). There were no significant differences between the treatments regarding the growth performance traits, histopathological and morphometric findings, and backfat thickness. However, there was an increase in 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activity in the liver of the P-HIGH group, alongside higher serum paraoxonase activity and ferric reducing antioxidant power. Meat quality analysis showed that cooking loss and redness (a*) decreased, while yellowness (b*) increased in the P-LOW and P-HIGH groups, indicating that OMWW polyphenols influenced the structure and water retention capacity of the meat. Additional research is required to better understand the role of dietary OMWW polyphenols in relation to the technological quality and antioxidant state of pork meat.\n                  <\/jats:p>","DOI":"10.3389\/fvets.2026.1761378","type":"journal-article","created":{"date-parts":[[2026,2,24]],"date-time":"2026-02-24T16:35:08Z","timestamp":1771950908000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":1,"title":["Effects of dietary supplementation with an olive mill wastewater phenolic extract on the growth performance, oxidative status, and meat quality traits of finishing pigs"],"prefix":"10.3389","volume":"13","author":[{"given":"Flavia","family":"Ferlisi","sequence":"first","affiliation":[{"name":"Department of Veterinary Medicine, University of Perugia","place":["Perugia, Italy"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"David","family":"Ranucci","sequence":"additional","affiliation":[{"name":"Department of Veterinary Medicine, University of Perugia","place":["Perugia, Italy"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Raffaella","family":"Branciari","sequence":"additional","affiliation":[{"name":"Department of Veterinary Medicine, University of Perugia","place":["Perugia, Italy"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Katia","family":"Cappelli","sequence":"additional","affiliation":[{"name":"Department of Veterinary Medicine, University of Perugia","place":["Perugia, Italy"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Giuseppe","family":"Giglia","sequence":"additional","affiliation":[{"name":"Department of Veterinary Medicine, University of Perugia","place":["Perugia, Italy"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Luca","family":"Mechelli","sequence":"additional","affiliation":[{"name":"Department of Veterinary Medicine, University of Perugia","place":["Perugia, Italy"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Federica","family":"Mannelli","sequence":"additional","affiliation":[{"name":"Department of Veterinary Medicine, University of Perugia","place":["Perugia, Italy"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Samanta","family":"Mecocci","sequence":"additional","affiliation":[{"name":"Department of Veterinary Medicine, University of Perugia","place":["Perugia, Italy"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gabriele","family":"Acuti","sequence":"additional","affiliation":[{"name":"Department of Veterinary Medicine, University of Perugia","place":["Perugia, Italy"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ioannis","family":"Mourtzinos","sequence":"additional","affiliation":[{"name":"Laboratory of Food Chemistry and Biochemistry, School of Agriculture, Aristotle University of Thessaloniki (AUTH)","place":["Thessaloniki, Greece"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Anastasia","family":"Kyriakoudi","sequence":"additional","affiliation":[{"name":"Laboratory of Food Chemistry and Biochemistry, School of Agriculture, Aristotle University of Thessaloniki (AUTH)","place":["Thessaloniki, Greece"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Martina","family":"Crociati","sequence":"additional","affiliation":[{"name":"Department of Agricultural Food, Environmental and Animal Sciences, University of Udine","place":["Udine, Italy"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jiayong","family":"Tang","sequence":"additional","affiliation":[{"name":"Animal Nutrition Institute, Sichuan Agricultural University","place":["Chengdu, Sichuan, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Erminio","family":"Trevisi","sequence":"additional","affiliation":[{"name":"Department of Animal Sciences, Food and Nutrition, Universit\u00e0 Cattolica del Sacro Cuore","place":["Piacenza, Italy"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Massimo","family":"Trabalza-Marinucci","sequence":"additional","affiliation":[{"name":"Department of Veterinary Medicine, University of Perugia","place":["Perugia, Italy"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1965","published-online":{"date-parts":[[2026,2,24]]},"reference":[{"key":"ref1","year":""},{"key":"ref2","doi-asserted-by":"publisher","first-page":"10932","DOI":"10.3390\/su151410932","article-title":"Thermal comfort, growth performance and welfare of olive pulp fed broilers during hot 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