{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,2]],"date-time":"2026-09-02T00:07:31Z","timestamp":1788307651267,"version":"build-2803163510"},"reference-count":46,"publisher":"MDPI AG","issue":"11","license":[{"start":{"date-parts":[[2021,11,13]],"date-time":"2021-11-13T00:00:00Z","timestamp":1636761600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"This work was supported by Institute of Animal Sciences, Warsaw University of Life Sciences \u2013 SGGW (statutory funds).","award":["n\/a"],"award-info":[{"award-number":["n\/a"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Animals"],"abstract":"<jats:p>The objective of this study was to determine the influence of phytogenic product-supplemented, organic acid-supplemented, and prebiotic-supplemented diets on the production results, antioxidative status, and selected welfare indices in broiler chickens. A total of 1155 one-day old male Ross 308 broilers were randomly assigned to one of three treatment groups: Group C, no additives; Group A, supplemented with phytogenic supplement (50% hop); and Group P, supplemented with 65% organic acids and their salts, and 30% prebiotic complex. Health condition and production results were monitored during the entire experiment. After 42 days, 10 birds from each dietary treatment group were selected for blood sampling and slaughter analysis. The results obtained revealed that over the whole feeding period, none of the investigated additives significantly affected broiler performance indices. However, feeding the birds treatment-A increased the relative abundance of Bifidobacterium in caecal digesta compared to the other treatments, whereas feeding treatment-P increased the relative abundance of Lactobacillus compared to the control treatment. Overall, treatment-A was more effective at increasing relative abundance of Clostridia in birds at 42 days of age than treatment-P. Finally, there were no changes in blood levels of antioxidant indices or liver function indicators.<\/jats:p>","DOI":"10.3390\/ani11113249","type":"journal-article","created":{"date-parts":[[2021,11,14]],"date-time":"2021-11-14T20:48:36Z","timestamp":1636922916000},"page":"3249","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":14,"title":["Phytogenic Ingredients from Hops and Organic Acids Improve Selected Indices of Welfare, Health Status Markers, and Bacteria Composition in the Caeca of Broiler Chickens"],"prefix":"10.3390","volume":"11","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-8093-2822","authenticated-orcid":false,"given":"Monika","family":"Michalczuk","sequence":"first","affiliation":[{"name":"Department of Animal Breeding, Institute of Animal Sciences, Warsaw University of Life Sciences, Ciszewskiego 8, 02-786 Warsaw, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Elisabeth","family":"Holl","sequence":"additional","affiliation":[{"name":"Dr. Eckel Animal Nutrition GmbH & Co. KG, Im Stiefelfeld 10, D-56651 Niederzissen, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Anne","family":"M\u00f6ddel","sequence":"additional","affiliation":[{"name":"Dr. Eckel Animal Nutrition GmbH & Co. KG, Im Stiefelfeld 10, D-56651 Niederzissen, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5546-9891","authenticated-orcid":false,"given":"Artur","family":"J\u00f3\u017awik","sequence":"additional","affiliation":[{"name":"Institute of Genetics and Animal Biotechnology, Polish Academy of Science, Jastrz\u0119biec, Post\u0119pu 36A, 05-552 Magdalenka, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jan","family":"Sl\u00f3sarz","sequence":"additional","affiliation":[{"name":"Department of Animal Breeding, Institute of Animal Sciences, Warsaw University of Life Sciences, Ciszewskiego 8, 02-786 Warsaw, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7236-0203","authenticated-orcid":false,"given":"Damian","family":"Bie\u0144","sequence":"additional","affiliation":[{"name":"Department of Animal Breeding, Institute of Animal Sciences, Warsaw University of Life Sciences, Ciszewskiego 8, 02-786 Warsaw, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Katarzyna","family":"Z\u0105bek","sequence":"additional","affiliation":[{"name":"Department of Animal Nutrition, The Kielanowski Institute of Animal Physiology and Nutrition, Polish Academy of Sciences, Instytucka 3, 05-110 Jab\u0142onna, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2054-5636","authenticated-orcid":false,"given":"Pawe\u0142","family":"Konieczka","sequence":"additional","affiliation":[{"name":"Department of Animal Nutrition, The Kielanowski Institute of Animal Physiology and Nutrition, Polish Academy of Sciences, Instytucka 3, 05-110 Jab\u0142onna, Poland"},{"name":"Department of Poultry Science, University of Warmia and Mazury in Olsztyn, 10-719 Olsztyn, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2021,11,13]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Krauze, M., Cendrowska-Pinkosz, M., Matusevi\u0109ius, P., St\u0119pniowska, A., Jurczak, P., and Ognik, K. 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