{"id":118403,"date":"2026-09-11T21:19:02","date_gmt":"2026-09-11T19:19:02","guid":{"rendered":"https:\/\/nilu.gnist.dev\/publikasjoner\/antiparasite-treatments-reduce-humoral-immunity-and-impact-oxidative-status-in-raptor-nestlings\/"},"modified":"2026-09-11T21:19:02","modified_gmt":"2026-09-11T19:19:02","slug":"antiparasite-treatments-reduce-humoral-immunity-and-impact-oxidative-status-in-raptor-nestlings","status":"publish","type":"nva_publication","link":"https:\/\/nilu.gnist.dev\/en\/publications\/antiparasite-treatments-reduce-humoral-immunity-and-impact-oxidative-status-in-raptor-nestlings\/","title":{"rendered":"Antiparasite treatments reduce humoral immunity and impact oxidative status in raptor nestlings"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Parasites are natural stressors that may have multiple negative effects on their<br \/>\nhost as they usurp energy and nutrients and may lead to costly immune<br \/>\nresponses that may cause oxidative stress. At early stages, animals may be more<br \/>\nsensitive to infectious organisms because of their rapid growth and partly<br \/>\nimmature immune system. The objective of this study was to explore effects of<br \/>\nparasites by treating chicks of two raptor species (northern goshawk Accipiter<br \/>\ngentilis and white-tailed sea eagle Haliaeetus albicilla) against both endoparasites<br \/>\n(internal parasites) and ectoparasites (external parasites). Nests were either treated<br \/>\nagainst ectoparasites by spraying with pyrethrin or left unsprayed as control<br \/>\nnests. Within each nest, chicks were randomly orally treated with either an antihelminthic<br \/>\nmedication (fenbendazole) or sterile water as control treatment. We<br \/>\ninvestigated treatment effects on plasma (1) total antioxidant capacity TAC (an<br \/>\nindex of nonenzymatic circulating antioxidant defenses), (2) total oxidant status<br \/>\nTOS (a measure of plasmatic oxidants), and (3) immunoglobulin levels (a measure<br \/>\nof humoral immune function). Treatment against ectoparasites led to a<br \/>\nreduction in circulating immunoglobulin plasma levels in male chicks. TOS was<br \/>\nhigher when not receiving any parasite reduction treatment and when receiving<br \/>\nboth endo- and ectoparasitic reduction treatment compared with receiving only<br \/>\none treatment. TAC was higher in all treatment groups, when compared to<br \/>\ncontrols. Despite the relatively low sample size, this experimental study suggests<br \/>\ncomplex but similar relationships between treatment groups and oxidative status<br \/>\nand immunoglobulin levels in two raptor species.<br \/>\nCosts of parasitism, immunoecology,<br \/>\nimmunoglobulin, oxidative status.<\/p>\n","protected":false},"template":"","meta":{"_acf_changed":false,"_searchwp_excluded":"","_id":"","_status":"PUBLISHED","_sync_date":"2026-09-11 21:16:02","footnotes":""},"nva_tax_category":[1099],"class_list":["post-118403","nva_publication","type-nva_publication","status-publish","hentry","nva_tax_category-scientific-journal-publication"],"acf":[],"_links":{"self":[{"href":"https:\/\/nilu.gnist.dev\/en\/wp-json\/wp\/v2\/nva_publication\/118403","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nilu.gnist.dev\/en\/wp-json\/wp\/v2\/nva_publication"}],"about":[{"href":"https:\/\/nilu.gnist.dev\/en\/wp-json\/wp\/v2\/types\/nva_publication"}],"version-history":[{"count":0,"href":"https:\/\/nilu.gnist.dev\/en\/wp-json\/wp\/v2\/nva_publication\/118403\/revisions"}],"wp:attachment":[{"href":"https:\/\/nilu.gnist.dev\/en\/wp-json\/wp\/v2\/media?parent=118403"}],"wp:term":[{"taxonomy":"nva_tax_category","embeddable":true,"href":"https:\/\/nilu.gnist.dev\/en\/wp-json\/wp\/v2\/nva_tax_category?post=118403"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}