{"id":36664,"date":"2020-11-30T10:14:00","date_gmt":"2020-11-30T10:14:00","guid":{"rendered":"https:\/\/matis.is\/?p=36664"},"modified":"2021-04-24T13:24:10","modified_gmt":"2021-04-24T13:24:10","slug":"colouring-of-atlantic-salmon-with-natural-pigments","status":"publish","type":"post","link":"https:\/\/matis.is\/en\/skyrsla\/colouring-of-atlantic-salmon-with-natural-pigments\/","title":{"rendered":"Coloring of Atlantic salmon with natural pigments"},"content":{"rendered":"<h4 class=\"wp-block-heading\">Different colorant and colorant inclusions in diets for Atlantic salmon and its effect on flesh color was tested. Experimental diets of similar nutritional composition, but different coloring sources and inclusions were produced in commercial fish feed mill (Laxa ltd.). Panaferd-AX colorant was compared to standard coloring regimen using Lucantin\u00ae Pink (30\/60 \/ 50mg \/ kg) as a control. Atlantic salmon were fed these diets in a growth trial in experimental tanks in saline water for 438 days.<\/h4>\n\n\n\n<p>The original plan was to test the Aquasta\u00ae colorant in addition but since its production was halted, it was only used in the first phase of the experiment. The continuing experiment compared Panaferd in different inclusion and Lucantin\u00ae Pink. Initially The recovery of the colorants in the experimental feed production was tested. Using Panaferd, the recovery of astaxanthin was only 76,9% after feed processing and extrusion compared to 100 + % recovery using Lucantin. Therefore the experimental diets were added plus 30% colourantsto ensure astaxanthin level according to feed analyzes.<br><br>To adjust planned coloring consumption the feeding was mixed with unpigmented basal diet. The growth, feed intake and feed conversion were similar between groups, and no mortalities were related to treatments during the experimental period.<br><br>The flesh color was measured by DSM Salmofan\u00ae, Konica Minolta CR-400 Chroma Meter and by chemical analyzes of astaxanthin and sum of carotenoids. Only small differences were found in visual filet pigmentation, measured by Salmofan and Konica Minolta Chromo Meter, between the different coloring regimes. The fillet color was considered acceptable in all treatment groups. The correlation between chemically analyzed content of carotenoids, including astaxanthin, and visual color score of the filets was poor.<\/p>\n\n\n\n<p>In conclusion: all tested regimes and carotenoid content in the diets for Atlantic salmon resulted in acceptable fillet color.<\/p>","protected":false},"excerpt":{"rendered":"<p>Different colourant and colourant inclusions in diets for Atlantic salmon and its effect on flesh colour was tested. Experimental diets [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[15],"tags":[],"class_list":["post-36664","post","type-post","status-publish","format-standard","hentry","category-skyrsla"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Colouring of Atlantic salmon with natural pigments - Mat\u00eds<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/matis.is\/en\/skyrsla\/colouring-of-atlantic-salmon-with-natural-pigments\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Colouring of Atlantic salmon with natural pigments - Mat\u00eds\" \/>\n<meta property=\"og:description\" content=\"Different colourant and colourant inclusions in diets for Atlantic salmon and its effect on flesh colour was tested. 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