{"id":38661,"date":"2021-06-08T13:36:01","date_gmt":"2021-06-08T13:36:01","guid":{"rendered":"https:\/\/matis.is\/?p=38661"},"modified":"2021-06-08T13:36:02","modified_gmt":"2021-06-08T13:36:02","slug":"protein-requirements-of-atlantic-cod-gadus-morhua","status":"publish","type":"post","link":"https:\/\/matis.is\/en\/greinar\/protein-requirements-of-atlantic-cod-gadus-morhua\/","title":{"rendered":"Protein requirements of Atlantic cod, Gadus morhua"},"content":{"rendered":"<p>Three feeding trials were conducted to estimate the minimum protein requirements for maximum growth of Atlantic cod (initial size 37\u2013600 g). The diets in each trial were near iso-energetic and contained 47\u201364% crude protein (CP) in dry matter for small fish while diets for larger fish contained 36\u201357% CP. There was no significant difference in the final weight of small fish (90\u2013130 g) fed different levels of CP. However, the specific growth rate (SGR) of fish fed 59% and 64% CP (0.9% day<sup>\u22121<\/sup>) was significantly higher than that of fish fed either 47% or 48% CP (0.5\u20130.7% day<sup>\u22121<\/sup>). The hepato-somatic index (HSI) increased progressively with decreased CP and the feed conversion ratio (FCR) was negatively correlated with CP of the diets. In two trials with larger fish, CP did not significantly affect mean final weight (750\u2013900 g), SGR or FCR. As for the smaller fish, the HSI was negatively correlated with CP and in one of the experiments, the feed intake was also negatively correlated with CP. The feed efficiency tended to be reduced. The results suggest that the protein requirement for maximum growth in Atlantic cod is size dependent: for 40\u2013107 g fish, the minimum CP is 47\u201352% and for larger fish (400\u2013900 g) it is 36% or lower.<\/p>\n\n\n\n<p><strong><a href=\"https:\/\/onlinelibrary.wiley.com\/doi\/full\/10.1111\/j.1365-2109.2009.02439.x\">Link to article<\/a><\/strong><\/p>","protected":false},"excerpt":{"rendered":"<p>Three feeding trials were conducted to estimate the minimum protein requirements for maximum growth of Atlantic cod (initial size 37\u2013600\u2003g). [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"template-greinar.php","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":[2011],"tags":[],"class_list":["post-38661","post","type-post","status-publish","format-standard","hentry","category-greinar"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Protein requirements of Atlantic cod, Gadus morhua - 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\/greinar\/protein-requirements-of-atlantic-cod-gadus-morhua\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Protein requirements of Atlantic cod, Gadus morhua - Mat\u00eds\" \/>\n<meta property=\"og:description\" content=\"Three feeding trials were conducted to estimate the minimum protein requirements for maximum growth of Atlantic cod (initial size 37\u2013600\u2003g). [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/matis.is\/en\/greinar\/protein-requirements-of-atlantic-cod-gadus-morhua\/\" \/>\n<meta property=\"og:site_name\" content=\"Mat\u00eds\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/matisiceland\" \/>\n<meta property=\"article:published_time\" content=\"2021-06-08T13:36:01+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2021-06-08T13:36:02+00:00\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@matisiceland\" \/>\n<meta name=\"twitter:site\" content=\"@matisiceland\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"Estimated reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/matis.is\\\/greinar\\\/protein-requirements-of-atlantic-cod-gadus-morhua\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/matis.is\\\/greinar\\\/protein-requirements-of-atlantic-cod-gadus-morhua\\\/\"},\"author\":{\"name\":\"admin\",\"@id\":\"https:\\\/\\\/matis.is\\\/#\\\/schema\\\/person\\\/33b92c850c915c93e67f291e3381a49a\"},\"headline\":\"Protein requirements of Atlantic cod, Gadus morhua\",\"datePublished\":\"2021-06-08T13:36:01+00:00\",\"dateModified\":\"2021-06-08T13:36:02+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/matis.is\\\/greinar\\\/protein-requirements-of-atlantic-cod-gadus-morhua\\\/\"},\"wordCount\":205,\"publisher\":{\"@id\":\"https:\\\/\\\/matis.is\\\/#organization\"},\"articleSection\":[\"Greinar\"],\"inLanguage\":\"en-GB\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/matis.is\\\/greinar\\\/protein-requirements-of-atlantic-cod-gadus-morhua\\\/\",\"url\":\"https:\\\/\\\/matis.is\\\/greinar\\\/protein-requirements-of-atlantic-cod-gadus-morhua\\\/\",\"name\":\"Protein requirements of Atlantic cod, Gadus morhua - Mat\u00eds\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/matis.is\\\/#website\"},\"datePublished\":\"2021-06-08T13:36:01+00:00\",\"dateModified\":\"2021-06-08T13:36:02+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/matis.is\\\/greinar\\\/protein-requirements-of-atlantic-cod-gadus-morhua\\\/#breadcrumb\"},\"inLanguage\":\"en-GB\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/matis.is\\\/greinar\\\/protein-requirements-of-atlantic-cod-gadus-morhua\\\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/matis.is\\\/greinar\\\/protein-requirements-of-atlantic-cod-gadus-morhua\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/matis.is\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Protein requirements of Atlantic cod, Gadus morhua\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/matis.is\\\/#website\",\"url\":\"https:\\\/\\\/matis.is\\\/\",\"name\":\"Mat\u00eds\",\"description\":\"Ver\u00f0m\u00e6task\u00f6pun, matv\u00e6la\u00f6ryggi og l\u00fd\u00f0heilsa\",\"publisher\":{\"@id\":\"https:\\\/\\\/matis.is\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/matis.is\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-GB\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/matis.is\\\/#organization\",\"name\":\"Mat\u00eds ohf.\",\"url\":\"https:\\\/\\\/matis.is\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-GB\",\"@id\":\"https:\\\/\\\/matis.is\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/matis.is\\\/wp-content\\\/uploads\\\/2021\\\/02\\\/matis_logo_blatthvitt.png\",\"contentUrl\":\"https:\\\/\\\/matis.is\\\/wp-content\\\/uploads\\\/2021\\\/02\\\/matis_logo_blatthvitt.png\",\"width\":1507,\"height\":1507,\"caption\":\"Mat\u00eds ohf.\"},\"image\":{\"@id\":\"https:\\\/\\\/matis.is\\\/#\\\/schema\\\/logo\\\/image\\\/\"},\"sameAs\":[\"https:\\\/\\\/www.facebook.com\\\/matisiceland\",\"https:\\\/\\\/x.com\\\/matisiceland\",\"https:\\\/\\\/www.instagram.com\\\/matisiceland\\\/\",\"https:\\\/\\\/www.linkedin.com\\\/matisiceland\\\/\",\"https:\\\/\\\/www.youtube.com\\\/channel\\\/UCY-frt3uTqgVZW-DLjoo5bA\"]},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/matis.is\\\/#\\\/schema\\\/person\\\/33b92c850c915c93e67f291e3381a49a\",\"name\":\"admin\",\"sameAs\":[\"https:\\\/\\\/matis.mareframe.eu\"],\"url\":\"https:\\\/\\\/matis.is\\\/en\\\/author\\\/thormodurmatis-is\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Protein requirements of Atlantic cod, Gadus morhua - Mat\u00eds","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/matis.is\/en\/greinar\/protein-requirements-of-atlantic-cod-gadus-morhua\/","og_locale":"en_GB","og_type":"article","og_title":"Protein requirements of Atlantic cod, Gadus morhua - Mat\u00eds","og_description":"Three feeding trials were conducted to estimate the minimum protein requirements for maximum growth of Atlantic cod (initial size 37\u2013600\u2003g). [&hellip;]","og_url":"https:\/\/matis.is\/en\/greinar\/protein-requirements-of-atlantic-cod-gadus-morhua\/","og_site_name":"Mat\u00eds","article_publisher":"https:\/\/www.facebook.com\/matisiceland","article_published_time":"2021-06-08T13:36:01+00:00","article_modified_time":"2021-06-08T13:36:02+00:00","author":"admin","twitter_card":"summary_large_image","twitter_creator":"@matisiceland","twitter_site":"@matisiceland","twitter_misc":{"Written by":"admin","Estimated reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/matis.is\/greinar\/protein-requirements-of-atlantic-cod-gadus-morhua\/#article","isPartOf":{"@id":"https:\/\/matis.is\/greinar\/protein-requirements-of-atlantic-cod-gadus-morhua\/"},"author":{"name":"admin","@id":"https:\/\/matis.is\/#\/schema\/person\/33b92c850c915c93e67f291e3381a49a"},"headline":"Protein requirements of Atlantic cod, Gadus morhua","datePublished":"2021-06-08T13:36:01+00:00","dateModified":"2021-06-08T13:36:02+00:00","mainEntityOfPage":{"@id":"https:\/\/matis.is\/greinar\/protein-requirements-of-atlantic-cod-gadus-morhua\/"},"wordCount":205,"publisher":{"@id":"https:\/\/matis.is\/#organization"},"articleSection":["Greinar"],"inLanguage":"en-GB"},{"@type":"WebPage","@id":"https:\/\/matis.is\/greinar\/protein-requirements-of-atlantic-cod-gadus-morhua\/","url":"https:\/\/matis.is\/greinar\/protein-requirements-of-atlantic-cod-gadus-morhua\/","name":"Protein requirements of Atlantic cod, Gadus morhua - Mat\u00eds","isPartOf":{"@id":"https:\/\/matis.is\/#website"},"datePublished":"2021-06-08T13:36:01+00:00","dateModified":"2021-06-08T13:36:02+00:00","breadcrumb":{"@id":"https:\/\/matis.is\/greinar\/protein-requirements-of-atlantic-cod-gadus-morhua\/#breadcrumb"},"inLanguage":"en-GB","potentialAction":[{"@type":"ReadAction","target":["https:\/\/matis.is\/greinar\/protein-requirements-of-atlantic-cod-gadus-morhua\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/matis.is\/greinar\/protein-requirements-of-atlantic-cod-gadus-morhua\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/matis.is\/"},{"@type":"ListItem","position":2,"name":"Protein requirements of Atlantic cod, Gadus morhua"}]},{"@type":"WebSite","@id":"https:\/\/matis.is\/#website","url":"https:\/\/matis.is\/","name":"Mat\u00eds","description":"Value creation, food security and public health","publisher":{"@id":"https:\/\/matis.is\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/matis.is\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-GB"},{"@type":"Organization","@id":"https:\/\/matis.is\/#organization","name":"Mat\u00eds ohf.","url":"https:\/\/matis.is\/","logo":{"@type":"ImageObject","inLanguage":"en-GB","@id":"https:\/\/matis.is\/#\/schema\/logo\/image\/","url":"https:\/\/matis.is\/wp-content\/uploads\/2021\/02\/matis_logo_blatthvitt.png","contentUrl":"https:\/\/matis.is\/wp-content\/uploads\/2021\/02\/matis_logo_blatthvitt.png","width":1507,"height":1507,"caption":"Mat\u00eds ohf."},"image":{"@id":"https:\/\/matis.is\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/matisiceland","https:\/\/x.com\/matisiceland","https:\/\/www.instagram.com\/matisiceland\/","https:\/\/www.linkedin.com\/matisiceland\/","https:\/\/www.youtube.com\/channel\/UCY-frt3uTqgVZW-DLjoo5bA"]},{"@type":"Person","@id":"https:\/\/matis.is\/#\/schema\/person\/33b92c850c915c93e67f291e3381a49a","name":"admin","sameAs":["https:\/\/matis.mareframe.eu"],"url":"https:\/\/matis.is\/en\/author\/thormodurmatis-is\/"}]}},"spectra_custom_meta":{"_edit_lock":["1623159364:5"],"_wp_page_template":["template-greinar.php"],"_edit_last":["5"],"_yoast_wpseo_content_score":["30"],"_yoast_wpseo_estimated-reading-time-minutes":["1"],"authors":["J\u00f3n \u00c1rnason,\u00a0Rannveig Bj\u00f6rnsd\u00f3ttir, Ing\u00f3lfur Arnarsson, GS Arnadottir and Helgi Thorarensen"],"_authors":["field_60a287218a0ab"],"publication":["Aquaculture Research"],"_publication":["field_60a287738a0ac"],"edition":["41"],"_edition":["field_60a287918a0ad"],"page":["385-393"],"_page":["field_60a2879f8a0ae"],"year":["2010"],"_year":["field_60a287a58a0af"],"link":[""],"_link":["field_60a287aa8a0b0"],"orcidid":[""],"_orcidid":["field_60a287c28a0b1"],"matis_tengilidur":["a:1:{i:0;s:5:\"28194\";}"],"_matis_tengilidur":["field_60a65b61f4532"],"tengilidur":[""],"_tengilidur":["field_5ef905e0538b2"],"_yoast_wpseo_primary_category":["2011"],"wpmm_postgrid_views":["471"],"_uag_css_file_name":["uag-css-38661.css"],"_uag_page_assets":["a:9:{s:3:\"css\";s:263:\".uag-blocks-common-selector{z-index:var(--z-index-desktop) !important}@media (max-width: 976px){.uag-blocks-common-selector{z-index:var(--z-index-tablet) !important}}@media (max-width: 767px){.uag-blocks-common-selector{z-index:var(--z-index-mobile) !important}}\n\";s:2:\"js\";s:0:\"\";s:18:\"current_block_list\";a:6:{i:0;s:14:\"core\/paragraph\";i:1;s:12:\"core\/buttons\";i:2;s:11:\"core\/button\";i:3;s:12:\"core\/heading\";i:4;s:12:\"core\/columns\";i:5;s:11:\"core\/column\";}s:8:\"uag_flag\";b:0;s:11:\"uag_version\";s:10:\"1777300790\";s:6:\"gfonts\";a:0:{}s:10:\"gfonts_url\";s:0:\"\";s:12:\"gfonts_files\";a:0:{}s:14:\"uag_faq_layout\";b:0;}"]},"uagb_featured_image_src":{"full":false,"thumbnail":false,"medium":false,"medium_large":false,"large":false,"1536x1536":false,"2048x2048":false,"trp-custom-language-flag":false},"uagb_author_info":{"display_name":"admin","author_link":"https:\/\/matis.is\/en\/author\/thormodurmatis-is\/"},"uagb_comment_info":0,"uagb_excerpt":"Three feeding trials were conducted to estimate the minimum protein requirements for maximum growth of Atlantic cod (initial size 37\u2013600\u2003g). [&hellip;]","_links":{"self":[{"href":"https:\/\/matis.is\/en\/wp-json\/wp\/v2\/posts\/38661","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/matis.is\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/matis.is\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/matis.is\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/matis.is\/en\/wp-json\/wp\/v2\/comments?post=38661"}],"version-history":[{"count":2,"href":"https:\/\/matis.is\/en\/wp-json\/wp\/v2\/posts\/38661\/revisions"}],"predecessor-version":[{"id":38663,"href":"https:\/\/matis.is\/en\/wp-json\/wp\/v2\/posts\/38661\/revisions\/38663"}],"wp:attachment":[{"href":"https:\/\/matis.is\/en\/wp-json\/wp\/v2\/media?parent=38661"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/matis.is\/en\/wp-json\/wp\/v2\/categories?post=38661"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/matis.is\/en\/wp-json\/wp\/v2\/tags?post=38661"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}