{"id":114369,"date":"2018-03-11T10:42:20","date_gmt":"2018-03-11T10:42:20","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/desarrollo-de-piensos-formulados-y-requerimientos-nutritivos-del-pulpo-de-roca-octopus-vulgaris\/"},"modified":"2018-03-11T10:42:20","modified_gmt":"2018-03-11T10:42:20","slug":"desarrollo-de-piensos-formulados-y-requerimientos-nutritivos-del-pulpo-de-roca-octopus-vulgaris","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/fisiologia-animal\/desarrollo-de-piensos-formulados-y-requerimientos-nutritivos-del-pulpo-de-roca-octopus-vulgaris\/","title":{"rendered":"Desarrollo de piensos formulados y requerimientos nutritivos del pulpo de roca (octopus vulgaris)"},"content":{"rendered":"

Tesis doctoral de Mar\u00eda Piedad Sanchez Morillo-velarde <\/strong><\/h2>\n

Objetivos: – analizar las variaciones en la composici\u00f3n lip\u00eddica y el contenido de carbohidratos del m\u00fasculo y de la gl\u00e1ndula digestiva de o. Vulgaris durante un periodo corto de ayuno, como aproximaci\u00f3n a sus requerimientos nutricionales. – conocer la aceptabilidad y crecimiento de o. Vulgaris alimentado con dietas formuladas con diferentes ingredientes de origen vegetal y animal. – elaborar piensos formulados en base a los resultados previos de aceptabilidad y comprobar su rendimiento en o. Vulgaris mediante ensayos de engorde y digestibilidad. – estimar los requerimientos lip\u00eddicos de o. Vulgaris despu\u00e9s de suministrar dietas con distinto contenido en aceite de pescado, comprobando los cambios que se producen en el crecimiento, aprovechamiento nutritivo y digestibilidad de la dieta. – determinar la composici\u00f3n nutricional de o. Vulgaris despu\u00e9s de suministrar dietas formuladas con distinto contenido en aceite de pescado. – estudiar los cambios que se producen en el crecimiento, composici\u00f3n nutricional, aprovechamiento nutritivo y digestibilidad de la dieta de o. Vulgaris despu\u00e9s de suministrar dietas formuladas que incluyen carbohidratos simples o complejos. metodolog\u00eda: -ensayos de ayuno: \tse configuraron 5 grupos experimentales (n = 4). Cuatro grupos se sacrificaron a los d\u00edas 1, 2, 4 y 8 despu\u00e9s de suministrar la \u00faltima comida y un grupo control fue alimentado durante los 8 d\u00edas de duraci\u00f3n del experimento. El d\u00eda del sacrificio los animales se diseccionaron separando el tejido muscular y la gl\u00e1ndula digestiva. Se determino el contenido de carbohidratos, los l\u00edpidos totales, y las clases lip\u00eddicas mediante hptlc. -aceptabilidad de ingredientes: \tse prepararon diferentes dietas formuladas con un ingrediente a testar (30%), gelatina como aglomerante (20%), y agua (50%). Los ingredientes de la dieta se mezclaron al ba\u00f1o mar\u00eda a 45\u00c2\u00bac y se dejaron enfriar a 4\u00c2\u00bac. Se utilizaron grupos experimentales de entre 6 y 8 individuos (887,0 \u00c2\u00b1 274,2 g) y se le suministr\u00f3 la dieta entre 3 y 15 d\u00edas. Se calcularon las tasas de alimentaci\u00f3n y crecimiento y el \u00edndice de eficacia alimentaria de cada dieta. -ensayos de engorde: se probaron 8 piensos diferentes elaborados con ingredientes secos o liofilizados. La duraci\u00f3n de los ensayos fue de 42 a 56 d\u00edas con ejemplares subadultos (700-800 g) mantenidos a 18\u00c2\u00bac en recirculaci\u00f3n con control de la temperatura. Se realizaron an\u00e1lisis de composici\u00f3n corporal (humedad, prote\u00edna, grasa, cenizas y meln) de los animales, las heces y en las dietas suministradas. Con los datos obtenidos se calcularon las tasas de alimentaci\u00f3n, crecimiento y digestibilidad. resultados y conclusiones \ten los animales sometidos a un periodo de ayuno se detect\u00f3 un aumento en los monoglic\u00e9ridos y el colesterol en el m\u00fasculo y se moviliz\u00f3 un promedio de 0,23 g de l\u00edpidos por d\u00eda de ayuno, principalmente \u00e1cidos grasos libres, \u00e9steres de esterol y triglic\u00e9ridos procedentes de la gl\u00e1ndula digestiva. Los l\u00edpidos contribuyeron con un 26% y los carbohidratos con un 9,9% al gasto energ\u00e9tico diario durante el ayuno en el pulpo de roca. \tlos piensos elaborados con liofilizados de pescado y la yema de huevo en polvo ofrecieron los mejores resultados, con tasas de alimentaci\u00f3n y crecimiento similares a las obtenidas para dietas naturales a base de pescado. las dietas artificiales semih\u00famedas basadas en una mezcla de ingredientes secos o liofilizados, que emplearon pota (t. Sagittatus) como ingrediente principal, mostraron buenas tasas de alimentaci\u00f3n, crecimiento, aprovechamiento nutritivo y digestibilidad, igualando o superando las dietas naturales a base de pescado. se sugieren tasas \u00f3ptimas de ingesta de l\u00edpidos para el pulpo en torno a 1 g al d\u00eda, con porcentajes apropiados de grasa para dietas formuladas entre el 13-14% en sustancia seca, aunque estos porcentajes pueden variar en futuros estudios seg\u00fan las proporciones de l\u00edpidos polares y neutros de la dieta. la dieta mejor aceptada inclu\u00eda almid\u00f3n al 5%, aunque los mejores \u00edndices de aprovechamiento nutritivo se observaron en la dieta con glucosa al 5%, destacando un ppv del 72% e \u00edndices de conversi\u00f3n inferiores a 1. aims: – to analyse the variations in lipid composition and carbohydrates content of muscle and digestive gland of o. Vulgaris during short-term starvation as approximation to its nutritional requirements. – to determine the acceptability and growth of o. Vulgaris fed formulated diets with different ingredients of vegetal and animal origin. – to prepare formulated diets based on the previous results of acceptability and check its efficiencies on o. Vulgaris by means of ongrowing and digestibility experiments. – to estimate the lipid requirements of o. Vulgaris after supplying diets with different content in fish oil, comparing the changes that take place in the growth, feed efficiency and digestibility of diet. – to determine the proximate and lipid classes composition of o. Vulgaris after supplying formulated diets with different content in fish oil. – to study the changes that produce in the growth, nutritional composition, feed efficiency and digestibility of diet in o. Vulgaris after supplying formulated diets including simple or complexes carbohydrates. methodology: -experiment of starvation: we configured 5 experimental groups (n = 4). Four groups were sacrificed 1, 2, 4 and 8 days after the last meal and a group control was fed throughout the 8 day experimental period. The day of the sacrifice the animals were dissected separating the muscular and the digestive gland. We determined the content of carbohydrates, total lipids, and lipid classes by means of hptlc. -acceptability of ingredients: we prepared different formulated diets with an ingredient to test (30%), gelatine as binder (20%) and water (50%). The ingredients of the diet were mixed at 45\u00c2\u00bac and cool to 4 \u00c2\u00bac. Each diet was tested in experimental groups of between 6 and 8 individuals (887.0 \u00c2\u00b1 274. G) during a period between 3 and 15 days. The feeding and growth rates and feed efficiency indices of each diet were calculated. -ongrowing experiments: eight different formulated diets including dry or freeze-dried ingredients were tested. The length of the experiments was of 42 to 56 days with subadults (700-800 g) kept to 18\u00c2\u00bac in a recirculation seawater system with control of the temperature. The proximate composition (moisture, protein, lipid, ash and meln) of the animals, the faeces and the diets supplied were analysed. The feeding and growth rates and digestibility were calculated with the data obtained. results and conclusions \tin the animals subjected to a starvation period detected an increase in the monoacylglycerols and the cholesterol in the muscle and 0.23 g of lipids by day of starvation, mainly free fatty acids, steryl esters and triacylglycerols were mobilized from the digestive gland. The lipids contributed with 26% and the carbohydrates with a 9.9 % of the energy costs of the animals during starvation in octopus. \tthe elaborated diet based on freeze-dried fish and egg yolk powder offered the best results, with feeding and growth rates similar to the obtained for natural diets based on fish. the semi-moist formulated diets based on a mixture of dried or freeze-dried ingredients, composed of squid (t. Sagittatus) as the main ingredient, showed good feeding and growth rates, feed efficiency and digestibility, similar or surpassing the natural diets based on fish. we propose optimal lipid feeding rates of around 1 g day-1, with appropriate percentages of lipid for formulated diets between the 13-14% dry matter, although these percentages can vary in future studies according to the proportions of polar and neutral lipids of the diet. the best acceptability was detected in the diet formulated with 5% of starch, although the best feed efficiency was observed in the diet with 5% of glucose, highlighting a productive protein value of 72% and a food conversion ratio lower than 1.<\/p>\n

 <\/p>\n

Datos acad\u00e9micos de la tesis doctoral \u00abDesarrollo de piensos formulados y requerimientos nutritivos del pulpo de roca (octopus vulgaris)<\/strong>\u00ab<\/h3>\n
    \n
  • T\u00edtulo de la tesis:<\/strong>\u00a0 Desarrollo de piensos formulados y requerimientos nutritivos del pulpo de roca (octopus vulgaris) <\/li>\n
  • Autor:<\/strong>\u00a0 Mar\u00eda Piedad Sanchez Morillo-velarde <\/li>\n
  • Universidad:<\/strong>\u00a0 Murcia<\/li>\n
  • Fecha de lectura de la tesis:<\/strong>\u00a0 26\/06\/2013<\/li>\n<\/ul>\n

     <\/p>\n

    Direcci\u00f3n y tribunal<\/h3>\n
      \n
    • Director de la tesis<\/strong>\n
        \n
      • Jes\u00fas Cerezo Valverde<\/li>\n<\/ul>\n<\/li>\n
      • Tribunal<\/strong>\n
          \n
        • Presidente del tribunal: Miguel Jover cerda <\/li>\n
        • alicia Est\u00e9vez garcia (vocal)<\/li>\n
        • Juan Andr\u00e9s Estefanell ucha (vocal)<\/li>\n
        • arnaldo aitor Marin atucha (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n

           <\/p>\n","protected":false},"excerpt":{"rendered":"

          Tesis doctoral de Mar\u00eda Piedad Sanchez Morillo-velarde Objetivos: – analizar las variaciones en la composici\u00f3n lip\u00eddica y el contenido de […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","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":"","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-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-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-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-gradient":""}},"ast-content-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-gradient":""},"tablet":{"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-gradient":""},"mobile":{"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-gradient":""}},"footnotes":""},"categories":[8552,675,8235,2048,1946],"tags":[122412,57381,62380,226733,226732,21699],"class_list":["post-114369","post","type-post","status-publish","format-standard","hentry","category-crecimiento-animal","category-fisiologia-animal","category-murcia","category-nutricion-animal","category-produccion-animal","tag-alicia-estevez-garcia","tag-arnaldo-aitor-marin-atucha","tag-jesus-cerezo-valverde","tag-juan-andres-estefanell-ucha","tag-maria-piedad-sanchez-morillo-velarde","tag-miguel-jover-cerda"],"_links":{"self":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/114369","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/comments?post=114369"}],"version-history":[{"count":0,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/114369\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/media?parent=114369"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/categories?post=114369"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/tags?post=114369"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}