Essays about: "egg enrichment"

Found 5 essays containing the words egg enrichment.

  1. 1. Analysis of fatty acids in egg yolks of various production systems

    University essay from SLU/Department of Molecular Sciences

    Author : Jonatan Nyberg; [2017]
    Keywords : egg; fatty acid; omega-3; egg enrichment; docosahexaenoic acid; omega-6 omega-3 ratio; organic; free range; DHA;

    Abstract : OBJECTIVES: The objective of this study was to compare fatty acid composition of different eggs. Seven kinds of eggs from three companies were taken, including organic, free range, enriched and “farmer” eggs. RESULTS: In total 15 fatty acids were identified. READ MORE

  2. 2. The impact of food enrichment on the behaviour of turtles in captivity : An observational study of McCord’s snake-necked turtle (Chelodina mccordi) and Vietnamese pond turtle (Mauremys annamensis)

    University essay from SLU/Dept. of Animal Environment and Health

    Author : Erika Johansson; [2017]
    Keywords : Chelodina mccordi; food enrichment; Mauremys annamensis; reptile behaviour; turtle; welfare; foderberikning; beteende hos reptiler; sköldpadda; välfärd;

    Abstract : McCord’s snake-necked turtle (Chelodina mccordi) and Vietnamese pond turtle (Mauremys annamensis) are two critically endangered species of fresh water turtles originating from Asia. The aim of this study was to evaluate how the two species of aquatic turtles responded to food enrichment, if feed enrichment could reduce the stereotypic behaviour displayed by the McCord’s Snake-necked turtles and if behavioural signs associated to good welfare increased in response to food enrichment. READ MORE

  3. 3. Placing of enrichment and its impact on the distribution of hens in the outdoor run

    University essay from SLU/Dept. of Animal Environment and Health

    Author : Mathilda Hedborg; [2016]
    Keywords : poultry; hens; free range; enrichment; shelters;

    Abstract : The majority of the organic egg producers in Sweden are certified according to the rules of the organisation KRAV, who have stricter directions than the legislation of the European commission. In 2013, KRAV decided to clarify the rule on use of the outdoor area to ensure a maximum utilization of the offered area. READ MORE

  4. 4. Effect of insoluble fibre enrichment on egg quality in laying hens

    University essay from SLU/Dept. of Animal Nutrition and Management

    Author : Frida Johansson; [2014]
    Keywords : egg quality; shell quality; insoluble fibre; laying hen; litter consumption;

    Abstract : Studien var en del i ett större projekt som syftade till att undersöka hur värphöns påverkas beteendemässigt och nutritionellt av ökad konsumtion av olöslig fiber. I det nu aktuella projektet undersöktes hur ökat intag av olöslig fiber påverkar äggkvalitén. READ MORE

  5. 5. Effects of food quantity, dietary fatty acids and temperature on fitness of Daphnia magna : a factorial experiment with Scenedesmus acutus and EPA amendments

    University essay from SLU/Dept. of Aquatic Sciences and Assessment

    Author : Bernadette Pree; [2011]
    Keywords : Daphnia magna; temperature; Scenedesmus acutus; food quality; dietary fatty acid amendment; food concentration; pelagic food web;

    Abstract : The performance of zooplankton has a major impact on the efficiency in trophic transfer in pelagic food webs and is therefore examined in this study. I investigated the effect of different food quantity and food quality, as measured by omega-3 fatty acid (ω3-FA) content on survival, somatic growth and reproduction of Daphnia magna at high and low temperatures in laboratory growth experiments. READ MORE