Sökning: "jungle fowl"

Visar resultat 1 - 5 av 7 uppsatser innehållade orden jungle fowl.

  1. 1. Spatial resolution threshold in layers and red jungle fowls : are there differences due to light intensity or light spectra?

    Master-uppsats, SLU/Dept. of Animal Environment and Health

    Författare :Pauline Annerstedt; [2018]
    Nyckelord :spatial resolution threshold; layer; red jungle fowls; visual acuity;

    Sammanfattning : The domestic fowl (Gallus gallus domesticus) originates from the forests in South-east Asia. It may be correct to assume that the visual system of the domestic fowl is still adapted to light that is filtered through the green forest canopy. LÄS MER

  3. 2. Fine mapping of autoimmune diseases in chicken

    Master-uppsats, SLU/Dept. of Animal Breeding and Genetics

    Författare :Utlwanang Mosupiemang; [2012]
    Nyckelord :Chicken; autoimmune disease; animal models; systemic sclerosis; vitiligo;

    Sammanfattning : Autoimmune diseases arise due to tolerance breakdown or failure of the body's immune system to establish tolerance leading to the body failing to recognize its own tissues and organs as self. Systemic sclerosis is a disease of the connective tissue characterized by immunological abnormalities and increased deposition of extracellular matrix proteins in the skin. LÄS MER

  4. 3. Effects of stress on fowl and their need for social support

    Kandidat-uppsats, Biologi; Tekniska högskolan

    Författare :Sofia Nilsson; [2012]
    Nyckelord :White leghorn; Red jungle fowl; Stress; Social Support; Domestication;

    Sammanfattning : Domestication has taken place over thousands of years and during that time we have bred animals on different traits. The red jungle fowl is the ancestor to all domesticated chicks, including the white leghorn which is used in egg production. LÄS MER

  5. 4. Vad skiljer domesticerade värphöns från de röda djungelhönsen (Gallus gallus) i återhämtningsprocessen efter en standardiserad stressupplevelse? : En studie med ett didaktiskt perspektiv

    Uppsats för yrkesexamina på avancerad nivå, Institutionen för fysik, kemi och biologi

    Författare :Viktoria Elebring; [2011]
    Nyckelord :beteende; domesticering; etologi; grundskolans senare år; röda djungelhöns; stress; White Leghorn; återhämtning;

    Sammanfattning : Tidigare studier har visat att domesticerade höns påvisar en lägre nivå av rädsla jämfört med förfadern, de röda djungelhönsen. I denna studie testades 18 domesticerade White Leghorn (WL) och 18 röda djungelhöns (RJF). Målet med studien var att studera återhämtningen för de båda raserna vid en standardiserad stressupplevelse. LÄS MER

  7. 5. Detecting Major Genes Controlling Robustness of Chicken Body Weight Using Double Generalized Linear Models

    Master-uppsats, Statistik

    Författare :Liming Zhang; Yang Han; [2010]
    Nyckelord :variance-controlling genes; quantitative trait loci; double generalized linear models.;

    Sammanfattning : Detecting both the majors genes that control the phenotypic mean and those controlling phenotypic variance has been raised in quantitative trait loci analysis. In order to mapping both kinds of genes, we applied the idea of the classic Haley-Knott regression to double generalized linear models. LÄS MER