Sökning: "bevarande avel"

Visar resultat 1 - 5 av 6 uppsatser innehållade orden bevarande avel.

  1. 1. Analyzing Factors Influencing Reproductive Success of the Mountain Chicken : Nordens Ark Captive Breeding Program

    Kandidat-uppsats, Högskolan i Skövde/Institutionen för biovetenskap

    Författare :Chad Donaldson; [2019]
    Nyckelord :frog; frogs; mountain chicken; mountain chicken frog; leptodactylus; fallax; herpetology; amphibian; amphibians; multiple linear regression; statistical analysis; Nordens Ark; captive breeding; zoo; zoology; conservation; endangered species; grodor; groda; kycklinggroda; Nordens Ark; amfibier; zoologi; herpetologi; analys; hotade arter; bevarande; avel;

    Sammanfattning : Amphibians globally are declining with roughly a third facing extinction due primarily to threats linked to human impacts. One way in which this is being combated is by captive breeding programs. LÄS MER

  3. 2. Challenges with ex situ programmes

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

    Författare :Emelie Smith; [2016]
    Nyckelord :reproduction; breeding in captivity; zoo; young mortality; reproduction problem; mammals; reproduktion; avel I fångenskap; zoo; ungdjursdödlighet; reproduktionssvårigheter; däggdjur;

    Sammanfattning : Human activities are driving many species of wildlife towards extinction. The number of species regarded as threatened by the International Union for Conservation of Nature (IUCN) Red List of Threatened Species more than doubled between 2000-2015. This calls for future actions towards survival and recovery of endangered species. LÄS MER

  4. 3. Increasing the knowledge of Bali cattle management - the key to maintain genetic variation and improve animal welfare

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

    Författare :Ann Eriksson; [2015]
    Nyckelord :Bali cattle; Indonesia; phenotypic description; breeding management; white spotted cattle; white spotts; inbreeding; breeding; minor field study;

    Sammanfattning : In Indonesia half of the 4.5 million households that keep livestock are small scale farmers. The most important cattle breed for these farmers is the Bali cattle, which is a dual purpose animal that is well adapted to demanding conditions. LÄS MER

  5. 4. Myskoxe - bevarande i Sverige

    Kandidat-uppsats, Uppsala universitet/Institutionen för biologisk grundutbildning

    Författare :Caroline Nilsson; [2014]
    Nyckelord :myskoxe; Sverige; naturvård; bevarande;

    Sammanfattning : Myskoxen dog ut i Sverige för 40 000 år sedan men har levt i Kanada fram tills idag. 1947introducerades myskoxar till Dovrefjell i Norge och år 1971 vandrade 5 individer över tillHärjedalen i Sverige. Populationen har som mest varit uppe i 30 individer på 1980-talet menhjorden består nu av endast 8 stycken individer. LÄS MER

  7. 5. Förvildade husdjur : möjligheter och hot

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

    Författare :Stina Noréus; [2012]
    Nyckelord :förvildad; husdjur; skadedjur; genetisk resurs; beteende; anpassning; bevarande;

    Sammanfattning : Feral animal populations are distributed over many parts of the world and are often seen as a problem. Since they are a threat against other species, destroy farmlands and can spread dis-eases, they are often referred to as pests. Artificial selection has contributed to loss of genetic diversity in our domesticated animals. LÄS MER