Sökning: "captive breeding"

Visar resultat 16 - 20 av 24 uppsatser innehållade orden captive breeding.

  1. 16. The effect of rope and an activation ball on the performance of harmful social behaviors in pigs

    Kandidat-uppsats, Biologi; Tekniska högskolan

    Författare :Johan Jönsson; [2012]
    Nyckelord :pigs; stereotypies; enrichment; rope; activation-ball; exploratory; foraging; equipment-biting;

    Sammanfattning : A widespread problem in the housing of captive animals is the occurrence and development of abnormal behaviors. In the pig breeding industry the abnormal behaviors causing the biggest welfare problems are stereotypies such as tail-biting, ear-biting, equipment-biting and belly-nosing. LÄS MER

  3. 17. Reintroducing captive bred species : a community ecological perspective

    Master-uppsats, Institutionen för fysik, kemi och biologi

    Författare :Joakim Svensson; [2011]
    Nyckelord :Captive breeding; species reintroductions; species interactions; food-web; secondary extinctions; Lokta-Volterra models.;

    Sammanfattning : Throughout history species has gone extinct due to anthropogenic activities. During the last century efforts have been done to reintroduce species back into the wild. Zoos that originally were created as amusement parks for people have today a new purpose; to keep and breed species in captivity for later reintroductions in the wild. LÄS MER

  4. 18. Analysis of MHC class II and monogenic eye diseases in the Scandinavian wolf population

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

    Författare :Davida Marby; [2011]
    Nyckelord :MHC class II; DLA; PRA; PLL; Canis lupus;

    Sammanfattning : ABSTRACT. In the late 1960’s all the wolves in Scandinavia went extinct in the wild due to extensive hunting. In 1983 two new wolves immigrated and founded, together with a third immigrant in 1991, the population that exists today. LÄS MER

  5. 19. The welfare of bottlenose dolphins and killer whales in captivity

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

    Författare :Lisa Lundin; [2010]
    Nyckelord :killer whales in captivity; bottlenose dolphins in captivity; welfare;

    Sammanfattning : The aim of this paper was to investigate whether or not it is possible to keep bottlenose dolphins and killer whales in captivity while maintaining good animal welfare. Today, many zoos and aquariums claim that their primary function is to conserve species and educate people about conservation and threatened species. LÄS MER

  7. 20. Effects of the captive environment and enrichment on the daily activity of European Bison (Bison bonasus)

    Master-uppsats, Institutionen för fysik, kemi och biologi

    Författare :Erika Godoy; [2009]
    Nyckelord :Activity budget; barren enclosure; captivity; feeding enrichment; naturalistic enclosure; reintroduction; social structure; ex situ conservation;

    Sammanfattning : When breeding wild species in captivity, the animals may gradually become more adapted to captivity and therefore less suited for reintroduction which is the ultimate goal for some species. This study measured the activity budget of European bison (Bison bonasus) in six enclosures in Sweden with the aim to find out how the characteristics of the enclosures – with and without pasture - influenced the activity budget. LÄS MER