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Tags: Breeding programs + Animal genetics

All Categories (1-18 of 18)

  1. Selection of Breeding Stock among Australian Purebred Dog Breeders, with Particular Emphasis on the Dam

    Contributor(s):: Veronika Czerwinski, Michelle McArthur, Bradley Smith, Philip Hynd, Susan Hazel

    Every year, thousands of purebred domestic dogs are bred by registered dog breeders. Yet, little is known about the rearing environment of these dogs, or the attitudes and priorities surrounding breeding practices of these dog breeders. The objective of this study was to explore some of the...

  2. Influence of environmental conditions and facility on faecal glucocorticoid concentrations in captive pygmy rabbits ( Brachylagus idahoensis)

    Contributor(s):: Scarlata, C. D., Elias, B. A., Godwin, J. R., Powell, R. A., Shepherdson, D., Shipley, L. A., Brown, J. L.

  3. Breeding for better welfare: genetic goals for broiler chickens and their parents

    Contributor(s):: Dawkins, M. S., Layton, R.

  4. Do dog owners perceive the clinical signs related to conformational inherited disorders as 'normal' for the breed? A potential constraint to improving canine welfare

    Contributor(s):: Packer, R. M. A., Hendricks, A., Burn, C. C.

  5. Ratings of animal personality as a tool for improving the breeding, management and welfare of zoo mammals

    Contributor(s):: Tetley, C. L., O'Hara, S. J.

  6. How to consider the value of farm animals in breeding goals. A review of current status and future challenges. (Special Issue: Animal welfare in a broad perspective. Papers from the Nordic Network of Agriculture and Food Ethics.)

    Contributor(s):: Nielsen, H. M., Olesen, I., Navrud, S., Kolstad, K., Amer, P.

    The objective of this paper is to outline challenges associated with the inclusion of welfare issues in breeding goals for farm animals and to review the currently available methodologies and discuss their potential advantages and limitations to address these challenges. The methodology for...

  7. Animal welfare: should we change housing to better accommodate the animal or change the animal to accommodate the housing?

    Contributor(s):: Cheng, Heng-Wei

    Animal welfare (well-being) can be generally defined as 'a state of harmony between the animal and its environment, characterized by optimal physical, behavioural and psychological functioning and high quality of the animal's life'. Since its inception in the early nineteenth century, through...

  8. Genetic analysis of reactivity to humans in Goettingen minipigs

    Contributor(s):: Kohn, F., Sharifi, A. R., Simianer, H.

    Goettingen minipigs are laboratory animals with an increasing demand over the last few years. At the moment, Goettingen minipigs are not selected for a low reactivity to humans and this trait is not included in the breeding programme. However, it is obvious that there is a need for genetically...

  9. Increased reproductive output in stereotypic captive Rhabdomys females: potential implications for captive breeding

    Contributor(s):: Jones, M. A., Lierop, M. van, Mason, G., Pillay, N.

    Captive animal populations can diverge considerably from populations in the wild, despite the animals not being deliberately domesticated. If the phenotypes which are of benefit in captivity are heritable, the genotypes of captive-stock can diverge swiftly and substantially from wild-stock. Using...

  10. Consistency and influence on performance of behavioural differences in Large White and Landrace purebred pigs

    Contributor(s):: Fernandez de Sevilla, X., Casellas, J., Tibau, J., Fabrega, E.

    According to the theory of behavioural strategies, individual animals show clear consistency when they have to adapt to environmental changes and challenges: their responses are predictable in different situations and throughout time. The main objective of this research was to evaluate...

  11. A survey assessment of the incidence of fur-chewing in commercial chinchilla ( Chinchilla lanigera ) farms

    Contributor(s):: Ponzio, M. F., Busso, J. M., Ruiz, R. D., Cuneo, F. M. de

    Chinchilla lanigera intensive breeding programmes are affected by an abnormal repetitive behaviour called 'fur-chewing', yet the aetiology is still unknown and little scientific work has been published on this condition. Recent studies have supported the idea that fur-chewing is a stress-related...

  12. Breeding amiable animals? Improving farm animal welfare by including social effects in breeding programmes

    Contributor(s):: Rodenburg, T. B., Bijma, P., Ellen, E. D., Bergsma, R., Vries, S. de, Bolhuis, J. E., Kemp, B., Arendonk, J. A. M. van

    Social interactions between individuals, such as co-operation and competition, are key factors in evolution by natural selection. As a consequence, evolutionary biologists have developed extensive theories to understand the consequences of social interactions for response to natural selection....

  13. Breeding for behavioural change in farm animals: practical, economic and ethical considerations

    Contributor(s):: D'Eath, R. B., Conington, J., Lawrence, A. B., Olsson, I. A. S., Sandoe, P.

    In farm animal breeding, behavioural traits are rarely included in selection programmes despite their potential to improve animal production and welfare. Breeding goals have been broadened beyond production traits in most farm animal species to include health and functional traits, and...

  14. Genetic parameters for birth difficulty, lamb vigour and lamb sucking ability in Suffolk sheep

    Contributor(s):: Macfarlane, J. M., Matheson, S. M., Dwyer, C. M.

    This study investigates the genetic basis of lamb vigour (defined as neonatal lamb activity and sucking ability) and lambing difficulty as potential traits to be included in selection programmes to improve ewe and lamb welfare. Scores for lamb birth difficulty, vigour and sucking ability were...

  15. Optimisation of breeding strategies to reduce the prevalence of inherited disease in pedigree dogs

    Contributor(s):: Lewis, T. W., Woolliams, J. A., Blott, S. C.

    One option for improving the welfare of purebred dog breeds is to implement health breeding programmes, which allow selection to be directed against known diseases while controlling the rate of inbreeding to a minimal level in order to maintain the long-term health of the breed. The aim of this...

  16. Selective breeding of primates for use in research: consequences and challenges

    Contributor(s):: Honess, P., Stanley-Griffiths, M. A., Narainapoulle, S., Naiken, S., Andrianjazalahatra, T.

    Primates are bred in captivity for a number of purposes, from zoo-based captive breeding programmes for conservation to breeding for biomedical research. In each case, breeding animals that are fit for purpose, either as viable candidates for reintroduction or as valid research models, has...

  17. Staying good while playing God - the ethics of breeding farm animals

    Contributor(s):: Sandoe, P., Nielsen, B. L., Christensen, L. G., Sorensen, P.

    This review discusses the goals and consequences of farm animal breeding within an ethical context. Firstly, a description is given of what has happened in the broiler and dairy cattle industries as a result of selection for increased production. Secondly, the ethical values that ought to...

  18. The effect of breeding schemes on the genetic response of canine hip dysplasia, elbow dysplasia, behaviour traits and appearance

    Contributor(s):: Maki, K., Liinamo, A. E., Groen, A. F., Bijma, P., Ojala, M.

    Current dog breeding programmes must be changed if genetic improvement in health and behaviour traits is to be achieved. A computer simulation programme was used to assess the possible genetic improvement in hip dysplasia (HD), elbow dysplasia (ED) and behaviour (BE) traits in a dog population...