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Tags: Genes + Animal genetics

All Categories (1-19 of 19)

  1. Protein expression and genetic variability of canine Can f 1 in golden and Labrador retriever service dogs

    Full-text: Available

    | Contributor(s):: Breitenbuecher, C., Belanger, J. M., Levy, K., Mundell, P., Fates, V., Gershony, L., Famula, T. R., Oberbauer, A. M.

    Background: Valued for trainability in diverse tasks, dogs are the primary service animal used to assist individuals with disabilities. Despite their utility, many people in need of service dogs are sensitive to the primary dog allergen, Can f 1, encoded by the Lipocalin 1 gene (LCN1). Several...

  2. Differences in open field behavior between heterozygous and homozygous negative gilts for the RYR(1) gene

    | Contributor(s):: Fabrega, E., Diestre, A., Font, J., Carrion, D., Velarde, A., Ruiz-de-la-Torre, J. L., Manteca, X.

    A test widely used to assess fear and novelty responses in domestic species is the open field. The aim of this study was to investigate the effect of RYR(1) genotype on open field behavior in growing pigs. The study subjected 15 heterozygous (Nn) and 15 RYR(1)-free (NN) gilts of 19 weeks of age...

  3. Purebred dogs and canine wellbeing

    Full-text: Available

    | Contributor(s):: Jeppsson, S.

    Breeders of purebred dogs usually have several goals they want to accomplish, of which canine wellbeing is one. The purpose of this article is to investigate what we ought to do given this goal. Breeders typically think that they fulfil their wellbeing-related duties by doing the best they can...

  4. Canine olfactory genetics

    | Contributor(s):: Quignon, P., Robin, S., Galibert, F.

  5. Organization and expression of canine olfactory receptor genes

    Full-text: Available

    | Contributor(s):: Issel-Tarver, L., Rine, J.

    Four members of the canine olfactory receptor gene family were characterized. The predicted proteins shared 40-64% identity with previously identified olfactory receptors. The four subfamilies identified in Southern hybridization experiments had as few as 2 and as many as 20 members. All four...

  6. Exploiting abstract possibilities: a critique of the concept and practice of product patenting

    | Contributor(s):: Radder, H.

    Developments in biotechnology and genomics have moved the issue of patenting scientific and technological inventions toward the centre of interest. In particular, the patentability of genes of plants, animals, or humans and of genetically modified (parts of) living organisms has been discussed,...

  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. Domestication - from behaviour to genes and back again

    | Contributor(s):: Jensen, P.

    During domestication, animals have adapted with respect to behaviour and an array of other traits. This tends to give rise to a specific domestication phenotype, involving similar changes in colour, size, physiology and behaviour among different species. Hence, domestication offers a model for...

  9. Genetics and genomics of animal behaviour and welfare - challenges and possibilities. (Special Issue: Farm animal welfare since the Brambell report.)

    | Contributor(s):: Jensen, P., Buitenhuis, B., Kjaer, J., Zanella, A., Mormede, P., Pizzari, T.

    Traditionally, the contribution of applied ethology to animal welfare science has concentrated on understanding the reactions of animals to their housing conditions. Domestication has had small effects on fundamental aspects of animal behaviour, and therefore, the needs of present day...

  10. An approach to canine behavioural genetics employing guide dogs for the blind

    | Contributor(s):: Takeuchi, Y., Hashizume, C., Arata, S., Inoue-Murayama, M., Maki, T., Hart, B. L., Mori, Y.

    The purpose of this study was to attempt to find related variables of the canine genome with behavioural traits of dogs maintained and tested in a guide dog facility which provided a relatively uniform environment. The study involved 81 Labrador Retrievers that were being trained as guide dogs....

  11. Genetics and animal domestication: new windows on an elusive process

    | Contributor(s):: Dobney, K., Larson, G.

    Domesticated animals are universally familiar. How, when, where and why they became domesticated is less well understood. The genetic revolution of the past few decades has facilitated novel insights into a field that previously was principally the domain of archaeozoologists. Although some of...

  12. Behaviour in pigs from three genotypes segregating at the halothane locus

    | Contributor(s):: Schaefer, A. L., Sather, A. P., Tong, A. K. W., Lepage, P.

    Time-lapse video recordings were made over 24-h periods on 32 halothane-negative pigs (NN) and halothane-positive pigs (nn) and on 16 of their progeny (Nn). Ethograms constructed from the tapes revealed that halothane-positive pigs drank and ate less frequently and spent longer investigating...

  13. Traits and genotypes may predict the successful training of drug detection dogs

    | Contributor(s):: Maejima, M., Inoue-Murayama, M., Tonosaki, K., Matsuura, N., Kato, S., Saito, Y., Weiss, A., Murayama, Y., Ito, S.

    In Japan, approximately 30% of dogs that enter training programs to become drug detection dogs successfully complete training. To clarify factors related to the aptitude of drug detection dogs and develop an assessment tool, we evaluated genotypes and behavioural traits of 197 candidate dogs. The...

  14. Maternal infanticide in sows: incidence and behavioural comparisons between savaging and non-savaging sows at parturition

    | Contributor(s):: Chen, CongYing, Gilbert, C. L., Yang, GuangCheng, Guo, YuanMei, Segonds-Pichon, A., Ma, JunWu, Evans, G., Brenig, B., Sargent, C., Affara, N., Huang, LuSheng

    Aggressive behaviour by newly farrowed sows towards their own offspring, known as savaging, occurs commonly in the domestic pig, with a significant impact upon both the agricultural economy and animal welfare. The aims of this study were to investigate the incidence and nature of this behaviour...

  15. Challenges and paradoxes in the companion-animal niche

    | Contributor(s):: McGreevy, P. D., Bennett, P. C.

    By definition, the companion-animal niche demands merely that animals must provide companionship. At first glance, this may seem easy enough, but the forces that contribute to success in this niche are complex. Indeed, success as a companion is rarely measured in terms of biological fitness, and...

  16. Differences in the expression of genes in lame and normal broiler chickens identified by subtraction hybridisation

    | Contributor(s):: Butterworth, A., Reeves, N. A., Knowles, T. G., Kestin, S. C.

    In the UK, broiler chickens are normally slaughtered at about six weeks of age when they weigh approximately 2.2 kg; this contrasts with the growth of an 'unimproved' traditional strain of bird such as a White Sussex, which would weigh about 800 g at the same age. Lameness, characterised by...

  17. Domestication, selection, behaviour and welfare of animals - genetic mechanisms for rapid responses

    | Contributor(s):: Jensen, P.

    Increased production has been the major goal of animal breeding for many decades, and the correlated side-effects have grown to become a major issue in animal welfare. In this paper, the main genetic mechanisms in which such side-effects may occur are reviewed with examples from our own research...

  18. Effect of the halothane gene on pre-slaughter mortality in two Spanish commercial pig abattoirs

    | Contributor(s):: Fabrega, E., Diestre, A., Carrion, D., Font, J., Manteca, X.

    A total of 107 ear samples from all the pigs that died during transport or lairage at two commercial abattoirs in Spain were collected during two months (February and July 2000), in order to determine their halothane genotype (NN, Nn or nn). The frequencies of the three halothane genotypes among...

  19. Ethical decisions concerning animal biotechnology: what is the role of animal welfare science?

    | Contributor(s):: Olsson, I. A. S., Sandoe, P.

    Scientists recently attracted considerable public attention when they presented a featherless chicken tailored for production in hot climates. Although this chicken was actually the result of traditional breeding, it is an example of what might be achieved if targeted gene manipulation techniques...