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Resources (41-48 of 48)

  1. 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...

  2. 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...

  3. 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...

  4. 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...

  5. Quality of life and the evolution of the brain

    Contributor(s):: Kendrick, K. M.

    The dual problem of explaining brain evolution and the way in which it has led to wide species differences in behaviour and physiology has often appeared intractable to scientists. The main limiting factor is that we do not understand enough about how brains work to appreciate why gross or fine...

  6. 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...

  7. 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...

  8. Occupational Histories, Settlements, and Subsistence in Western India: What Bones and Genes can tell us about the Origins and Spread of Pastoralism

    Contributor(s):: Patel, Ajita K.