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Tags: Artificial insemination + Artificial intelligence.

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  1. Training large macaws for artificial insemination procedures

    Contributor(s):: Leblanc, F., Pothet, G., Jalme, M. S., Dorval, M., Bovet, D.

    For some endangered parrot species, captive breeding may be the only insurance for their survival. However, many individuals in captivity do not reproduce. Artificial insemination (AI) may help overcome reproductive failures or geographic distance. For semen collection in birds, massage is the...

  2. Human-animal interaction, stress, and embryo production in Bos indicus embryo donors under tropical conditions

    Contributor(s):: Macedo, G. G., Zuccari Neto, C. E. S., Abreu, U. G. P. de, Negrao, J. A., Costa e Silva, E. V. da

    This study investigated the effect of human-animal interaction (HAI) and the stress response on the quality of embryo production in superovulated Nelore (Bos indicus) cattle, under tropical conditions. Thirty-two females underwent a superovulation protocol for 5 days. Cortisol concentrations were...

  3. Does in proestrus-estrus hasten estrus onset in does estrous synchronized during breeding season

    Contributor(s):: Romano, J. E.

    During the breeding season, 68 Nubian goats were synchronized for oestrus with intravaginal sponges impregnated with fluorgestone acetate (FGA, Chronogest, 30 mg; n=36) or medroxyprogesterone acetate (MAP, Sincrocel, 60 mg; n=32). The experiment was performed in two replicates. In each replicate,...

  4. Effect of different rearing systems and pre-kindling handling on behaviour and performance of rabbit does

    Contributor(s):: Mugnai, C., Bosco, A. dal, Castellini, C.

    The aim of this study was to ascertain how collective cage and pre-kindling handling (training does to go into their own nest) practices, in comparison to standard housing (single cage rearing), modify the behaviour and the performance of rabbit does. To this aim, 40 nulliparous New Zealand White...

  5. Previous handling and gentle interactions affect behaviour and heart rate of dairy cows during a veterinary procedure

    Contributor(s):: Waiblinger, S., Menke, C., Korff, J., Bucher, A.

    Veterinary and management procedures often are aversive to the animals, resulting in physiological and behavioural stress reactions, which increase the risk of accidents and might lower performance. We investigated the effects of previous positive handling and of gentle interactions during the...

  6. Social dominance of female dairy goats and response to oestrous synchronisation and superovulatory treatments

    Contributor(s):: Ungerfeld, R., Gonzalez-Pensado, S., Dago, A. L., Vilarino, M., Menchaca, A.

    Two experiments were performed to determine if there is a relation between the goat's hierarchical position, and (1) the conception rate and litter size obtained with hormonal oestrous synchronisation treatments and fixed timed artificial insemination, and (2) the number of corpus luteum (CL) and...

  7. Behavioral responses of bulls kept under artificial breeding conditions to compounds presented for olfaction, taste or with topical nasal application

    Contributor(s):: Presicce, G. A., Brockett, C. C., Cheng, T., Foote, R. H., Rivard, G. F., Klemm, W. R.

    The object of this study was to test practical ways of influencing behaviour of bulls used for artificial insemination. Dairy bulls that were sexually active with regular semen collections were compared with sexually inactive bulls housed elsewhere, after being sampled in artificial breeding as...

  8. Genotype rather than non-genetic behavioural transmission determines the temperament of Merino lambs

    Contributor(s):: Bickell, S., Poindron, P., Nowak, R., Chadwick, A., Ferguson, D., Blache, D.

    Merino ewes have been selected, over 18 generations, for calm (C) or nervous (N) temperament using an arena test and an isolation box test. We investigated the relative contributions of genotype versus the post-partum behaviour of the dam on the temperament of the lambs using a cross-fostering...