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Prenatal stress in the farm animals
Tylová, Barbora ; Chaloupková, Helena (advisor) ; Hradec, Michal (referee)
This bachelor thesis presents summary information about prenatal stress in farm animals, more precisely in ruminants. The thesis is based on scientific papers and literature. Prenatal stress is divided according to stressors that can affect animals in agriculture like transport, manipulation, diet restriction, isolation, social instability and heat stress. The work describes principles of how the stress is transmitted from mother to the fetus, how the stress affects them and to what extent. Scientific articles confirmed the effect of prenatal stress on placental development (Baxter et al., 2016 ; McCrabb and Bortolussi, 1997) birth weight (Roussel et al., 2004; Duuvaux Ponter et al., 2003) nervous system (Weinstock, 2001; Baxter et al. 2016) and the offspring behavior (Roussel Huchette et al., 2008; Laporte Broux et al., 2012; Coulon et al., 2011). As pregnant females were in most of the cases exposed to a mild stress (compared to previous experiments on laboratory animals) the effect on offspring had a little impact on the body that proved to be beneficial. Some studies showed that abnormalities that were measured after birth were not proven at later age.
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