1. Die normale Geburt (Physiological parturition);Grunert,1993
2. Parturition in horses is dominated by parasympathetic activity of the autonomous nervous system;Nagel;Theriogenology,2014
3. Plasma glucocorticoid concentrations in calves as an indicator of stress during parturition;Hoyer;Am J Vet Res,1990
4. Influence of labor and neonatal hypoxia on sympathoadrenal activation and methionine enkephalin release in calves;Aurich;Am J Vet Res,1993
5. Bovine plasma corticoids during parturition;Hudson;J Dairy Sci,1976