Literaturrecherche

Literatur Schilling E, Smidt D, Farries FE, Gauchel FR (1980) Different prepartum feeding levels in dairy cows and the postpartum reproductive efficiency. In: Kuratorium für Technik und Bauwesen in der Landwirtschaft (ed) 9th International Congress on Animal Reproduction and Artificial Insemination, 3 Symposia (free communications). Madrid: Editorial Garsi, p 352

Literatur Schilling E, Niemann H, Cheng SF (1980) Evaluation of deep frozen cattle embryos. In: Kuratorium für Technik und Bauwesen in der Landwirtschaft (ed) 9th International Congress on Animal Reproduction and Artificial Insemination, 3 Symposia (free communications). Madrid: Editorial Garsi, p 463