Lege- und Schlachtleistung von Hennen aus experimentellen Zweinutzungs-Kreuzungen der ÖTZ
The high performance of modern layer hybrids comes at the cost of inefficient growth performance of the males, which has led to the ethically unacceptable practice of culling day-old male layer chicks. Apart from in-ovo sexing, dual-purpose chicken genotypes are another possible alternative to this dilemma. We compared four different chicken crosses from ÖTZ stock with regard to their dual-purpose potential. Hereafter, results from the laying period of the hens are presented. With regard to their live weight development, feed consumption and slaughter performance, the crossbred hens reached a level similar to purebred ÖTZ Bresse Gauloise hens. However, their laying performance was higher, and although considerably lower than the performance of the layer hybrid Lohmann Sandy, seems to show a dual-purpose potential. Therefore, further breeding activities are recommended, and will probably highlight differences between the tested crosses, which did not clearly appear in this study.