STUDIES ON THE PRODUCTIVE PERFORMANCE OF TRANSYLVANIAN NAKED NECK ROOSTERS IN THE POST-CAPONISATION PERIOD

Cipriana Maria Cuciureanu, M.G. Usturoi, R.M. Radu-Rusu, L.C. Burtan, M. Fântânaru

Abstract
    The research followed the productive performances of the Transylvanian Naked Neck roosters in the post-caponisation period (from the 6th week of life until the 12th week inclusive). In this sense, two groups of birds were established, of which one experimental LE consisting of 20 roosters and a control lot (LM) with 10 heads. At the age of 6 weeks, the birds from LE underwent the operation of removing the testicles (caponisation) by the method of bilateral laparatomy in the last intercostal space. When the research ends (12 weeks of age of the birds, the roosters in the experimental group recorded a mortality of 70%, a total increase in weight gain of 1124.17 g / head / period, in terms of an average daily consumption of 127, 32 g / head / day and a feed conversion index of 3.81 kg nc / kg increase. The roosters in the control group (uncastrated) registred a mortality rate of 50%, a total increase in weight of 1341.5 g / head / period, an average daily food consumption of 127.08 g nc / head / day and a feed conversion index of 3.23 kg nc / kg increase.