Abstract
Part of the research program aimed at the relationship between the morphology and the physiological status of the turkey pineal gland in relation to the state of somatic development and it was performed in SC Galli Gallo Codlea, which is the only breeding and slaughter of turkeys in Romania. Blood determinations were performed on a livestock species important in modern animal breeding sciences, using the biological material from a number of individuals belonging to 30 BUT 6 hybrid raised on permanent litter that can provide knowledge on the relationship widening area of technology growth, modulation of microclimate parameters and growth performance assessed against physiological indicators. Determinations of haematological parameters (WBC, Lym., Neu., Mon., Eo., RBC, MCV, HCT, MCH, MCHC, RDW, Hb) were accomplished with the automatic analyzer based on fluorescence flux cytometry, using laser conductor and hydrodynamic focus. The need for a haematological profile of turkeys lies in the fact that they are characterized by an intense metabolism and possible nutritional imbalances are reflected promptly in their metabolism. Usually, in birds, white series is less used however it can provide essential information on the health of individuals. The determinations showed an average number of leukocytes of 28.47x103/mm3, and an average number of erythrocytes of 2.41x106/mm3. Results used as reference values in experiments involved modulation of the photoperiod in various age groups. The research showed differences between haematological expressions according to different experimental programmes, the pineal gland having some control over the heterophiles through the melatonin it secretes.
