RESEARCHES CONCERNING THE PRODUCTION PERFORMANCES OF "ROSS-308" CHICKEN BROILERS, REARED IN FAMILIAL-TYPE FARMS

R. Bălău, I. Vacaru-Opriş

Abstract
The paper presents the results of an experiment in chicken broilers husbandry, in accordance with the technological conditions required by the E.U. animals welfare regulations which will become compulsory since 2012, in al member states. 3000 ROSS-308 broilers were used as biological material, divided in 2 groups, as the applied technology imposed: Control group-LC (natural lighting, natural ventilation, access in grassy paddock, conventional feeders and water devices); Experimental group-LE (artificial microclimate, closed hall, automated equipments). Studied parameters: weight gain dynamics, average daily gain; feed intake, casualties dynamics, economic performances. At 42 days old, chickens weight reached 2.29 kg/broiler in LC and 2.45 kg/broiler in LE, compared to 2.65 kg/bird (hybrid standard). These performances where reached under certain acquired values for feed conversion 2.03 kg feed/kg gain in LC, respectively 1.94 kg feed/kg gain in LE, compared to 1.75 kg feed/kg gain (standard). Both technological versions brought revenue, although in LE (intensive system), revenue rate was 16.31% higher than that achieved by LC (familial type system). Therefore, a new settled familial microfarm could gain revenue from a 1500 chicken broilers rearing series even this one is lower than that achieved within the intensive rearing system.

Key words: broiler chickens, familial farms, gain, feed conversion, revenue