STUDIES ON IMPROVING THE PERFORMANCE IN REARING THE ROSS-308 BROILER BY USING NATURAL BIOSTIMULATORS

Gabriela Atudosiei, Alina Teodorescu, C. Roşca, R.M. Radu-Rusu, M.G. Usturoi

Abstract
   In recent decades, more and more research has been done worldwide on the use of biostimulating products as dietary factors to increase weight gain and improve feed conversion to broiler chickens, as well as to preserve their condition. health and obtaining high quality carcasses. In this paper we aim to analyze the productive performance of the Ross-308 hybrid. The biological material was represented by 100 commercial hybrids of ROSS-308 hens. The birds were divided into 2 batches of 50 individuals each (LM-control batch and LA-batch where the "Esstence" biostimulator was administered) and reared according to the specific technology. species, from the age of one day and up to 42 days. During the research, one of the morphological indicators followed was body weight, and at the end of the week, the daily feed gain was calculated. Other indicators followed were the average daily consumption and the food conversion ratio. Finally, the data were statistically processed using the Anova (Analysis of variance) program. At the middle of the experiment (end of the 3rd week) the first batch (LM) had an average weight of 975.2g and the 2nd batch analyzed (LA), at this point in life exceeded the threshold of 1 kg, having an average body weight of 1119.3 g. After the first week of life, the chicks in the control batch (LM) achieved an average daily gain of 21.73 g / head / day. The birds in this series had a total increase (42 days), an increase of 54.91 g / head / day. For the second batch (LA), the results were slightly better. Thus, the weight gain started from a value of 23.87 g / head / day (after the first 7 days), the average for this parameter being 63.60 g / head / day. At the end of the experiment, the average of the first batch was higher compared to that obtained in the second batch (LM> LA) 1.66 kg c.f./kg increase> 1.22 kg c.f./kg increase. The final conclusion of our study is that the use of a good quality biological material, ensuring optimal microclimate conditions and good quality food, but also the administration of biostimulators helps to achieve good performance in growing Ross-308 hybrids for the production of meat.