RESEARCH REGARDING THE QUANTITATIVE PRODUCTION OF MEAT IN ROSS-308 CHICKENS UNDER THE USE OF NATURAL BIOSTIMULATORS

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

Abstract
   Meat processing involves several successive transformations, the first consisting in obtaining the carcass, and the second ensures the separation of the carcass from by-products (bones, skin, feathers), the meat being used in the manufacture of the products. In this paper we aim to analyze the quantitative meat production obtained from the chicken broiler Ross-308. The biological material was 100 commercial hybrids of ROSS-308 chicken. The birds were reared according to the species-specific technology, and the actual determinations were performed on 20 individuals (10 males and 10 females) who were slaughtered at the age of 42 days. During the research, one of the indicators followed was the live weight, by weighing the flock of birds, using an electronic scale. After slaughter, the poultry carcasses were weighed fresh, but also after refrigeration (24h at 4°C). With the data provided, the slaughter yield and the share of participation in the carcass composition of the cut portions were calculated. The data were statistically processed using the Anova (Analysis of variance) program. After weighing the studied males, an average weight of 2622.98 g was found, and in females, the average recorded weight was 2480.04 g. and 76.67% on refrigerated carcasses). In the case of females, slightly lower values were obtained, of 74.28% for the cold yield and 75.68% for the hot yield; recorded the best performance in the thighs (21%) and in the chest (24%). Females had higher values in the case of back, which occupied about 49% of the total carcass. In both sexes, the wings had a participation rate of about 9%. Due to the qualities that poultry broiler meat presents, there is a growing demand for this type of meat on the world market, therefore, such research is of continuous interest. The rearing of the Ross-308 broiler in an intensive system has wide development perspectives, if an optimal technology is used, but also a good quality biological material.