Meat quality evaluation of Hungarian Carp Cyprinus carpio from different cultivation systems in Southern Brazil
Of Asian origin, the carp was raised in China more than 2,000 years ago, but it was only introduced in Brazil in 1904. Among the different types of fish farming, the system of integration with other animals has been widely used, possibly due to the low production costs. Thus, the creation of carp with chicken and pig manure has been widely used in southern Brazil, especially in Rio Grande do Sul. The present work aims to evaluate the effects of these breeding systems on the quality of the produced pulp. It was divided into two chapters. In the first one, the effect of the transport method on the quality of the pulp of the Hungarian carp Cyprinus carpio from crops in which they were fed with feed, raised with pig manure and chicken manure was studied.In the second chapter, the influence of the carp cultivation systems fed with feed, created with pig manure and chicken manure on the quality of the Hungarian carp pulp was evaluated. The pulp was minimally processed, vacuum packed in polyethylene and kept under refrigeration at 2 ± 1ºC until the moment of analysis. To evaluate the effect of the transport method and the influence of culture systems on the Hungarian carp pulp, analyzes of carcass yield and proximal composition in the muscle and pulp were performed. The analyzes of BVT (total volatile bases), pH, IP (peroxide index) and TBA (thiobarbituric acid) in the pulp were performed on the 1st, 4th, 7th, 15th and 30th days of conservation. In the first chapter, the results indicate that despite the small differences found in the analyzes performed,it is quite evident that it cannot be said that the methods of transport (transporting live carp or ice) have differences in the quality of the pulp. With regard to the second chapter, the results indicate that chicken manure possibly has a worse quality protein than other treatments.