Desempenho e qualidade dos ovos de poedeiras semipesadas alimentadas com dietas contendo farinha da parte aérea da mandioca (folhas e ramas)

Abstract

Consumer demand for differentiated products in their ways of production and its attributes of sensory quality, stimulates the search for enriched eggs with carotenoids, antioxidants that contribute to the improvement of human nutrition. One alternative for obtaining yolks enriched with carotenoids is the use of the leaves and branches of cassava plant (FPAM - Manihot esculenta Crantz), currently wasted by farmers. Being a natural product, inexpensive and easy to obtain, this research project aims to evaluate the effect of including FPAM in the diet of laying hens and the results on production and external and internal quality of eggs. This trial was run in the Poultry Research facilities of CAVG / IFSul from August to October 2014, during four 21-day cycles of laying periods. Four treatments with 16 repetitions each, with three birds per cage, in a total of 70-week old 192 Isa Brown layers were used. The treatments consisted of: T1: basal diet; T2: basal diet + 0.15% FPAM (on top); T3: basal diet + 0.30% of FPAM (on top); T4: basal diet + 0.45% of FPAM (on top). The parameters of production and external and internal egg quality in eggs were evaluated at the CAVG/IFSul Laboratory of Eggs. The statistical analysis used the SAS software (Statistical Analysis System - Analytics Pro). Treatments containing different levels of FPAM, despite the higher fiber contents (T4) did not significantly alter the parameters evaluated in the 4th cycles. Exception occurred in the 1st cycle with a significant difference in feed intake, which, among the studied values suggests that a greater inclusion of FPAM in the diet of laying hens could be investigated. These results indicate that the use of FPAM does not affect laying hen performance and egg quality.