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Silva et al., 2000. Rev. Bras. Zootec., 29 (3): 823-829

Document reference 
Silva, H. O. ; Fonseca, R; A. da; Guedes Filho, R. de S., 2000. Productive traits and digestibility of cassava leaf meal in broiler diets with or without addition of enzymes. Rev. Bras. Zootec., 29 (3): 823-829
Alternative title 

Características produtivas e digestibilidade da farinha de folhas de mandioca em dietas de frangos de corte com e sem adição de enzimas


Experiments were carried out to determine the digestibility (Experiment 1) and the effect of the inclusion of cassava leaf meal (CLM) with and without the addition of multi-enzyme complexes (MEC) in male broiler diets (Experiment 2) of the Hubbard strain. The MECs used were made up of Energex (b-glucanase, pectinase, hemicellulose) and Bio-Feed Alpha (b-glucanase, amylase). In Experiment 1, birds with 21 days of age were used, with the level of inclusion of 0 - 41.67% of CLM to determine the digestibility coefficient of the gross energy and crude fiber (DCGE/DCCF) and to determine the values of apparent and corrected metabolizable energy (AME/nAME). In Experiment 2, birds from 1 to 21 days of age, fed diets with levels of inclusion of 0 - 10.34% of CLM were used to evaluate the average feed intake (DAI), average weight gain (AWG) and average feed: gain (AF: G). In Experiment 1, there was difference for the values of DCGE, DCCF, AME and nAME, occurring a decrease on the digestibility as the CLM inclusion levels increased on the basal diet. With the addition of the MECs, an improvement in the analyzed traits was evidenced. The determination of the values of AME and nAME were of 1.697 and 1.694 kcal/Kg/DM CLM, respectively. In Experiment 2, the level of highest inclusion of CLM was the one which presented the poorest result for the traits RAI, AWG and AFC while the level of 5.17% of CLM did not impair the animals performance. The addition of the MEC did not improve the nutritive value of CLM.

Citation key 
Silva et al., 2000