Efecto del extracto de Melissa Officinalis (Toronjil) en la producción de pollos broilers

Abstract

In Tungurahua province, Píllaro Canton, in San Miguelito parish, San Pedro de Cruzñan neighbor, the Melissa officinalis (Toronjil) extract was evaluated at 2, 4 and 6 % water dissolved for the production of broilers chicken compared with a control treatment with 5 repetitions E.U.S. 10 chickens (Experimental Unit Size) resulting a total of 200 chickens distributed under a completely randomized design during 49 days. The experimental results were subjected to analysis of variance (ANOVA) and mean separation by Duncan (p<0,05 and p <0,01).The results obtained demonstrated an excellent behavior with a 6 % Melissa officinalis water dissolved extract (Treatment 3) related to the other treatments, that is how it was possible to obtain a final weight of 2570,40 ± 12,83 g; weight gaining of 51,55 ± 12,99 g/day; feeding conversion of 1,94 ± 0,01; the total food consumption was 4924,38 ± 19,35 g per chicken, with a morbidity reduction. The nutrient consumption was efficient for the same treatment (T3) that is: raw protein 17,2 ± 0,07 g/day, Metabolic Energy 281,97 ± 1,11 Kcal/day. Regarding to the sanitary evaluation of chickens, the parasite load was zero with the use of Melissa officinalis extract since the parasite presence was null and the positive bacterium charge was 6 % extract with 93,77 % (Positive Gram). On the other hand a higher profitability was obtained with a cost-benefit index of 1,15 dollars it means a profitability of 15 %. Due to these reasons it is recommended to use this level of Melissa officinalis extract, since it increases the productive parameters and improves the health of chickens.