%0 Journal Article
%T Effect of the addition of fresh leaf oregano (origanum vulgare) production performance of broilers Efecto de la adici車n de las hojas frescas de or谷gano (origanum vulgare) en el rendimiento productivo de pollos de engorde.
%A Yesid Gonz芍lez
%A Andrea Jim谷nez
%J Cultura Cient赤fica
%D 2011
%I Fundaci車n Universitaria Juan de Castellanos
%X In Colombia since 1984, allows the use of antibiotic growth promoters (APC) as a mechanism to improve the productive performance of poultry. but the use of subtherapeutic levels APC favors the development of antibiotic resistance factors, causing a public health problem, by the emergence of resistant bacteria. However, the use of vegetable extracts emerges as an alternative phytogeneticto the use of APC. The extract of oregano has been commonly used for its antioxidant and bacteriostatic action allowing the improvement of productive performance of broilers. The aim of this study was to evaluate the effect of the addition of fresh leaves of oregano (O. vulgare) on weight gain, efficiency and feed conversion in Cobb broilers. For this purpose we performeda study with a randomized experimental model and duration of 32 days, 8 of which were a period of adaptation to the oregano leaves feeding. Three treatments were used, each with 30 chicks of the Cobb line with independent registers and fed a commercial concentrate. The T3 is called control; the T1 and T2 were added to the commercial diet 1 and 5% respectively of fresh oregano leaves. It is observed that there is no statistically significant difference(p≡0.05) for weight gain, but if, there are statistically significant differences in the efficiency and feed conversion (p≒ 0.05) with respect to the control treatment (T3). Suggesting, that the addition of fresh leaves of oregano can improve production efficiency in poultry. En Colombia, desde 1984, se permite el empleo de antibi車ticos promotoresde crecimiento (APC), como mecanismo para mejorar el rendimiento productivode la avicultura, pero el uso de APC a niveles subterap谷uticos favorece la aparici車n de factores de resistencia a estos medicamentos, causando un problema de salud p迆blica, por el surgimiento de bacterias resistentes. De ah赤, que el uso de extractos vegetales es una alternativa fitog谷netica al uso de los APC. Entre varios, el de or谷gano ha sido com迆nmente usado en la alimentaci車n animal por sus efectos antioxidantes y bacteriost芍ticos permitiendo el mejoramiento del rendimiento productivo de pollos de engorde. El objetivo de este trabajo es evaluar el efecto de la adici車n de hojas frescas de or谷gano (O. vulgare) en la ganancia de peso, eficiencia y conversi車n alimenticia en pollos de la l赤nea Cobb. Para esto se realiz車 un estudio con un modelo experimental aleatorio con una duraci車n de 32 d赤as; 8 de los cuales fueron de adaptaci車n a las hojas de dicha planta. Se emplearon tres tratamientos, cada uno con 30 pollos de la l赤nea Cobb con registros
%K aditivo
%K elecci車n de alimentos
%K aves de corral
%K conversi車n del alimento
%U http://www.revistasjdc.com/main/index.php/ccient/article/view/81