Fatty acid profile of meat from broiler chickens fed with different oil sources

espanolEl objetivo de este estudio es evaluar el efecto de diferentes aceites (soja, girasol, canola y pollo) en el alimento para pollos, creados para el rendimiento de los pollos de engorde. Se analizaron los contenidos de perfil de acidos grasos, colesterol en carne de pollo y sus respectivos rendimientos como pollos de engorde. Los 1,000 machos de pollos de engorde de Cobb de 42 dias de vida, solo fueron alimentados con una dieta especifica, y despues de este periodo fueron sacrificados. Los pollos utilizados como control se sacrificaron a los 21 dias de edad, estos pollos se alimentaron a base de una dieta comercial. Se informa que el rendimiento del pollo de engorde, el contenido de colesterol y la composicion fisicoquimica de la alimentacion en los cortes de carne (pechuga sin piel, piel de la pechuga y muslo sin piel) se ven afectados por la alimentacion especifica. El perfil de acidos grasos de la dieta vario dependiendo de cada aceite utilizado en la formulacion, encontrandosevalores mas bajos de acidos grasos saturados (SFA) para los aceites de canola y girasol. En la carne de pollo, los resultados para el muslo sin piel, la pechuga sin piel y la piel de la pechuga fueron similares a los perfiles de acidos grasos, variando solo el tipo de tratamiento de alimentacion. Despues del analisis de las muestras, los acidos grasos poliinsaturados (PUFA), que aparecen en mayor concentracion, son 18: 2n-6 y 18: 3n-3. Por lo tanto, los cortes de pollos alimentados con aceites de girasol y soja evidenciaron niveles mas altos de 18: 2n-6. Variablemente, los cortes de pollo alimentados con aceite de canola, mostraron niveles mas altos de 18: 3n-3, en comparacion con otros tratamientos. Considerando el equilibrio de n-6 / n-3 y la concentracion de acido graso insaturado en la carne de pollo, los pollos alimentados con aceite de canola presentaron mejores caracteristicas nutricionales. EnglishThe aim of this study was to evaluate the effect of different oils (soybean, sunflower, canola, and chicken) in chicken feed, created for broiler performance. The contents of fatty acid profile, cholesterol in chicken meat parts (breast and thigh) and their respective performance as broilers were analyzed. The 1,000 males Cobb broiler chickens to obtain 42-day-old, they have been solely fed with a specific diet, and after this period slaughtered. Chickens utilized as control were slaughtered at 21-day-old, this chickens classified as default were fed a commercial diet. The broiler performance, cholesterol content and physicochemical composition of feed diet in the chicken meat cuts (skinless breast, breast with skin and skinless thigh) are reported as not affected by specifying alimentation. Fatty acid profile of feed diet varied from each oil used in the formulation, where lower values of saturated fatty acid (SFA) verified in feed formulated with canola and sunflower oils. In chicken meat, the results for skinless thigh, skinless breast, and breast with skin, were similar to the fatty acid profiles, only varying the type of feed treatment. After samples analysis, the polyunsaturated fatty acid (PUFA), that appear in greater concentration, are 18:2n-6 and 18:3n-3. Accordingly, cuts from chickens fed with sunflower and soybean oils evidenced higher levels of 18:2n-6. Variously, cuts from chicken fed with canola oil demonstrated highest levels of 18:3n-3, when compared with others treatments. Considering the balance of n-6/n-3 and concentration of unsaturated fatty acid in chicken meat, chickens fed with canola oil expressed greater nutritional characteristics.