The national poultry production has acquired great importance for being an activity of high socioeconomic impact and generates high demand for ingredients. Moringa oleifera has acquired great importance as a nutritional supplement and medicinal plant; therefore, it could represent an alternative as an immune stimulant. The effects of the inclusion of the M. oleifera leaf on the immunological constants of broiler chickens were evaluated. 180 chickens (females) Cobb genetic line were used, distributed in 3 treatments: Control, M10, and M20. Intestinal morphometry and the content of IgY were determined at 21 and 42 days. A completely randomized statistical design was used: ANOVA and comparison of Tukey's means were performed. At 42 days, the height of villi of the duodenum of the Control group obtained the lowest values (1485 μm) with respect to M10 and M20 groups. The height of the jejunum villi was significantly higher (P<0.05) in the M10 group, with respect to the M20 and Control groups. In the depth of the jejunum crypts, there was a difference (P<0.05) between the Control and M20, the latter being the least. The IgY content at 21 days was significantly higher (P<0.05) in the M10 and M20 than in the Control. M. oleifera has a positive effect as an immunostimulant and can be used in animal feeding.Moringa, broiler chicken, intestinal morphometry, immunology. RESUMEN La producción avícola tiene gran relevancia por su alto impacto socioeconómico, genera alta demanda de ingredientes. Moringa oleifera ha adquirido gran importancia como suplemento nutricional y planta medicinal, por tanto, podría representar una alternativa como estimulante inmunológico. Se evaluaron los efectos de la inclusión de la hoja M. oleifera sobre constantes inmunológicas de pollos de engorda. Se utilizaron 180 pollos (hembras) línea genética Cobb distribuídas en 3 tratamientos: Control, M10 y M20. Se evaluó morfometría intestinal y contenido de IgY a los 21 y 42 días. Se utilizó un diseño estadístico completamente al azar, se realizó ANDEVA y comparación de medias de Tukey. A los 42 días, la altura de vellosidades del duodeno del Control obtuvo valores más bajos (1485 μm) con respecto a los grupos M10 y M20. La altura de vellosidades de yeyuno fue significativamente mayor (P<0.05) en M10, con respecto a M20 y Control. En la profundidad de criptas de yeyuno existió diferencia (P<0.05) entre Control y M20, siendo este último el menor. El contenido de IgY a los 21 días fue significativamente mayor (P<0.05) en M10 y M20 con respecto a Control. M. oleifera tiene efecto positivo como inmunoestimulante y puede utilizarse en alimentación animal.Moringa, pollos engorda, morfometría intestinal, inmunología.
Objectives: The objective of the work was to identify a natural alternative that allows to obtain more efficient productive parameters and that in turn the immune system of the birds is more resistant to pathogens. The administration of seaweed polysaccharides has been shown to promote greater resistance to individuals under stress conditions, suggesting an immunostimulatory effect. Methodology: 582 male chickens of the Cobb genetic line were used, with one day of births which were distributed in 2 treatments with 3 repetitions of 97 birds: control treatment and treatment with polysaccharides. The polysaccharides used were of the Olmix © brand and were used at a dose of 45 g per 500 L of water on days 9, 11, 12, 19, 21, 22, 34, 36, and 37 of life. Productive parameters and cellular response were determined, which was performed by smears stained with the hayem-turk technique to later perform the count in the neubauer chamber. Samples for leukocyte and lymphocyte count were performed on days 9, 12, 19, 22, 34 and 37. Contribution: The use of polysaccharides can favor the weight gain of the broiler.
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