Productivity and Composition of Fatty Acids in Chicks fed with Azadirachta indica A. Juss

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Autores

Imna Trigueros V Miguel Ramón C José Vázquez O Juan Aguirre M Carlos Garcia C Jaime Martínez T

Resumen

ABSTRACT

Objective. Evaluate the productivity and composition of fatty acids in chicks fed diets enriched with neem Azadirachta indica A. Juss seed flour. Materials and methods. 80 mixed broiler chicks of Arbor Acres stock and levels 0, 1, 3 and 5% neem seed flour added to a commercial diet were evaluated. 20 experimental units were included in each treatment for five weeks. The consumption and weight gain were recorded, as well as the composition of fatty acids in the fat by means of alkaline transesterification. Data was statistically analyzed by a completely random procedure and the measurements were compared with the Tukey test(p≤0.05). Results. The greatest weight gain, consumption and best feed conversion were found in the treatment that contains 1% neem seed flour. It also produced the increase in the proportion of polyunsaturated fatty acids, especially linoleic acid (C18:2 Omega-6) and eicosapentaenoic acid (C20:5 omega-3), and the proportion of palmitic acid (C16:0). The consumption of feed diminished when 5% of neem flour was added. Conclusions. It was demonstrated that incorporating 1% neem seed flour in the diet of broiler chicks modifies the consumption of fatty acids without harming its productive behavior.

RESUMEN

Objetivo. Evaluar la productividad y composición de ácidos grasos en pollos alimentados con dietas adicionadas con harina de semilla de neem Azadirachta indica A. Juss. Materiales y métodos. Se emplearon 80 pollos mixtos de la estirpe Arbor Acres de engorda y se evaluaron los niveles 0, 1, 3 y 5% de harina de semilla de neem añadidos a una dieta comercial. En cada tratamiento se tuvieron 20 unidades experimentales con una duración de cinco semanas. Se registró el consumo y la ganancia de peso, así como la composición de los ácidos grasos de la grasa mediante transesterificación alcalina. Los datos se analizaron estadísticamente por el procedimiento completamente al azar y las medias se compararon con la prueba de Tukey (p≤ 0.05). Resultados. La mayor ganancia de peso, consumo y la mejor conversión alimenticia correspondió al tratamiento que contenia 1% de harina de semilla de neem. También propició el aumento en la proporción de ácidos grasos poliinsaturados especialmente en el ácido linoleico, (C18:2 omega-6) y en el ácido eicosapentaenoico (C20:5 omega-3), y de manera concomitante se redujo la proporción del ácido palmítico (C16:0). El consumo de alimento disminuyó al adicionar 5% de harina de neem. Conclusiones. Se demostró que la incorporación de 1% de harina de semilla de neem en la dieta de los pollos de engorda modifica la composición de ácidos grasos sin perjudicar su comportamiento productivo.

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Referencias

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