Autores/as
Resumen
La industria avícola enfrenta el desafío de producir alimentos de calidad sosteniblemente, impulsando la búsqueda de alternativas a la soja y harina de pescado. La fracción sólida concentrada de alfalfa, denominada extracto sólido de alfalfa (ESA), representa una opción prometedora por su alto contenido de proteínas y compuestos bioactivos. El objetivo es evaluar el efecto de incluir ESA (0,5 %, 1 % y 2 %) en dietas de gallinas ponedoras sobre parámetros productivos, calidad del huevo y perfil lipídico de la yema. Se utilizaron 108 gallinas Babcock Brown de 14 semanas, distribuidas en cinco grupos (ESA0, ESA0.5, ESA1, ESA2 y control con multivitamínico). El ESA se obtuvo mediante un proceso artesanal de extracción y secado de harina de alfalfa. Se evaluaron peso corporal, tasa de postura, consumo de alimento, peso del huevo, pigmentación de la yema, espesor de cáscara, unidades Haugh y perfil lipídico de la yema por cromatografía de gases. El ESA concentró proteínas (12,2 % a 18,2 %) y redujo la fibra cruda (41,2 % a 2,3 %). Su inclusión no causó mortalidad ni afectó significativamente el peso corporal, consumo, postura o peso del huevo (p > 0,05). Tampoco hubo diferencias en pigmentación, espesor de cáscara o unidades Haugh. En el perfil lipídico, aunque sin significancia estadística, se observaron tendencias hacia menor ácidos grasos saturados y mayor omega-3 en grupos con ESA. La inclusión de hasta 2 % de ESA en dietas de gallinas ponedoras es segura, no compromete la productividad ni calidad del huevo, y muestra potencial para mejorar su valor nutricional. Su bajo costo y método sencillo podría posicionarlo como alternativa funcional y sostenible para la producción avícola.
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