| Autor: |
Villar-Patiño G; Programa de Doctorado en Ciencias de la Salud y de la Producción Animal, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Avenida Universidad 3000, Coyoacán, Ciudad de Mexico 04510, Mexico.; Grupo Nutec, Avenida de las Fuentes No. 14, Parque Industrial Bernardo Quintana, El Marqués 76246, Querétaro, Mexico., Camacho-Rea MDC; Instituto Nacional de Ciencias Médicas y Nutrición 'Salvador Zubirán', Departamento de Nutrición Animal, Tlalpan, Ciudad de Mexico 14080, Mexico., Olvera-García ME; Grupo Nutec, Avenida de las Fuentes No. 14, Parque Industrial Bernardo Quintana, El Marqués 76246, Querétaro, Mexico., Baltazar-Vázquez JC; Specialized Animal Nutrition Research Network, Grupo Nutec, La Valla, San Juan del Río 76814, Querétaro, Mexico., Gómez-Verduzco G; Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Avenida Universidad 3000, Coyoacán, Ciudad de Mexico 04510, Mexico., Téllez G; Department of Poultry Science, University of Arkansas, Fayetteville, AR 72701, USA., Labastida A; OMICs Analysis, Camino a Xilotepetl No. 45, Tepoztlán 62520, Morelos, Mexico., Ramírez-Pérez AH; Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Avenida Universidad 3000, Coyoacán, Ciudad de Mexico 04510, Mexico. |
| Abstrakt: |
This study analyzed the effects of an Alliaceae encapsulated extract (AE-e) on daily gain (ADG), feed intake (ADFI), feed conversion ratio (FCR), oocysts per gram of feces (OPG), intestinal lesion (LS), and microbiota composition in broilers challenged with Eimeria spp. A total of 4800 one day Cobb-500 were allotted into 10 treatment groups with 12 replicates of 40 birds in a 2 × 4 + 2 factorial arrangement. The first factor was non-challenged (NC) or challenged (C), the second was four levels of AE-e added in the basal diet, 0 (AE0), 250 (AE250), 500 (AE500), and 750 mg·kg -1 (AE750), plus two ionophore controls, non-challenged (NC-Ion) and challenged (C-Ion). No interactions were observed between factors (NC0, NC250, NC500, NC750, C0, C250, C500, and C750), while C-Ion improved FCR at 21 d. The challenge affected negatively ADG and FCR and promoted enteropathogens in cecum. AE750 improved FCR in the finisher and cumulative phases, while C-Ion had fewer total OPG than C0 and C250. Likewise, at 21d, C250, C500, and C-Ion had fewer LS than C0, while at 28 d, C750 showed lower than C-Ion. In the cecum microbiota, C500 had more Ruminococcus, Firmicutes b, and Intestinimonas than C-Ion. In summary, AE-e showed beneficial results in broilers infected with Eimeria spp. |
