Intestinal mucosa structure of broiler chickens infected experimentally with Eimeria tenella and treated with essential oil of oregano

Ciência Rural

Maria Aparecida Da Silva²  Bruna Mirelly De Sousa Pessotti¹  Surama Freitas Zanini²  Geraldo Luiz Colnago¹  Maria Regina Alves Rodrigues¹  Louisiane De Carvalho Nunes²  Marcos Santos Zanini²  Isabella Vilhena Freire Martins² 

[1] ,Universidade Federal do Espírito Santo Centro de Ciências Agrárias Departamento de Medicina VeterináriaAlegre ES ,Brasil

关键词: broiler;    Origanum oil;    intestinal morphometric;    Eimeria;    coccidiosis;    frangos de corte;    morfometria intestinal;    Eimeria;    óleo de orégano;    coccidiose;   

DOI  :  10.1590/S0103-84782009005000135

来源: SciELO

【 摘 要 】

In the first trial a total of 250 day-old male chicks were distributed into five treatments and given the following diets: a diet with growth promoter; a diet without added growth promoter; a diet added with avilamycin only; diet supplemented with 0.5g of oregano oil kg diet-1; 1.0g of oregano oil kg diet-1. In other trial a total of 288 day-old chicks was used and distributed into four treatments, which were given the following diets: a diet with anticoccidial agent; a diet without anticoccidial agent; a diet supplemented with 0.5g of oregano oil kg diet-1; a 1.0g of oregano oil kg diet-1. In the first trial the nonmedicated group had the highest crypt depth which differs from chickens fed with growth promoter or with 0.5 and 1.0g of oregano oil kg diet-1. The broilers fed with positive control (antibiotic and anticoccidial) had the highest villous: crypt ratio compared with the negative control that had the lowest villous:crypt ratio and the highest oocyst excretion in litter (P<0.05) In the second trial it was observed that broilers fed with non anticoccidial agent had the highest cecal lamina propria thickeness which differ from chickens fed with anticoccidial agent in diet or supplemented with 1.0 of oregano oil kg diet-1 (P<0.05).

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