Study on lesion scoring indices following use of maduramycin in broilers challenged with mixed Eimeria

Subject Areas : Journal of Large Animal Clinical Science Research(JLACSR)

Received: 2021-07-17 Accepted : 2021-07-17 Published : 2010-12-22

Keywords: broilers, Coccidiosis, Lesion scoring, Maduramicin,

Abstract :

Coccidiosis is one of the important parasitic diseases in poultry industry. Diagnosis in subclinical cases is difficult, and usual OPG measurement method is not valuable for correct assessment of infected farms. This study tries to achieve the new factors for assessment of lesion scores via lesion scoring parameters along with maduramycin coccidiostat administration.75 Ross strain broiler chicks were randomly divided into 3 groups including: negative control group, positive control group and maduramycin test group OPG rate evaluated at the day of 23 in 3 groups, and then 5 chicks were randomly sacrificed in each group and lesion score indices plus chick weight, the hole weight of gastrointestinal tract ,length and weight of small intestine were examined. Tukey and Sheffer statistical tests, Pearson correlation and 't' tests were used for analysis of results.  OPG rate in maduramycin test group were significantly decreased in comparison with positive control, also the weight mean of positive control were significantly decreased in comparison with negative control and maduramycin test group (P < 0.001) .The mean of lesion scores in maduramycin group were significantly decreased in comparison with positive control. With regard to results, two indices of gut looseness, and gut mucosal destruction rate should be considered for lesion score evaluation and necessity of effective anticoccidial drugs administration is recommended by farmers in prevention and control of disease.

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