Document Type : Research Paper
Authors
1 Dr.Mahdi Hedayati. DVM&DVSc Avian/Poultry Health and Diseases University of Tehran. Associate Professor of poultry disease; Department of Animal Science, Faculty of Agricultural Sciences, Malayer University, Malayer, Iran. mobile
2 malayer
3 Assistant Professor, Department of Pathobiology, Faculty of Veterinary Medicine, Buali Sina Hamedan University, Hamedan, Iran.
4 Animal science,malayer university
Abstract
In this research, 160 one-day-old broiler chickens of Arian strain broilers with an initial weight of 38 g were used in the form of a completely randomized design and as a factorial experiment in 4 experimental groups and 4 replications and each replications consisted of 10 chicks. The experimental groups included control, control with 200g/ton Diclazuril, control with 500g/ton Amprolium and control with 1000g/ton Herbomix R. On the 21st day of rearing, 0.5 cc of the mixture containing (10,000 sproule oocysts of Eimeria tenella, Eimeria acerulina and Eimeria maxima) was fed as an oral inoculation, and sampling was done on the 28, and 35 d. In the examination of performance traits before challenge with Eimeria oocysts, no significant difference was seen between different experimental groups. After the challenge in 3 weeks, the lowest amount of FCR and the highest weight were observed in the groups challenged with amprolium and without challenge in the Herbomix R group, respectively(P < 0.05). The lowest spleen weight and the highest ileum length were seen in the groups under challenge and without challenge with Herbomix R (P < 0.05). During the growth period, the highest scores of duodenal and ileum injuries were observed in birds that consumed control diet and diet containing diclazuril, respectively(P < 0.05). The colony count from the cecum, it was found that Herbo R significantly reduced the population of coliform and E. Coli during this period(P < 0.05). In general, the use of Herbomix R has reduced the intestinal microbial population.
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