The effect of heated floor on the outcome coccidiosis in broilers
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Coccidiosis is the most common protozoan disease in poultry farms around the world and causes serious economic losses. The purpose of this study was to determine the effect floor heating on the outcome Eimeria maxima infection in broilers. A total 80 broilers were grown for 4 weeks. All birds were fed with identical granular food without anticoccidial drugs and antibiotics. Broilers were divided into 2 equal groups of 40 heads each. The first group (experimental) was placed on heated plates with a small wood shavings layer; the second group (control) was placed on wood shavings without floor heating. All 7-day old broilers were experimentally infected with E. maxima 300 oocyst/bird culture orally. The extensity and intensity of infection in the feces was determined every 3 days, after infection. Than 10 broilers at the age of 38 days were spontaneously selected from each group for blood sampling and for clinical and biochemical blood analysis. These broilers were sacrificed to detect pathological changes in the intestine. The extensity and intensity of coccidiosis was high in broilers, grown on a heated floor. Extensity was 100%, intensity—52,500 oocysts/g at the age of 26-days-broilers. Broilers became more resistant to E. maxima infection on the heated floor. Despite the high intensity of infection, acute coccidiosis and death were not detected. In addition, lesions in the intestine and changes in blood of broilers from experimental group differed slightly from the control group. The results showed that heated floor had a positive effect on the organism of broilers infected with E. maxima.
KeywordsBroilers Coccidiosis Eimeria maxima Extensity Intensity Heated floor
The author thanks the staff of Department of the Technology of Poultry Production Federal Scientific Center “All-Russian Research and Technological Poultry Institute”, Sergiev Posad for their help in organizing and conducting the experiment.
EOK made a significant contribution to the concept and development, conducted data collection, statistical analysis and manuscript preparation. RTS read and approved the final version of the manuscript.
This study was supported by All-Russian Scientific Research Institute of Fundamental and Applied Parasitology of Animals and Plants named after K.I. Skryabin. And research was conducted within the State Assignment to ARSRIP (Project 0578-2019-0009).
Compliance with ethical standards
Conflict of interest
The authors declare that they have no conflict of interest.
The experiment was carried out according the rules adopted by European Convention far the Protection at Vertebrate Animals used for Experimental and other Scientific Purposes (ETS 123). Strasburg, 1986.
All the authors gave their informed consent prior to their inclusion in the study.
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