Evaluation de l'efficacité des extraits aqueux de graines de papaye (Carica papaya L.) dans le traitement de la coccidiose caecale à Eimeria tenella chez le poulet de chair

Evaluation of the Efficiency of Aqueous Extracts of Papaw Seeds (Carica papaya L.) for the Treatment of Caecum Eimeria tenella Coccidiosis in Broiler Chicken. A study was carried out to study the efficiency of aqueous extracts of papaw seeds for the treatment of caecum Eimeria tenella coccidiosis in broiler chicken. Eighty eight 37-day old caged ISA15 VEDETTE broiler chickens were inoculated with a suspension of 3500 ± 1050 E. tenella oocysts/ml. The birds then divided into 4 groups of 22 birds received 10 days later either 0 (D0 dose), 10 (D10 dose), 20 (D20 dose) or 40 g/l (D40 dose) of aqueous extracts of papaw seeds. Mortality rates of 45.5%, 34.8%, 18.2% and 9.1% were recorded for D0, D10, D20 and D40 groups respectively. As compared to infestation rate before treatment, the reduction rate of the number of oocysts/g of faeces was respectively 6.6%, 42.8%, 73.6% and 91.8% for D0, D10, D20 and D40. Average daily weight gain was 42.7 g, 47.8 g, 69.8 g and 86 g for treatments D0, D10, D20 and D40, respectively while average weekly feed efficiency ratio values of 3.9, 4.1, 2.4 and 1.9 were respectively recorded for D0, D10, D20 and D40 treatments. Aqueous extracts of papaw seeds seemed to be efficient in the treatment of caecum E. tenella coccidiosis in broiler chickens.