Phytochemical characterization, antioxidant activity and anthelmintic effect of Carica papaya L. (Caricaceae) seeds in Lohman Brown cockerels

Helminths are diseases which exist frequently with the poultry. To cure these parasitosis, breeders use very often synthetic products which are source of food poisoning for the consumers. However, past studies showed that some plants are known to their anthelmintic properties. For sanitary biosafety, the current study aimed to gauge helminthic capacity of papaya seed and established the relationship between phytochemical composition and anthelminthic activity. Qualitative and quantitative phytochemical analyses were carried out to identify phytoconstituents endowed with anthelmintic activity. Bioguided analyses were carried out in three months upon 260 Lohmann Brown cockerels which were divided in 5 batches: T-, T+, GP1, GP2, and GP. Cockerels of batches GP1, GP2 and GP3 received in their food papaya seed powder (5%) per month, respectively for one, two and three days. Batch T- did not receive any treatment but cockerels of batch T+ were treated by Levamisole (25%) on day per month. Phytochemical tests revealed the presence of alkaloids, reducing compounds, flavonoids, tannins, proteins and coumarins as chemical group in the seeds. Bioguided analyses proved that the reduction rates of number of EPG in batches T+, GP1, GP2, et GP3 are respectively: 90.08; 28.00; 53.00, and 90.35, but it was negative in batch T-. Batches T+ and GP3 presented higher average weekly gains, while average cumulative weight gains were identical for batches T+ and GP3. Nevertheless, it was batch GP3 that provided the lowest consumption index. In fact, cockerel treatment with papaya seed present almost the same anthelminthic efficacy as Levamisole.