Faisal Masood

Comparative Effecacy Of Different Prophylactic Measures Against Cocidiosis In Broilers - 2000

The study was designed to look into the comparative efficacy of different prophylactic measure against coccidiosis in broilers. One hundred and fifty, day old broiler chickens were reared under controlled conditions. They were equally divided into five groups, on day 1, i.e. A, B, C, D and E. Group 'A' was kept as uninfected, unmedicated control whereas all other test groups B, C, D and E were infected with 30,000 sporulated virulent oocysts. Group 'B' acted as infected and unmedicated control at day 20 and 30 of age. Group 'C' acted as infected and treated with Diasul-S at the rate of 1/2 gm/lit of drinking water for 3 days and group 'D' was treated with coxicure A-K at the rate of 1/4 gm/lit drinking water for 3days. The birds of group E received locally prepared Eimeria tenella vaccine (ETV) on day 3 and 10 of age of birds.
No coccidiosis in the birds of group A and E was noted through out the experiment. The oocysts per gram (OPG) of faeces in group A and E was nil Members of group 'B' showed the highest counts than any other group. The birds of group 'C' and 'D' showed the moderate counts but towards the completion of experiment, the OPG counts gradually reduced in both groups.
Weekly average weight gain record showed that average weight gain by the birds of group 'A' were the highest as compared with all other groups. The average weight gain of group E showed the second highest weight gains. The members of group 'B' showed the lowest weight gains while the members of groups 'C' and 'D' were ranked as 3rd and 4th in weight gains. The weight gains observed in groups A, C, D and E as compared with groups B were significantly higher (PO.O5) N. P.. In groups 'A', 'C' and 'E' the morbidity was nil. While in groups 'B' 30% morbidity was observed. Group 'D' showed low morbidity and one bird died due to coccidiosis.
The best feed conversion ratio (FCR) was observed in groups 'A' and followed by groups 'E', 'C' and 'D'. The feed conversion ratio in groups 'C' and 'D' was equally good. Worst feed conversion ratio was observed in group 'B'.



Department of Parasitology

0740,T


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