The study was conducted to determine the infection rate of helminths in peafowl and to evaluate the comparative efficacy of two different broad spectrum anthalmintics.

For this puiose, eighty seven different breeds of peafowl like Blue peafowl, Java green peafowl, White peafowl, Black shoulder peafowl, Emerald peafowl and Pide peafowl of different ages, both male and female were selected which were present at Lahore Zoo. Faecal samples of 87 birds were collected in clean polythene bags, properly labeled and examined for the identification of helminths in the laboratory of Clinical Medicine & Surgery department, University of Veterinary & Animal Sciences Lahore. Faecal samples were examined by direct smear and centrifugal floatation methods for qualitative examination. For quantitative examination McMaster Egg Counting technique was used.

Moreover, chemotherapeutic trials were conducted by making four groups of birds. Albendazole (Methyl [5-(Prophylthio)-IH-Benzimidazole-2-yl] carbonate) (Selmore Pharma) at the dose rate of O.lml per k.g. of body weight in drinking water and Pyrantel Pamoate (1 Methyl-2-(2[2-thienylj-l, 4, 5, 6-tetrahydropyrimidine, 4, 4-methylenebis (3- hydroxy-2-naphthoic acid) (Pfizer) at the dose rate of O.lml per k.g. body weight oral suspension only once in the experimental trial was used and there percentage efficacy was determined. Drugs were administered orally to each bird using crop needle.

After the collection and laboratory examination of pre-medicated eighty seven faccal samples, the positive birds of different breeds of peafowl were divided in to three equal groups that were A, B and C. Forty nine out of 87 birds were positive for single or mixed infection of Heterakis gallinae, Ascaridia gaul, Davenia pro glotina, Capillaria columbae and Acuaria spiralis with there individual percentage was 36.73%, 26.53%, 6.12%, 18.37% and 12.24% respectively. Out of 49 birds 48 positive birds were divided in groups, each group consisted of 16 birds respectively. Group 'A' consisted of (Blue peafowl, Java green peafowl, White peafowl, Black shoulder peafowl and Emerald Peafowl, Pide peafowl). Group 'B' consisted of (Blue peafowl, Black Shoulder peafowl, Emerald peafowl and White Peafowl, Java green, Pide peafowl). In group 'C' birds included were (Blue peafowl, White peafowl, Pide peafowl and Black shoulder Peafowl, Emerald peafowl). While in group 'D' (White peafowl, Java green peafowl, Pide peafowl
& Blue Peafowl) only uninfected and untreated birds were kept.

Drug therapy was only induced to group A i.e. Albendazole 0.lml/kg body weight and group B Pyrantel pamoatc 0.lml /kg body weight, while infected but untreated birds were placed in group C.

The overall prevalence of gastrointestinal helminths in different breeds of peafowl pre-medicationwas found as 56.32 %. While the healthy birds were 43.68%. Faecal egg counts were again carried out on day 03, 07 and 10 post-medication and percentage reduction of EPG calculated. On day three the percentage efficacy of Albendazole was 44.76%, on day seven 73.01%, and on day ten 94.92% respectively. In the same way percentage efficacy of Pyrantel pamoate on day three was 29.27%, on day seven 50.13% and on day ten 78.34%.

The percentage EPG rise up to 3.75%, 6.24% and 6.99% at day 03, 07 and 10 in untreated group C was observed. While no infection was observed in group D through out the experimental study. In the current study no mortality of peafowl was found so no postmortem examination was conducted. There was no any side effect of Abendazole and Pyrantel pamoate was found in both the groups which were A & B respectively.