A study was carried out to know the prevalence of gastrointestinal parasites in desi fowl in and nearby villages of Gannavaram, Andhra Pradesh for a period of 1 year. Screening of 492 samples comprising faecal samples and gastrointestinal tracts from freshly slaughtered desi birds at local poultry shops and samples from post mortem examinations at NTR College of Veterinary Science, Gannavaram revealed 63.21 % of gastrointestinal parasites. Faecal samples were examined by floatation technique using salt solution and samples positive for coccidian oocysts were sporulated in 2.5 % potassium dichromate solution for species identification. Adult worms were identified after routine processing and mounting. The species identified includes Davainea proglottina, Raillietina cesticillus and Raillietina echinobothrida in cestodes (32.47 %), Ascaridia galli, Capillaria annulata, Heterakis gallinarum in nematodes (39.87 %), Eimeria tenella, Eimeria acervulina and Eimeria necatrix in Eimeria spp. (39.87 %). Ascaridia galli and R. cesticillus and A. galli and Eimeria spp. were common in mixed infection (12.86 %). Ascaridia galli was the more prevalent species. No trematode parasite was identified during the study period. Significant (p = 0.001) relationship between the seasonality and prevalence of gastrointestinal parasites was observed (v2 = 17.46, df = 2). Data revealed high prevalence in rainy season (43.41 %) followed by summer (38.91 %) and winter (17.68 %) seasons for all parasites except for A. galli and C. annulata infections which were higher in summer season. Results indicated high prevalence of gastrointestinal parasites in desi fowl in study area emphasizing the need of improved management practices of backyard poultry.

species are the obligate tissue protozoan parasites of livestock causing clinical and subclinical disease resulting in downgrading of the meat and their products thereby leading to economic losses. The present study reveals the prevalence and distribution of sarcocystosis in water buffaloes () slaughtered at local abattoirs in A.P for a period of 1 year from June 2014 to May 2015. A total of 137 buffalo carcasses were screened grossly and microscopically organ wise viz., esophagus, tongue, heart, diaphragm and intercostal muscles. Out of 137 screened, 91 were infected with an overall prevalence of 66.42 %. Age wise analysis of 89 young male calves aged about 18-36 months old revealed 65.16 % (58/89) and 48 old she buffaloes (5-8 years) showed 68.75 % (33/48). The organ wise prevalence was highest in esophagus (51.82 %) followed by tongue (47.44 %), heart (29.92 %), diaphragmatic muscles (28.46 %) and intercostal muscles (18.24 %), respectively. Morphometric studies revealed the presence of two species, i.e., and infection with a prevalence of 43.79 and 22.62 %, respectively, along with mixed infection rate of 43.06 %. Microscopic studies of showed sarcocyst length/width/cyst wall thickness ranged between 0.31-0.69/0.09-0.12 mm/<1 µm, respectively, and bradyzoites with an average of 6.25 µm length/2.5 µm width. Similarly, cyst ranged between 2 and 8.5 mm/1-3 mm/2-5 µm and bradyzoites with an average of 10 µm length/2.5 µm width. The histopathological studies revealed congestion and degenerative changes of myocytes along with infiltration of mononuclear cells.

A study was carried out on adult albino Wistar laboratory rats to know the incidence of hymenolepiosis, a zoonotic disease which were brought for experiment purpose. Faecal samples of 95 rats examined for parasitic infection by simple floatation technique in which 32 were positive (33.68 %) for hymenolepiosis. Identification of species of Hymenolepis was done based on morphology of egg. The highest prevalence of Hymenolepis diminuta (23.15 %) was recorded followed by Hymenolepis nana (10.52 %). Heavy infection with Hymenolepis in rats draws attention in view of public health importance in contact persons.

A study was conducted to determine the prevalence of microfilariasis and analysis of diagnostic methods in buffaloes at Veterinary Poly Clinic, Gudiwada with relation to season, age and breed for a period of 1 year (March 2011-February 2012.Out of 1,222 blood smears examination, only 123 samples were found positive for microfilariasis with a prevalence rate of 10.06 %. Highest prevalence was observed in monsoon (12.54 %) followed by summer (9.18 %) and least in winter (7.05 %). Buffaloes above 9 years age were at high risk with a prevalence rate of 12.5 %, followed by 3-9 years (10.7 %) and below 3 years age (6.09 %) respectively. Breed wise prevalence of microfilariasis was higher in graded murrah buffaloes 10.87 % compared to non-descripts (6.19 %). Three commonly used diagnostic techniques viz. Modified Knott's Technique, thick blood smear examination and wet film examination were done to evaluate comparative sensitivity/efficacy. Among these techniques, 100 % efficacy was observed in Modified Knott's Technique and 86.99 % in thick blood smear examination followed wet film examination 78.04 % respectively.

Faecal (2,250) and blood samples (1,350) of dogs received from Teaching Veterinary Clinical Complex (TVCC), Gannavaram, Veterinary Hospitals in and around Krishna district and nearby Krishna, Andhra Pradesh during last five years (January 2014 to December 2018) were examined to determine the prevalence of protozoan parasites. Faecal samples were analyzed by direct smear and floatation technique and blood samples after Giemsa's staining. The overall prevalence of protozoan parasitic infections including intestinal (15.60%) and haemoprotozoan (6.22%) infections was 12.10% (n=435). Six genera of protozoan parasites namely Cystisospora, Entamoeba, Ehrlichia, Trypanosoma, Babesia and Hepatozoon were identified. The most prevalent species was Cystoisospora (14.04%) and Hepatozoan canis (0.67%) was the least prevalent species. A significant relationship between age group, breed and prevalence of protozoan parasitism was observed. The prevalence of gastrointestinal and haemoprotozoan parasites was significant during winter and rainy seasons, respectively. Sex did not influence the overall prevalence of protozoan parasites.