Objective: Gastrointestinal (GI) parasitic infection is a prime cause of failures in sheep production. This study was conducted to ascertain the prevalence of gastrointestinal (GIT) helminths of sheep in Sherpur district, Bangladesh. Besides, prevalence of helminthiasis in sheep also assessed considering age, sex, nutritional condition and rearing system. Materials and methods: In total, 106 rectal fecal samples of sheep were randomly collected and were examined for the presence of ova by using direct smear and Stoll's ova counting techniques during July to October, 2016. Eggs were identified on the basis of its size, morphology and other landmark features. Results: Out of 106 samples, 67.9% (n=72/106) revealed the presence of ova of different helminths. The prevalence of helminth infection was associated with Fasciola gigantica (11.3%; n=12/106), Paramphistomes (13.2%; n=14/106), Schistosoma indicum (3.8%; n=4/106), Moniezia sp. (3.8%; n=4/106), Strongyle-type (24.5%; n=26/106), hook worm (6.6%; n=7/106), Strongyloides sp. (12.3%; n=13/106) and Trichuris sp. (1.9%; n=2/106). Egg count per gram (EPG) was calculated which was ranged between 100 and 600. Parasitic counts in lambs, young and adult showed no significant variations (P=0.511) from one other. Infection was significantly (P=0.04) higher in poor body conditioned sheep (76.3 %) as contrasted to normal body conditioned sheep (57.4%). No significant variation (P=0.601) was noticed in infection rates between sexes. Females displayed a higher infection (70.0%) as compared to males (65.2%). In rearing system, the result was found statistically insignificant (P=0.247). Conclusion: Utterly, GI helminths are endemic at great levels among sheep in the study area. Also, their infestation differs within various age groups, sexes, nutritional condition and rearing system of sheep.

Gastrointestinal (GI) parasitism is anegregious problem in small ruminant production system due to is impact on growth and associated cost of control measures. An epidemiological study was conducted to investigate the prevalence of gastrointestinal parasites of small ruminants from different areas of Madhupur, Tangail. The stool samples were collected from a total of 426 goats and sheep from study areas. Specimens were subjected to Stoll's ova counting technique and the overall prevalence of gastrointestinal parasitic infection was found 63.4%. Overall prevalence of nematodes, cestodes, trematodes and protozoa was 52.11%, 2.11%, 36.62% and 10.33%, respectively. The prevalence of parasites were variable with Fasciola spp. (24%) and Balantidium spp. (6.34%). Parasitic ova counts in male and female exhibited no significant variations (p>0.05) between them. The infection was significantly higher (65.11%) in adult than in young (58.09%). No significant (p>0.05) variation was observed in infection rates between goats (64.09%) and sheep (60.67%). Seasonal variation was found significant between rainy (72.44%), winter (56.72%) and summer (61.82%) seasons. Animals with poor body conditions (74.67%) were mostly affected compared to those with moderate (62.38%) and good (39.00%) body conditions. Further attempt is necessary for a structured surveillance and monitoring of GI parasites to formulate effective control measures.

No abstract

ÖzAmaç: Bu araştırmada mezbahada kesilen domuzlarda postmortem muayene sonrasında böbreklerinde kurt varlığı patolojik ve prevalans olarak değerlendirildi. Gereç ve Yöntem:Mezbahalardan domuzların iç organlar toplandı. Böbrekler, peri-renal yağlar, üreterler, akciğerler, karaciğerler ve lenf yumruları makroskobik ve mikroskobik lezyonlar yönünden incelendi. Bulgular: 76 domuzun 16 (%21)'sının enfekte olduğu belirlendi. Böbrek korteksi, perirenal yağlar, üreter ve böbrek pelvisinde olgun parazitlerin varlığı belirlendi. Makroskobik olarak kanlı-şişkin ve yüzeyinde krem-beyaz renkte odaklar bulunan böbrekler gözlendi. Böbrek çevresi yağ doku ve iliş-kili diğer dokularda nekrotik odaklar ve kanlı alanlar tespit edildi. Histopatalojik incelemede böbrek paranşim dokuda yoğun eozinofil infiltrasyonu gözlendi. Ayrıca, nefritisle iliş-kili nötrofil ve mononükleer hücre varlığı belirlendi. Birçok vakada perirenal dokuda gömülü olarak parazit parçaları gözlendi.Öneri: Domuzlarda böbreğin normal yapısının bozulmasın-da, böbreklerde görülen kurtlar ciddi bir problem oluştur-maktadır. Anahtar kelimeler: Domuz, böbrek kurdu AbstractAim: Prevalence and pathologic aspects of kidney worm infection in indigenous pigs were described after post-mortem examination. Materials and Methods:Viscera of the pigs from the slaughter houses were collected. Kidneys, peri-renal fats, ureters, lungs, liver and mesenteric lymph nodes were examined for both gross and microscopic lesions. Results:Of the 76 pigs 16 (21%) were infected with the worm. Adult parasites from renal pelvis, ureter, peri-renal fats and from renal cortex were recovered. Grossly, the affected kidneys were swollen, congested and marked with creamy-white necrotic foci visible from the surface. Peri-renal adipose and connective tissues were also congested and marked with necrotic foci. Histopathological studies revealed massive infiltration of the renal parenchyma mainly with eosinophils, however, some neutrophils and mononuclear cells were also detected, suggesting interstitial nephritis. In most of the cases, cross-sections of embedded parasites were observed in peri-renal tissues. Conclusion:Swine kidney worm is a serious problem in pig that causes severe distortion of renal normal architecture.

Background: Balantidium coli, is a common -opportunistic protozoa of man and animals which causes gastroenteritis. A study was conducted to ascertain the prevalence of balantidiasis in cattle and pig irrespective of age and sex. Methods: In total, 200 faecal samples (150 cattle and 50 pigs) were collected during July to December, 2016 in Mymensingh district, Bangladesh and Modified Stoll’s Ova dilution technique was used to screen the faecal samples for B. coli under microscope. The cysts or trophozoites of B. coli were identified based on the morphological features using standard keys. Results: B. coli cysts and/or trophozoites were detected in 103 samples (51.5%), where comparatively high prevalence was observed in cattle (54.7%) than pig (42.0%). Prevalence of balantidiasis was significantly high in adult cattle (70.4%) compared to that of young (40.5%) and calves (31.3%) while the piglet (65.0%) showed high prevalence than the grower (31.3%) and adult (21.4%). In cattle, high rate of infection was recorded in female (58.8%) than male cattle (45.8%) which was statistically insignificant. On the other hand, high rate of infections was recorded in male pigs (54.5%) than female pigs (32.1%). Conclusion: In conclusion, the present study revealed high circulation of B. coli in cattle and pig in Mymensingh district, which poses potential threats to both animal and public health.

No abstract

Visceral leishmaniasis (VL) is the second largest parasitic killer of human in the world after malaria which is responsible for an estimated 500,000 new cases of VL in each year with 8-10% mortality. The parasite is transmissible to humans and animals by the bite of phlebotomine sand fly. The clinical manifestations are highly diverse, humans and dogs are naturally infected, and the diseases are associated with several risk factors, yet to understand. The aims of this study were to apply traditional and molecular detection tools and more emphasis was given to identify goat as a carrier of visceral leishmaniasis. To demonstrate the promastigote and amastigote phases of Leishmania in tissues, traditional impression smear staining technique was used. For the confirmation of the species of Leishmania involved specific technique like polymerase chain reaction (PCR) was applied. A total of twenty goats were investigated and samples were tested using impression smear staining, histopathology and PCR. Blood smear and impression smears were prepared from spleen, liver, bone marrow and stained with Giemsa's stain. Using Giemsa's staining out of twenty goats investigated, six (6/20) were found to contain promastigote and amastigote stages of Leishmania in their visceral organs. Histopathological examination from the liver section of suspected goats showed degeneration, necrosis and non specific fibrous connective tissue proliferation compared to non-reactive goats. There was accumulation of macrophages in lymphoid follicles of spleen in five suspected goats. A highly sensitive and specific primers were used in PCR amplification with the extracted DNA from liver and spleen of suspected six goats. Results of PCR showed that two of them were generated 145bp amplicon selective for L. donovani in their liver and spleen. Leishmaniasis has a great public health significance and the protozoa found in goats of Fulbaria Upazilla may possess threat for transmission in human and other animals, require further investigation.

No abstract