Browsing by Author "Akyol, Volkan"

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Effect of age, sex and season on the prevalence and intensity of helminth infections in domestic pigeons (Columba livia) from Bursa Province, Turkey
(Akademiai Kiado ZRT, 2005) Senlik, Bayram; Gülegen, Ender; Akyol, Volkan; Uludağ Üniversitesi/Veteriner Fakültesi/Parazitoloji Anabilim Dalı.; 0000-0003-2964-2245
The one-year study reported in this paper was carried out from April 2002 to March 2003 in domestic pigeons (Columba livia) of Bursa Province (Turkey) to determine the occurrence of helminth species and to evaluate the effect of host age, sex and season oil their prevalence and intensity. A total of 100 (3 1 Young and 69 adult) domestic pigeons were necropsied and examined. The results of necropsies revealed that 74 pigeons harboured helminth infections. Three helminth species were identified: Baruscapillaria obsignata (63%), Ascaridia columbae (42%) and Raillietina echinobothrida (1%). There were no significant differences in the prevalence of B. obsignata and A. columbae by host age and sex. Significantly the highest prevalence rate of A. columbae was observed in the autumn months, but there was no significant difference in the seasonal prevalence of B. obsignata. The mean intensity of B. obsignata and A. columbae was higher in adults than in young pigeons but it did not differ significantly between the two sexes. The highest mean intensity rate of B. obsignata was observed in the autumn, while there was no significant difference for A. columbae with regard to season. From the data obtained In this Study it can be concluded that in regions with similar climatic conditions as those ill the present study area, pigeon breeders Should be cautioned especially of B. obsignata and A. columbae infections of adult pigeons in the autumn months.
Güney Marmara Bölgesinde koyunlarda helmint türlerinin yayılışı
(Uludağ Üniversitesi, 2000) Öncel, Taraneh; Akyol, Volkan; Uludağ Üniversitesi/Sağlık Bilimleri Enstitüsü/Parazitoloji Anabilim Dalı/Helmintoloji Bilim Dalı.
Bu araştırma Ocak 1998-Nisan 1999 tarihleri arasında Güney Marmara Bölgesinde koyunlarda helmint türlerinin yayılışını belirlemek amacıyla yapılmıştır. Araştırmada 30 genç (1 yaş altı) ve 20 erişkin (1 yaş üstü) olmak üzere toplam 50 koyunun otopsisi yapılmış, ayrıca 260 koyunun dışkısı muayene edilmiştir. Otopsisi yapılan 50 koyunun 43'ünün (% 86) çeşitli helmint türleri ile enfekte oldukları belirlenmiş, dışkı bakısı yapılan 260 koyunun 208'inde (% 80) helmint enfeksiyonları tespit edilmiştir. Otopsi bakılarında 2 trematod, 3 cestod ve 22 nematod olmak üzere toplam 27 helmint türü tespit edilmiştir. Bunlardan Dicrocoelium dendriticum % 26, Paramphistomum cervi % 4, Moniezia expansa % 18, Kist hidatik % 30, Cysticercus tenuicollis % 2, Gongylenema pulchrum % 8, Dictyocaulus filaria % 8, Cystocaulus ocreatus % 28, Haemonchus contortus % 38, Ostertagia circumcincta % 78, Ostertagia ostertagi % 30, Ostertagia trifurcata % 20, Trichostrongylus axei % 46, Trichostrongylus capricola % 6, Trichostrongylus colubriformis % 18, Trichostrongylus vitrinus % 34, Nematodirus abnormalis % 18, Nematodirus filicollis % 32, Nematodirus spathiger % 12, Bunostomum trigonocephalum % 14, Chabertia ovîna %28,Oesophagostomum venulosum %14, Trichuris ovis %28, Trichuris skrjabini % 6, Trichuris discolor % 2, Trichuris globulosa % 8, Strongyloides papillosus % 2 tespit edilmiştir.Enfekte hayvanların 18'i (%41.8) nematodlarla, 4'ü (% 9.3) nematod+trematodlarla, 1 2'si (% 27.9) nematod+cestodiarla, 9'u (% 20.9) nematod+trematod+cestodlarla enfekte bulunmuştur. Enfekte hayvanlardan 6373 adet trematod, 214 adet cestod ve 46367 adet nematod olmak üzere toplam 52954 adet helmint toplanmıştır. Dışkı muayene sonuçlarına göre D.dendriticum % 30, Fasciola spp. % 0.77, Paramphistomum spp. % 3.1, Moniezia spp. % 8.8, Trichostrongylus spp. 61.5, Trichuris spp. % 4.6 oranlarında saptanmıştır. Protostrongylidae spp. enfeksiyon oranı % 33.8 olarak belirlenmiştir. Tespit edilen türler ve görülme sıklıkları; Protostrongylus rufescens % 16.92, Muellerius capillaris % 12.69, Cystocaulus ocreatus % 11.15, Dictyocaulus filaria % 2.30 olarak belirlenmiştir.
Helminth parasites found in hedgehogs (Erinaceus concolor) from Turkey
(Elsevier, 2010-10-01) Çırak, Veli Yilgör; Şenlik, Bayram; Aydoğdu, Ali; Selver, Melih; Akyol, Volkan; Uludağ Üniversitesi/Veterinerlik Fakültesi/Klinik Öncesi Bilimler Bölümü.; Uludağ Üniversitesi/Mustafakemalpaşa Meslek Yüksekokulu.; 0000-0003-2964-2245; 6602404057; 9332720500; 6701819349; 22981630000; 8943998500
Hedgehog diseases are becoming important issues for veterinary surgeons due to growing interest in this animal species among pet owners and an increase in cases of rescued hedgehogs requiring veterinary care. A parasitological study was carried out on hedgehogs (Erinaceus concolor) in the Bursa province of Turkey, found dead mainly due to road casualties, to determine their helminth parasite burden. The detected helminths and their prevalences were as follows: Physaloptera clausa (72.2%), Crenosoma striatum (55.5%), Aonchotheca erinacei (55.5%), Hymenolepis erinacei (55.5%), Nephridiorhynchus major (50%) and Eucoleus aerophilus (22.2%). The number of parasites in infected animals varied from 1 to 203. The highest mean intensity of infection was observed with C striatum, and the lowest was observed with N. major. The mean abundance of different species varied from 0.7 to 41.8, where E. aerophilus and C striatum had the lowest and highest abundance, respectively. This study represents the first time N. major and E. aerophilus have been reported in hedgehogs in Turkey. The presence of E. aerophilus and its potential role as a zoonotic agent are discussed.
Bir keçinin çene kasları arasında Coenurus cerebralis (Metacestoda) olgusu
(Uludağ Üniversitesi, 1990) Coşkun, Şevki; Demir, Semra; Akyol, Volkan; Yıldız, Bahri; Uludağ Üniversitesi/Veteriner Fakültesi/Parazitoloji Anabilim Dalı.; Uludağ Üniversitesi/Veteriner Fakültesi/Anatomi Bilim Dalı.
Uludağ Üniversitesi Veteriner Fakültesi Anatomi Bilim Dalı'nda diseke edilen bir kılkeçisinin çene kasları arasından çıkanlan kistin mikromorfolojik incelemesinde, kist içerisindeki protoscolexlerin yerleşim düzenleri dikkate alınarak Coenurus cerebralis olduğu tanımlanmıştır.
Prevalance and intensity of Haemoproteus columbae in domestic pigeons
(Indian Veterinary Journal, 2005-09) Şenlik, Bayram; Güleǧen, Ender; Akyol, Volkan; Uludağ Üniversitesi/Veteriner Fakültesi/Parazitoloji Anabilim Dalı.; 0000-0003-2964-2245; 9332720500; 6505895809; 8943998500
Haemoproteus columbae is a red-blood cell protozoon parasite of pigeons and doves. The pathogenicity of H. columbae is generally low and adult birds usually show no evidence of disease (Soulsby, 1986; Rommel et al., 2000). However, an acute form of the infection-has been reported in pigeon nestlings, in which heavy mortality has been recorded (Soulsby, loc. cit.). The frequency of H. columbae is considerably high in. pigeons worldwide (Mushi et al., 2000). There are very limited number of studies on blood parasites of pigeons in Turkey (Gulanber et al., 2002). This study was therefore designed to determine the prevalence and intensity of this parasite in domestic pigeons fro m Bursa region, Turkey during a one year period. Materials and Methods In this:study, one hundred (31 young 69 adult, 45 male, 55 female) domestic pigeons reared in pigeon houses in 10 districts of Bursa, Turkey were exmined for blood parasites between April 2002 and March 2003. Blood samples were obtained from the right wing vein and thin smears in duplicate were made immediately. The air dried blood smears were subsequently fixed with methanol and stained with Giemsa solution (5%, pH 7.2). The slides were examined microscopically at a magnification of x1000. Intensity was expressed as the number of parasitized red blood cells per 200 randomly selected fields. The parasite species was identified as described by Bennett and Peirce (1990). Chi-square or Fisher's exact was used to compare the prevalence of the parasite I among the age, sex and season groups. All statistical calculations were performed using the Graphpad Instat software V2.02. programme (LSU Medical Center). Results and Discussion In this study H. columbae was the only haemoparasite, with a prevalence of 21 per cent, found in blood smears of the pigeons examined. This rate is much lower than the prevalence. rates reported. In Turkey (Gicik, 2001; Gulanber et al., 2002.) and other countries (Mushi et al. and Sol et al., 2000) in domestic or wild pigeons. The low prevalence of H. columbae in pigeons in this study might be due to the different abundance of vectors in the habitats of domestic pigeons or due to a possible difference in susceptibility. Although-higher prevalence was observed in young pigeons (25.8%) compared to adult pigeons (18.8%) there was no significant difference between the age classes. Sol at al. (loc. cit.) and Gicik (,loc. cit.) found higher prevalence of H. columbae in adult pigeons than in youngs. No difference in the prevalence of H. columbae could be found between males (20%) and females (21.8%). Gicik (loc. cit.) found higher prevalence of H. columbae in wild female pigeons than in males, while. in their study Sol at al. (loc. cit.) stated that there is no difference between male and female in prevalence of H. columbae. Because prevalence largely depends on exposure to vectors, in our. study the absence of sex-related differences in prevalence suggests that the sexes were equally exposed to vectors. This agrees with the fact that, in pigeons, both sexes use the habitat in the breeding duties in a similar fashion. The highest (44%) infection rate was observed in autumn (P<0.05, n:27) months. and lowest (12 %) in spring (n:25) and summer (n:25) months; it was 13 % in winter (n:23) months. The highest proportion of youngs with incomplete immunity. in examined pigeons in autumn months may be the causative factor of this situation. This result is in agreement with the study of Klei and Deguisti (1975), who found that the highest infection rates with H. columbae in feral pigeons were observed in autumn and winter months. The intensity of parasitaemia in infected pigeons differed between 1-732 infected cells per 200 fields. The intensity of H. columbae in positive blood smears were as follows: 1-50 infected cells in 52.4%, 51 -100 infected cells in 4.8 %, 101 200 infected cells in 19% and 201-300 infected cells in 19%. Only 4.8% of the positive samples had more than 500 infected cells. Mean intensity of H. columbae in adults was lower than that in youngs. The lower parasite intensity in adults is to be expected if older birds acquire a certain degree of immunity against the parasite. In this study the similarity in the intensity between males and females can mean that both sexes are equally susceptible to parasite H. columbae.
Prevalence of Trichomonas gallinae in pigeons in Bursa Province, Turkey
(Indian Veterinary Journal, 2005-04) Güleǧen, Ender; Şenlik, Bayram; Akyol, Volkan; Uludağ Üniversitesi/Veteriner Fakültesi/Parazitoloji Anabilim Dalı.; 0000-0003-2964-2245; 6505895809; 9332720500; 8943998500
A total of 80 pigeons from Bursa province, Turkey examined for T gallinae. The prevalence of infection was found as 75.78 %. Although a higher prevalence was observed in young pigeons (83.3 %) compared to adults (76.0 %) there was no significant difference between the age classes. No differences in the prevalence of T gallinae could be found between males (77.7 %) and females (79.5 %). Over the whole study period, 2 clinical cases were detected in young pigeons.
Studies on sheep lungworms in Bursa Province of Turkey: Determination of prevalence and relationships between larval output and parasite burden in the lungs
(Zoological Soc Pakistan, 2008-01-01) Girişgin, Oya; ŞENLİK, BAYRAM; GİRİŞGİN, OYA; GİRİŞGİN, AHMET ONUR; Girisgin, Ahmet Onur; Akyol, Volkan; AKYOL, ÇETİN VOLKAN; Bursa Uludağ Üniversitesi/Veteriner Fakültesi/Parasitoloji Anabilim Dalı.; 0000-0003-2964-2245; 0000-0002-0020-2708; B-5286-2017; JRY-1676-2023
This study was carried out to determine lungworm species and their prevalence, evaluate the effect of host age and breed oil the infections and the correlation between faecal larvae counts and adult lung worms counts in sheep in Bursa Province, Turkey. A total of 104 sheep of different age and breed were examined for the lungworm infection. prevalence of infection was 45.1% and 62.5% by coproscopy and necropsy, respectively. The faecal examination and postmortem showed Dictyocaulus filaria (23%; 31.7%), Cystyocaulus ocreatus (24%; 31.7%) and Protostrongylus rufescens (3.8%; 5.8%). Seven (6.7%) and six (5.7%) sheep had mixed infections with two nematode species in necropsy and faecal examinations, respectively. There was a significant difference (p<0.05) between >4 year old and <4 year old age groups. There was no significant difference in the prevalence of lungworm infections in different sheep breeds. Although there was a positive correlation between larval excretion in faeces and lung nematode counts, reliable regression equations could not be established. Therefore, the number of worms in the lungs Could not be deducted exactly from faecal lungworm larvae counts.