Spreading of Helminths Detected in Private Poultry Farms by Regions of Azerbaijan

Of the helminths detected during these studies, the intensity of the invasions with Ascaridia galli in the Aran region, Heterakis gallinarum — on the Absheron, Syngamus trachea, Capillaria obsignata — in Lankaran-Astara, Raillietina tetragona — in Kuba-Khachmaz, and on the basis of studies carried out during autopsy of carcasses the intensity of invasions with heterakises, railietins in the Aran region, Ascaridia in Kuba-Khachmaz, and with singamuses and capillaries in Lankaran-Astara was high. Along with the fact that in the summer period there was observed high extensiveness and intensity of invasions among the studies carried out by seasons of the year, the prevalence of Ascaridia, heterakises, singamuses in Sheki-Zagatala region, railietins in Kuba-Khachmaz, and capillaries in Lankaran–Astara in comparison with other regions was high. The intensity of the invasions with Ascaridia in Kuba-Khachmaz, heterakises, singamuses, railietins, and capillaries in Aran came up to a high level.

Parasitism by Syngamus trachea in Blue-and-Yellow Macaw (Ara ararauna)

Background: Ara ararauna is widely distributed in South America and frequently affected by anthropogenic activities and environmental pressures such as illegal bird trafficking, and habitat loss. Also some endoparasites can threaten their health, and cause their death, or prevent the reintroduction of the animal to its natural environment. The objective of the present work was to report the occurrence of parasitism by Syngamus trachea in an Ara ararauna.Case: An adult, 900-gram female Ara ararauna from a project for the rehabilitation of the Brazilian fauna was kept in a collective nursery together with 12 specimens of the same species. Their diet was composed of typical fruits of the region, which were offered twice a day, and water ad libitum. The macaws had no previous history of anthelmintic treatment. The specimen evaluated presented progressive weight loss, constant sneezing, and reduced appetite for seven days. During physical examination the animal presented apathy, lethargy, spiked feathers, body condition score of 1/4, frequent sneezing, and inspiratory dyspnea. After this examination, the bird died, and the necropsy was performed. The postmortem findings were pale periocular, oral, and cloacal mucosae, cachexia, and presence of parasites of round shape, reddish color, with length of approximately 0.5 cm, in the proximal portion of the trachea. Another parasite with the same characteristics, but smaller in size, showing Y shape was found in the body. The trachea also showed colorless mucus and petechial hemorrhages in the proximal and middle portions of the mucosa. These parasites were subjected to morphological analysis in the Laboratory of Microscopy of the University Center of Triângulo and were identified as Syngamus trachea.Discussion: The diagnosis was based on morphological analysis of the parasite. This parasite can be transmitted through infected worms, which are paratenic hosts of S. trachea. Chickens may also be parasitized by S. trachea; consequently, they may have contributed to the dispersion of eggs of S. trachea in the environment, since they had free access to the entire rural property. There is a positive correlation between parasitism by S. trachea and body condition loss in other bird species that may be connected to the lowering of its feed conversion and food consumption. The mechanical irritation caused by parasites in the tracheal lumen was probably the cause of the clinical manifestations involving the respiratory tract, which were characterized by dyspnea and sneezing. Moreover, petechial hemorrhages, increased mucus production within the trachea, and paleness of the visible mucosa are alterations probably caused by traumatic action and the hematophagous habit of the nematode in the trachea of the bird. Climatic and soil conditions can favor the maintenance of S. trachea eggs and larvae and the permanence of the verminosis in the environment. Therefore, a strict sanitary control of the animals in conservation projects is necessary, with a routine of coproparasitological examinations. Although the actual epidemiological status of endoparasites in free-living Ara ararauna is unknown, deworming protocols for birds intended for release in natural environments are different from those used in specimens under observation. Birds that will return to free life receive antiparasites only in cases of clinical symptomatology associated with positive tests of verminoses to maintain the natural resistance of the birds to the parasites found in their natural environment. The results of this report, showing the occurrence of infection of Ara ararauna by Syngamus trachea denotes the importance of periodic coproparasitological exams.

Prevalence of endoparasitic infections of birds in zoo gardens in Serbia

This report represents the prevalence of endoparasitic infections of birds in zoological gardens in Serbia. Coprological examination conducted during 2015 and 2016, involved samples from 318 individual birds belonging to 112 species, in three zoo gardens (Belgrade, Palić and Bor). Individual faeces samples were analysed by the flotation method in salt solution. The presence of endoparasites was established in 51.96% (Belgrade), 46.16% (Palić) and 16.66% (Bor) of the tested birds. We diagnosed coccidian oocysts, eggs of Capillaria spp, Heterakis spp, Trichostrongylus spp, Ascaridia spp, Syngamus trachea and eggs of yet unidentified trematode. There were no detection of parasites from the class of cestodes. Prevalence of infection with coccidia, depending on location, was in the ranges between 8.33% and 32.84%, capillariosis 2.77% and 29.41%, heterakiosis 2.56% and 12.74%, trichostrongylidosis 5.55% and 25.64%, askaridiosis 10.25% and 10.78%, syngamosis 2.94% and trematodes of unknown etiology 2.45%. Coinfections with two or three parasitic species were detected in Belgrade and Palić Zoo Gardens, while quadruple infection was established in birds of Belgrade Zoo Garden. Obtained results can be used in establishing programs for health protection of endangered bird species.

Helmintos en Pelecanus thagus y Spheniscus humboldti de la costa de Lima, Perú

En junio de 2012, a raíz de un fenómeno marino que produjo mortandad de varias especies de aves marinas, se estudiaron los endoparásitos en dos pelícanos (Pelecanus thagus) y dos pingüinos (Spheniscus humboldti) hallados muertos en la playa del distrito de Chorrillos, Lima-Perú. Se realizó la obtención de helmintos del tracto digestivo en ambas especies aplicando el método de Travassos. Fueron identificados en Pelecanus thagus los nematodos Contracaecum rudolphii y Syngamus trachea, el cestodo Tetrabothrius sp, el trematodo Galactosomum puffini y el acantocéfalo Corynosoma sp. En Spheniscus humboldti, el trematodo Cardiocephaloides physalis y los nematodos Contracaecum pelagicum y Cyathostoma phenisci. Syngamus trachea, Galactosomum puffini, Corynosoma sp y Contracaecum pelagicum son considerados nuevos reportes en Pelecanus thagus en el Perú. Además, Spheniscus humboldti puede ser considerado nuevo hospedero de Cardiocephaloides physalis y Cyathostoma phenisci.

STUDI NEMATODA PADA AYAM PETELUR (Gallus gallus) STRAIN ISA BROWN DI PETERNAKAN MANDIRI KELURAHAN TEGAL SARI, KECAMATAN GADING REJO, KAB. PRINGSEWU, LAMPUNG

Ayam petelur merupakan ayam yang khusus dipelihara untuk diambil telurnya. Kandungan protein telur yang tinggi serta harganya yang terjangkau membuat ayam jenis petelur ini banyak dibudidayakan. Namun dalam pembudidayaannya masih sering terdapat kendala, salah satunya disebabkan oleh berbagai nematoda yang menyebabkan berbagai macam infeksi. Penelitian ini telah dilaksanakan pada bulan April 2017 sampai bulan Juni 2017. Pengambilan sampel dilakukan di Peternakan mandiri, di Kelurahan Tegal Sari, Kecamatan Gading Rejo, Kabupaten Pringsewu, Provinsi Lampung dan identifikasi dilakukan di Balai Veteriner Lampung. Tujuan penelitian ini adalah untuk mengetahui jenis telur nematoda dan mengetahui nilai prevalensi parasit tersebut pada ayam.petelur. Metode pengambilan sampel yang digunakan pada penelitian ini adalah purposive sampling, yaitu mengambil sampel feses dari setiap kandang yang diduga terinfeksi nematoda sebanyak 100 sampel. Penghitugan jumlah telur parasit menggunakan uji Mc. Master. Hasil penelitian pada ayam strain ISA Brown ditemukan nematoda Ascaridia galli, Heterakis gallinarum dan Syngamus trachea. Nilai prevalensi serangan nematoda paling tinggi sebesar 43% oleh Ascaridia galli dan nilai prevalensi paling rendah sebesar 4% oleh Syngamus trachea.

Case of syngamosis in partridges of a backyard farm

Sick and dead 2-months-old partridges (Alectoris chukar) were presented to the unit of Avian Medicine, Faculty of Veterinary Medicine, Aristotle University of Thessaloniki, Greece. The birds were reared at a specially constructed wire cage, which covered 600 m2 of the ground, including self-growing flora, in the region of Diavata, in the countryside of Thessaloniki. The farm consisted of young partridges, adult pheasants and wild passerines. Two months after placing the birds, 5 partridges were found dead. During the clinical examination of the submitted sick partridges, severe respiratory distress was observed, while some birds had anemic combs and others were breathing with open beaks and had their necks stretched. The necropsy revealed the presence of numerous gapeworms in the lumen of the trachea, forming the typical " Y" shape, since male and female Syngamus trachea are locked in copulation. The mucosa of trachea was, also, thickened, irritated and congested. No lesions to other organs were observed and the microbiological examination of liver, spleen and air-sacs samples was negative. Meanwhile, faecal samples were collected from the farm for parasitological examination. A sedimentation method was used and eggs of S. trachea were found. Syngamosis was determined to be the cause of the partridges' death. The gapeworms are considered potentially dangerous, especially for backyard, game-birds and free-living birds, while the control of the disease is complicated. This fact, along with the selective appearance of the clinical signs and the mortality only in the partridges of the farm are the remarkable points discussed in this article.

Density-dependent regulation of fecundity in Syngamus trachea infrapopulations in semi-naturally occurring ring-necked pheasants (Phasianus colchicus) and wild Carrion Crows (Corvus corone)

SUMMARYPrevious work has highlighted increased opportunities for the transmission of Syngamus trachea within pheasant release pens, due in part to high levels of environmental contamination around communal areas. Despite this, the distribution of adult worms within their definitive hosts is not significantly different from predicted distributions under Taylor's power law. Therefore, density-dependent processes are probably acting to regulate S. trachea population dynamics. Patterns of nematode fecundity were investigated in a semi-naturally occurring population of ring-necked pheasants (Phasianus colchicus) and a wild population of carrion crows (Corvus carone). Worm length was a reliable indicator of nematode fecundity, and a negative association between mean worm length and mean worm burden was identified within both the species. The stunting of worms at greater parasite densities was present in both immunologically naïve and previously exposed pheasants, so is unlikely to be a function of age-dependent acquired immunity. Interestingly, the effect of parasite crowding in the crow population explained more of the variation in mean worm length, apparently driven by a greater mean worm burden when compared with pheasants. The findings of the present study suggest that fecundity is a function of parasite density, i.e. parasite-mediated competition and not host-mediated heterogeneities in immunocompetence.