scholarly journals Gastrointestinal parasites in captive and free-living wild birds in Goiania Zoo

2022 ◽  
Vol 82 ◽  
Author(s):  
Y. J. O. Melo ◽  
H. T. Ferraz ◽  
K. C. Saturnino ◽  
T. D. P. Silva ◽  
I. A. Braga ◽  
...  
Keyword(s):  
Bird Species ◽  
Morphological Characteristics ◽  
Gastrointestinal Parasites ◽  
Wild Birds ◽  
Free Living ◽  
Rhea Americana ◽  
Nematode Parasites ◽  
Pavo Cristatus ◽  
Eimeria Spp ◽  
First Occurrence

Abstract Helminths are endoparasites that infect a variety of bird species. Endoparasite infections can cause severe diseases, including kill captive avian hosts and represents a problem to maintenance and conservation. The eggs and larval forms of these parasites are usually eliminated in the host feces. The main interest of this study is to report the occurrence of eggs and oocysts in feces from captive wild birds in Goiânia Zoo and free-living birds in its surroundings. The fecal samples were subjected to parasitological examination to identify the presence of helminths and to classify their eggs based on morphological characteristics. Eggs of nematode parasites (Positive/N) were identified as Ascaridia spp. in Brotogeris chiriri (2/2), Dromaius novaehollandiae (1/1) and Rhea americana (2/2); Ascarididae in Pavo cristatus nigripensis (1/1); Capillaria spp. in Ara chloropterus (1/1) and Penelope jacucaca (1/1); Capillaria plagiaticia in Anodorhynchus hyacinthinus (1/2) and Ara spp. (2/2); Capillaria venusta in Rhamphastus tucanus (1/2); and unidentified nematode eggs from Amazona amazonica (2/2). Eimeria spp. oocyst was founded in feces from A. hyacinthinus (1/2). Considering free-living birds, Diphyllobothrium spp. eggs were founded in Ardea alba (2/2) and Nycticorax nycticorax (2/3). Co-infection of Eustrongylides spp. was founded in A. alba (1/2). This is the first occurrence of: Ascaridia spp. parasitizing B. chiriri; and C. venusta parasitizing R. tucanus. In conclusion, the helminth eggs found in the abovementioned host bird species are consistent with those reported in the literature, and treatment and control protocols were based on their identification.

scholarly journals Parásitos gastrointestinales de aves silvestres en un ecosistema ribereño urbano tropical en Heredia, Costa Rica

2018 ◽  
Vol 66 (2) ◽  
pp. 788
Author(s):  
Gabriela Pérez-Gómez ◽  
Ana Eugenia Jiménez-Rocha ◽  
Tania Bermúdez-Rojas
Keyword(s):  
Costa Rica ◽  
Oral Cavity ◽  
Urban Ecosystems ◽  
Urban Ecosystem ◽  
Middle Part ◽  
The State ◽  
Gastrointestinal Parasites ◽  
Wild Birds ◽  
Biological Corridor ◽  
Eimeria Spp

Gastrointestinal parasites of wild birds in a tropical riverine urban ecosystem in Heredia, Costa Rica. In urban ecosystems, rivers provide various ecosystem services, among them, serving as interurban biological corridor, allowing birds to move and shelter in the middle of the city. However, high levels of pollution expose them, and even humans, to several health problems. Hence the importance of performing environmental diagnoses that allows to identify alterations and mitigate them in a timely manner. This study provides a first diagnosis of the parasitic situation of wild birds along the Pirro river which is located in an urban environment, fragmented and with high levels of surface water pollution. The sampling was carried out at the upper and middle part of the Pirro river in Heredia, Costa Rica. Mist-nets were used to capture the birds, and a general objective exam (GOE) was conducted in order to evaluate their nutritional and hydration state, as well as their physical state. In addition, stool samples were collected in order to characterize the gastrointestinal parasites (GPI). This procedure was carried out on 158 birds, belonging to 30 species, three PGI groups were identified: protozoa, nematodes and cestodes. The highest percentages of infection were represented by coccidia, with 97.6 %, followed by nematodes and cestodes with 2.4 %. Within the group of coccidios, it was possible to identify Eimeria spp., Isospora spp., in the nematodes: at the Strongylida group level and at the Capillaria spp., and for the cestodes: Choanotaenia spp. GOE resulted regular-to-good in all individuals captured, however, a general linear model was used to identify that the oral cavity and the state of the plumage could be the more linked variables with the percentage of infection by gastrointestinal parasites in birds, due to the fact that the oral cavity is the bird’s main route of ingestion, as well as the state of the plumage shows its vigor. Rev. Biol. Trop. 66(2): 788-798. Epub 2018 June 01.  

Aspergillus fumigatus. [Descriptions of Fungi and Bacteria].

1966 ◽  
Author(s):  
A. H. S. Onions
Keyword(s):  
Aspergillus Fumigatus ◽  
Geographical Distribution ◽  
Disease Incidence ◽  
Allergic Bronchopulmonary Aspergillosis ◽  
Wild Birds ◽  
Mastoid Cavity ◽  
Chronic Infections ◽  
Free Living ◽  
Haematogenous Spread ◽  
Primary Focus

Abstract A description is provided for Aspergillus fumigatus. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Common as a saprophyte in soil and fermenting vegetable matter. Pathogenic to mammals (including man), birds and insects. DISEASES: The most serious diseases caused by this fungus are the acute and chronic infections of the respiratory system (aspergillosis, aspergilloma) of man (Austwick, 1965; and many other references, e.g., RMVM 3, 677; 4, 316; 4, 549, 551) and animals (Ainsworth & Austwick, 1959; Austwick, 1965). It may also infect the cardiovascular, digestive, genital, musculoskeletal, nervous, and urinary systems, such infections usually following haematogenous spread of the pathogen from a primary focus in the lungs or air sacs. It is the most common cause of mycotic abortion in cattle (Ainsworth & Austwick, 1959; Austwick, RMVM 5, 660; Dijkstra; RMVM 5, 92) and less often in horses (Hensel et al. ; RMVM 4, 1227). Aspergillus fumigatus may also infect the ear (otomycosis) and mastoid cavity, the eye and sinuses (mycoses). Aspergillosis is a major disease of birds and is a cause of considerable losses in the poultry industry, particularly of very young birds (brooder pneumonia) (Vertinskii et al. ; RMVM 5, 758; Vallejo; 5, 940). It is also common in captive wild birds, especially water birds (Ainsworth & Rewell; RMVM 1, 2090; Dathe; 4, 1948; Saez; 4, 811), but reports of infections in free-living wild birds are more rare (Beer; RMVM 4, 2177; McDiarmid; 2, 1761; Rosen, 5, 558). A. fumigatus also invades eggs. Aspergillus fumigatus spores may induce allergic reactions in man, resulting in hay fever, asthma or allergic bronchopulmonary aspergillosis. It also produces toxins (Ainsworth & Austwick, 1959; Austwick, 1965). GEOGRAPHICAL DISTRIBUTION: World-wide. TRANSMISSION: Soil and air-borne. Disease incidence appears to be related to heavy infection from house dust, mouldy hay or straw, litter, or feeding stuffs (Austwick, 1965; Austwick, RMVM 5, 3b).

scholarly journals Haematophagic Caenorhabditis elegans

Parasitology ◽  
2018 ◽  
Vol 146 (3) ◽  
pp. 314-320 ◽  
Author(s):  
Veeren M Chauhan ◽  
David I Pritchard
Keyword(s):  
Caenorhabditis Elegans ◽  
Neutralizing Antibodies ◽  
Fluorescent Microscopy ◽  
Free Living ◽  
C Elegans ◽  
Vaccine Responses ◽  
Nematode Parasites ◽  
Significant Difference ◽  
Free Living Nematode ◽  
Bright Emission

AbstractCaenorhabditis elegans is a free-living nematode that resides in soil and typically feeds on bacteria. We postulate that haematophagic C. elegans could provide a model to evaluate vaccine responses to intestinal proteins from hematophagous nematode parasites, such as Necator americanus. Human erythrocytes, fluorescently labelled with tetramethylrhodamine succinimidyl ester, demonstrated a stable bright emission and facilitated visualization of feeding events with fluorescent microscopy. C. elegans were observed feeding on erythrocytes and were shown to rupture red blood cells upon capture to release and ingest their contents. In addition, C. elegans survived equally on a diet of erythrocytes. There was no statistically significant difference in survival when compared with a diet of Escherichia coli OP50. The enzymes responsible for the digestion and detoxification of haem and haemoglobin, which are key components of the hookworm vaccine, were found in the C. elegans intestine. These findings support our postulate that free-living nematodes could provide a model for the assessment of neutralizing antibodies to current and future hematophagous parasite vaccine candidates.

Relationship between Morphology and Trophic Ecology in an Assemblage of Passerine Birds in Riparian Forests of the Paraná River (Argentina)

2018 ◽  
Vol 11 (1) ◽  
pp. 44-53 ◽  
Author(s):  
Virginia Quiroga ◽  
Rodrigo E. Lorenzón ◽  
Gisela Maglier ◽  
Ana L. Ronchi-Virgolini
Keyword(s):  
Trophic Ecology ◽  
Riparian Forest ◽  
A Priori ◽  
Bird Species ◽  
Morphological Characteristics ◽  
Paraná River ◽  
Riparian Forests ◽  
Phylogenetic Constraint ◽  
Parana River ◽  
Coexisting Species

We describe the ecomorphology of an assemblage of bird species found in riparian forests of the Middle Paraná River, Argentina. We sought to determine (1) the more important morphological characteristics that separate coexisting species, (2) whether such separation was related to the trophic ecology of each species and (3) whether a priori guilds showed morphological similarity. We tested the hypotheses that (a) a species’ morphology is related to the trophic ecology of that species and (b) that species of a priori guilds are morphometrically more similar to each other than to species of different a priori guilds. For this, we considered an assemblage of 29 species of birds from riparian forest that were sampled with mist nets during the 2011 and 2014 breeding seasons. We obtained morphometric measurements of captured individuals and supplemented those data with measurements from museum specimens. Trophic characterisation (diet and trophic microhabitat) was based on a literature review. Results showed a separation of bird species as a function of variables related to trophic ecology (diets and trophic microhabitats) and morphology. After controlling for phylogenetic constraint, species’ morphology partially reflected the trophic ecology of the species, supporting the central hypothesis of the ecomorphological discipline and showing that the use of trophic and morphometric data provides complementary data to improve the guild organisation of riparian bird assemblages.

scholarly journals Potential reverse spillover of infectious bursal disease virus at the interface of commercial poultry and wild birds

Virus Genes ◽  
2020 ◽  
Vol 56 (6) ◽  
pp. 705-711
Author(s):  
Rania F. El Naggar ◽  
Mohammed A. Rohaim ◽  
Muhammad Munir
Keyword(s):  
Disease Virus ◽  
Infectious Bursal Disease Virus ◽  
Potential Role ◽  
Wild Birds ◽  
Infectious Bursal Disease ◽  
Free Living ◽  
Bean Goose ◽  
Bursal Disease ◽  
Commercial Poultry

AbstractRecently, multiple spillover events between domesticated poultry and wild birds have been reported for several avian viruses. This phenomenon highlights the importance of the livestock-wildlife interface in the possible emergence of novel viruses. The aim of the current study was to investigate the potential spillover and epidemiological links of infectious bursal disease virus (IBDV) between wild birds and domestic poultry. To this end, twenty-eight cloacal swabs were collected from four species of free-living Egyptian wild birds (i.e. mallard duck, bean goose, white-fronted goose and black-billed magpie). Genetic and phylogenetic analysis of three positive isolates revealed that the IBDV/USC-1/2019 strain clustered with previously reported very virulent IBDV (vvIBDV) Egyptian isolates. Interestingly, two other wild bird-origin isolates (i.e. IBDV/USC-2/2019 and IBDV/USC-3/2019) grouped with a vaccine strain that is being used in commercial poultry. In conclusion, our results revealed the molecular detection of vaccine and vvIBDV-like strains in Egyptian wild birds and highlighted the potential role of wild birds in IBDV epidemiology in disease-endemic regions.

scholarly journals Some larval morphological characteristics of Camelostrongylus mentulatus and Nematodirus spathiger

2020 ◽  
Vol 3 (2) ◽  
pp. 7-11
Author(s):  
A. Saidi ◽  
R. Mimouni ◽  
F. Hamadi ◽  
W. Oubrou
Keyword(s):  
Morphological Characteristics ◽  
Gastrointestinal Nematode ◽  
Parasitic Nematodes ◽  
Morphological Identification ◽  
Morphological Pattern ◽  
Wild Ruminants ◽  
Nematode Parasites ◽  
Domestic Ruminants ◽  
Teladorsagia Circumcincta ◽  
Camelostrongylus Mentulatus

Monitoring of gastrointestinal nematode parasites in ruminants (domestic and wild) is often based on fecal examination techniques, looking for excreted eggs and larval forms using morphological keys. These, are more available in domestic ruminants, in which helminths are widely studied, than in wild ruminants.  This study tried to provide certain morphological elements that will help to recognize the L3 larvae of Camelostrongylus mentulatus and Nematodirus spathiger that could parasite either domestic or wild ruminants. For that, we resorted first to the culture of L3 larvae from fecal samples taken from African antelopes, and second by the microscopic characterization of each isolated larval morphological pattern previously identified by sequencing of its internal transcribed spacer (ITS-2) regions of the ribosomal DNA. The results of different microscopic captured images showed that Camelostrongylus mentulatus larva is 16 intestinal cells that measuring approximately 820 µm length, ‎≈ 25 µm wide, and ‎≈ 47 µm for its sheath tail extension and by this be closer to Teladorsagia circumcincta characteristics.  For Nematodirus spathiger, it possesses 8 gut cells and measuring about 1020 µm long, ‎≈ 25 µm wide, and‎ ≈ 143 µm for its sheath tail extension with specific tail appendages. Have done this, we were able to get some clarifications on the morphology of the studied larvae, and we believe thus that this study will contribute to the establishment of morphological identification keys especially for parasitic nematodes of wild ruminants.

scholarly journals Abundance, diversity and daily activity of terrestrial mammal and bird species in disturbed and undisturbed limestone habitats using camera trapping, Central Thailand

2021 ◽  
Vol 22 (8) ◽  
Author(s):  
MANANYA PLA-ARD ◽  
WIPAVEE HOONHEANG ◽  
BUNYATHIPORN KAEWDEE ◽  
TARAPON PANGANTA ◽  
KHWANRUTAI CHARASPET ◽  
...  
Keyword(s):  
Daily Activity ◽  
Bird Species ◽  
Wild Birds ◽  
Camera Trapping ◽  
Mountainous Area ◽  
Mining Activities ◽  
Natural Habitats ◽  
Terrestrial Mammal ◽  
Significant Difference ◽  
Central Thailand

Abstract: Pla-ard M, Hoonheang W, Kaewdee B, Panganta T, Charaspet K, Khoiesri N, Paansri P, Kanka P, Chanachai Y, Thongbanthum J, Bangthong P, Sukmasuang R. 2021. Abundance, diversity and daily activity of terrestrial mammal and bird species in disturbed and undisturbed limestone habitats using camera trapping, Central Thailand. Biodiversitas 22: 3620-3631.  This study on the abundance, diversity and daily activity of terrestrial mammal and bird species was conducted in the limestone mountainous area of Central Thailand, located on the east of Dong Phaya Yen-Khao Yai forest complex. Camera traps were placed in both habitats disturbed by limestone mining and undisturbed habitat areas. From the study, a total of 38 species of mammals and birds from 27 families in 13 orders were recorded, including 15 species of mammals from 6 orders, 12 families and 23 species of birds from 14 families in 7 orders. Fifteen species of mammals were recorded in the undisturbed area and 11 were recorded in the disturbed area, with the Malayan Pangolin, Small Indian Civet and Grey-bellied Squirrel found in the undisturbed area. However, the number of bird species in the limestone mining area was larger than in the undisturbed area. It was also found that there was no difference in the overall abundance and diversity of mammalian species between disturbed and undisturbed areas, which is not in accordance with the hypothesis. But in the case of wild birds, the relative abundance of wild birds was found to differ significantly between areas. A high number was found in the areas with mining activities, although there was no difference in the diversity index of the two areas. However, it was found that when the combined data was analyzed, there was a significant difference in the daily activity of both mammals and wild birds in both areas. Many rare wildlife species were recorded during this study, for example, the Malayan Pangolin, Serow, Northern Pig-tailed Macaque, Rufous Limestone-babbler, Golden Jackal, Leopard Cat, Large-toothed Ferret Badger, Small Asian Mongoose, Common Palm Civet, Small Indian Civet, Malayan Porcupine. The key measure proposed is to preserve some natural habitats within the areas with mining activities, as wildlife remains in the area.

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