scholarly journals Anoplocephalidoses of Small Cattle in Nakhchivan Autonomous Republic

2020 ◽  
Vol 6 (11) ◽  
pp. 213-216
Author(s):  
E. Mamedov
Keyword(s):  
Species Composition ◽  
Different Ages ◽  
Moniezia Expansa ◽  
Intensity Of Invasion ◽  
Autonomous Republic

In 2017–2019 studying of contamination of small cattle with anoplocephalid tapeworms in various farm of Nakhchivan AR is carried out. A total of 1625 sheep and lambs of different ages were used in this study. 584 intestines of sheep were observed. It is ascertained, that in the conditions of the Nakhchivan Anoplocephalidae of small cattle are widespread. Disease of small cattle is observed in all districts. The species composition of anoplocephalid tapeworms of small cattle in the territory includes 5 species. During inspections of the intestinal tracts were found 5 species of anoplocephalid tapeworms: Moniezia expansa, M. benedeni, Avitellina centripunctata, Thysaniezia giardi and Stilesia globipunctata. Extensiveness of invasion by results of helminthoovoscopic examination is 36.6% and by results of helminthological dissections is 26.4%. Intensity of invasion of small cattle with anoplocephalid tapeworms is on the average 3.4 sp./h.

Parasites of the spiny loach Cobitis taenia Linnaeus, 1758 (Pisces: Cobitidae) from Saratov Reservoir

2016 ◽  
Vol 3 (4) ◽  
pp. 502-508 ◽  
Author(s):  
Минеева ◽  
O. Mineeva
Keyword(s):  
Species Composition ◽  
Standard Technique ◽  
Parasite Fauna ◽  
Middle Part ◽  
Saratov Reservoir ◽  
The Common ◽  
Cobitis Taenia ◽  
Species Specific ◽  
Intensity Of Invasion ◽  
Raphidascaris Acus

Objective of research. To study the species composition of the parasite fauna and the infestation rate of the spiny loach Cobitis taenia Linnaeus, 1758 from Saratov Reservoir. Materials and methods. The material was collected in the Mordovo-Kol’tsovsky area of the Reservoir (the middle part of the reservoir) in 2009 and 2014–2015. Fishing was carried out by a hydrobiological net. Totally 47 individuals of spiny loach were investigated by the method of full parasitological autopsy. Collection, fixation and office studies were carried out using the standard technique; diagnostics of species composition of parasites — by identification guides. To estimate the rate of fish invasion, we used the common parasitological indices: extensity of invasion, intensity of invasion and the index of abundance of parasites. Results and discussion. 7 species of parasites belonging to 5 classes: Monogenea — 1, Cestoda — 1, Trematoda — 3, Nematoda — 1, Bivalvia — 1 were found in the spiny loach Cobitis taenia Linnaeus from Saratov Reservoir. The species composition of parasites and the level of host infestation directly depend on the lifestyle and nutrition of fishes. Eating the infected benthic and weed bed invertebrates (oligochaetes, larvae and adult insects), the spiny loach becomes infected with 3 species of helminths. 4 species of parasites infect the host using the active infestation way. Most of the parasites found in fish from different families and groups are wide specific. The parasite fauna includes 1 species, narrow specific for the spiny loach (monogenea Gyrodactylus latus Bychowsky, 1933) and 1 species specific for loaches (fam. Cobitidae) — metacercariae of Holostephanus cobitis Opravilova, 1968. For 4 species of parasites, the spiny loach is the final (definitive) host, for 3 — intermediate. The dominant species in the composition of the parasite fauna C. taenia is the trematode H. cobitidis (mtc.); the extensity of infection with it reaches 97,9%, the abundance index is 10,8 ind. Fluke larvae infect fishes (using the active way) penetrating through the skin. The most pathogenic for spiny loach parasites are the monogenea G. latus, metacercariae of trematodes H. cobitidis and Paracoenogonimus ovatus Katsurada, 1914, the larva of the nematode Raphidascaris acus Bloch, 1779.

The appearance of rods in the eyes of herring and increased di-docosahexaenoyl molecular species of phospholipids

1993 ◽  
Vol 73 (3) ◽  
pp. 679-688 ◽  
Author(s):  
M. V. Bell ◽  
J. R. Dick
Keyword(s):  
Docosahexaenoic Acid ◽  
Species Composition ◽  
Molecular Species ◽  
Outer Segment ◽  
Clupea Harengus ◽  
Molecular Species Composition ◽  
Rod Outer Segment ◽  
Different Ages

The retina of larval herring (Clupea harengus L.) contains only cones, with rods recruited progressively from about eight weeks onwards. The molecular species composition of phospholipids from the eyes of herring of different ages was determined to find whether the appearance of di-docosahexaenoyl molecular species (di22:6n-3) of phospholipids, which are characteristic of rod outer segment membranes in higher vertebrates, coincided with the appearance of rods. In the eyes of larval herring (cone-only retina) di22:6n-3 molecular species comprised 25.9% of phosphatidylethanolamine (PE), 22.9% of phosphatidylserine (PS) and 4.2% of phosphatidylcholine (PC). In the eyes of adult herring (rod:cone ratio of about 20:1) the proportion of di22:6n-3 molecular species had increased to 49.5%, 39.0% and 16.8% in PE, PS and PC, respectively. Juvenile herring had intermediate values of di22:6n-3 phospholipids. The results confirm the hypothesis that the amounts of di22:6n-3 molecular species of phospholipids in retina increase during development as rods appear, and also show that cones contain smaller amounts of these unique lipids. Three other molecular species containing docosahexaenoic acid, 16:0/22:6n-3, 18:1/22:6n-3 and 18:0/22:6n-3 were also major components of eye phospholipids, emphasizing the important role of 22:6n-3 in vision.

scholarly journals Studying the Prevalence Dynamics of Helminthosis in the Sheep-Breeding Farms in Azerbaijan

2021 ◽  
Vol 7 (10) ◽  
pp. 119-124
Author(s):  
N. Gasanaliev
Keyword(s):  
Fasciola Hepatica ◽  
Research Work ◽  
Age Groups ◽  
Animal Husbandry ◽  
Sheep Breeding ◽  
Moniezia Expansa ◽  
The Republic ◽  
Breeding Farms ◽  
Intensity Of Invasion

The main purpose of the research work is to identify the prevalence of helminthiasis in private sheep-breeding farms of the Sheki, Zagatala and Oguz districts of the Republic of Azerbaijan. One of the urgent problems is the study of mixed invasions that cause damage to animal husbandry. Based on this, as a result of the investigations, the extensiveness and intensity of helminthiasis in sheep of different age groups were studied as a result of the examinations. Extensiveness of invasion: in Sheki district for moniesiasis — 26.6%, for fascioliasis — 20.8%, for dicroceliosis — 23.3%, in Zagatala district for moniesiasis — 21.6%, for fascioliasis — 15.8%, for dicroceliosis — 17.5%, in Oguz distirct for monieziasis — 30.8%, for fascioliasis — 25.8%, for dicroceliosis — 28.3% were identified during the scatological examinations conducted. Presence the intensity of invasion on average: in the Sheki district with Moniezia expansa — 2–6, Fasciola hepatica — 4–14, Dicrocoelium lanceatum — 7–21, in the Zagatala district with Moniezia expansa — 1–4, Fasciola hepatica — 3–11, Dicrocoelium lanceatum — 5–17, in the Oguz district with Moniezia expansa — 2–7, Fasciola hepatica — 5–18, Dicrocoelium lanceatum — 9–24 specimens were identified when examining during the autopsy.

The study on seasonal dynamics and development of larval stages of causative agents of cattle hypodermatosis in the Chechen Republic

2016 ◽  
Vol 3 (3) ◽  
pp. 304-311
Author(s):  
Вацаев ◽  
Sh. Vatsaev ◽  
Толоконников ◽  
V. Tolokonnikov
Keyword(s):  
Species Composition ◽  
Seasonal Dynamics ◽  
Economic Damage ◽  
Prevention Measures ◽  
Larval Stages ◽  
Treatment And Prevention ◽  
Causative Agents ◽  
Invasion Species ◽  
The Republic ◽  
Intensity Of Invasion

Objective of research: to study the regional epizootology, species composition and bioecological features of development of causative agents of cattle hypodermatosis and elaboration of struggle measures against it in the Chechen Republic. Materials and methods: Data on extensity and intensity of invasion, species composition of causative agents of cattle hypodermatosis, seasonal dynamics, larval approach to the surface of animal back (gadfly larvae deposited in animals’ skin), time of the larval-pupal transformation (stages of larval development), treatment and prevention measures are provided in this article. Results and discussion: This research has found that in the Chechen Republic the extensity of gadfly invasion was in the range 24,4% — 62,1%; the intensity of invasion was 9,8 — 24,0 larv./animal. Two gadfly species Hypoderma bovis De Geer and Hypoderma lineatum De Villers are causative agents of animal hypodermatosis. H. bovis is spread everywhere, H. lineatum — mainly in plain and piedmont of the republic. Gadfly flight in different natural-climatic zones of the republic is registered from the end of April until the middle of October. Treatment and prevention measures continuously conducted for the whole livestock ( in spring against larvae of the 1st stage and in autumn — against larvae of the 2nd and 3rd development stages), taking into account ecological, phenological and epizootological situation in the region, may contribute to the full elimination of causative agents of hypodermatosis or their significant minimizing, reduction of economic damage to livestock of the republic. Based on experimental data, the economically reasonable schedule of treatment and prevention measures has been created.

scholarly journals The collections of Alexandr Sergeyevich Lisetskiy in the ornithological collection of the Museum of Nature of V.N.Karazin Kharkiv National University

2019 ◽  
Keyword(s):  
New Species ◽  
Species Composition ◽  
Rare Species ◽  
Significant Part ◽  
Passerine Birds ◽  
National University ◽  
A New Species ◽  
Autonomous Republic ◽  
Narcissus Flycatcher ◽  
Inventory Number

A significant part of the ornithological collection of the Museum of Nature of V.N.Karazin Kharkiv National University is made up of the collections of Alexandr Sergeyevich Lisetskiy: 1292 specimens (of which 1276 skins and 16 stuffed animals), which is almost 7% of the total number of the museum’s ornithological collection (almost 19 thousand items). By species composition Lisetskiy's collections are represented by 215 species of birds (of which 85 species of non-passerine birds and 130 species of passerine birds). By geographical diversity, the collections of Alexandr Sergeyevich are representing Ukraine (Zaporozhe, Lugansk, Kharkov, Kherson regions and collections from the Autonomous Republic of Crimea), Russia (Volgograd, Murmansk, Sakhalin regions; Kamchatka, Krasnodar Territory, Republic of Dagestan), Turkmenistan (Akhal velayat), Georgia (Tbilisi, Imereti, Autonomous Republic of Adjara) and Armenia. The collections of Alexander Sergeevich Lisetskii significantly enriched the museum’s ornithological collection, replenished it with specimens of rare species represented in the collection as single specimens: the yellow browed warbler Phylloscopus inornatus (Blyth, 1842), a new species in Crimea’s fauna and the only confirmed registration of this species in the area; the Pechora pipit, Anthus gustavi Swinhoe, 1863; the russet sparrow Passer rutilans (Temminck, 1835), the only specimen in the museum’s collection, the narcissus flycatcher Ficedula narcissina (Temminck, 1835) of which only 2 specimen are in the collection and one of them was collected by Alexandr Sergeyevich; as well as the olive-backed pipit Anthus hodgsoni (Richmond, 1907), the Radde's warbler Phylloscopus schwarzi (Radde, 1863), the eastern rock-nuthatch Sitta tephronota Sharpe, 1872, the grey-necked bunting Emberiza buchanani Blyth, 1844 and others. The collections of Alexandr Sergeyevich presented by skins are stored in the scientific collection of the museum in the stock room in special boxes. Stuffed specimens are on display and are in cabinets or display cases. Each specimen has an inventory number, a detailed label indicating the sex, place and date of extraction, who determines the species, who made the skins or stuffed specimens. Each specimen is listed in the catalog and database of the museum’s ornithological collection.

scholarly journals HELMINTHES OF CATFISH (SILURUS GLANIS L.) IN WATER BODIES OF THE MIDDLE REACHES OF THE SYRDARYA RIVER

2021 ◽  
pp. 33-37
Author(s):  
Abduganiyev
Keyword(s):  
Species Composition ◽  
Infection Rate ◽  
Water Bodies ◽  
Larval Form ◽  
Research Results ◽  
Silurus Glanis ◽  
Mature Form ◽  
Sexually Mature ◽  
Intensity Of Invasion ◽  
Artificial Reservoirs

Study of the species composition of catfish helminths in water bodies of the middle reaches of the Syrdarya river. The material was collected in 2019–2021 in natural and artificial reservoirs of the middle reaches of the Syrdarya river. We examined 216 specimens of the catfish by methods of complete parasitological dissection proposed by V.A. Dogel (1933), A.P. Markevich (1950) and I.E. Bykhovskaya-Pavlovskaya (1952). The helminths found were undergone laboratory inspection according to generally accepted methods of I.E. Bykhovskaya-Pavlovskaya (1952), A.A. Shigin (1986) and O.N. Bauer (1987). As the research results show, the prevalence in catfish was 31.5% with the intensity of invasion 1–70 specimens. 29 species of helminths were recorded in the catfish: 7 species of cestodes, 10 species of trematodes, 9 species of nematodes, and 3 species of proboscis worms, which belong to 27 genera, 19 families, 11 orders and 4 classes. Events of mono- and associative invasions have been reported. From 29 species of helminths found, 17 species were found in the larval form, and 12 species in the sexually mature form. In natural and artificial reservoirs of the Syrdarya region of Uzbekistan, the catfish is infected with 29 species of helminths. The total infection rate in fish is 31.5%. This parameter varies depending on the season of the year

scholarly journals Species composition and distribution of the genus Liquidambar L. (ALTINGIACEAE) in Ukraine

2021 ◽  
pp. 274-277
Author(s):  
N. M. Smilyanets ◽  
I. M. Svitylko
Keyword(s):  
Species Composition ◽  
Positive Experience ◽  
Botanical Gardens ◽  
Single Location ◽  
Species Composition And Distribution ◽  
Forest Parks ◽  
The City ◽  
Autonomous Republic ◽  
City Park

A screening of 50 institutions (botanical gardens, arboretums, parks, squares) was conducted with a view to study of species composition and the distribution of genus Liquidambar L. (ALTINGIACEAE) in Ukrainia. L. styraci- flua L. was recorded — in 26 botanical gardens, parks, squares etc; L. formosana Hanse — in 2 botanical gardens; decorative forms L. styraciflua 'Variegata pendula' — in one arboretum; L. styraciflua 'Worplesdon'; — in landscaping of the city park; L. styracifluа ‘Pasquali’ — in landscaping of the city park. Distribution of the species L. orientalis Mill. and L. acalicina Hang N. Chang need more research. Positive experience of using representatives Liquidambar genus registered in the following regions of Ukraine: Zakarpattia, Ternopil, Lviv, Dnipropetrovsk, Kyiv, Cherkasy, Chernivtsi, Kharkiv, Donetsk areas, Autonomous Republic Crimea. So, it is perspective using representatives of the Liquidambar genus in landscape construction for group creations, single location іn parks, squares, zoos, forest parks, for landscaping streets, boulevards, squares, near houses territories, administrative buildings, private gardens, in exposition of botanical gardens and arboretums.

scholarly journals Comparison of aquatic macrophyte community structure between natural wetlands and rice fields with different cultivation ages

2017 ◽  
Vol 78 (2) ◽  
pp. 224-232 ◽  
Author(s):  
A. S. Rolon ◽  
R. S. Godoy ◽  
L. Maltchik
Keyword(s):  
Species Composition ◽  
Rice Field ◽  
Aquatic Macrophyte ◽  
Rice Fields ◽  
Initial Growth ◽  
Intermittent Wetlands ◽  
Macrophyte Community ◽  
Different Ages ◽  
Natural Wetlands ◽  
Aquatic Macrophyte Community

Abstract Recent studies indicate that rice fields contribute to the conservation of aquatic plants, however, repeated cultivation can reduce the species diversity harbored by rice fields. Repeated tillage, agrochemical application and environmental homogeneity can reduce plant diversity and select for species more tolerant to disturbance. Our hypotheses were: 1) macrophyte richness and biomass decrease with increased rice crop age; and 2) macrophyte species of rice fields are a subsample of natural wetlands and species loss will increase with crop age. We investigated three rice fields of each different ages (old, intermediate and new ones) and three natural intermittent wetlands for this study. Each area was sampled four times throughout the rice cultivation cycle (off-season, initial growth, final growth and post-harvest). Our results showed that the mean macrophyte richness and biomass were similar between rice fields of different ages and lower than that of natural wetlands. Although species composition in the different-aged rice fields was not markedly different, there was nestedness in the rice fields as age increased. In this study, we verified that macrophyte richness and biomass in rice fields was lower than natural wetlands and the species composition was different among wetland types (rice fields and natural wetlands), however our hypothesis that species richness and biomass will decrease with crop age was not confirmed. All rice crops had similar macrophyte assemblage structure (richness, biomass and species composition). However, the another hypothesis tested was confirmed, macrophyte assemblage of rice fields is a subset of natural wetlands and as, the age of a rice field increases, the species that occur in older rice field are subsets of species that occur in younger ones.

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