scholarly journals Features of the parasitic system formation in common carp in the aquaculture of the north-eastern and eastern regions of Ukraine

2020 ◽  
Vol 6 (2) ◽  
pp. 9-15
Author(s):  
A. V. Yevtushenko
Keyword(s):  
Common Carp ◽  
Crucian Carp ◽  
Intermediate Hosts ◽  
The North ◽  
North Eastern ◽  
Parasitic System ◽  
Bothriocephalus Acheilognathi ◽  
Argulus Foliaceus ◽  
High Level ◽  
Lernaea Cyprinacea

The research aimed to determine the peculiarities of the formation of the parasitic system in common carp in the aquaculture of the North-Eastern and Eastern regions of Ukraine. According to the results of the research, 27 species of parasites were found in common carp (12 — protozoa, 6 — monogeneans, 3 — trematodes, 2 — cestodes, 4 — parasitic crustaceans). Three species (11.1%) of registered parasites were invasive. 22 species (81.5%) of detected common carp’s parasites develop directly and 5 (18.5%) — with the participation of definitive and intermediate hosts. 26 species (96.3%) of common carp’s parasitic fauna were found in crucian carp and 21 species (77.8%) in other coarse fish species (roach, rudd, bleak, perch). It has been established that among the protozoa, pathogens from the genera Trichodina, Chilodonella, and Ichthyophthirius were of epizootic importance for young common carp; Eimeria carpelli, Ichthyobodo necator, Myxobolus ellipsoides, and Myxobolus dogieli had relevance. The level of prevalence in common carp fingerlings during outbreaks of chylodonelosis was 72%, two-year-olds — 65%, three-year-olds — 27%, during outbreaks of ichthyoftiriosis — 45%, 56%, and 24%, respectively. Prevalence of Trichodina acuta and Trichodina nigra in common carp fingerlings was, respectively, 52% and 38%, Ichthyobodo necator — 16%, Eimeria carpelli — 22%, Myxobolus ellipsoides, and Myxobolus dogieli — 17–18%. Among the pathogens of helminthic diseases in the aquaculture, monogenetic suckers (Dactylogyrus anchoratus, Dactylogyrus extensus, Dactylogyrus vastator, Gyrodactylus cyprini, and Gyrodactylus katharineri), as well as cestodes (Bothriocephalus acheilognathi and Khawia sinensis) were the most epizootic significance for common carp. Prevalence of parasites from the genus Dactylogyrus reached 68–87% in fingerlings, from the genus Gyrodactylus — 21–36%. The highest level of Bothriocephalus acheilognathi infection (82%) was registered in fingerlings. The maximum prevalence of Khawia sinensis (62%) was observed in two-year-olds. Outbreaks of diseases caused by crustaceans Lernaea cyprinacea and Argulus foliaceus with a high level of prevalence have been reported in fish from fingerlings to three-year-olds. The level of prevalence of Lernaea cyprinacea was 69%, Argulus foliaceus — 22%

scholarly journals Features of the parasitic system formation in herbivorous fish in the aquaculture of the North-Eastern and Eastern regions of Ukraine

2020 ◽  
Vol 6 (1) ◽  
pp. 18-24
Author(s):  
A. V. Yevtushenko
Keyword(s):  
Grass Carp ◽  
Silver Carp ◽  
Bighead Carp ◽  
Herbivorous Fish ◽  
The North ◽  
North Eastern ◽  
Parasitic System ◽  
Bothriocephalus Acheilognathi ◽  
High Level ◽  
Lernaea Cyprinacea

The research aimed to determine the peculiarities of the formation of the parasitic system in herbivorous fish in the aquaculture of the North-Eastern and Eastern regions of Ukraine. In fish farms of the North-Eastern and Eastern regions of Ukraine, 26 species of parasites were found in herbivorous fish: 19 species in the silver carp (11 — protozoa, 1 — monogeneans, 4 — trematodes, 3 — parasitic crustaceans); 18 species in the grass carp (6 — protozoa, 1 — monogeneans, 4 — trematodes, 4 — cestodes, 3 — parasitic crustaceans); and 20 species in the bighead carp (10 — protozoa, 1 — monogeneans, 4 — trematodes, 2 — cestodes, 3 — parasitic crustaceans). 11 species (42.3%) of registered parasites were invasive; 18 species (69.2%) of the detected herbivorous fish’s parasites develop directly and 8 (30.8%) — with the participation of definitive and intermediate hosts; the fish is an additional (second intermediate) host in the life cycle of 6 species (23.1%) of parasites. Outbreaks of diseases caused by parasitic protozoa from the genera Myxobolus, Cryptobia, Chilodonella, and Ichthyophthirius have been reported in both fingerlings and two-year-olds. The protozoa from the genera Ichthyobodo, Trichodina, and Trichodinella were registered en masse only in fingerlings. Pathogens from the genus Dactylogyrus were more often registered among three-year-old silver and bighead carps. Metacercariae of Ichthyocotylurus variegatus were found en masse in fingerlings of the grass carp. Posthodiplostomum cuticola larvae in unfavorable farms were found with a high level of prevalence in fish of different age groups. Thong plerocercoids were more commonly recorded in two-year-old silver and bighead carps and fingerlings of the grass carp. The highest level of cestode infection with Bothriocephalus acheilognathi was recorded in fingerlings of the grass carp. Parasitic crustaceans Sinergasilus lieni with a high level of prevalence were registered in two-year-old and three-year-old fish. Crustaceans Lernaea cyprinacea massively affected two-year-old and three-year-old fish. Pathogens from the genera Trichodina, Cryptobia, and Chilodonella, and Dactylogyrus hypophthalmichthys, Posthodiplostomum cuticola, and Sinergasilus lieni were of the greatest epizootic significance for the silver carp; for the bighead carp — from the genus Myxobolus, (especially M. pavlovskii), Chilodonella piscicola, Ichthyophthirius multifiliis, Dactylogyrus aristichthys, Posthodiplostomum cuticola, Diplostomum spathaceum, Digramma interrupta, and Sinergasilus lieni; for the grass carp — Bothriocephalus acheilognathi, Ichthyocotylurus variegatus, Ligula intestinalis, Sinergasilus major, Lernaea cyprinacea, Ichthyobodo necator, and Ichthyophthirius multifiliis

scholarly journals Performance of an improved breed of common carp - Amur (Hungarian strain) in the North-eastern hill state of Meghalaya, India

2017 ◽  
Vol 64 ◽  
Author(s):  
S. K. Das
Keyword(s):  
Common Carp ◽  
Atmospheric Temperature ◽  
Fish Production ◽  
North East ◽  
The North ◽  
Hill Region ◽  
Common Carp Cyprinus Carpio ◽  
North Eastern ◽  
Genetically Improved ◽  
Research Complex

Common carp (Cyprinus carpio Linnaeus, 1758) is an important fish species for aquaculture in the North-east hill region (NEH) of India. However, in recent years, the growth performance of the existing stock of common carp has been a major concern. In an effort to improve fish production from farmers’ ponds and to evaluate the performance of the breed in mid hill condition, a genetically improved breed of common carp, Amur (Hungarian strain) was introduced in Meghalaya in 2010. Fingerlings of Amur common carp (weight ~14.5 g and length ~10.5 cm), reared under mid-altitude conditions in the fish farm of the ICAR Research Complex for North-eastern hill (NEH) Region, Barapani, Meghalaya, attained maturity in about 14 months period. The first breeding trial with this newly introduced variety was conducted successfully in March 2011 when the atmospheric temperature ranged between 16.0-18.30C. The fertilised eggs hatched in 78-83 h (water temperature 19.0-22.80C and pH 6.5-6.8). Three year studies revealed that the performance of Amur common carp is superior over the local existing breed in farmers ponds under the mid hill conditions.

Socio-economic correlates of internal migration in India

2021 ◽  
Vol 67 (2) ◽  
pp. 184-193
Author(s):  
Shazia Shazia ◽  
◽  
Jabir Hasan Khan ◽  
Keyword(s):  
Research Work ◽  
Low Grade ◽  
Indian States ◽  
Independent Variables ◽  
Secondary Sources ◽  
Southern States ◽  
The North ◽  
North Eastern ◽  
High Level ◽  
The Relationship

The present paper is an attempt to analyse the spatial patterns of migration, variations in the level of socio-economic development and the relationship between total migration (dependent variable) and selected variables of development (independent variables) among the states of India. The entire research work is based on secondary sources of data, collected from Census of India publications (2011), Migration Table – D Series, Handbook of Statistics of Indian States, Primary Census Abstract of India and Basic Road Statistics of India. The boundary of a state has been taken as the smallest unit of the study. The present study reveals that, from the southern part of the country, the level of migration changes rapidly from high to low grade towards the north. On the other hand, the states lying in the western and eastern part experienced medium to high level of migration in comparison to the north-eastern states having a low level of migration in India. The level of development is high or medium in northern, western and southern states in comparison to the states, lying in the eastern and north-eastern parts of the country.

Analyses of Awareness, Perception and Attitude towards Embedded Librarianship among Librarians in North-Eastern Universities, Nigeria

2019 ◽  
Vol 9 (3) ◽  
pp. 37-43
Author(s):  
Augustine Uzoma Madu ◽  
Emmanuel M. K. Dawha
Keyword(s):  
Current Trend ◽  
Research Area ◽  
Academic Librarians ◽  
Library Services ◽  
University Libraries ◽  
North East ◽  
The North ◽  
North Eastern ◽  
New Research ◽  
High Level

Innovations in library services and need for professional development among librarians with growth in research have brought to bear on the concept of embedded librarianship as a new research area in librarianship. It is expected that librarians in Nigeria must do all to move with the current trend in the discipline. This study aims to under the roles of awareness, attitude and perception of academic librarians in North-east Nigeria towards embedded librarianship practice. A survey of 11 university libraries in the region was undertaken with 356 conveniently selected samples. The descriptive result indicates a high level of awareness while attitude and perception recorded significant agreement to answer the research questions. The null hypothesis of non-significant effect of awareness, perception and attitude on embedded librarianship among academic librarians in university libraries in the north-east, Nigeria was rejected at F(3: 352) =2376.807, P<.0005, R2 =.953 and was replaced with the alternate hypothesis. The study concludes that academic librarians in the study area have a high awareness level, positive attitude and perception about embedded librarianship. However, the actual practice of the term is still low from the practical assessment.

scholarly journals Cestodes of Antarctic and Subantarctic fish: History and prospects of research

2020 ◽  
Vol 5 (4) ◽  
pp. 79-93
Author(s):  
T. A. Polyakova ◽  
I. I. Gordeev
Keyword(s):  
Systematic Position ◽  
Life Cycles ◽  
Fish Parasites ◽  
Intermediate Hosts ◽  
Cestode Species ◽  
Dissostichus Mawsoni ◽  
The North ◽  
The Family ◽  
Muraenolepis Marmorata ◽  
High Level

The first information about cestodes of Antarctic and Subantarctic fish appeared at the beginning of the XX century: a cestode Phyllobothrium dentatum from an unknown shark was described. Peak of activity of studying Antarctic cestodes fell on 1990–2006. During this period, significant works were published, devoted to description of new species, their life cycles, host specificity of cestodes – fish parasites, and their geographical distribution. A notable contribution to the study of elasmobranch cestodes was made by a group of Polish scientists, headed by Wojciechowska (Rocka). Systematic position of 21 cestode species from 13 genera of 8 families of 6 orders was analyzed. Cestode fauna has been studied in less than 7 % of the total ichthyofauna of this area, while potential definitive and intermediate hosts remain unexplored. The largest number of cestode species (12) was recorded in four ray species of the family Rajidae. Eight cestode species, reaching sexual maturity, have been registered in intestines of teleosts: Bothriocephalus antarcticus, B. kerguelensis, Bothriocephalus sp., Parabothriocephalus johnstoni, P. macruri, Clestobothrium crassiceps, Neobothriocephalus sp., and Eubothrium sp. Larvae of five cestode species (Onchobothrium antarcticum, Grillotia (Grillotia) erinaceus, Lacistorhynchus tenuis, Calyptrobothrium sp., and Hepatoxylon trichiuri), ending their development in elasmobranchs, were found in teleosts. Systematic position of 5 cestode species out of 12, found in rays, is unidentified. Cestode fauna is characterized by a high level of endemism: 67 % of the total cestode fauna is not found to the north of Subantarctic. Coastal areas, mostly covered by research, are those in the Atlantic and Indian sectors of Antarctic. The biodiversity of elasmobranch cestodes, inhabiting Antarctic and Subantarctic, is underestimated, since only one third of species of these fish have been studied so far. Genetic studies of Antarctic cestodes have just begun to develop. Ribosomal sequences from D1–D3 segments of 28S rDNA are known only for 2 species: Onchobothrium antarcticum from the second intermediate (Notothenia rossii and Dissostichus mawsoni) and definitive hosts (Bathyraja eatonii), as well as larvae of Calyptrobothrium sp. from the second intermediate hosts (D. mawsoni and Muraenolepis marmorata). The main directions of further research on cestode fauna should be developed in combination with morphological, faunistic, genetic, and ecological studies.

Lifestyle factors related to iodine intakes in French adults

2009 ◽  
Vol 12 (12) ◽  
pp. 2428-2437 ◽  
Author(s):  
Pierre Valeix ◽  
Patrice Faure ◽  
Sandrine Péneau ◽  
Carla Estaquio ◽  
Serge Hercberg ◽  
...  
Keyword(s):  
Disease Incidence ◽  
Cross Sectional Study ◽  
Iodine Intake ◽  
Eastern Region ◽  
Cross Sectional ◽  
The North ◽  
North Eastern ◽  
Education Levels ◽  
Dietary Records ◽  
High Level

AbstractObjectiveTo assess dietary iodine intakes among adults and to investigate the relationships of dietary, lifestyle, demographic and geographical characteristics with dietary iodine status. Adequacy of iodine intakes was also assessed.DesignCross-sectional study. Linear regression analyses and logistic regression modelling were used to determine correlates of iodine intakes. Usual iodine mean intake was calculated by averaging six 24 h dietary records completed over a 2-year period.SubjectsFemales aged 35–60 years (n 2962) and males aged 45–60 years (n 2117) living in France and who participated in the SU.VI.MAX study.ResultsIodine intakes ranged from 30·0 to 446·3 μg/d. The median iodine intake was 150·7 μg/d for males and 131·4 μg/d for females. High-level (97·5th percentile) intakes were 273·4 μg/d for males and 245·0 μg/d for females. Overall, 8·5 % of males and 20·3 % of females had intakes <100 μg/d (P < 0·001). Alcohol drinkers and smokers tended to have lower iodine intakes than abstainers or non-smokers. Regular physical activity and both intermediate and high education levels were associated with a lower risk of iodine intake of <150 μg/d. For both males and females there were significant overall regional differences (P < 0·001) in multivariate-adjusted iodine intakes, with higher adjusted iodine intakes in Brittany and Normandy than in the north-eastern region.ConclusionsOur data show a borderline low iodine intake in this middle-aged French population. However, differences in iodine intakes may contribute to explaining only a small part of the effects of sex and age on thyroid disease incidence.

scholarly journals The physiological state of the larvae and infestation of domestic ungulates by Echinococcus granulosus (Cyclophyllidea, Taeniidae) in North-Eastern Ukraine

2016 ◽  
Vol 24 (2) ◽  
Author(s):  
A. M. Yemets ◽  
V. M. Demenko ◽  
V. V. Kabanyets
Keyword(s):  
Echinococcus Granulosus ◽  
Physiological State ◽  
Steppe Zone ◽  
Forest Steppe ◽  
Intermediate Hosts ◽  
North East ◽  
The North ◽  
Worldwide Distribution ◽  
Level Of Invasion ◽  
North Eastern

Echinococcus granulosus (Batsch, 1786) has a worldwide distribution. Different types of carnivores (dogs, jackals, wolves, foxes), domestic and wild ungulates are included in its life cycle. There are significant differences in its pattern of contamination of domestic ungulates in the various regions of Ukraine. Pigs are major intermediate hosts of E. granulosus in the northern and western regions of the country, sheep and cattle in the southern and eastern regions. These differences are associated with strains of Echinococcus. The article presents the results of research conducted on 1,884 pigs, 1,025 sheep and 1,406 cattle in Polesia and the forest-steppe zone of the north-east of Ukraine. We have established the development of Echinococcus larvae in pigs (extent of invasion 10.2 ± 0.6%) and sheep (extent of invasion 0.7 ± 0.2%). The cysts did not develop in cattle. Pigs generally had a low invasion intensity (less than 6 larvae). A high level of invasion intensity (more than 10 larvae) was infrequently recorded in these animals. All sheep had a low level of invasion intensity.The E. granulosus larvae found in sheep were dead. In pigs, most cysts developed to fertile state (139 cases). Young, sterile and dead larvae were less common (39, 10, 4 cases). Pigs older than 10 months had the highest number of fertile cysts. Young larvae dominated in pigs younger than 10 months. In these animals, larvae were localized predominantly in the liver. The kidneys and lungs were infected less frequently. The large number of fertile cysts in pigs older than 10 months made this group of animals the main intermediate hosts of E. granulosus in the north-eastern part of Ukraine. They enable the parasite to function actively here. Analysis of infestation by E. granulosus larvae of domestic ungulates of the Polesia and the forest-steppe zone showed no significant differences. Identified differences were not statistically confirmed. 

scholarly journals An investigation of the effects of ethno-religious conflicts on security in Taraba State, Nigeria, 1991-2020

2021 ◽  
Vol 2 (2) ◽  
pp. 16-26
Author(s):  
Atando D. Agbu ◽  
◽  
Elijah I. Akombo ◽  
Ruth S. Agbu ◽  
◽  
...  
Keyword(s):  
Eastern Region ◽  
Political Crises ◽  
The North ◽  
Religious Conflicts ◽  
Security Challenges ◽  
First Republic ◽  
North Eastern ◽  
Economic Developments ◽  
High Level ◽  
People's Congress

Since independence, Nigeria has been experiencing high level of violence, crime and criminality in all geo-political zones, posing great threat to national security, and social, political and economic development. Such disturbing phenomena include the political crises of the First Republic; the religious crisis of the 1980s; the ethno-religious crises of the post-1999 era; the activities of Oodua People’s Congress (OPC) and Bakassi boys; the Niger-Delta crisis; to the insurgency in the North-Eastern region and armed-herdsmen violence, particularly in the Middle-Belt region. All these phenomena have created disturbing security challenges to the peoples of the immediate environments of the incidents, and the whole nation, thus affecting nation-building. This paper adopts a multi-disciplinary approach, examines the security challenges posed by ethno-religious conflicts, particularly in Taraba State of Nigeria. The research interrogates the challenges posed by the phenomena mentioned, and finds, among other things, that in the past 60 years, the incidents have significantly contributed to the slow pace of social, political and economic developments in the area. The paper suggests, among other things, tolerance and responsive governance, to curtail envisaged security challenges facing Taraba State, and Nigeria in general.

The Litoria ewingi complex (Anura : Hylidae) in south-eastern Australia I A new species from Victoria

1971 ◽  
Vol 19 (4) ◽  
pp. 401 ◽  
Author(s):  
GF Watson ◽  
JJ Loftus-Hills ◽  
MJ Littlejohn
Keyword(s):  
New Species ◽  
Reproductive Isolation ◽  
Morphological Differentiation ◽  
The North ◽  
Isolating Mechanisms ◽  
Eastern Australia ◽  
North Eastern ◽  
Morphological Differences ◽  
High Level ◽  
A New Species

Populations of the L. ewingi complex in central and north-eastern Victoria are described as a new species (L. paraewingi) following a study of levels of reproductive isolation and morphological differentiation from other members of the complex. In the south the new species is broadly sympatric with L. verreauxi, but is contiguously allopatric with L. ewingi at the north-eastern and south-western borders of its distribution. Pre-mating isolating mechanisms between L, paraewingi and L. ewingi are not well developed; however, a high level of post-mating isolation exists between the two species. Morphological differences were found between L. paraewingi and populations of L. ewingi from southern Victoria and Tasmania, but populations in north-eastern Victoria are morphologically similar.

Fasciolеsis in the subjects of the North Caucasus as a probable biological, epidemiological and epizootic threat to the population and animal husbandry

2021 ◽  
Vol 1 (7) ◽  
pp. 63-71
Author(s):  
A. M. Bittirov ◽  
◽  
S. A. Shemyakova ◽  
B. K. Laipanov ◽  
K. Kh. Bolatchiev ◽  
...  
Keyword(s):  
Risk Index ◽  
Animal Husbandry ◽  
Well Being ◽  
Fasciola Gigantica ◽  
Intermediate Hosts ◽  
North Caucasus ◽  
Climatic Zones ◽  
The North ◽  
Southern Russia ◽  
High Level

When analyzing statistical materials from 32 polyclinics in 15 cities of the North Caucasus (Grozny, Gudermes, Argun, Magas, Nazran, Vladikavkaz, Beslan, Ardon, Karachaevsk, Cherkessk , Nalchik, Nartkala, Baksan, Prokhladny and Mayskiy) in 18,0 thousand samples of feces, the indices of occurrence per 100 thousand of population and abundance of F. gigantica eggs were 0, which indicates an epidemic the well-being of the region in relation to zoonosis, thanks to the program organization of health education of the population. At the same time, for fascioliasis (Fasciola gigantica) of sheep, cattle and buffaloes, all 5 Republics of the North Caucasus belong to the disadvantaged regions of southern Russia with a critical risk index for the biosafety of livestock industries in all climatic zones of the subject due to the weak and half implementation of antiepizootic measures. In 5 Republics of the North Caucasus in 2011–2019. The indices of the incidence and abundance of fascioliasis in sheep, cattle and buffaloes increased by 2–3 times, which indicates the threat of invasion to the efficiency of livestock subsectors in the region. Our data indicate a high level of sanitary contamination of the soils of near-village pastures in the plain and foothill zones of all subjects of the North Caucasus with invasive elements of the causative agent of giant fascioliasis and their absence in the soils of distant pastures. In 100% of soil samples from rural pastures in the plain and foothill zone, invasive eggs of Fasciola gigantica were identified, which, according to forecasts, may lead to the spread of parthenitis among intermediate hosts, followed by the spread of invasion among the population of 5 regions, such as the Chechen and Ingush Republics, RNOAlania, Kabardino-Balkarian and Karachay-Cherkess Republics.

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