Volume 02 Issue 12-2022
31
American Journal Of Agriculture And Horticulture Innovations
(ISSN
–
2771-2559)
VOLUME
02
I
SSUE
12
Pages:
31-35
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MPACT
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(2021:
5.
705
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(2022:
5.
705
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Oscar Publishing Services
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ABSTRACT
The article discusses the dynamics of infestation by helminth larvae of Candaharia levanderi Simroth, 1901 is based on
the dependence of population density of this species
KEYWORDS
Candaharia lavender, helminth larvae, invasion dynamics, population density.
INTRODUCTION
In recent years, the sharp expansion of the agricultural
production of our country has various effects on the
modern state of land molluscs in the developed areas.
The development of protected lands and the
development of animal husbandry, on the one hand,
caused the reduction of the areas where rare and
endemic species of land molluscs are distributed and
the crisis of their populations, on the other hand, the
increase in the number of some harmful species of land
molluscs, the increase in the rate of damage to
nutritious plants of livestock importance, and the
parasitic larvae of livestock leads to the expansion of
the scope of the disease. From this point of view, in
addition to determining the species composition of
land molluscs in changing local areas, assessing the
status of populations of rare species, studying their
economic importance, and developing effective
Research Article
DYNAMICS OF INFESTATION WITH HELMINT LARVAE OF CANDAHARIA
LAVENDERI SIMROTH, 1901
Submission Date:
December 13, 2022,
Accepted Date:
December 18, 2022,
Published Date:
December 23, 2022
Crossref doi:
https://doi.org/10.37547/ajahi/Volume02Issue12-06
Abdulazizova Shoira Karimovna
Termez State University, Docent, Termez, Uzbekistan
Abdulloyeva Dilnoza Boboismoilovna
Termez State University, Docent, Termez, Uzbekistan
Journal
Website:
https://theusajournals.
com/index.php/ajahi
Copyright:
Original
content from this work
may be used under the
terms of the creative
commons
attributes
4.0 licence.
Volume 02 Issue 12-2022
32
American Journal Of Agriculture And Horticulture Innovations
(ISSN
–
2771-2559)
VOLUME
02
I
SSUE
12
Pages:
31-35
SJIF
I
MPACT
FACTOR
(2021:
5.
705
)
(2022:
5.
705
)
OCLC
–
1290679216
METADATA
IF
–
5.625
Publisher:
Oscar Publishing Services
Servi
methods of combating harmful species are of great
scientific and practical importance.
Studying the taxonomic composition and distribution
of land molluscs, which are the main causes of certain
types of parasitic diseases spread in Central Asia, and
the molluscs involved as intermediate hosts is one of
the main problems for today.
The degree of contamination of land mollusks with
protostrongylid larvae distributed in different
landscapes of the south of Uzbekistan was studied by
E.N. Kulmamatov and others, in the life cycle and
circulation
of
protostrongylids
Xeropicta.
candacharica,
Subzebrinus
(Pseudonapaeus)
albiplicatus, Subz (Ps.) sogdianus species have been
found to play an important role [1].
Currently, the taxonomic composition of land molluscs
that participate as intermediate hosts of helminths in
Uzbekistan A. Pazilov, A. Kuchbaev [4], the taxonomic
composition of helminth larvae found in land molluscs
A. It is studied by Kuchbaev [2.], A.E. Kuchbaev, M.
Egamberdiev and others [3].
However, the study of the degree of helminth larvae
infestation of terrestrial molluscs common in the
Surkhan-Sherabad
valley
and
its
surrounding
mountains is currently fragmentary, and some species
distributed around the village of Khatak of the
Kohitang mountain range were partially studied by
Kuchbaev, Egamberdiev and others. In the rest of the
regions, this problem remains unsolved [3] .
Therefore, the purpose of our research work was to
study the degree of infection of C. lavenderi species
with helminth larvae and its dependence on population
density.
The degree of infection of C. lavenderi species with
helminth larvae was studied in the southeastern part of
the Kohitang mountain range from the village of
Aktash to the village of Vandob and from there in the
north-west direction, in the areas of the Vandob
section of the Surkhan state reserve.
According to the results of the conducted research,
the species C. lavenderi is unevenly distributed by
altitude regions and biotopes. For example, in the
desert region: among the grass on the banks of
streams, under the trees in gardens, among the plant
cover in the undeveloped areas of the land near water
bodies, in the hill region: on the slopes where semi-
shrub plants grow and among the stone piles, in the
stone piles between the grass in the land near the
water bodies, in the mountain in the region, among
shrubs and trees, living under stones between grass
plants, the population density and level of helminth
infection are as follows (table).
According to the data in the table, the dynamics of
infestation of C. lavenderi species with helminth larvae
differ by biotopes and altitude regions. For example, in
the desert region, 1 out of 60 molluscs distributed
among plants under trees in gardens is infected with
larvae, and the infestation is equal to 1.66%, while in
those living among vegetation in undeveloped areas
near water bodies, the infestation is equal to 12.30%, in
the hilly region, the same and in such a biotope, this
indicator is 13.33%. In the mountain region, 1 out of 60-
65 molluscs is affected, equal to 1.53%, 1.66%.
Table
Distribution of the species C. lavenderi by altitude regions and biotopes and infestation level by helminth larvae
Volume 02 Issue 12-2022
33
American Journal Of Agriculture And Horticulture Innovations
(ISSN
–
2771-2559)
VOLUME
02
I
SSUE
12
Pages:
31-35
SJIF
I
MPACT
FACTOR
(2021:
5.
705
)
(2022:
5.
705
)
OCLC
–
1290679216
METADATA
IF
–
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Publisher:
Oscar Publishing Services
Servi
Researched biotopes
and the population
density of molluscs in
them
Altitude regions
Desert
Hill
Mountain
Tot
al st
ud
ie
d
Da
ma
ge
d
IE
%
Tot
al st
ud
ie
d
Da
ma
ge
d
IE
%
Tot
al st
ud
ie
d
Da
ma
ge
d
IE
%
Among the grass on
the banks of the
stream (7-8 per 1m
2
)
55
3
5,45
-
-
-
-
-
-
Between plants under
trees in gardens (5-6
per 1m
2
)
60
1
1,66
-
-
-
-
-
-
Plant
cover
in
undeveloped
areas
near water bodies
(10-12 per 1m
2
)
65
8
12,3
-
-
-
-
-
-
Slopes with semi-
shrub plants (8-9 per
1m
2
)
-
-
-
60
4
6,66
-
-
-
Volume 02 Issue 12-2022
34
American Journal Of Agriculture And Horticulture Innovations
(ISSN
–
2771-2559)
VOLUME
02
I
SSUE
12
Pages:
31-35
SJIF
I
MPACT
FACTOR
(2021:
5.
705
)
(2022:
5.
705
)
OCLC
–
1290679216
METADATA
IF
–
5.625
Publisher:
Oscar Publishing Services
Servi
Between grasses and
under piles of stones
in lands near water
bodies (13-15 per
1m
2
)
-
-
-
60
8
13,33
-
-
-
Between shrubs and
trees (12-14 per 1m
2
)
-
-
-
-
-
-
65
1
1,53
Under
stones
between grasses (10-
12 per 1m
2
)
-
-
-
-
-
-
60
1
1,66
According to the results of the research, the high level
of invasion of land molluscs distributed in biotopes
with helminth larvae depends on the density of the
mollusc population based on the characteristics of the
biotope and its microclimate. For example, in the
desert region under the vegetation cover of
undeveloped areas near water bodies or in such a
biotope in the hilly region, the population density of
molluscs is high (12-15 molluscs per 1 m2), and the level
of infestation with helminth larvae is 12.30% to 13.33%.
constitutes
Therefore, the higher the density of molluscs in the
population, the higher the level of infestation with
helminth larvae.
However, in the mountain region of the Kohitang
mountain range, the population density of molluscs is
high, but the invasion rate is low (table). This is due to
the fact that the research area in the mountain region
is in the Vandob section of the Surkhan State Reserve,
and the use of these lands as pasture is prohibited. This
situation results in less contact between the mollusc
and the larva, and accordingly infestation may be
lower.
REFERENCES
1.
Кулмаматов Э.Н., Исакова Д.Т., Азимов Д.А.
Гельминты позвоночных горных экосистем
Узбекиста. –
Ташкент: Фан, 1994. –
С. 71
-72.
Volume 02 Issue 12-2022
35
American Journal Of Agriculture And Horticulture Innovations
(ISSN
–
2771-2559)
VOLUME
02
I
SSUE
12
Pages:
31-35
SJIF
I
MPACT
FACTOR
(2021:
5.
705
)
(2022:
5.
705
)
OCLC
–
1290679216
METADATA
IF
–
5.625
Publisher:
Oscar Publishing Services
Servi
2.
Кучбоев А.Э. Популяционная экология,
систематика
нематод
семейства
Protostrongylidae
и
функционально
-
метаболические
процессы
в
системе
“паразит
-
хозяин”.: Автореф. дис. ...док.
биол.наук. –
Ташкент, 2009. –
43 с.
3.
Кучбаев А.Э., Эгамбердиев М., Каримова Р.,
Пазилов
А.
Наземные
моллюски
-
промежуточные хозяева протостронглид //
Узбекский биол. журн. –
Ташкент, 2018.
-
№1.
–
С. 15
-20.
4.
Пазилов А., Кучбаев А. Ўзбекистонда уй ва
ёввойи
ҳ
айвонлар
гельминтларининг
орали
қ
хўжайини
-
қ
уру
қ
лик
моллюскалар
(
Ани
қ
лагич
-
Атлас
).
–
Тошкент, 2017. –
79 б.
