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Monitoring of helminth fauna of transhumant cattle in the North Caucasus
https://doi.org/10.29326/2304-196X-2024-13-2-143-148
Abstract
The helminth fauna of cattle in the Russian Federation is represented, on average, by 80 parasite species, including 10 trematode species, 13 cestode species and 57 nematode species. In Kabardino-Balkaria and Dagestan, up to 65–100% of cattle population are Strongylata and Anoplocephalata infected, up to 87% are Dicrocoelium infected, up to 40% are Fasciola infected, and up to 23% are Echinococcus infected. Continuous helminth fauna monitoring tests and studies of the epizootic patterns of helminth infections in transhumant livestock in the North Caucasus are an urgent task. Parasitological examinations were carried out on the farms of the Kabardino-Balkarian Republic that practise vertical transhumance at different altitudes in 2018–2022. The animals of various ages were observed on a year-round basis. The examinations covered transhumant cattle in the subalpine and alpine-subnival subzones of the mountain zone of the Republic, 100 animals per subzone. In the subalpine subzone of the mountain zone of Kabardino-Balkaria, 25 helminth species were detected in the transhumant cattle in the summer and autumn periods, and 7–11 helminth species were detected in the winter and spring periods. The following species prevailed: Dicrocoelium lanceatum, Paramphistomum cervi, Trichostrongylus axei, Trichostrongylus colubriformis, Oesophagostomum radiatum, Bunostomum trigonocephalum, Nematodirus helvetianus, Nematodirus spathiger, Ostertagia ostertagi, Teladorsagia circumcincta, Ostertagiella occidentalis, Haemonchus placei. In the alpine-subnival subzone of the mountain zone of the Republic, 16 helminth species were detected in the transhumant cattle in the summer and autumn periods, and 3–7 helminth species were detected in the winter and spring periods. The following species were found to prevail in this subzone: Trichostrongylus colubriformis, Bunostomum trigonocephalum, Dicrocoelium lanceatum, Nematodirus helvetianus, Ostertagia ostertagi, Teladorsagia circumcincta, Haemonchus placei, Oesophagostomum radiatum.
Keywords
cattle,
transhumance,
helminths,
fauna,
species,
extensity,
intensity,
invasion,
North Caucasus,
Kabardino-Balkaria
Supporting agencies: The study was carried out within the topic: “Molecular biological and nanobiotechnological methods for development of new generation biologicals, technologies and their methods of application to control highly dangerous infectious, parasitic and non-contagious animal diseases”.
For citations:
Kabardiev S.Sh., Musaev Z.H., Karpuschenko K.A., Shapiev B.I. Monitoring of helminth fauna of transhumant cattle in the North Caucasus. Veterinary Science Today. 2024;13(2):143-148. https://doi.org/10.29326/2304-196X-2024-13-2-143-148
INTRODUCTION
The North Caucasus is one of the main livestock farming regions of Russia, which is characterized by well-developed sheep farming, dairy and beef cattle farming. Global changes that have taken place in these territories, large numbers of ruminants concentrated within small areas and transhumance create conditions for invasion occurrence [1][2][3][4].
Data on the biology, ecology of agents and the epizootiology of helminthoses in cattle are required to address a variety of theoretical and practical tasks: the detection of infection risk factors in the environment; the assessment of effectiveness of diagnostic, therapeutic, preventive, anti-epizootic measures; the improvement of epizootiological surveillance and strategies aimed at the prevention of parasitic animal diseases [5][6][7][8].
It is known that the development of the epizootic process of many diseases, including helminthoses, is influenced by physical and climatic, as well as economic and ecological factors existing in the regions [9][10][11][12][13][14].
Transhumance has a significant impact on animal helminthosis situation [15][16].
Cattle in the Russian Federation is infected, on average, with 80 helminth species, including 10 trematode species, 13 cestode species and 57 nematode species [17][18][19][20].
In Kabardino-Balkaria and Dagestan, up to 65–100% of cattle population are Strongylata and Anoplocephalata infected, up to 87% are Dicrocoelium infected, up to 40% are Fasciola infected, and up to 23% are Echinococcus infected [21].
In the Chechen Republic, cattle parasites are represented by 57 species (6 trematode species, 7 cestode species, 44 nematode species) [6][22][23][24].
The specific features of parasite spread depending on the altitudinal zone (subzone), infection occurrence indicators, the epizootic patterns of helminth infections in cattle in the region are under-studied. Therefore, the effectiveness of helminthosis control in animals will depend on making use of knowledge of the agent species composition, epizootiology, seasonal and age-related dynamics, while taking into account the altitudinal zones (subzones) of the region [25].
The aim of the study is the monitoring of helminth fauna and the investigation of the epizootic patterns of helminth infections in transhumant cattle in the North Caucasus.
MATERIALS AND METHODS
Monitoring tests were carried out on the farms of the Republic of Kabardino-Balkaria that practise vertical transhumance at different altitudes in 2018–2022. Laboratory tests were conducted in accordance with GOST R 54627-2011 “Agricultural ruminant animals. Methods of laboratory helminthology diagnostics”1. Animal necropsies were performed using K. I. Skryabin’s method of complete helminthological necropsy (1928) at the Laboratory for the Study of Invasive Diseases of Farm Animals and Birds of the Caspian Zonal Research Veterinary Institute and at the Chair of Veterinary Medicine of the Kabardino-Balkarian State Agricultural University named after V. M. Kokov.
The animals of various ages were observed on a year-round basis. The examinations covered transhumant cattle in the subalpine and alpine-subnival subzones of the mountain zone, 100 animals per subzone.
The differentiation of invasion in the animals, including species confirmation, was carried out using the Identification guide to cattle helminths [26].
The data obtained were statistically processed with the Biometrics software (Centre for Biometric Technologies, Russia).
RESULTS AND DISCUSSION
The tests performed revealed that the helminth fauna of transhumant cattle in the subalpine subzone of the mountain zone of the Republic of Kabardino-Balkaria is represented by 25 species in the summer and autumn periods and by 7–11 species in the winter and spring periods (Table 1).
Table 1
Helminth fauna of transhumant cattle in the subalpine subzone of the mountain zone
(based on the findings from helminthological dissections of organs and tissues)
|
No. |
Species |
Cattle (n = 100) |
||
|
Number of infected animals |
IE, % |
Mean II, parasites/animal |
||
|
1 |
D. lanceatum (Stiles et Hassall, 1896) |
57 |
57.0 |
142.6 ± 11.4 |
|
2 |
F. hepatica (Linnaeus, 1758) |
18 |
18.0 |
16.8 ± 2.1 |
|
3 |
P. cervi (Zeder, 1790) |
43 |
43.0 |
104.0 ± 9.7 |
|
4 |
E. granulosus (Batsch, 1786) |
22 |
22.0 |
20.2 ± 3.0 |
|
5 |
T. hydatigena, larvae (Pallas, 1766) |
13 |
13.0 |
9.4 ± 1.0 |
|
6 |
M. expansa (Rudolphi, 1810) |
20 |
20.0 |
3.3 ± 0.5 |
|
7 |
M. benedeni (Moniez, 1879) |
19 |
19.0 |
2.4 ± 0.3 |
|
8 |
T. axei (Cobbold, 1879) |
88 |
88.0 |
243.6 ± 22.5 |
|
9 |
T. colubriformis (Giles, 1892) |
71 |
71.0 |
187.8 ± 19.3 |
|
10 |
T. vitrinus (Looss, 1905) |
32 |
32.0 |
104.7 ± 11.8 |
|
11 |
Oes. radiatum (Rudolphi, 1803) |
48 |
48.0 |
109.2 ± 12.6 |
|
12 |
Oes. venulosum (Rudolphi, 1809) |
35 |
35.0 |
73.4 ± 8.3 |
|
13 |
B. trigonocephalum (Rudolphi, 1808) |
62 |
62.0 |
81.2 ± 7.5 |
|
14 |
B. phlebotomum (Railliet, 1900) |
36 |
36.0 |
60.4 ± 6.7 |
|
15 |
N. helvetianus (May, 1920) |
69 |
69.0 |
159.3 ± 17.5 |
|
16 |
N. spathiger (Railliet, 1896) |
55 |
55.0 |
133.4 ± 14.2 |
|
17 |
N. oiratianus (Rajevskaja, 1929) |
38 |
38.0 |
97.3 ± 10.5 |
|
18 |
N. filicollis (Rudolphi, 1802) |
25 |
25.0 |
66.5 ± 8.8 |
|
19 |
O. ostertagi (Stiles, 1892) |
80 |
80.0 |
254.0 ± 24.3 |
|
20 |
Т. circumcincta (Stadelman, 1894) |
69 |
69.0 |
198.6 ± 20.9 |
|
21 |
O. occidentalis (Ransom, 1907) |
53 |
53.0 |
111.0 ± 13.6 |
|
22 |
P. hobmaeri (Schulz, Orlow & Kutass, 1933) |
12 |
12.0 |
21.7 ± 3.1 |
|
23 |
H. placei (Place, 1893) |
59 |
59.0 |
92.0 ± 8.3 |
|
24 |
C. punctata (Linstow, 1907) |
23 |
23.0 |
41.4 ± 3.9 |
|
25 |
D. viviparus (Bloch, 1782) |
18 |
18.0 |
15.8 ± 2.3 |
IE – invasion extensity, II – invasion intensity.
The trematode and cestode species composition in the cattle in this altitudinal subzone includes: Dicrocoelium lanceatum, Fasciola hepatica, Paramphistomum cervi, Echinococcus granulosus, Taenia hydatigena (larvae), Moniezia expansa, Moniezia benedeni. Depending on the parasite species, invasion extensity in the animals ranged from 13.0 to 57.0%, and invasion intensity ranged from (2.4 ± 0.3) to (142.6 ± 11.4) parasites/animal.
The tests revealed the presence of the following intestinal and lung nematodes (without intermediate hosts) at different life cycle stages in the cattle: Ostertagia ostertagi, Teladorsagia circumcincta, Ostertagiella occidentalis, Trichostrongylus axei, Trichostrongylus colubriformis, Trichostrongylus vitrinus, Oesophagostomum radiatum, Oesophagostomum venulosum, Protosrongylus hobmaeri, Bunostomum trigonocephalum, Bunostomum phlebotomum, Haemonchus placei, Cooperia punctata, Nematodirus filicollis, Nematodirus helvetianus, Nematodirus oiratianus, Nematodirus spathiger, Dictyocaulus viviparous. Depending on the parasite species, significant differences in invasion extensity, which ranged from 12.0 to 88.0%, and invasion intensity, which ranged from (15.8 ± 2.3) to (254.0 ± 24.3) parasites/animal, were detected.
The helminth fauna of transhumant cattle in the alpine-subnival subzone of the mountain zone is represented by 16 species (Table 2) in the summer and autumn periods and by 3–7 species in the winter and spring periods.
In the alpine-subnival subzone of the mountain zone, invasion extensity and invasion intensity in the cattle ranged from 6.0 to 57.0% and from 2 to 190 parasites/animal, respectively. The following species were found to prevail in this subzone: Trichostrongylus colubriformis, Bunostomum trigonocephalum, Dicrocoelium lanceatum, Nematodirus helvetianus, Ostertagia ostertagi, Teladorsagia circumcincta, Haemonchus placei, Oesophagostomum radiatum.
Table 2
Helminth fauna of transhumant cattle in the alpine-subnival subzone of the mountain zone
(based on the findings from helminthological dissections of organs and tissues)
|
No. |
Species |
Cattle (n = 100) |
||
|
Number of infected animals |
IE, % |
II range, parasites/animal |
||
|
1 |
D. lanceatum (Stiles et Hassall, 1896) |
49 |
49.0 |
17–113 |
|
2 |
E. granulosus (Batsch, 1786, Rudolphi, 1801) |
14 |
14.0 |
3–17 |
|
3 |
T. hydatigena, larvae (Pallas, 1766) |
6 |
6.0 |
2–10 |
|
4 |
M. benedeni (Moniez, 1879) |
11 |
11.0 |
2–6 |
|
5 |
T. colubriformis (Giles, 1892) |
57 |
57.0 |
30–144 |
|
6 |
Oes. radiatum (Rudolphi, 1803) |
36 |
36.0 |
21–115 |
|
7 |
Oes. venulosum (Rudolphi, 1809) |
27 |
27.0 |
24–90 |
|
8 |
B. trigonocephalum (Rudolphi, 1808) |
53 |
53.0 |
21–119 |
|
9 |
B. phlebotomum (Railliet, 1900) |
32 |
32.0 |
30–80 |
|
10 |
N. helvetianus (May, 1920) |
48 |
48.0 |
35–141 |
|
11 |
N. spathiger (Railliet, 1896) |
34 |
34.0 |
14–66 |
|
12 |
O. ostertagi (Stiles, 1892) |
46 |
46.0 |
33–150 |
|
13 |
Т. circumcincta (Stadelman, 1894) |
45 |
45.0 |
20–190 |
|
14 |
H. placei (Place, 1893) |
40 |
40.0 |
19–121 |
|
15 |
D. viviparus (Bloch, 1782) |
11 |
11.0 |
4–16 |
|
16 |
P. hobmaeri (Schulz, Orlow & Kutass, 1933) |
12 |
12.0 |
3–11 |
IE – invasion extensity, II – invasion intensity.
CONCLUSION
Twenty-five helminth species were detected in the cattle in the subalpine subzone of the mountain zone of Kabardino-Balkaria. The helminth species composition was characterized by seasonal variations. Depending on the species, trematode and cestode invasion extensity in the animals ranged from 13.0 to 57.0%, and invasion intensity ranged from (2.4 ± 0.3) to (142.6 ± 11.4) parasites/animal. Significant differences in the extensity of invasion with intestinal and lung nematodes (18 species) with direct life cycle (without intermediate hosts), which ranged from 12.0 to 88.0%, and the intensity of invasion, which ranged from (15.8 ± 2.3) to (254.0 ± 24.3) parasites/animal, were detected in the transhumant cattle in this altitudinal subzone.
The helminth fauna of transhumant cattle in the alpine-subnival subzone of the mountain zone is represented by 16 species with a similarity coefficient of 1. Invasion extensity and invasion intensity in the cattle ranged from 6.0 to 57.0% and from 2 to 190 parasites/animal, respectively. The following species prevailed: Trichostrongylus colubriformis, Bunostomum trigonocephalum, Dicrocoelium lanceatum, Nematodirus helvetianus, Ostertagia ostertagi, Teladorsagia circumcincta, Haemonchus placei, Oesophagostomum radiatum.
Thus, the current cattle helminthosis situation in the region requires regular monitoring, as well as the improvement of measures aimed at parasitic disease control.
1. https://docs.cntd.ru/document/1200094391
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About the Authors
S. Sh. Kabardiev
Caspian Regional Research Veterinary Institute – Branch of Dagestan Agriculture Science Center
Russian Federation
Russian Federation
Sadrutdin Sh. Kabardiev, Dr. Sci. (Veterinary Medicine), Chief Researcher, Head of the Laboratory for the Study of Invasive Diseases of Farm Animals and Poultry
88 Dakhadaeva str., Makhachkala 367000, Republic of Dagestan
Z. H. Musaev
Caspian Regional Research Veterinary Institute – Branch of Dagestan Agriculture Science Center
Russian Federation
Russian Federation
Zeydullakh H. Musaev, Cand. Sci. (Biology), Leading Researcher, Laboratory for the Study of Invasive Diseases of Farm Animals and Poultry
88 Dakhadaeva str., Makhachkala 367000, Republic of Dagestan
K. A. Karpuschenko
Caspian Regional Research Veterinary Institute – Branch of Dagestan Agriculture Science Center
Russian Federation
Russian Federation
Karine A. Karpuschenko, Cand. Sci. (Veterinary Medicine), Leading Researcher
88 Dakhadaeva str., Makhachkala 367000, Republic of Dagestan
B. I. Shapiev
Dagestan State Medical University of the Ministry of Healthcare of the Russian Federation
Russian Federation
Russian Federation
Bammatgerey I. Shapiev, Cand. Sci. (Chemistry), Head of Biochemical Laboratory, Associate Professor, Department of General and Biological Chemistry
1 Lenin Sq., Makhachkala 367000, Republic of Dagestan
Review
For citations:
Kabardiev S.Sh., Musaev Z.H., Karpuschenko K.A., Shapiev B.I. Monitoring of helminth fauna of transhumant cattle in the North Caucasus. Veterinary Science Today. 2024;13(2):143-148. https://doi.org/10.29326/2304-196X-2024-13-2-143-148
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