Intestinal Helminths and the Influence of Environmental Factors on Cattle Infection in the Altai Mountains

The purpose of the research: comparative assessment of cattle infection with intestinal helminths in various provinces and characteristics of the relationship between abiotic and anthropogenic environmental factors with the level of infection and the number of helminths in the Altai Mountains.
Materials and methods. According to the results of long-term (2010–2019) ovolarvoscopic examinations, more than 2.4 thousand heads of cattle from 7 regions of the Altai Republic characterized by extensity of infection (EI) and the number of helminth eggs in 1 g of feces (NHE/g) in animals. By correlation analysis, the association of animal EI with helminths, NHE/g and abiotic and anthropogenic environmental factors in the context of farms and regions of the Altai Mountains is shown. The following parameters are estimated: long-term average annual temperature, long-term average annual rainfall, longterm average summer temperature, long-term average summer rainfall, altitude above the sea level, population density of the host, the effect of parasiticidal treatments of animals on parasite infection.
Results and discussion. It was found that animals are mostly infected with intestinal helminths in the Choy region, where the EI was 61.7% when detecting NHE/g 81.8 pcs. Minimal infection of cattle by helminths was recorded in the Kosh-Agach region – 38.8% with NHE/g of 22.9 pcs. In the whole country, EI of animals is 51.8% with an egg number of 44.1 individuals in 1 g of feces. Within the physical-geographical provinces, cattle are mostly infected in Central Altai (EI – 56.5%, NHE/g – 43.6 pcs.), to a lesser extent in Southeast Altai (EI – 38.8%, NHE/g – 22.9 pcs.). According to the results of ovoscopic examinations, it was found that the most significant factors affecting the infection of animals with intestinal helminths in farms are the long-term average annual precipitation (r = 0.60 and 0.34) and the degree of anthropogenic pressure (r = -0.52 and -0.59), in the context of districts, long-term average annual temperatures (r = 0.65 and 0.55), average annual summer rainfall (r = 0.74 and 0.65). According to larvoscopy, the most significant environmental factors affecting cattle infection are long-term average annual temperature (r = 0.62 and 0.72), long-term average annual rainfall (r = 0.76) and elevation (r = -0.71 and -0.73), in farms – the degree of anthropogenic press (r = -0.65 and -0.78).

1. Altai Territory. Atlas. Vol. 1. Head of management of geodesy and cartography under the Council of Ministers of the USSR. Moscow-Barnaul, 1978; 222. (In Russ.)

2. Vasilevich F. I., Shemyakova S. A. Influence of climatic conditions on the spread of fasciolosis in cattle in the Moscow region. Materialy V Mezhdunarodnoy nauchno-prakticheskoy konferentsii assotsiatsii parazitotsenologov = Materials of V International Scientific and Practical Conference of the Association of Parasitologists. Vitebsk, 2016; 21–23. (In Russ.)

3. Gorokhov V. V., Samoilovskaya N. A., Uspensky A. V. et al. The current epizootic situation and prognosis of the main animal helminthoses in Russia for 2015. Rosiyskiy parazitologicheskiy zhurnal = Russian Journal of Parasitology. M., 2015; 1: 41–45. (In Russ.)

4. Gorokhov V. V., Klenova I. F., Puzanova E. V. State of art epidemic situation and prognosis by major helminthoses of animals within the Russian Federation for 2018 (spring and the beginning of the grazing season). Rosiyskiy parazitologicheskiy zhurnal = Russian Journal of Parasitology. 2018; 12 (2): 23–26. (In Russ.)

5. Efremova E. A. The concept of controlling the epizootic process of helminthiases. Mater. dokl. nauch. konf. Vseros. o-va gel’mintol. RAN «Teoriya i praktika bor’by s parazitarnymi boleznyami» = Materials of the research and practice conference of AllRussian Helminthologist Society of Russian Academy of Sciences “Theory and practice of protection from parasitic diseases". M., 2007; 8: 132–135. (In Russ.)

6. Efremova E. A., Erdenezhargal Dashsuren Biological basis for the prevention of zohelmintosis of farm animals. Sibirskiy vestnik sel'skokhozyaystvennoy nauki = Siberian Bulletin of Agricultural Science. Krasnoobsk, 2012; 1 (224): 85–92. (In Russ.)

7. Karmaliyev R. S., Akhmedenov K. M., Sidikhov B. M., Aytuganov B. E., Usenov Zh. T., Ertleuova B. O., Gabdullin D. E., Aliyev E. M. Helminths infection of cattle depending on natural climatic conditions of West Kazakhstan region. Rossiyskiy parazitologicheskiy zhurnal = Russian Journal of Parasitology. M., 2019; 13 (1): 16–22. (In Russ.)

8. Karmaliev R. S. The ability to predict cattle helminth infections in the West Kazakhstan region depending on meteorological conditions. Rossiyskiy parazitologicheskiy zhurnal = Russian Journal of Parasitology. M., 2011; 3: 33–39. (In Russ.)

9. Kotelnikov G. A. Helminthological studies of animals and the environment. M.: Kolos, 1983; 208. (In Russ.)

10. Lazarev G. M. Influence of spring drought on the dynamic’s algorithm of sheep geohelminthosis in the arid zone. Mater. dokl. nauch. konf. Vseros. o-va gel’mintol. RAN «Teoriya i praktika bor’by s parazitarnymi boleznyami» = Materials of the research and practice conference of All-Russian Helminthologist Society of Russian Academy of Sciences “Theory and practice of protection from parasitic diseases". M., 2007; 8: 181–183. (In Russ.)

11. Marchenko V. A., Efremova E. A., Kashirskikh T. P. et al. A unified system of treatment and prophylactic measures for zooparasitosis in dairy cattle in the Republic of Altai: a methodological guide. Novosibirsk – Gorno-Altaysk, 2014; 51. (In Russ.)

12. Marchenko V. A., Vasilenko Yu. A., Efremova E. A. Influence of environmental factors on the infection of sheep with intestinal helminths in the Altai Mountains. Vestnik Novosibirskogo gosudarstvennogo agrarnogo universiteta = Bulletin of the Novosibirsk State Agrarian University. Novosibirsk, 2016; 3 (40): 129–137. (In Russ.)

13. Migacheva L. D., Kotelnikov G. A. Methodical recommendations on the use of a device for counting helminth eggs. Byulleten' Vsesoyuznogo instituta gel'mintologii = Bulletin of the All-Union Institute of Helminthology. Moscow, 1987; 48: 81– 83. (In Russ.)

14. Modina T. D., Sukhova M. G. Climate and agroclimatic resources of Altai. Novosibirsk: SD RAS, 2007; 180. (In Russ.)

15. Modina T. D. Climates of the Altai Republic. Novosibirsk: Publishing House of the Novosibirsk Pedagogical University, 1997; 177. (In Russ.)

16. Puzanova Е. V. Forecast of epizootic situation in main helminthosis of farm livestock in the Russian Federation for 2019. Rossiyskiy parazitologicheskiy zhurnal = Russian Journal of Parasitology. 2019; 13 (2): 28–35. (In Russ.)

17. Rokitsky P. F. Fundamentals of variation statistics for biologists. Minsk: Publishing house of the Belarusian State University, 1961; 221. (In Russ.)

18. Samigullin R. N., Fazlaeva S. E. About environmental factors in the relationship between parasites and the host with sheep strongyloidosis. Veterinariya = Veterinary Medicine. M., 1994; 12: 25–29. (In Russ.)

19. Snedecor D. U. Statistical methods as applied to research in agriculture and biology. M.: Selkhozgiz, 1961; 503. (In Russ.)

20. Tlepov A. A., Suleimenov M. Zh., Aubakirov H. A. et al. Environmental factors affecting the invasion of sheep with helminths. Mater. dokl. nauch. konf. Vseros. o-va gel’mintol. RAN «Teoriya i praktika bor’by s parazitarnymi boleznyami» = Materials of the research and practice conference of All-Russian Helminthologist Society of Russian Academy of Sciences “Theory and practice of protection from parasitic diseases". M., 2014; 15: 317–319. (In Russ.)

21. Shekhovtsov V. S., Lutsenko L. I. Influence of climatic factors on the degree of damage to animals by strongy of the digestive tract. Materialy dokladov X konferentsii Ukrainskogo obshchestva parazitologov = Materials of the report of the X conference of the Ukrainian Society of Parasitology. Kiev: Naukova Dumka, 1986; 360.

22. Kao R. R., Leathwick D. M., Roberts M. G., Sutherland I. A. Nematode parasites of sheep: a survey of epidemiological parameters and their application in a simple model. Parasitology. 2000; 121 (1): 85–103.

23. Stear M. J., Bairden K., Bishop S. C., Gettinby G., McKellar Q. A., Park M., Strain S., Wallace D. S. The processes influencing the distribution of parasitic nematodes among naturally infected lambs. Parasitology. 1998; 17 (2): 165–171.