Отдел "Генетика, развъждане и репродукция"

Публикации с автор и съавтор доц. д-р Никола Методиев

  1. Tsonev, T., Metodiev, N., & Anev, G. (2021). Synchronization of Estrus by Double Treatment with a Synthetic Analogue of PGF2α at Different Intervals in Sheep of Northeastern Bulgarian Fine−Wool Breed − Shumen Type. Journal of Mountain Agriculture on the Balkan, 24(3), 60–69.
  2. Andreeva, M., Alexandrova, A., Tsvetanova, E., Metodiev, N., &. Stefanov, R. (2021). Effect of the breed on the activity of the antioxidant enzymes - SOD and CAT in ram sperm, before and after cryopreservation. Tradition and modernity in veterinary medicine, 6 (2): 28–33
  3. Harizanova – Metodieva Ts., & Metodiev, N. (2021). Environmental concern among sheep farmers in Bulgaria. Scientific Papers Series Management, Economic Engineering in Agriculture and Rural Development, 21(1), 377-381.
  4. Laleva, S., Slavova, P., Ivanova, T., Kalaydzhiev, G., Popova, Y., Slavova, S., Ivanov, N., & Metodiev, N. (2021). Study of the genetic parameters of selection traits in Ile de France sheep. Bulgarian Journal of Animal Husbandry, 58(4), 12-18.
  5. Moneva, P., Tsaneva, M., Metodiev, N., Yanchev, I. & Gudev, D. (2021). Hematologic responses to shearing stress in pregnant Ile de France ewes with low and high basal hematocrit levels. Bulgarian Journal of Agricultural Science, 27(4), 776–784
  6. Moneva, P., Tsaneva, M., Yanchev, I., Metodiev, N., & Gudev, D. (2021). Endocrine responses to shearing stress in pregnant Ile de France ewes with low and high basal hematocrit levels. Bulgarian Journal of Agricultural Science, 27(5), 990–995
  7. Moneva, P., Tsaneva, M., Yanchev, I., Metodiev, N., & Gudev, D. (2021). Dynamics of leukocytes and cytokines after shearing in pregnant ewes with low and high hematocrit levels. Bulgarian Journal of Agricultural Science, 27(6), 1203–1211
  8. Harizanova − Metodieva, Ts., & Metodiev, N. (2021). Main Problems for Sheep Farmers in Bulgaria. Journal of Mountain Agriculture on the Balkans, 24(6), 23–30
  9. Harizanova − Metodieva, Ts., & Metodiev, N. (2022). Study of the Technological Equipment of Sheep Farms in Bulgaria. Journal of Mountain Agriculture on the Balkans, 25(3), 37 – 47
  10. Moneva, P., Yanchev, I., Metodiev, N., Tsaneva, M., & Gudev, D. (2022). Acclimatization to moderate altitude in ewes having low or high hematocrit levels. Bulgarian Journal of Animal Husbandry, 59(5), 54-62.
  11. Laleva, S., P. Slavova, P., Ivanova, T., Kalaydzhiev, G., Popova, Y., Slavova, S., Ivanov, N., & Metodiev, N. (2022). Study of the influence of some genetic and non-genetic factors on the productive performance of Ile de France ewes. Journal of Hygienic Engineering and Design, 25(3), 37-47.
  12. Yanchev, I., Moneva, P., & Metodiev, N. (2022). Effect of Moderate Hypoxia on the Dynamics of Some Hematological Parameters of Ile-de-France Sheep Depending on Basal Hematocrit Levels. Journal of Mountain Agriculture on the Balkans 25(5), 58–75
  13. Yanchev, I., Metodiev, N., Kanchev, K., Moneva, P., & Ignatova, M. (2023). Hematological Status of Karakachan Sheep Herds Reared at Different Altitudes in Summer, Depending on Their Body Condition Score and the Presence of Gastrointestinal Parasites. Journal of Mountain Agriculture on the Balkans 26(1), 32–54
  14. Moneva, P., Yanchev, I. & Metodiev, N. (2023). Dynamics of leukocytes and cytokines after moderate altitude exposure in pregnant ewes with low and high hematocrit levels. Bulgarian Journal of Agricultural Science 29(4), 723–732
  15. Yanchev, I., Metodiev, N., Moneva, P. & Ignatova, M. (2023). Effect of altitude on some hematological parameters in two Bulgarian local sheep breeds depending also on their body condition score. Bulgarian Journal of Agricultural Science 29(4), 740–746
  16. Andreeva, M., Metodiev, N., Stefanov, R., Tsvetanova, E., & Alexandrova, A. (2023). Evaluation of the cryotolerance of spermatozoa in Sofia (Elin-pelin) sheep breed. Tradition and modernity in veterinary medicine 8 (1), 11-16
  17. Metodiev, N., Tsonev, T., Anev, G., & Yordanov, Y. (2023). A comparative study on the fertility after administration of two types of progestogens for estrus synchronization in sheep. Bulgarian Journal of Animal Husbandry, 60(3), 3-9
  18. Yanchev, I., Metodiev, N., Moneva , P., & Ignatova, M. (2023). Differences in some biochemical parameters in two herds of Karakachan sheep depending on environment. Bulgarian Journal of Animal Husbandry, 60(6), 10-18.
  19. Metodiev, N. (2023). Synchronization of estrus in ewes from the Synthetic bulgarian dairy population by progestagen and different follow-up treatments. Bulgarian Journal of Animal Husbandry, 60(6), 19-24.
  20. Harizanova − Metodieva, Ts., & Metodiev, N. (2023). Analysis of Human Resources in Sheep Farms in Bulgaria. Journal of Mountain Agriculture on the Balkans 26(5), 22–36
  21. Yanchev, I., Metodiev, N., Moneva, P., & Ignatova, M. (2024). Variation of Some Biochemical Indicators in Four Herds of Bulgarian Dairy Synthetic Population Sheep Reared at Different Altitudes. Journal of Mountain Agriculture on the Balkans 27(2), 1–20
  22. Metodiev, N. (2024). Synchronization of Estrus in Ewes from a Synthetic Population Bulgarian milk by a Synthetic Analogue of PGF 2$\alpha$ with or without Administration of a GnRH Agonist. Journal of Mountain Agriculture on the Balkans 27(3), 55–63
  23. Yanchev, I., Metodiev, N., Kanchev, K., Moneva, P. & Ignatova, M. (2024). Dynamics of some biochemical parameters in two local sheep breeds depending on the season, altitude and the presence of parasites. Bulgarian Journal of Animal Husbandry, 61(2), 36-48
  24. Metodiev, N., & Ivanova, T. (2024). Effect of the year on the biological fertility in ewes from a synthetic population of Bulgarian milk with with two consecutive pregnancies in two consecutive calendar years. Bulgarian Journal of Animal Husbandry, 61(6), 8-13.
  25. Harizanova − Metodieva, Ts., & Metodiev, N. (2025). Agricultural activities as an additional work for sheep farmers in Bulgaria. Scientific Papers Series Management, Economic Engineering in Agriculture and Rural Development 25(1), 477-480
  26. Yanchev, I., Metodiev, N., Moneva, P. & Ignatova, M. (2025). Seasonal changes of some biochemical indicators in four sheep herds from Bulgarian Dairy Synthetic Population. Bulgarian Journal of Animal Husbandry, 62(1), 27-37
  27. Yanchev, I., Metodiev, N., Moneva, P., & Ignatova, M. (2025). Influence of the Season on the Variation of some Hematological Parameters in Four Herds of Sheep from the Bulgarian Dairy Synthetic Population. Journal of Mountain Agriculture on the Balkans 28 (1), 38–63
  28. Metodiev, N., & Harizanova-Metodieva, Ts. (2025). A study on the Reasons for Culling and Some Parameters Related to the Health Status of Dairy Sheep Raised in Bulgaria. Journal of Mountain Agriculture on the Balkans 28 (6), 42–52