Boykovski, St., Stefanova, G., Tzonev, T. & Anev, G. (2012). Productivity of Merino sheep, bred in Bulgaria. Shumen, Uni Express Ltd., 163 (Bg). Boykovski, St., Slavov, R., Slavova, P., Laleva, St., Iliev, M. & Tsonev, T. (2015). Productivity characteristics of Fine Fleece and Merino sheep. Sheep breeding news, 1/2, 22-28. ISSN 1313-3446 (Bg). Boykovski, St., Georgiev, D. & Tsonev, T., (2018). Influence of the Australian Merino and Boorola Merino breeds on the productivity and fertility of Fine Fleece sheep. Shumen, Uni Express Ltd., 161 (Bg). Dimitrov, D. (2006). Weight development and biological fecundity of sheep from the Northeast Bulgarian fine fleece breed Shumen type. Bulgarian Journal of Animal Husbandry, 1, 13-17 (Bg). Iliev, M. (1999). Study on the effect of genetic and non-genetic factors on productivity and selection system in sheep of the Karnobat Fine Fleece breed with a view to its preservation and improvement. Dissertation. Sofia, p.178 (Bg). Iliev, M. (2002). Age variability and heritability of selection traits of Fine Fleece sheep. Bulgarian Journal of Animal Husbandry, 6, 27-29 (Bg). Iliev, M. (2009). Age variability and inheritance of the productive traits of Karnobat Fine Fleece Breed. Bulgarian Journal of Animal Husbandry, 2, 22-27 (Bg). Slavov, R. (2007). Possibilities for improvement in sheep from the North East Bulgarian Merino breed-Dobrudzha type. Dissertation, Stara Zagora, p. 323 (Bg). Slavova, P. (2000). Study on the variability of the selection traits in sheep from the Thracian Fine Fleece breed and possibilities of improvement by crossing with Australian Merino rams. Dissertation, Sofia, p. 189 (Bg). Slavova, P. (2019). The Thracian Fine Fleece breed in Agricultural institute– Stara Zagora. Stara Zagora, „Contrast“, 144 (Bg). Slavova P., Dimitrov, I. & Laleva, S. (2015). Study of the dynamics of changes in live weight and fertility in sheep of the Thracian fine-fleece breed. Science & Technologies, V(5), Animal studies & Veterinary medicine, 21-27. Slavova P., Dimova, N., Mihaylova, M., Popova, Y., Laleva, S., Pacinovski, N. & Slavova, S. (2018). Intensity of growth, productivity and body condition score of young breeding animals of the Thracian Merino breed. Macedonian Journal of Animal Science, 8(1), 19–23. Stancheva, N., Slavova, P., Laleva, S., Krustanov, J., Iliev, M., Staykova, G., Kalaydzhiev, G. & Tzonev, T. (2015). Present status, development and productivity of Bulgarian Fine Fleece of sheep breeds in some herds of Agricultural Academy. Animal Science, LII(5), 62-71. Staykova, G., Iliev, M., Tsonev, T. & Anev, G. (2022). Effect of different sources of specific variance on the wool productivity of sheep from the North East Bulgarian Merino breed. Scientific Papers: Series D, Animal Science. The International Session of Scientific Communications of the Faculty of Animal Science, 65(1), 100-105. Tzonev, T. (2014). Productive characteristics of Merino sheep breed in Bulgaria. Dissertation. Sofia, p. 124. (Bg).
|
|