| Preferences of freestall housed dairy cows to different bedding materials J Mıtev, İ Varlyakov, T Mıteva, N Vasılev, J Gergovska, K Uzunova, ... İstanbul Üniversitesi Veteriner Fakültesi Dergisi 38 (2), 135-140, 2012 | 26 | 2012 |
| Economical qualities of crosses between doubled haploid sugar beet lines. G Kikindonov, T Kikindonov, S Enchev | 22* | 2016 |
| Comparative studies on Fermentation Processes in the Rumen and Blood content of calves and Buffalo calves. I.Effect of diet, containing alfalfa haylage K Sivkova, H Trufchev, I Varlyakov, M Tzankova V World Buffalo Congress Caserta Italy 10 (13-16), 307-311, 1997 | 19 | 1997 |
| Biological fertility and milk yield in Bulgarian Dairy Synthetic Population sheep according to breeding line. N Stancheva, I Dimitrova, S Georgieva Agricultural Science & Technology (1313-8820) 6 (1), 2014 | 16 | 2014 |
| Effect of season, lactation period and number of lactation on mastitis incidence and milk yields in dairy cows. T Penev, Z Gergovska, I Marinov, V Kirov, K Stankov, Y Mitev, C Miteva | 12 | 2014 |
| Effect of lameness on the behavior of dairy cows under intensive production systems. I Varlyakov, T Penev, J Mitev, T Miteva, K Uzunova, ZH Gergovska | 12 | 2012 |
| Behaviour of cows in milking parlour. I Varlyakov, V Radev, T Slavov, N Grigorova | 12 | 2011 |
| Blood parameters in yearling sheep fed Paulownia (Paulownia spp.) leaves. I Varlyakov, V Radev, T Slavov, G Ganchev Agricultural Science & Technology (1313-8820) 5 (4), 2013 | 11 | 2013 |
| Effect of Hostazym C100 on growth performance and some hematological and ethological indexes of yearling rams I Varlyakov, N Grigorova, T Slavov Bulg. J. Agri. Sci 16, 659-664, 2010 | 10 | 2010 |
| Socialization of puppies – a marker of their future behaviour K Uzunova, V Radev, I Varlyakov Trakia Journal of Sciences 8 (1), 70-73, 2010 | 10 | 2010 |
| Changes in Blood Biochemical Indices in Yearling Rams after Dietary Supplementation of Optigen. I Varlyakov, V Radev, T Slavov, K Uzunova, R Mihaylov, M Tosheska Albanian Journal of Agricultural Sciences 14 (1), 2015 | 7 | 2015 |
| Haematological parameters in Lacaune ewes associated to the parity. T Slavov, D Panayotov, I Nedeva, V Radev, I Varlyakov | 6 | 2018 |
| Behavioral reactions of ewes during machine milking. I Ivanov, M Djorbineva, I Varliyakov | 6 | 1996 |
| Studies on the range of behaviour reactions of dairy cows. I Varlyakov, A Tossev, K Sivkova, R Dragneva | 5 | 1995 |
| Blood biochemical profile as an objective measure of welfare in Lacaune sheep. I Nedeva, T Slavov, V Radev, D Panayotov, I Varlyakov Bulgarian Journal of Agricultural Science 28 (2), 2022 | 4 | 2022 |
| SWOT analysis for supporting development of the grazing livestock meat production sector in Bulgaria through the GREENANIMO project activities. M Panayotova, J Krastanov, I Varlyakov, T Stoyanchev, I Marinov Bulgarian Journal of Agricultural Science 27 (6), 2021 | 4 | 2021 |
| Haematological and blood biochemical parameters in Lacaune dairy sheep. I Nedeva, T Slavov, I Varlyakov, V Radev, D Panayotov | 4 | 2019 |
| Effects of exogenous enzyme preparations on protozoan population and cellulolytic activity in the rumen of yearling rams N Grigorova, T Slavov, P Todorova, V Radev, I Varlyakov Bulg. J. Agric. Sci 18, 296-303, 2012 | 4 | 2012 |
| Effect of coconut oil on rumen and duodenal ammonia concentrations and some blood biochemistry parameters in yearling rams. V Radev, T Slavov, E Enev, I Varlyakov | 4 | 2011 |
| Ethological evaluation of a building for free housing of dairy cows. II. Behavioural activities in the winter. I Varlyakov, T Slavov, N Grigorova | 4 | 2010 |
