Zobrazeno 1 - 10
of 28
pro vyhledávání: '"Stefka Stoyanova"'
Autor:
Katya Velichkova, Ivaylo Sirakov, Stefka Stoyanova, Apostol Simitchiev, David Yovchev, Kamelia Stamatova-Yovcheva
Publikováno v:
Fishes, Vol 9, Iss 7, p 249 (2024)
Aquafarms should reduce the use of fishmeal and fish oil in nutritional feed. One such accessible and relatively inexpensive food component that could successfully meet the challenge posed by aquaculture is algae. The objective of the present study w
Externí odkaz:
https://doaj.org/article/32e9340b6dc84ec98a9a85fa37cd223d
Publikováno v:
Macedonian Veterinary Review, Vol 42, Iss 2, Pp 131-139 (2019)
The aim of the current study was to test the effect of a diet supplemented with dandelion’s (Taraxacum officinale) extract on the productive traits and blood parameters in common carp (Cyprinus carpio L.) cultivated in an recirculation aquaculture
Externí odkaz:
https://doaj.org/article/738cdcf9500b47eeb7478ad1198d88c3
Publikováno v:
Journal of Central European Agriculture, Vol 20, Iss 3, Pp 967-973 (2019)
Aquaponics is combined growing fish and plants in a recalculating system. Therefore it is very important to achieve optimal conditions for their cultivation. The purpose of this study was to trace the influence of the water used by the cultivated fis
Externí odkaz:
https://doaj.org/article/8d9f66ce0ed0456183014c660d18972d
Autor:
Katya Velichkova, Ivaylo Sirakov, Stefka Stoyanova, Georgi Zhelyazkov, Yordan Staykov, Todor Slavov
Publikováno v:
Journal of Central European Agriculture, Vol 20, Iss 2, Pp 585-591 (2019)
The aim of this study was to determine the effect of the sweet flag (A. calamus L.) extract addition of growth performance, haematological (white blood cells, red blood cells, hemoglobin, hematocrit) and biochemical (glucose, urea, creatinine, total
Externí odkaz:
https://doaj.org/article/39eae65faefc4b4d9d7a31ea132912eb
Autor:
Nikolay Nachev, Stefka Stoyanova, Antoan Rangelov, Emanuil Yordanov, Emil I Hristov, Iva Parvova, Valentina Petkova
Publikováno v:
Journal of Generic Medicines: The Business Journal for the Generic Medicines Sector. 18:88-98
Aim: To analyze drug utilization and rational drug use in treatment of essential arterial hypertension in Bulgaria by using quantitative and qualitative parameters at national level. To assess generic penetration as a part of rational drug use. Mater
Autor:
Stefka Stoyanova, Emanuil Yordanov, Valentina Petkova, Hristo Tzachev, E. Hristov, Iva Parvova
Publikováno v:
Journal of Generic Medicines: The Business Journal for the Generic Medicines Sector. 18:42-50
The entry of the biological medicinal products (BMPs) in the clinical practice more than 10 years ago raised complex regulatory issues as well as significant pharmacoeconomic concerns, because the costs of treatment is higher than the costs of the co
Publikováno v:
Macedonian Veterinary Review, Vol 42, Iss 2, Pp 131-139 (2019)
The aim of the current study was to test the effect of a diet supplemented with dandelion’s (Taraxacum officinale) extract on the productive traits and blood parameters in common carp (Cyprinus carpio L.) cultivated in an recirculation aquaculture
Publikováno v:
Journal of Central European Agriculture, Vol 20, Iss 3, Pp 967-973 (2019)
Aquaponics is combined growing fish and plants in a recalculating system. Therefore it is very important to achieve optimal conditions for their cultivation. The purpose of this study was to trace the influence of the water used by the cultivated fis
Publikováno v:
Trakia Journal of Sciences, Vol 16, Iss 4, Pp 307-312 (2018)
The use of herbs as feed additives for fish showed a stimulating effect on growth, feed assimilation and increase its digestibility. The aim of research was to assess the outcome of feeding dietary cinnamon extract on the survival rate, growth perfor
Publikováno v:
Trakia Journal of Sciences, Vol 16, Iss 4, Pp 300-306 (2018)
Aquaculture development is influenced by various environmental factors and nutrition with herbal additives can affect the growth in aquaculture and to improve indicators such as digestibility, nutrition effectiveness and food taste. The purpose of th