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Bulgarian Journal of Agricultural Science (BJAS)® is a peer-reviewed, open access, online and print journal, issued bimonthly. It has been published in English since 1995. It publishes original research papers, review articles and brief communications from all areas of agricultural science including agricultural economics, agroecology, agrochemisty and soil science, crop science, plant protection, animal science, veterinary medicine, fisheries and aquaculture, agricultural engineering, food technologies and other related areas.
ISSN 1310-0351 - print
ISSN 2534-983X - online
Publisher: Agricultural Academy of Bulgaria
Editor-in-Chief: Prof. Dr. Martin Banov
Executive editor: Snezhana Besarabova
E-mail: bjas_sb@abv.bg
Web: www.agrojournal.org
Address:
Bulgarian Journal of Agricultural Science
125, Tzarigradsko shosse Blvd., Block 1
1113 Sofia, Bulgaria
Print preparation: Ivo Nikov
Printing:BPS Ltd
Volume 26 Number 5 October 2020
AGRICULTURAL MANAGEMENT
Regression model of the formation of pasture with programmable productivity of the arid lands of the South-East European of Russia
Mikhail Y. Puchkov; Alexander V. Koshkarov; Maksim A. Lysakov; Konstantin V. Isaev; Elena G. Loktionova; Sergey D. Fomin; Elena S. Vorontsova and Vasily M. Strukov
Performance and forecast of Indonesian pepper exports to Italy
Agus Dwi Nugroho and Imade Yoga Prasada
AGRICULTURAL ECONOMICS
The state of agriculture in Bulgaria – PESTLE analysis
Mihaela Mihailova
SUSTAINABLE AGRICULTURE
Optimization of stocking density and mixture ratio of tilapia and carp in rice-fish culture for higher bio-economic efficiency
Aum Mohai Minur Rahman, Mohammad Parvez Anwar, Ahmed Khairul Hasan, Ainun Nur Jyoti, Mohammad Shahjahan, Mohammad Kamal Uddin and Sabina Yeasmin
Efficiency of using stimulating preparations in pre-treatment of spring barley seeds
Sergey V. Mitrofanov and Nikolay N. Novikov
ECOLOGICAL FARMING
Oral toxicity of chitin synthesis inhibitors (CSIs) and plant extracts to rubber termite, Coptotermes curvignathus Holmgren (Rhinotermitidae: Isoptera)
Aran Ngampongsai, Surakrai Permkam, Wisut Sittichaya, Suraphong Saiboon and Kanok Maharat
PLANT SCIENCE
Analysis of mancozeb and carbofuran pesticides residues in the production area of shallot (Allium cepa L. Var. ascalonicum)
Euis Nining, Rizal Sjarief, Zainal Alim Mas’ud, Sobir Sobir and Machfud Machfud
PLANT GENETICS AND GENOMICS
Influence of the water deficit on growth indexes and pests infestation of pepper mutant lines
Boyan Arnaoudov, Dima Markova and Yanina Arnaoudova
Grouping and evaluation of cornel-tree varieties according to some pomological indicators
Argir Zhivondov, Neli Keranova and Svetla Pandova
Genotype by environment interaction for grain yield in winter oat
Boryana Dyulgerova and Todorka Savova
Combining ability for the grain wet gluten content in durum wheat
Rangel Dragov
PLANT PATHOLOGY AND PROTECTION
Application of monosodium methyl arsenate with diuron herbicide to control the characteristics of glyphosate-resistant Eleusine indica at oil palm plantations
Koko Tampubolon, Edison Purba, Mohammad Basyuni and Diana Sofia Hanafiah
AGROCHEMISTRY AND SOIL SCIENCE
Soil profile distribution of water repellency and relationships with properties and characteristics of Technosols from open-cast mining
Irena Atanassova, Plamen Ivanov, Toma Shishkov, Emil Dimitrov and Martin Banov
ANIMAL SCIENCE
Effect of herbal supplements (nettle and rosehip) on the sperm quality in Danube White breed boars
Gergana Yordanova, Danail Kanev, Yordan Marchev, Radka Nedeva, Tanya Nikolova and Nadezhda Palova
Effect of different levels of dietary inclusion of Saccharomyces cerevisiae on growth performance and hematological parameters in broiler birds
Charles O. Osita, Augustine O. Ani, Chika E. Oyeagu, Eunice A. Akuru, Leonard C. Ugwuowo, Valentine C. Udeh and Uzochukwu J. Oliobi
Study on the conversion of energy and protein in fattening of Guinea-fowls up to 16 weeks of age by introducing “Clarc of distribution/ transformation”
Dimo Penkov and Matina Nikolova
Economic aspects of extruded soybeans’ usage in livestock and poultry
Olena Berbenets, Andriy Pugach and Olesya Lebedenko
Growing mulberry silkworm with аrtificial diet with added extract Tribulus terrestris L.
Tsvetelina Nikolova
ANIMAL GENETICS AND GENOMICS
Assessment of genetic diversity in sesame germplasm as an initial material for Bulgarian breeding programs
Stanislav Stamatov and Nikolaya Velcheva
VETERINARY SCIENCE
The quality of goat milk and hygiene management practlices on farms in Vojvodina
Snezana Paskas, Jelena Miocinovic, Mila Savic, Branislav Vejnovic and Zsolt Becskei
Enzootic pneumonia of pigs – diagnostic notes (review)
Roman Pepovich
FOOD SCIENCE AND TECHNOLOGIES
Influence of enzyme maceration and alcoholic fermentation temperature on the terpenes concentration in Muscat wine distillates
Nadezhda Blagoeva, Ivayla Bazhlekova, Hristo Spasov and George Kostov
Monitoring the content of biogenic amines in red wines subjected to malolactic fermentation
Ionel Popescu-Mitroi, Dana Gina Radu, Claudia Mureşan, Andreea Lupitu, Dana Copolovici and Lucian Copolovici
Assessment of extracts from dry fruits of Vaccinium myrtillus L. and Ribes nigrum by regression analysis
Antoaneta Georgieva, Radostina Stefanova and Krasimir Krastev
AGRICULTURAL ENGINEERING
Identification of parameters of pneumatic and mechanical seeding device under the influence of vacuum
Kateryna Vasylkovska, Oleksii Vasylkovskyi, Serhii Leshchenko, Mykola Sviren and Mykola Moroz