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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 0310-0351 - print
ISSN 2534-983X - online

Publisher: Agricultural Academy of Bulgaria
Editor-in-Chief: Prof. Maya Ignatova
Editor: Roumyana Vassileva
E-mail: bjas_sb@abv.bg
Web: http://www.agrojournal.org; http://journal.agrojournal.org

Address:
Bulgarian Journal of Agricultural Science
125, Tzarigradsko shosse Blvd., Block 1
1113 Sofia, Bulgaria

Print preparation: Photonika - Ivo Nikov
Printing: Avangard Ltd.

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Volume 25 Number 1 February 2019

AGRICULTURAL ECONOMICS AND MANAGEMENT

Sustainability analysis of dairy cattle farms and their susceptibility to climatic hazards in the semi-arid area of Setif (Algeria)

Abdenour Bir, Mohamed Benidir, Sarah Ikhlef


The impact of CAP subsidies on the agricultural enterprise’s production structure

Angel Sarov, Krasimir Kostenarov


Current status and conditions for agritourism development in the Lombardy region

Michal Roman, Bartosz Golnik


Overseas cultivation: the complimentary approach for developing food security

A. A. Kalbasi Esfahani, Seyed Mehdi Mirdamadi, Seyed Jamal Farajollah Hosseini, Farhad Lashgarara


AGROCHEMISTRY AND SOIL SCIENCE

Isolation and screening of calcareous and non calcareous soil rhizobacteria producing osmoprotectant and indol acetic acid in Gunung Kidul, Yogyakarta, Indonesia

Yekti Maryani, Sudadi, W. S. Dewi, Ahmad Yunus


Carbon dioxide emission and carbon sequestration potential in Alfisol

Jauhari Syamsiyah, Bambang Hendro Sunarminto, Eko Hanudin, Jaka Widada, Mujiyo


PLANT SCIENCE

Study on seed yield components depending on the duration of vegetation period in soybean

Galina Naydenova, Natalia Georgieva


Lead toxicity affects growth and biochemical content in various genotypes of barley (Hordeum vulgare L.)

Abdul Latief A. Al-Ghzawi, Wesam Al Khateeb, Abdoul Rjoub, Abdel Rahman M. Al-Tawaha, Iyad Musallam, Khaldoun O. Al Sane


Effect of drought stress and silica spraying on some physiological and functional traits of canola cultivars

Ebrahim Fani, Payman Hassibi, Mousa Meskarbashee, Khosro Mehdi Khanlou, Seyed Abdolreza Seyedahmadi


Oil yield determinant of sunflower in climatically different regions of Iran

Mehdi Ghaffari, Araz Mohammad Nouri Rad Davaji, Farshad Nasser Ghadimi


Effect of salt stress on in vitro grown Solanum nigrum L.

Wesam Al Khateeb, Riyadh A. Basahi, Hajer Al-Qwasemeh


Economic viability of including crude humic substances, chicken litter biochar, and clinoptilolite zeolite in rice cultivation on acid soils

Perumal Palanivell, Osumanu Haruna Ahmed, Omar Latifah, Nik Muhamad Abdul Majid


PLANT GENETICS

The genotype selection of M3 generation of Kipas Putih soybean with gamma-rays irradiation on agronomic characters, early maturity and high yielding mutants

Nilahayati, Rosmayati, Diana Sofia Hanafiah, Fauziyah Harahap


PLANT PROTECTION

Weed flora of potato crop in Kosovo

Arben Mehmeti, Rozafa Fetahaj, Luan Tiriqi, Muhamet Zogaj, Adem Demaj


Comparative testing of herbicides in newly planted vineyard

Neli Prodanova-Marinova, Emil Tsvetanov, Anatoli Iliev


ANIMAL SCIENCE

The influence of crossbreeding on the protein composition, nutritional and energy value of cow milk

Оleksandr O. Borshch, Оleksandr V. Borshch, Lesia T. Kosior, Iryna A. Lastovska, Liudmyla V. Pirova


Evaluation of aflatoxin M1 by ELISA in raw milk in Kosovo during 2016

Arieta Camaj, Tahir Arbneshi, Bajram Berisha, Arben Haziri, Afërdita Camaj


Influence of using seeds of flax and raps in cow rates on the quality of milk and dairy products

Elena Kislyakova, Galina Berezkina, Svetlana Vorobyeva, Sergey Kokonov, Igor Strelkov


Effect of feed supply on milk yield and lipid composition in Algerian dairy cows

Amel Kouidri, Amel Meribai, Abdelouaheb Nouani, Mouloud Mohand Bellal, Bachar Zebib, Othmane Merah


Factors influencing farmers decision on breeding objectives and selection criteria for sheep breeds in Abu Dhabi Emirate, UAE

Mohammad J. Tabbaa, Faisal S. Barakeh, Maher M. Baker


ANIMAL GENETICS

Effect of the GDF9 gene on the weight of lambs at birth

Lyubov Getmantseva, Nekruz Bakoev, Nadezhda Shirokova, Maria Kolosova, Siroj Bakoev, Anatoly Kolosov, Aleksander Usatov, Varvara Shevtsova, Yuri Kolosov


Microsatellite markers – a tool for molecular characterization of cattle genetic resources

Denis Viryanski


FISHERIES AND AQUACULTURE

Functional and morphological groups in the phytoplankton of large reservoirs used for aquaculture in Bulgaria

Kostadin Dochin


VETERINARY MEDICINE

The impact of motor activity level of newborn calves with dyspepsia on correction efficiency of hypercoagulation state in them with the help of gamavit

Vera D. Fomina, Grigory G. Arslanian, Galina S. Mal, Olga N. Makurina


AGROECOLOGY

Monitoring of some indicators of lead and cadmium spread along the trophic chain ‘feed – animals – food’ in a region with an increased ecological Clarc

Dimo Penkov, Hristo Hristev


FOOD SCIENCE AND TECHNOLOGIES

Kinetic and microbiological dependencies in the process of fermentation of goat milk, enriched with lactulose

Iliana Nacheva


Effect of the assistance of microwave and oxalic acid on the extraction yield of pectin from pomelo (Citrus maxima) peel

Le Pham Tan Quoc


Ultrasound-assisted and agitated enzymatic extraction of pectin from red beet (Beta vulgaris L. var. conditiva) roots

Shukhrat M. Velyamov, Seit S. Jingilbaev, Stepan G. Akterian


AGRICULTURAL ENGINEERING

Optimum use of the irrigational water in a wide-spaced irrigation technology

Milena Moteva, Georgi Kostadinov


Analysis of water balance to determine cropping patterns of food crop in sub-watershed Tenggarong, Kutai Kartanegara regency

Akas Pinaringan Sujalu, M. Hidayanto, Yossita Fiana, Akas Yekti Pulihasih