Abbosjon Akhmad ugli Ashrapov

@samduuf.uz

Scientific department
Samarkand state university named after Sharof rashidov Urgut branch

Abbosjon Akhmad ugli Ashrapov


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https://researchid.co/a.a-ashrapov

RESEARCH, TEACHING, or OTHER INTERESTS

Animal Science and Zoology, Aquatic Science, Insect Science, Agricultural and Biological Sciences
5

Scopus Publications

7

Scholar Citations

2

Scholar h-index

Scopus Publications

  • Fatty acid composition of Clarias gariepinus fish reared in artificial pond conditions, Uzbekistan
    Gulrux Urunova, Iroda Zokhidova, Nurali Muhammadiyev, Abdurashid Jabborov, Semyon Fundukchiyev, Abdunabi Mamashukurov, Abbos Ashrapov, Ra’no Urazova
    Bio Web of Conferences, 2025
    The article presents the gas chromatographic analysis of fatty acids of African catfish (Clarias gariepinus) raised in the aquaculture conditions of Uzbekistan. Fish also contains significant amounts of all essential amino acids, especially lysine, which cereals are relatively poor in. Therefore, fish protein can be used to supplement the amino acid composition and improve the overall protein quality of mixed diets. The study showed that the fish contains mono- and polyunsaturated fatty acids such as oleic (C18:1-9 cis), linoleic (C18:2), eicosapentaenoic (C20:5), docosapentaenoic (C22:5). The ratio of ω-6/ω-3 PUFAs is 3:1, which is optimal for preventive nutrition. The data shows a high potential for using African catfish in dietary and functional nutrition.
  • Trophic structure and soil depth stratification as ecological drivers of taxonomic and species diversity in the nematode community in Central Asian peach orchards
    Nurmatova, Dilnoza M., Narzullayev, Sardorbek B., Mavlyanov, Ochil, Khakimov, Najmitdin, Jabborov, Abdurashid R., et al.
    Acta Biologica Sibirica, 2025
    The formation of nematode communities and their drivers remain poorly understood in arid agroecosystems, particularly in Central Asia’s intensive orchards. We investigated nematode fauna in peach orchards of Uzbekistan’s Zarafshan Valley (2023–2024), where low-organic soils (0.9–1.3% OM) and monoculture practices create unique ecological constraints. From 180 samples (149 nematode-positive), we identified 61 species across 38 genera, including Butlerius butleri Goodey, 1929 (Rhabditida) as a new country record. The study revealed clear patterns in how nematodes distribute themselves across different habitats within peach orchards. Root systems showed a strong preference for endoparasitic nematodes like Meloidogyne and Pratylenchus, which were found to be 9.2 times more likely to occur in roots compared to soil. Meanwhile, the soil layers hosted the majority (85.7%) of bacterivorous nematodes, though their populations decreased significantly with depth – diversity indices dropped from 3.88 in the top 0–15 cm layer to 3.81 in the 15–30 cm layer. Interestingly, while the types of nematode species remained quite similar between soil layers (with a 92% similarity index), their actual numbers varied considerably, suggesting that environmental conditions primarily affect population sizes rather than species presence. Several key environmental factors emerged as important drivers of these distribution patterns. Organic matter content stood out as the strongest predictor, accounting for 51% of the variation in nematode diversity, followed closely by soil bulk density at 43%. Soil chemistry also played a significant role, with pH and nutrient levels (N, P, K) showing moderate to strong correlations (0.58–0.64) with nematode abundance. Some nematode groups displayed remarkable adaptability – omnivorous species like Eudorylaimus showed no particular depth preference, maintaining consistent populations throughout the soil profile. These findings provide important ecological insights about soil communities in agricultural systems. The feeding habits of nematodes explained about 18% of how communities were structured, revealing how agricultural practices create different nematode communities compared to natural ecosystems. One of the most striking observations was that changes in soil depth affected nematode numbers 2.3 times more strongly than they affected which species were present. This suggests that farming practices likely influence nematode communities more by changing population sizes than by eliminating particular species, with soil quality parameters like organic matter and compaction being particularly important factors shaping these communities.
  • Diversity and habitat distribution of tomato (Solanum lycopersicum) nematoda fauna (Zarafshan valley, Uzbekistan)
    Narzullayev, Sardorbek B., Mirzaev, Uktam N., Mavlyanov, Ochil, Khakimov, Najmitdin, Jabborov, Abdurashid R., et al.
    Acta Biologica Sibirica, 2024
    Nematodes are the most widespread multicellular organisms found in soil ecosystems. They engage in complex and diverse relationships with plants and other living organisms. Additionally, the composition of nematode communities varies across different climatic conditions. This study was conducted in the Zarafshan Valley of Uzbekistan, where the species and ecological diversity of nematodes have not been thoroughly explored. Our research identified 87 nematode species belonging to seven orders across various biotopes associated with tomato plants in three regions of the Zarafshan Valley. Notably, the majority of these species were found in the rhizosphere soil. For the first time in this region, we classified nematodes into ecological groups based on their trophic characteristics, revealing that the bacterivores group is the most dominant. We calculated ecological indicators for nematodes in different biotopes using the Simpson index (Dˊ), Shannon index (Hˊ), Menhinck index, Margalef index, and Berger-Parker index. The diversity of nematode fauna across these biotopes was analyzed in relation to soil organic matter content, humidity, and pH levels. Our findings further demonstrate that variations in the species and ecological composition of nematodes among biotopes are influenced by multiple factors, particularly their trophic characteristics.
  • Review of the genus Dioctria Meigen, 1803 (Diptera: Asilidae) in Uzbekistan with the description of two new species
    Mamanov, Sobitkhon S., Rakhimov, Mukhammadtuychi R., Khalimov, Fazlitdin Z., Xamzayev, Rafik A., Abdullayev, Erkin N., et al.
    Acta Biologica Sibirica, 2024
    The article analyzes representatives of the fauna of the genus Dioctria of Uzbekistan. Two new species, Dioctria abdullayevi Mamanov et Rakhimov sp. nov. (Type locality: Kurama range (Western Tian Shan)) and Dioctria hissarica Mamanov et Rakhimov sp. nov. (Type locality: Hissar range (Western Hissar-Alai)), are described and illustrated. The new species can be distinguished from other species by several characteristics, including the shape of genitalia. The number of Dioctria species in Uzbekistan has now increased to 6. The distinctive features of the species of the genus Dioctria are analyzed comparatively, and the key to determining the representatives of the genus common in Uzbekistan is given.
  • Peculiarities of cultured carps embryonic development under conditions of artificial reproduction in temperate climate uzbekistan
    Yuldoshev Kh.T
    Journal of Advanced Research in Dynamical and Control Systems, 2020

RECENT SCHOLAR PUBLICATIONS

  • Trophic structure and soil depth stratification as ecological drivers of taxonomic and species diversity in the nematode community in Central Asian peach orchards
    DM Nurmatova, SB Narzullayev, O Mavlyanov, N Khakimov, AR Jabborov, ...
    Acta Biologica Sibirica, 477-493 , 2025
    2025
  • Fatty acid composition of Clarias gariepinus fish reared in artificial pond conditions, Uzbekistan
    G Urunova, I Zokhidova, N Muhammadiyev, A Jabborov, S Fundukchiyev, ...
    BIO Web of Conferences 173, 04011 , 2025
    2025
  • Review of the genus Dioctria Meigen, 1803 (Diptera: Asilidae) in Uzbekistan with the description of two new species
    SS Mamanov, MR Rakhimov, FZ Khalimov, RA Khamzaev, ...
    Acta Biologica Sibirica 10, 1543–1557-1543–1557 , 2024
    2024
    Citations: 2
  • Diversity and habitat distribution of tomato (Solanum lycopersicum) nematoda fauna (Zarafshan valley, Uzbekistan)
    SB Narzullayev, UN Mirzaev, O Mavlyanov, N Khakimov, AR Jabborov, ...
    Acta Biologica Sibirica 10, 1147–1164-1147–1164 , 2024
    2024
    Citations: 2
  • EMBRYONIC DEVELOPMENT OF CHINESE CYPRINIDS PELAGOPHILES UNDER CONDITIONS OF ARTIFICIAL REPRODUCTION IN UZBEKISTAN
    AA Ashrapov
    EPRA International Journal of Research & Development (IJRD) 2 (7), 43-46 , 2023
    2023
  • Особенности эмбрионального развития венгерского карпа в условиях искусственного воспроизводства Ташкентской области
    ХБЭ Abbos Ashrapov, С. Ким, Б.Г. Камилов
    ХОРАЗМ МАЪМУН АКАДЕМИЯСИ АХБОРОТНОМАСИ 2, 9-12 , 2021
    2021
  • PECULIARITIES OF CULTURED CARPS EMBRYONIC DEVELOPMENT UNDER CONDITIONS OF ARTIFICIAL REPRODUCTION IN TEMPERATE CLIMATE UZBEKISTAN
    KBG YULDOSHEV K.T., ASHRAPOV A.A., YULDASHOV M.A.
    JOURNAL OF ADVANCED RESEARCH IN DYNAMICAL AND CONTROL SYSTEMS 12 (7 Special … , 2020
    2020
    Citations: 1
  • Peculiarities of Hypophthalmichthys molitrix (Valenciennes, 1844) Embryonic Development Under Conditions of Artificial Reproduction in Uzbekistan
    A Ashrapov, K Yuldoshev, B Kamilov
    Bulletin of Science and Practice 6 (5) , 2020
    2020
  • NATURAL SOURCES OF FISH NUTRITION IN CLOSED RESERVOIRS OF SAMARKAND REGION
    YS Toshpulatov
    Scientific Bulletin of Namangan State University 2 (3), 154-158 , 2020
    2020
  • VARYABILITY OF OVULATED EGGS OF COMMON CARP IN UZBEKISTAN ENVIRONMENTS
    KB Ergashev, BG Kamilov
    Scientific Bulletin of Namangan State University 2 (3), 210-214 , 2020
    2020
  • Особенности эмбрионального развития Hypophthalmichthys molitrix (Valenciennes, 1844) в условиях искусственного воспроизводства в Узбекистане
    АА Ашрапов, Х Юлдошев, БГ Камилов
    Бюллетень науки и практики 6 (5), 83-88 , 2020
    2020
    Citations: 1
  • Особенности эмбрионального развития белого амура (Hypophthalmichthys molitriх) в условиях искусственного воспроизводства в Узбекистане
    ААЎ Ашрапов, ХТ Юлдошев, БГ Камилов
    Life Sciences and Agriculture, 106-110 , 2020
    2020
    Citations: 1
  • Oqdaryo suv omborida uchraydigan baliq turlari haqida ma’lumot.
    Rahmonova, Rasaxanova
    FOOD SECURITY: NATIONAL AND GLOBAL CHALLENGES. International Conference … , 2019
    2019
  • Oq do`ngpeshona bali`g`ining rivojlnishiga iod ayrim ma`lumotlar
    A Ashrapov
    FOOD SECURITY: NATIONAL AND GLOBAL CHALLENGES. International Conference … , 2019
    2019
  • To`rdor shilliqqurt – deroseras reticulatum (Muller, 1774) ning ko`payishiga haroratning ta`siri
    R Nilufar, Z Iroda
    ХХХI Miждународна науковоғпрактична iнтернет-конференцiя. Проблеми та … , 2016
    2016
  • Tamakining izmir navining dalaga o`tkazish mudatlarini tamaki tripsi bilan zararlanish darajasiga ta`siri
    ХХХI Miждународна науковоғпрактична iнтернет-конференцiя. Проблеми та … , 2016
    2016
  • Карамнинг турли навларида карам ширасининг айрим екологик хусусиятлари
    ХIV Miждународна науковоғпрактична iнтернет-конференцiя. Проблеми та … , 2015
    2015

MOST CITED SCHOLAR PUBLICATIONS

  • Review of the genus Dioctria Meigen, 1803 (Diptera: Asilidae) in Uzbekistan with the description of two new species
    SS Mamanov, MR Rakhimov, FZ Khalimov, RA Khamzaev, ...
    Acta Biologica Sibirica 10, 1543–1557-1543–1557 , 2024
    2024
    Citations: 2
  • Diversity and habitat distribution of tomato (Solanum lycopersicum) nematoda fauna (Zarafshan valley, Uzbekistan)
    SB Narzullayev, UN Mirzaev, O Mavlyanov, N Khakimov, AR Jabborov, ...
    Acta Biologica Sibirica 10, 1147–1164-1147–1164 , 2024
    2024
    Citations: 2
  • PECULIARITIES OF CULTURED CARPS EMBRYONIC DEVELOPMENT UNDER CONDITIONS OF ARTIFICIAL REPRODUCTION IN TEMPERATE CLIMATE UZBEKISTAN
    KBG YULDOSHEV K.T., ASHRAPOV A.A., YULDASHOV M.A.
    JOURNAL OF ADVANCED RESEARCH IN DYNAMICAL AND CONTROL SYSTEMS 12 (7 Special … , 2020
    2020
    Citations: 1
  • Особенности эмбрионального развития Hypophthalmichthys molitrix (Valenciennes, 1844) в условиях искусственного воспроизводства в Узбекистане
    АА Ашрапов, Х Юлдошев, БГ Камилов
    Бюллетень науки и практики 6 (5), 83-88 , 2020
    2020
    Citations: 1
  • Особенности эмбрионального развития белого амура (Hypophthalmichthys molitriх) в условиях искусственного воспроизводства в Узбекистане
    ААЎ Ашрапов, ХТ Юлдошев, БГ Камилов
    Life Sciences and Agriculture, 106-110 , 2020
    2020
    Citations: 1
  • Trophic structure and soil depth stratification as ecological drivers of taxonomic and species diversity in the nematode community in Central Asian peach orchards
    DM Nurmatova, SB Narzullayev, O Mavlyanov, N Khakimov, AR Jabborov, ...
    Acta Biologica Sibirica, 477-493 , 2025
    2025
  • Fatty acid composition of Clarias gariepinus fish reared in artificial pond conditions, Uzbekistan
    G Urunova, I Zokhidova, N Muhammadiyev, A Jabborov, S Fundukchiyev, ...
    BIO Web of Conferences 173, 04011 , 2025
    2025
  • EMBRYONIC DEVELOPMENT OF CHINESE CYPRINIDS PELAGOPHILES UNDER CONDITIONS OF ARTIFICIAL REPRODUCTION IN UZBEKISTAN
    AA Ashrapov
    EPRA International Journal of Research & Development (IJRD) 2 (7), 43-46 , 2023
    2023
  • Особенности эмбрионального развития венгерского карпа в условиях искусственного воспроизводства Ташкентской области
    ХБЭ Abbos Ashrapov, С. Ким, Б.Г. Камилов
    ХОРАЗМ МАЪМУН АКАДЕМИЯСИ АХБОРОТНОМАСИ 2, 9-12 , 2021
    2021
  • Peculiarities of Hypophthalmichthys molitrix (Valenciennes, 1844) Embryonic Development Under Conditions of Artificial Reproduction in Uzbekistan
    A Ashrapov, K Yuldoshev, B Kamilov
    Bulletin of Science and Practice 6 (5) , 2020
    2020
  • NATURAL SOURCES OF FISH NUTRITION IN CLOSED RESERVOIRS OF SAMARKAND REGION
    YS Toshpulatov
    Scientific Bulletin of Namangan State University 2 (3), 154-158 , 2020
    2020
  • VARYABILITY OF OVULATED EGGS OF COMMON CARP IN UZBEKISTAN ENVIRONMENTS
    KB Ergashev, BG Kamilov
    Scientific Bulletin of Namangan State University 2 (3), 210-214 , 2020
    2020
  • Oqdaryo suv omborida uchraydigan baliq turlari haqida ma’lumot.
    Rahmonova, Rasaxanova
    FOOD SECURITY: NATIONAL AND GLOBAL CHALLENGES. International Conference … , 2019
    2019
  • Oq do`ngpeshona bali`g`ining rivojlnishiga iod ayrim ma`lumotlar
    A Ashrapov
    FOOD SECURITY: NATIONAL AND GLOBAL CHALLENGES. International Conference … , 2019
    2019
  • To`rdor shilliqqurt – deroseras reticulatum (Muller, 1774) ning ko`payishiga haroratning ta`siri
    R Nilufar, Z Iroda
    ХХХI Miждународна науковоғпрактична iнтернет-конференцiя. Проблеми та … , 2016
    2016
  • Tamakining izmir navining dalaga o`tkazish mudatlarini tamaki tripsi bilan zararlanish darajasiga ta`siri
    ХХХI Miждународна науковоғпрактична iнтернет-конференцiя. Проблеми та … , 2016
    2016
  • Карамнинг турли навларида карам ширасининг айрим екологик хусусиятлари
    ХIV Miждународна науковоғпрактична iнтернет-конференцiя. Проблеми та … , 2015
    2015