https://www.mongoliajol.info/index.php/MJAS/issue/feedMongolian Journal of Agricultural Sciences2023-02-09T01:49:02+00:00Dr. Bayarmaa Boldbayarmaa_iao@muls.edu.mnOpen Journal Systems<p>published by the <a title="MULS" href="http://www.muls.edu.mn" target="_blank" rel="noopener">Mongolian University of Life Sciences (MULS)</a> and <a href="https://maas.ac.mn/">Mongolian Academy of Agricultural Sciences</a> (MAAS)<strong>.</strong></p> <p><strong>Abstracting and indexing in <a title="Google Scholar" href="https://scholar.google.com" target="_blank" rel="noopener">Google Scholar</a>, <a title="Dimensions" href="https://app.dimensions.ai/discover/publication?and_facet_source_title=jour.1143886" target="_blank" rel="noopener">Dimensions</a>, <a title="EBSCO Discovery service" href="https://www.ebscohost.com/discovery" target="_blank" rel="noopener">EBSCO Discovery Service</a>, CABI-Cab Direct </strong>and <strong><a title="CNKI" href="https://enscholar.cnki.net/journal/search" target="_blank" rel="noopener">CNKI</a></strong></p>https://www.mongoliajol.info/index.php/MJAS/article/view/2446Study on distinct quality properties of cashmere from local goat breeds of Mongolia2023-02-02T03:26:37+00:00Mandakh Begzjavtsenkhamgalan@gmail.comEnkhtuya Dorjtsenkhamgalan@gmail.comBolormaa Vanchigdorjtsenkhamgalan@gmail.comEnkh-Amgalan Tseeleitsenkhamgalan@gmail.comAltantsetseg Dugartsenkhamgalan@gmail.com<p>The research was carried out in 2021 to determine the specific quality properties of local Mongolian breeds of cashmere goats. The research covered 122 herder households from 13 soums in 8 aimags. A total of 4,560 samples were collected from 1,522 goats representing the main factors determining cashmere quality: ecological habitat, various herd management practices, local breeds, age and sex of goats, and cashmere colour. Cashmere fibre diameter (FD), fibre curvature (FC), and coefficient of variation of fibre diameter (CVFD) were tested in 1,522 samples, and cashmere length was tested in 1,387 samples. The overall mean fibre diameter (MFD) was 16.1 μm, mean length (FL) was 44.9 mm, and fibre curvature (FC) was 61.9<sup>°</sup>/mm. Cashmere from one-year-old goats was significantly finer than cashmere from older goats (about 1.0 μm, P<0.05). Cashmere from does in the samples tested was significantly finer than cashmere from the bucks. Over the range in mean fibre diameter, from 13.5 to 19.0 µm, fibre curvature declined from 87.8 to 44.2<sup>°</sup>/mm. Of all cashmere samples, 40.6% belonged to super fine (≤15.5µm), 43.7% and 12.1% had a fibre diameter between 15.51-16.80 and 16.81-17.50 μm, respectively, and were suitable for knitwear. Only 3.6% of samples tested were between 17.51 to 19.00 μm and may only be suitable for weaving. The average CVFD values of cashmere of Mongolian breeds of cashmere goats was 22.5 ± 0.04%, with an individual range of 17.0-26.9%. This shows that it has lesser variation than Alashan white cashmere goats of Inner Mongolia Autonomous Region, China, where CVFD ranged from 27.09% to 41.39%. Compared to cashmere from China, Tajikistan, and Kyrgyzstan, with mean fibre curvature of 46, 46, and 58mm, respectively, the cashmere of local Mongolian breeds of goats would be considered curvier and longer, which makes stronger yarns. Short, higher crimped, softer cashmere may be preferred for woollen-spun yarns, but longer, lower crimped, softer cashmere may be preferred for woven yarn destined for knitwear. Fibre curvature of Mongolian cashmere goats declined an average of 6.1<sup>°</sup>/mm for a 1µm increase in MFD, which is similar to the 5.8<sup>°</sup>/mm observed in Chinese Liaoning goats, but less than the 13.6<sup>°</sup>/mm measured in controlled experiments with Australian goats. Significant differences were found between the cashmere of local Mongolian breeds of goats kept in open, natural rangelands and herded in a nomadic way in distinct ecological conditions of harsh continental climate compared to those breeds of goats kept in intensive farming. This shows the potential to offer distinct quality cashmere from local Mongolian breeds while maintaining proper management and selective breeding.</p>2022-11-18T00:00:00+00:00Copyright (c) 2022 Mandakh Begzjav, Enkhtuya Dorj, Bolormaa Vanchigdorj, Enkh-Amgalan Tseelei, Altantsetseg Dugarhttps://www.mongoliajol.info/index.php/MJAS/article/view/1360Impact of overgrazing and climate change on the lake ecosystem in arid region2023-02-02T03:38:28+00:00Uranchimeg Tserendorjorgilbold@muls.edu.mnBaigal-Amar Tuulaikhuuorgilbold@muls.edu.mnAyunshsuren Chananbaatarorgilbold@muls.edu.mnKhishigjargal Moonkhororgilbold@muls.edu.mnOyuntuya Sharavjamtsorgilbold@muls.edu.mnAriunsuren Pureveeorgilbold@muls.edu.mnTumenbayar Purevorgilbold@muls.edu.mnDambadarjaa Naranbatorgilbold@muls.edu.mnTuvshinbayar Danzanorgilbold@muls.edu.mnOrgilbold Myanganorgilbold@muls.edu.mnDambadarjaa Naranbatorgilbold@muls.edu.mn<p>Mongolia's geographical location, extreme climate, fragile ecosystems, agricultural dependence on climate requires adaptation to global climate change and smart usage of natural resources. The water level of most lakes in Mongolia had been steadily increasing from mid-1960s to 1995 and declining from 1996. The purpose of this study is to determine current condition by each ecosystem compartment in and around the Lake Duruutsagaan and to define cause of the lake shrinking and deterioration of ecosystem. The Lake Duruutsagaan ecosystem study was carried out in the following natural elements: climate, hydrology, hydrobiology, forest, soil, pasture, plant species composition, and animals. The lake surface area was slightly decreased by 24.21% from 10.02 km<sup>2 </sup>in 2003 to 7.59 km<sup>2</sup> in 2017. The lake water is highly mineralized, probably due to increases of evaporation of water. Also elevated concentrations of some chemical elements are detected in the lake water, including Phosphorus (22.6 mg L<sup>-1</sup>) and Arsenic (198 mg L<sup>-1</sup>). The high concentration of these two elements shown different kind of pollution existed in the lake. Probably, arsenic content in lake water is related to the geological composition of surrounding area, but elevated concentration of P can be attributed to the nutrient pollution due to soil erosion in surrounding area of lake. Species diversity in this lake is limited and only a few species of crustaceans that can tolerate under high salinity and polluted condition are present. All of soil samples have a low content of clay particles (between 2.6-8.5%). According to the soil samples data, pasture land in study area is moderately 80.95%, strongly 7.04% deteriorated due to direct and indirect effects of overgrazing. Especially, natural regeneration is not observed in the forest area. According to the study results, current condition of Lake Duruutsagaan and its surrounding area is indicating the need for some protection and restoration management.</p>2022-11-15T00:00:00+00:00Copyright (c) 2022 Uranchimeg Tserendorj, Baigal-Amar Tuulaikhuuhttps://www.mongoliajol.info/index.php/MJAS/article/view/1164Anti-Inflammatory Screening of Ulmus pumila L ethanolic extract2023-02-09T01:49:02+00:00Batmunkh Sosorburambolormaa_vet@muls.edu.mnDugar Delgermurunbolormaa_vet@muls.edu.mnPelden Bolormaabolormaa_vet@muls.edu.mn<p>Deciduous trees of Ulmus species were reported to exhibit antibiotic, antifungal, antioxidant, anti-inflammatory, hepatoprotective, neuroprotective, antiangiogenic, and antiviral effects that rich in flavonoids. In this study, phytochemical analysis and pharmacological activities of <em>Ulmus pumila L </em>were studied. The upper parts of <em>Ulmus pumila L</em> plants were grinded and extracted in 80% ethanol with a ratio of 1:10, infusing by maceration method. The total crude extract was fractioned into a group of solvents with increasing polarity: hexane, chloroform, ethyl acetate, and n-butanol. The results of the <a href="https://www.sciencedirect.com/topics/social-sciences/toxicology">toxicity</a> test showed the safety of the oral ingestion and treatment with ethanolic and ethyl-acetic fractions decreased inflammatory symptoms and exhibited protective effects for carrageenan-induced paw edema. These preliminary findings may support its traditional medicinal use and could be promising candidate with application in the treatment of inflammatory symptoms.</p>2022-11-28T00:00:00+00:00Copyright (c) 2022 Batmunkh Sosorburam, Dugar Delgermurun, Pelden Bolormaahttps://www.mongoliajol.info/index.php/MJAS/article/view/1163Bird repellant on sea buckthorn harvest2023-02-09T01:41:35+00:00Ganbold Dagvadorjelec_eng@muls.edu.mnTuvshinjargal Dorjsurenelec_eng@muls.edu.mnBaatarkhuu Dorjsurenelec_eng@muls.edu.mn<p>Animals, especially birds cause yield loss that is substantial burden on farmers Therefore, the laser scarecrow bird repellant equipment was constructed with purpose to reduce sea buckthorn yield loss caused by bird and field tested. The preliminary results that support that use of bird repellent would retain the harvesting yield of sea buckthorn and could be used further in farming areas.</p>2022-11-28T00:00:00+00:00Copyright (c) 2022 Ganbold Dagvadorj, Tuvshinjargal Dorjsuren, Baatarkhuu Dorjsuren