https://www.mongoliajol.info/index.php/MJAS/issue/feed Mongolian Journal of Agricultural Sciences 2019-08-18T12:20:32+00:00 Dr. Bayarmaa Bold bayarmaa_iao@muls.edu.mn Open Journal Systems <p>Scientific journal 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> https://www.mongoliajol.info/index.php/MJAS/article/view/1109 Development of Parasitemia and anemia caused by T. Orientalis infection in experimental calves 2019-08-18T12:20:32+00:00 Alimaa Ts amia11mn@yahoo.com Zolzaya M amia11mn@yahoo.com Yoshio Nakamura amia11mn@yahoo.com <p>In the present study, we have studied development of parasitemia and anemia which caused by T. orientalis infection in experimental calves using different kind of laboratory tests such us blood smear test, blood cell examination test&nbsp; and conventional PCR. The blood smear test is still one of easiest, effective diagnostic methods. According to our results the sensitivity of this test was as same as PCR.</p> 2018-06-29T00:00:00+00:00 ##submission.copyrightStatement## https://www.mongoliajol.info/index.php/MJAS/article/view/1110 Effects of concentrated feed enriched with zeolite and glycerin on productivity of beef cattle 2019-08-18T12:20:31+00:00 Erdenechimeg A n.togtokhbayar@muls.edu.mn Otgonjargal A n.togtokhbayar@muls.edu.mn Togtokhbayar N n.togtokhbayar@muls.edu.mn <p>Sixteen native breeds of cattle (n=16) were selected as experimental animal and divided into two control and two experimental group.&nbsp; The cattle for this study were two months old native breeds that all castrated males with average live weight 270±5 kg. During the experimental period cattle in first control group were grazed on open pasture, while second control group were kept in door and fed by well-balanced concentrated feed for beef cattle. However first experimental group were fed by feed ration enriched with 2% of native zeolite, whereas second experimental group was provided by ration with 2% of zeolite and 6% of glycerin. All of these cattle in two different groups were fed for 52 days in total, which divided into preparation and experimental periods of 7 and 45 days. Daily body weight of cattle in first control group was declined by 15 kg (357.5g) while it was increased by 22.25 kg (530g) in second control, 30.04 kg (714.5 g) in first experimental and 24.75 kg (589.3 g) in second experimental groups (p&lt;0.001).</p> 2018-06-29T00:00:00+00:00 ##submission.copyrightStatement## https://www.mongoliajol.info/index.php/MJAS/article/view/1113 Needs and suitability assessment for hay land planning 2019-08-18T12:20:30+00:00 Myagmarjav I myagmarjav@muls.edu.mn Myagmartseren P myagmarjav@muls.edu.mn <p>The paper addresses planning issues of hay land based on new methods of suitability and need’s assessment of local area.&nbsp; In order to develop the hay land future use and planning for 2023 of Erdenetsagaan soum, Sukhbaatar aimag, the assessment of the haymaking situation, the number of livestock growth and needs of nutritional resources for animal husbandry were calculated. According to the tested new suitability assessment of hay land, 4.37 percent or 74164 ha of land are most suitable, and 29.21 percent or 496014.3 ha are unsuitable. In order to calculate the nutritional needs of livestock in the future, the demand of green fodder for hay cut is estimated at 6712 t in 2023. The need for this fodder supply requires 8391 ha hay fields in 2023. Thus, demand (6712 t hay from 8391 ha of field) of green fodder will be supplied after proper implementation of plan (74164 ha suitable field to hay land usage).</p> 2018-06-29T00:00:00+00:00 ##submission.copyrightStatement## https://www.mongoliajol.info/index.php/MJAS/article/view/1114 Nanocrystal, phase transformation and microstructure of Ni50Ti50 shape memory alloy 2019-08-18T12:20:29+00:00 Dovchinvanchig M Dovchinvanchig@muls.edu.mn Chunwang Zhao Dovchinvanchig@muls.edu.mn <p>The nanocrystal, phase transformation and microstructure behavior of Ni<sub>50</sub>Ti<sub>50</sub> shape memory alloy was investigated by scanning electronic microscope, X-ray diffraction and differential scanning calorimetry. The results showed that the microstructure of Ni-Ti binary alloy consists of the NiTi<sub>2</sub> phase and the NiTi matrix phase. One-step phase transformation was observed alloy.</p> 2018-06-29T00:00:00+00:00 ##submission.copyrightStatement## https://www.mongoliajol.info/index.php/MJAS/article/view/1111 Potential impacts of climate change on Mongolia’s plant protection status quo 2019-08-18T12:20:30+00:00 Batkhuyag B batnarano@yahoo.com Batnaran Kh batnarano@yahoo.com <p>Mongolia’s 2030 Sustainable Development Vision set a goal to be a self-sufficient in grain, potatoes and vegetables by 2030. However, Mongolia’s pastoral animal husbandry and rain-fed agriculture are extremely sensitive to climate change. The Asian migratory locust is considered as the most harmful grasshopper in the world. Until 1970<sup>th</sup>, these locust’s distribution areas in Mongolia were confined to oasis of Gobi deserts. A study on Asian migratory locust in Russia predicts distribution and formation of new permanent habitats of the locust in Chita oblast, Krasnoyarsk territory and Republic of Tyva. The Colorado beetle is one of the world’s most infamous invasive species due to its rapid adaptation to a wide range of ecological conditions and ability to disperse long distances. The climate modeling of Colorado beetle showed that with current trend, the beetle will expand its distribution into the most eastern and north-eastern regions of the Russian Federation. In China, the Colorado beetle was first detected in Xinjiang in 1993 and subsequently spread eastward. In China the Colorado beetle is currently expanding its areas at rate of 25 kms year (12-45 kms/year). Both species’ distribution patterns in neighboring countries show eventual establishment of permanent habitats around Mongolia. Their invasion to Mongolia will threaten country’s food security due to direct destruction of cereal and potato crops, and increased application of highly toxic pesticides. In light of these threats, Mongolia should start taking serious preventive measures by increasing surveillance and dedicated risk assessment studies for potential agricultural pests and diseases.</p> 2018-06-29T00:00:00+00:00 ##submission.copyrightStatement## https://www.mongoliajol.info/index.php/MJAS/article/view/1115 The peculiarities of Sea-buckthorn propagation with green cuttings 2019-08-18T12:20:28+00:00 Bopp V. L vl_kolesnikova@mail.ru <p>No abstract in English</p> 2018-06-29T00:00:00+00:00 ##submission.copyrightStatement##