ВЛИЯНИЕ РАЗЛИЧНЫХ ТЕХНОЛОГИЙ СОДЕРЖАНИЯ НА ФИЗИЧЕСКОЕ И ФИЗИОЛОГИЧЕСКОЕ РАЗВИТИЕ РЕМОНТНЫХ СВИНОК

The paper find out the regularities of physical and physiological development of the replacement young pigs, bred at different housing technologies. The experiment was conducted in OOO “SVK” Krasnogvardeyskiy district (industrial technology) and “SHP Svobodny trud” (traditional technology) of Novoselytsya districts of Stavropol Territory. In order to conduct the experiment on the basis of analogues, the Company selected bipedal pigs (50% large white (CB) + 50% Landrace (L)) aged one month. Each group had 25 pigs. In order to study the development of reproductive organs at the age of 6 and 8 months, a control slaughter of experimental animals was carried out (3 pigs from each group). The live body weight of 6-month-old pigs in OOO “SVK” averaged 110 kg, while in OOO “SHP “Svobodnyy trud” the animals weight was 67-70 kg. At the age of 8 months, the weight of animals in “SHP “Svobodnyy trud” was 103-110 kg, and in OOO “SVK” - 145-150 kg. At the age of 180 days the animal reproductive organs were at the initial stage of development. Only primary follicles of 0.1-0.3 cm in diameter were observed in ovaries weighing 3.1-3.5 g. The bipedal hybrids grown on the intensive technology were inferior to the pigs with the traditional technology of breeding for the development of reproductive organs. They had a lower uterine weight by 9.1%, ovarian weight by 12.9%, and the length of uterine and ovarian horns by 10.9 and 8.6%, respectively. Repair pigs grown according to the traditional technology had ovaries weighing 9.2 g and had fresh yellow bodies. When growing guinea pigs under industrial technology, the rejection of first-pigs amounted to 63.6%, while in the case of animals grown under traditional technology, this indicator was within 26.6%.Целью работы являлось установление закономерностей физического и физиологического развития ремонтного молодняка свиней, выращиваемых при различных технологиях содержания. Опыт проводился в ООО «СВК» Красногвардейского (промышленная технология) и ООО «СХП “Свободный труд”» (традиционная технология) Новоселицкого районов Ставропольского края. Для проведения опыта по принципу аналогов отобрали двухпородных свинок (50% крупная белая (КБ) +50% ландрас (Л)) в возрасте одного месяца. В каждой группе было по 25 свинок. С целью изучения развития репродуктивных органов в возрасте 6 и 8 месяцев провели контрольный убой подопытных животных (по 3 головы из каждой группы). Живая масса 6-месячных свинок в ООО «СВК» составила в среднем 110 кг, в то время как в ООО «СХП “Свободный труд”» масса животных равнялась 67– 70 кг. В 8-месячном возрасте масса животных в ООО «СХП “Свободный труд”» составила 103–110, а в ООО «СВК» – 145-150 кг. В возрасте 180 дней репродуктивные органы животных находятся на начальной стадии развития. В яичниках массой 3,1–3,5 г наблюдались только первичные фолликулы диаметром 0,1–0,3 см. Двухпородные гибриды, выращенные по интенсивной технологии, уступали свинкам с традиционной технологией выращивания по развитию органов репродукции. Масса матки у них была меньше на 9,1%, масса яичников – на 12,9, а длина рогов матки и яйцеводов меньше соответственно на 10,9 и 8,6%. У ремонтных свинок, выращенных по традиционной технологии, масса яичников составляла 9,2 г и в них имелись свежие желтые тела. При выращивании ремонтных свинок при промышленной технологии выбраковка свиноматок-первоопоросок составила 63,6%, в то время как у животных, выращенных по традиционной технологии, этот показатель был в пределах 26,6%

The need for transformative changes in the use of Indigenous knowledge along with science for environmental decision‐making in the Arctic

© 2020 The Authors. 1. Recent attention to the role of Indigenous knowledge (IK) in environmental monitoring, research and decision-making is likely to attract new people to this field of work. 2. Advancing the bringing together of IK and science in a way that is desirable to IK holders can lead to successful and inclusive research and decision-making. 3. We used the Delphi technique with 18 expert participants who were IK holders or working closely with IK from across the Arctic to examine the drivers of progress and limitations to the use of IK along with science to inform decision-making related to wildlife, reindeer herding and the environment. We also used this technique to identify participants' experiences of scientists' misconceptions concerning IK. 4. Participants had a strong focus on transformative change relating to the structure of institutions, politics, rights, involvement, power and agency over technical issues advancing or limiting progress (e.g. new technologies and language barriers). 5. Participants identified two modes of desirable research: coproducing knowledge with scientists and autonomous Indigenous-led research. They highlighted the need for more collaborative and coproduction projects to allow further refinement of approaches and more funding to support autonomous, Indigenous-led research. 6. Most misconceptions held by scientists concerning IK that were identified by participants related to the spatial, temporal and conceptual scope of IK, and the perceived need to validate IK using Western science. 7. Our research highlights some of the issues that need to be addressed by all participants in research and decision-making involving IK and science. While exact approaches will need to be tailored to specific social-ecological contexts, consideration of these broader concerns revealed by our analysis are likely to be central to effective partnerships.Anglia Ruskin University; EC H2020 Projects INTAROS and CAPARDUS. Grant Numbers: 727890, 869673; Nordic Council of Minister

Interaction between gaseous oxygen and germanium melt

Текст статьи не публикуется в открытом доступе в соответствии с политикой журнала.Interaction between the residual gaseous oxygen and germanium melt is analyzed. There is a quantitative relationship between oxygen concentration in a growing germanium single crystal, oxygen partial pressure in an inert gas, and water vapor pressure in hydrogen. The suggested theoretical interpretation of the interaction between oxygen and germanium melt is experimentally validated

Interaction between gaseous oxygen and germanium melt

Текст статьи не публикуется в открытом доступе в соответствии с политикой журнала.Interaction between the residual gaseous oxygen and germanium melt is analyzed. There is a quantitative relationship between oxygen concentration in a growing germanium single crystal, oxygen partial pressure in an inert gas, and water vapor pressure in hydrogen. The suggested theoretical interpretation of the interaction between oxygen and germanium melt is experimentally validated

Adsorptive and catalytic properties of nepheline mud

Aluminium production is accompanied by formation of ecologically dangerous gases (HF, SO2, CO, etc). There is offered the method of purification of waste gases from ecologically dangerous components. This method is concluded in their adsorption on nepheline mud, which is alumina production waste from nepheline ore. Nepheline mud is formed during the leaching from sintered material of sodium alluminate, whereupon it has a highly developed surface, similar to the zeolite surface. Dicalcium silicate (Ca2SiO4) is the basis (85%) of nepheline mud. Nepheline mud contains 3.5% of iron oxides, which, together with highly-developed surface, gives it the catalytic properties. Dicalcium silicate can react with flourhydric acid and sulphur acids with formation of fluorite and calcium sulphate. Adsorptive and catalytic abilities of nepheline mud were investigated by anode gas drawing from Söderberg electrolyzers threw the mud layer in the socket (70 mm diameter) with the rate of 8 l/min. The socket contained 300 g of dry nepheline mud. 21 testings were carried out (2 hours each). The total volume of the gas, drawn threw the socket, was 20 260 l. The composition of HF, SO2 and СО in gases at the input and output of the socket was analyzed. The following averaged results were obtained according to the carried out testings. The content of HF in gases was reduced from 428 at the input of the socket to 4.9 mg/m3 at the output of the socket (98.85% of HF were adsorbed by mud). Content of SO2 was reduced from 730 to 36.3 mg/m3 (95% was adsorbed). As a result of the catalytic properties of nepheline mud, and the process of oxidation of carbon monoxide, its content in gases was reduced from 5960 to 46.5 mg/m3 (approximately by 100 times). The offered method may be used by aluminium plants for anode gas purification and for deep gas purification from harmful impurities before their atmospheric emission

Adsorptive and catalytic properties of nepheline mud

Aluminium production is accompanied by formation of ecologically dangerous gases (HF, SO2, CO, etc). There is offered the method of purification of waste gases from ecologically dangerous components. This method is concluded in their adsorption on nepheline mud, which is alumina production waste from nepheline ore. Nepheline mud is formed during the leaching from sintered material of sodium alluminate, whereupon it has a highly developed surface, similar to the zeolite surface. Dicalcium silicate (Ca2SiO4) is the basis (85%) of nepheline mud. Nepheline mud contains 3.5% of iron oxides, which, together with highly-developed surface, gives it the catalytic properties. Dicalcium silicate can react with flourhydric acid and sulphur acids with formation of fluorite and calcium sulphate. Adsorptive and catalytic abilities of nepheline mud were investigated by anode gas drawing from Söderberg electrolyzers threw the mud layer in the socket (70 mm diameter) with the rate of 8 l/min. The socket contained 300 g of dry nepheline mud. 21 testings were carried out (2 hours each). The total volume of the gas, drawn threw the socket, was 20 260 l. The composition of HF, SO2 and СО in gases at the input and output of the socket was analyzed. The following averaged results were obtained according to the carried out testings. The content of HF in gases was reduced from 428 at the input of the socket to 4.9 mg/m3 at the output of the socket (98.85% of HF were adsorbed by mud). Content of SO2 was reduced from 730 to 36.3 mg/m3 (95% was adsorbed). As a result of the catalytic properties of nepheline mud, and the process of oxidation of carbon monoxide, its content in gases was reduced from 5960 to 46.5 mg/m3 (approximately by 100 times). The offered method may be used by aluminium plants for anode gas purification and for deep gas purification from harmful impurities before their atmospheric emission

Modular Design of Small Enzymatic Reaction Networks Based on Reversible and Cleavable Inhibitors

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