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THE EFFECT OF THE REARING SYSTEM AND GENOTYPE OF LAYING HENS ON FATTY ACID COMPOSITION OF EGGS 蛋鸡饲养制度和基因型对鸡蛋脂肪酸组成的影响
Pub Date : 2023-03-01 DOI: 10.46793/sbt28.189r
S. Rakonjac, S. Bogosavljević-Bošković, V. Dosković, M. Lukić, Z. Škrbić, V. Petričević, M. Petrović
This paper aimed to determine the effect of the rearing system and genotype of laying hens on the fatty acid composition of eggs. Seven times during the one-year production cycle, 15 eggs from all four experimental groups were taken, and fatty acid composition was determined on pooled samples. Based on the obtained results, it can be concluded that the highest content of SFA had organic New Hampshire eggs, MUFA organic Isa Brown eggs and PUFA floorproduced eggs. Regarding the ratio of n-6:n-3 PUFA, it can be noted that the organic eggs had a lower ratio compared to the floor eggs, as well as the New Hampshire breed compared to the Isa Brown hybrid.
本试验旨在研究蛋鸡饲养制度和基因型对鸡蛋脂肪酸组成的影响。在1年的生产周期内,取4个试验组共7次,各取15只鸡蛋,并对混合样品进行脂肪酸组成测定。综上所述,SFA含量最高的是有机新罕布夏蛋、MUFA有机Isa Brown蛋和PUFA地板蛋。关于n-6:n-3 PUFA的比例,可以注意到有机鸡蛋的比例低于地板鸡蛋,新罕布什尔品种的比例低于伊萨布朗杂交品种。
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引用次数: 0
ANALYSIS OF GENOTYPE BY ENVIRONMENT INTERACTION FOR SPIKE TRAITS IN WINTER SIX-ROW BARLEY 冬六行大麦穗部性状的环境互作基因型分析
Pub Date : 2023-03-01 DOI: 10.46793/sbt28.045b
K. Bratković, K. Luković, V. Perišić, J. Maksimović, J. Savić, V. Đekić, Mirela Matković Stojšin
This research was conducted with some spike traits of twenty winter six-row barley genotypes in six environments. The aim of this study was to determine the significance and take advantage useful genotype by environment interacton (GEI) by applying AMMI-1 model. High statistical significance GEI was determined. Wide adaptability genotypes were J-29, J-33, J-9 and J-21 for spike length (SL) as Grand and Ozren for grain number per spike (GNS). The winner genotypes in all environments were Ozren and Grand for SL as Ozren for GNS. All the examined environments can be considered as one megaenvironment, which indicates that unpredictable interactions dominate in this research.
对20个冬六行大麦基因型在6种环境下的穗部性状进行了研究。本研究的目的是利用AMMI-1模型来确定环境相互作用(GEI)的意义和利用有用基因型。GEI具有较高的统计学意义。广适应性基因型为J-29、J-33、J-9和J-21,穗长基因型为Grand,穗粒数基因型为Ozren。所有环境下的优胜基因型分别为:SL为Ozren和Grand, GNS为Ozren。所有被检测的环境可以被视为一个大环境,这表明不可预测的相互作用在本研究中占主导地位。
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引用次数: 0
FLOWERING PHENOPHASE OF SOME APRICOT („P. armeniaca L.“) CULTIVARS DEPENDING ON AIR TEMPERATURE 一些杏的开花物候期(p。不同气温的亚美尼亚(armeniaca L.)品种
Pub Date : 2023-03-01 DOI: 10.46793/sbt28.125g
I. Glišić, R. Ilić, T. Milošević, G. Paunović, I. Glišić, Zorica Radičević
The paper presents the three-year results of the effect of basic climatic parameters on the flowering of 12 apricot cultivars in conditions of Čačak. The significant differences in the beginning, progression and duration of flowering among years were determined. The beginning of flowering in 2020 was on March 12, in 2021 on March 1, and in 2022 on March 24. Flowering phenophase in one cultivar lasted between 6 and 9 days in 2022 and between 8 and 16 days in 2021. Differences in the beginning of flowering among cultivars were more pronounced in years with earlier flowering date.
本文介绍了在Čačak条件下12个杏品种3年基本气候参数对开花的影响。不同年份的花期、花期和花期差异显著。2020年的花期是3月12日,2021年是3月1日,2022年是3月24日。一个品种的开花物候期在2022年为6 ~ 9天,在2021年为8 ~ 16天。不同品种间开始开花的差异在开花日期较早的年份更为明显。
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引用次数: 0
CONTRIBUTION TO THE KNOWLEDGE OF THE ANTIOXIDANT POWER, PHENOLIC AND MINERAL COMPOSITION OF SANGUISORBA MINOR SCOP 对地榆的抗氧化能力、酚类和矿物成分的研究有贡献
Pub Date : 2023-03-01 DOI: 10.46793/sbt28.305dj
G. Djelic, M. Pavlovic, S. Branković, D. Brković, Z. Simić, V. Veličković
In this study, extracts of the aerial partsof Sanguisorba minorScop. wereanalysed for antioxidant activity, quantification of the total phenolic and flavonoid and bioaccumulation potential of heavy metals.The total phenols amounts was the highest at acetone´sextracts of root (117.27 mg GAE /g dry weight), stem and leaf (133.61 mg GAE /g dry weight ) and flower (116.77 mg GAE /g dry weight) and total flavonoids acetone´sextractsof flower (50.69 mg RU/g). The highest DPPH-scavenging capacity had flower methanol extract 7.08 (IC50 µg/ml). The plant accumulates large amounts of Zn, Ni and Cu in the root, stem and leaf and flower. Otherwise Mn, Cr and Pb are represented in whole plant.
在本研究中,对小地榆地上部的提取物进行了研究。分析了抗氧化活性、总酚和类黄酮的定量以及重金属的生物蓄积潜力。总酚含量最高的部位为根丙酮提取物(117.27 mg GAE /g干重)、茎叶丙酮提取物(133.61 mg GAE /g干重)、花丙酮提取物(116.77 mg GAE /g干重)和花总黄酮提取物(50.69 mg RU/g)。花甲醇提取物清除dpph的能力最高,为7.08 (IC50µg/ml)。植物在根、茎、叶和花中积累了大量的Zn、Ni和Cu。另外,Mn、Cr和Pb在整个植物中都有代表。
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引用次数: 0
ECONOMIC RESULTS OF BROILERS PRODUCTION ON THE FAMILY FARM 家庭农场肉鸡生产的经济效益
Pub Date : 2023-03-01 DOI: 10.46793/sbt28.213v
B. Veljković, Milica Kostić, S. Rakonjac, R. Koprivica, M. Gavrilović, M. Petrović
The fattening of broilers in Serbia is partially organized through contract production in small family farms that fatten broilers for the needs of large companies. The article contains an economic analysis of this small family farm, which produces about 12 000 kg of chicken meat per year on a small area of 120 m2, with one family member involved all the time and other members helping as needed. Fattening broilers on the farm is organized in two ways: contract fattening up to 1 kg for 25 days and fattening up to 3.5-4 kg for 56 days. In the case of fattening broilers up to 25 days of age, on average, feed costs account for 45%, day-old chicks for 26%, and labor costs for 22%. For broilers up to 56 days of age, the largest average share is feed costs 62.4% and labor costs 26.2%. The price of fattened broilers did not change during the fattening period, so the realized production value was the same in one fattening method and similar in the other fattening method, while cost of production increased in each fattening round, which affected the reduction of contribution margine. In addition to the increase prices of feed mixtures, positive economic results were achieved on the farm, and with contract production, secure purchasing was ensured and risks in production were reduced.
塞尔维亚肉鸡的增肥部分是通过小型家庭农场的合同生产来组织的,这些农场为大公司的需求增肥肉鸡。本文对这个小型家庭农场进行了经济分析,该农场在120平方米的小面积上每年生产约1.2万公斤鸡肉,家庭成员一直参与其中,其他成员在需要时提供帮助。养鸡场的育肥肉鸡采用两种方式组织:25天育肥1公斤,56天育肥3.5-4公斤。对于25日龄以下的育肥肉鸡,平均饲料成本占45%,日龄雏鸡占26%,人工成本占22%。56日龄以下肉鸡的平均成本占比最大,为饲料成本62.4%,人工成本26.2%。育肥肉鸡的价格在育肥期间没有变化,因此一种育肥方式实现的生产价值相同,另一种育肥方式实现的生产价值相近,而每一轮育肥的生产成本都在增加,影响了贡献边际的降低。除了饲料混合物价格上涨外,该农场还取得了积极的经济效益,并通过合同生产,确保了安全采购,降低了生产风险。
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引用次数: 0
DIVNAʼ AND ʻPETRAʼ NEW LATE RIPENING PLUM CULTIVARS RELEASED AT FRUIT RESEARCH INSTITUTE, ČAČAK “Divna”和“khapetra”晚熟李子新品种在水果研究所发布,ČaČak
Pub Date : 2023-03-01 DOI: 10.46793/sbt28.133m
N. Milosevic, I. Glišić, M. Đorđević, S. Marić, S. Radičević, D. Jevremović
In this study, the most important characteristics of tree vigour and productivity, as well as pomological traits (fruit morphometric and chemical characteristics) of new late ripening cultivars ʻDivnaʼ and ʻPetraʼ released at Fruit Research Institute, Čačak were evaluated and compared to standard cultivar ʻStanleyʼ. Both new cultivars had slightly larger tree and yield in comparison to ʻStanleyʼ, but smaller fruit in general. ʻPetraʼ had the best chemical properties of fruit followed by ʻDivnaʼ. Both new cultivars could be very interesting for growing in new orchards due to very late ripening time, good fruit quality and high cropping potential and also could be used in further breeding activities.
本研究对中国果树研究所Čačak发布的晚熟新品种“迪芙娜”和“佩特拉”的最重要的树活力和生产力特征,以及果实形态计量学和化学特征进行了评价,并与标准品种“斯坦利”进行了比较。这两个新品种的树和产量都比赤柱略大,但果实总体上较小。佩特拉的果实化学性质最好,迪芙娜次之。这两个新品种由于成熟时间较晚,果实品质好,种植潜力大,在新果园种植非常有趣,也可以用于进一步的育种活动。
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引用次数: 0
BIOINDICATION ASSESSMENT OF WATER, AIR AND SOIL QUALITY 水、空气和土壤质量的生物指示评价
Pub Date : 2023-03-01 DOI: 10.46793/sbt28.297dj
D. Đukić, L. Mandić, Vesna Đurović, M. Pešaković, M. Stojanova
Various bioindicative organisms can be used for rapid assessment of environmental quality. For the bioindicative assessment of air quality lichens are most often used; primarily planktonic microorganisms as well as benthic organisms including macrophytes for water quality; microbiological, enzymatic, lichenological, zoological and phytoindicative methods for quality of soil.
多种生物指示生物可用于环境质量的快速评价。对于空气质量的生物指示性评估,地衣是最常用的;主要是浮游微生物以及底栖生物,包括对水质有益的大型植物;土壤质量的微生物、酶、地衣学、动物学和植物指示性方法。
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引用次数: 0
MICROCONTROLLER CONTROL SYSTEM FOR A CONVECTIVE DEHYDRATOR 一种对流脱水机的单片机控制系统
Pub Date : 2023-03-01 DOI: 10.46793/sbt28.365l
A. Lukyanov, S. Studennikova, Luidmila N. Alekseenko, David E. Bidenko, V. Mladenović, Marko Petrović, E. A. Mardasova
A microcontroller control system for a convective dehydrator has been developed. The IoT-class microcontroller provides control of the dehydrator, monitoring of the dehydration process, and transmission of telemetry data to the cloud service. Telegram bot is used as a cloud service. High-precision MEMS sensors BME-280 are used. To improve the accuracy, a mutual calibration procedure was implemented. Monitoring the air absolute moisture at the outlet of the dehydrator allows you to control the drying process in real-time. Telemetric information collected in the cloud service for the entire dehydration procedure is suitable for research and modeling of convective dehydration processes.
研制了一种对流脱水机的单片机控制系统。物联网级微控制器提供对脱水器的控制,对脱水过程的监控,以及将遥测数据传输到云服务。Telegram bot被用作云服务。采用高精度MEMS传感器BME-280。为了提高精度,采用了相互校准程序。监测脱水机出口的空气绝对湿度,可以实时控制干燥过程。在云服务中收集的整个脱水过程的遥测信息适合于对流脱水过程的研究和建模。
{"title":"MICROCONTROLLER CONTROL SYSTEM FOR A CONVECTIVE DEHYDRATOR","authors":"A. Lukyanov, S. Studennikova, Luidmila N. Alekseenko, David E. Bidenko, V. Mladenović, Marko Petrović, E. A. Mardasova","doi":"10.46793/sbt28.365l","DOIUrl":"https://doi.org/10.46793/sbt28.365l","url":null,"abstract":"A microcontroller control system for a convective dehydrator has been developed. The IoT-class microcontroller provides control of the dehydrator, monitoring of the dehydration process, and transmission of telemetry data to the cloud service. Telegram bot is used as a cloud service. High-precision MEMS sensors BME-280 are used. To improve the accuracy, a mutual calibration procedure was implemented. Monitoring the air absolute moisture at the outlet of the dehydrator allows you to control the drying process in real-time. Telemetric information collected in the cloud service for the entire dehydration procedure is suitable for research and modeling of convective dehydration processes.","PeriodicalId":271044,"journal":{"name":"1st INTERNATIONAL SYMPOSIUM ON BIOTECHNOLOGY : proceedings","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131621590","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
BOVOLID – CHEMICAL COMPOUND FOR EVALUATING THE AGE OF WHITE MULBERRY LEAVES 测定白桑叶年龄的Bovolid化合物
Pub Date : 2023-03-01 DOI: 10.46793/sbt28.479m
Vojkan Miljković, M. Mladenović, N. Radulović
Tree Morus species are growing in Serbia, Morus alba, Morus nigra and Morus rubra. Morus leaves are used in traditional medicine, and after collecting them, drying is most practiced method for preservation. Hydrodistillation of 2 fresh and 2 dryed for one month samples of Morus alba and nigraleaves was done by using the original Clevenger-type apparatus. The composition of essential oils was determined by GC-MS aparathus. The yields of essential oils obtained by hydrodistillation were 0.0011 and 0.0012% from the dried plant material (MNL-2 and MAL-2, respectively) and 0.0080% (w/w) from both samples of fresh leaves (MNL-1 and MAL-1). The predominant constituent in all essential oils was trans-phytol. Only the essential oil obtained from dried M. alba leaves contained the chemical compound bovolid (8.1%). Based on results, bovolid can be used as indicator for evaluating the age of white mulberry leaves.
桑树种生长在塞尔维亚,有白桑树、黑桑树和红桑树。桑叶在传统医学中使用,收集后,干燥是最常用的保存方法。采用独创的clevenger型装置,对2份新鲜和2份干燥1个月的桑叶和黑树叶样品进行了加氢蒸馏。采用气相色谱-质谱联用仪测定精油成分。从干燥的植物材料(MNL-2和MAL-2)中加氢蒸馏得到的精油得率分别为0.0011%和0.0012%,从新鲜叶片(MNL-1和MAL-1)中得到的精油得率为0.0080% (w/w)。所有精油的主要成分是反式叶绿醇。仅从干燥的白桦叶中提取的精油中含有化合物bovolid(8.1%)。结果表明,bovolid可作为评价白桑叶龄的指标。
{"title":"BOVOLID – CHEMICAL COMPOUND FOR EVALUATING THE AGE OF WHITE MULBERRY LEAVES","authors":"Vojkan Miljković, M. Mladenović, N. Radulović","doi":"10.46793/sbt28.479m","DOIUrl":"https://doi.org/10.46793/sbt28.479m","url":null,"abstract":"Tree Morus species are growing in Serbia, Morus alba, Morus nigra and Morus rubra. Morus leaves are used in traditional medicine, and after collecting them, drying is most practiced method for preservation. Hydrodistillation of 2 fresh and 2 dryed for one month samples of Morus alba and nigraleaves was done by using the original Clevenger-type apparatus. The composition of essential oils was determined by GC-MS aparathus. The yields of essential oils obtained by hydrodistillation were 0.0011 and 0.0012% from the dried plant material (MNL-2 and MAL-2, respectively) and 0.0080% (w/w) from both samples of fresh leaves (MNL-1 and MAL-1). The predominant constituent in all essential oils was trans-phytol. Only the essential oil obtained from dried M. alba leaves contained the chemical compound bovolid (8.1%). Based on results, bovolid can be used as indicator for evaluating the age of white mulberry leaves.","PeriodicalId":271044,"journal":{"name":"1st INTERNATIONAL SYMPOSIUM ON BIOTECHNOLOGY : proceedings","volume":"102 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131086906","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
THE INFLUENCE OF INOCULATION ON THE CHANGE OF NITROGEN SUBSTANCES IN SILAGE 接种对青贮中氮物质变化的影响
Pub Date : 2023-03-01 DOI: 10.46793/sbt28.205s
Blagoje Stojković, N. Đorđević, A. Bozickovic, S. Obradović
The paper presents a comparative overview of the influence of homofermentative and heterofermentative lactic acid bacteria (LAB) on the degree of proteolysis and aerobic stability in Fabacea and Poacea silages. When using Lactobacillus buchneri, compared to Lactobacillus plantarum, in alfalfa silages, a significant increase in the pH value (4.67:4.23), a decrease in the amount of lactic acid (11.8:24.3 g/kg DM) and an increase in the amount NH3-N (70.6:49.8 g/kg N). When using heterofermentative LAB (L. hilgardii and L. Buchneri) compared to the control treatment, a significant increase in the acetate:lactate ratio (3.64:1.85) and a decrease in the number of yeasts was found in corn silages, while there were no significant differences in pH value and amount of NH3-N. Due to the often negative impact of heterofermentative LAB on proteins in leguminous silages, research should be continued in order to determine the best LAB combinations for corn silage, where probiotic yeasts should also be included.
本文比较综述了同源和异源乳酸菌(LAB)对豆科植物和豆科植物青贮中蛋白质水解程度和有氧稳定性的影响。与植物乳杆菌相比,施用布氏乳杆菌显著提高了紫花苜蓿青贮的pH值(4.67:4.23),显著降低了乳酸含量(11.8:24.3 g/kg DM),显著提高了NH3-N含量(70.6:49.8 g/kg N)。施用异源发酵乳酸菌(hilgardii和布氏乳杆菌)显著提高了玉米青贮的乙酸乳酸比(3.64:1.85),显著降低了酵母数量。pH值和NH3-N的含量无显著差异。由于异发酵乳酸菌对豆科青贮蛋白质的负面影响,应继续研究以确定玉米青贮的最佳乳酸菌组合,其中益生菌酵母也应包括在内。
{"title":"THE INFLUENCE OF INOCULATION ON THE CHANGE OF NITROGEN SUBSTANCES IN SILAGE","authors":"Blagoje Stojković, N. Đorđević, A. Bozickovic, S. Obradović","doi":"10.46793/sbt28.205s","DOIUrl":"https://doi.org/10.46793/sbt28.205s","url":null,"abstract":"The paper presents a comparative overview of the influence of homofermentative and heterofermentative lactic acid bacteria (LAB) on the degree of proteolysis and aerobic stability in Fabacea and Poacea silages. When using Lactobacillus buchneri, compared to Lactobacillus plantarum, in alfalfa silages, a significant increase in the pH value (4.67:4.23), a decrease in the amount of lactic acid (11.8:24.3 g/kg DM) and an increase in the amount NH3-N (70.6:49.8 g/kg N). When using heterofermentative LAB (L. hilgardii and L. Buchneri) compared to the control treatment, a significant increase in the acetate:lactate ratio (3.64:1.85) and a decrease in the number of yeasts was found in corn silages, while there were no significant differences in pH value and amount of NH3-N. Due to the often negative impact of heterofermentative LAB on proteins in leguminous silages, research should be continued in order to determine the best LAB combinations for corn silage, where probiotic yeasts should also be included.","PeriodicalId":271044,"journal":{"name":"1st INTERNATIONAL SYMPOSIUM ON BIOTECHNOLOGY : proceedings","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123712094","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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