bluuebunny/crossref_metadata_2025_split huggingface dataset:
Development and implementation of a project for an open-air cage complex for keeping wild animals in captivity
Authors: Moiseeva T A 
Published: March 2021

Abstract
The article discusses the construction of enclosure complexes for keeping wild animals in captivity. The absence of a clear definition and regulation of the term “open-air cage keeping” is noted, which complicates the organization of the open-air cage keeping of animals. It is indicated that for the development and implementation of an open-air cage complex, one should be guided by the building codes adopted in Russia, as well as the norms for organizing zoo nurseries, and the norms for keeping animals. The step-by-step rules for choosing a place, construction of cages, corrals, enclosures and other premises for keeping animals, features of electrical wiring, water supply, sewerage, heating, ventilation, and features of office premises are analyzed in detail. The selection and training of personnel for enclosure complexes should be based on the number and types of animals kept in the enclosure and working conditions (degree of mechanization, electrification). It is concluded that modern enclosures are a complex of structures for keeping animals, as well as their maintenance (administrative, economic, research and production, veterinary zone).
Efficiency evaluation of anticoccidials against the background of chickens infection with field coccidia isolate
Authors: Yakovleva I N , Yakovleva E G , Dronov V V , Topuria L Y 
Published: March 2021

Abstract
The article gives a comparative efficiency evaluation of anticoccidials of different pharmacological groups at experimental infection of chickens with field coccidia isolate selected from the production sites of the poultry complex of the Belgorod region. The selected mixture of field strains of coccidia is partially resistant to eimicide, maksiban, esdot, decox (anticoccidial index is from 150.0 to 156.3). High sensitivity was noted to robenz, avatek and tsigro (anticoccidial index is from 160.4 to 177.1), in the absence of birds’ death in all groups that receive preparations. The use of preparations against the background of chickens’ infection reduced the loss of body weight gain. In groups receiving eimicide, maksiban and esdot it reduced by 2.3 and 4%, respectively; in groups receiving decox, robenz, avatec and zigro it reduced by 5.7.11 and 15%. It should be taken into account that the partial resistance of coccidia to the preparations mentioned above can be increased and transmitted genetically. Therefore, there is a need for constant monitoring and rotation of preparations at this poultry complex.
Innovative solutions used in Holstein breeding by Osnabrück livestock association (OHG)
Authors: Titorenko K , Zhichkin K 
Published: March 2021

Abstract
The article analyzes the dairy farming industry in Russia and the Samara region, presents the experience, achievements and strategy of innovative technologies in the breeding of the Holstein breed - the selection of the Osnabrück livestock breeding association in Germany. The aim of the research is to study the efficiency of selection and genetic work with cattle of German selection and transfer the experience gained to the conditions of the Samara region. In Germany, the main goal is to achieve the following indicators: to obtain from each bull at least 100 daughters in at least 80 farms for the indicator of productive breeding value and at least 80 daughters in at least 60 farms for the indicator of exterior breeding values. The use of the German genomic selection of the Holstein breed in Russia puts all selection and breeding work on a new intensive path of development of dairy cattle breeding, resulting in an increase in the number of pedigree animals and an increase in their milk productivity. The study and application of the experience of creating a German breeding service in the Russian Federation and the Samara region will significantly increase milk production, improve the genetic quality of pedigree livestock, and reduce the unit costs for breeding due to the timely identification and removal of animals with low genetic potential from reproduction.
Detecting bioluminescence conditions in fruit bodies of two species of Armillaria basidiomycetes
Authors: Puzyr A P , Burov A E , Bondar V S 
Published: March 2021

Abstract
Mycelia of various Armillaria fungi are bioluminescent while the fruit bodies do not emit light. The presence in fruit bodies of Armillaria species of enzymes involved in the fungal bioluminescence was investigated by treating them with an exogenous analogue of the substrate for the light-emitting reaction. For this, hot extracts from nonluminous fungus Pholiota squarrosa were used. Upon spraying the pristine and transversely cut fruit bodies with the extracts, light emitting regions of different intensity were revealed. This suggests that the fruit bodies of the studied species are nonluminous due to lack of the substrate for light luminescent reaction. The prolonged incubation of the fruit bodies in water elevated the bioluminescence level. A possible mechanism which can explain this phenomenon is discussed.
Screening of bacterial kidney disease in the North-West region of the Russian Federation
Authors: Alontseva D A , Zavyalova E A , Droshnev A E , Bulina K Yu 
Published: March 2021

Abstract
Our country has all potential for development of an aquaculture as one of sectors of agriculture, due to a huge number of fresh water areas and the extended line of the seas. Bacterial kidney disease, a chronic disease in the Salmonidae family, causes significant damage to aquaculture development. Modern proposals for the use of various antibiotics and chemotherapeutic drugs do not bring a significant effect to control the spread of this disease, and due to the peculiarity of the pathogenesis of the disease, the development of an effective vaccine against bacterial kidney disease is currently difficult, therefore the most effective method of controlling and preventing the disease is early diagnosis of the disease. The article discusses the results of exploratory studies of bacterial kidney disease in fish-breeding enterprises of the North-West region of the Russian Federation for the period from March 2019 to March 2020.
Protein spectrum and blood biochemical parameters in stallions with different sperm motility
Authors: Atroshchenko M M , Shitikova A M , Engalycheva M G , Sinyakina A I , Nezalenova A A 
Published: March 2021

Abstract
The analysis of the protein spectrum of blood was carried out by electrophoresis in agarose gel in combination with the determination of biochemical parameters in 30 stallions of the Arabian breed, divided into groups according to the indicator of progressive sperm mobility. Group 1 included stallions with progressive mobility (PM) up to the 25th percentile (PM, % <53.35), group 2 - stallions with progressive mobility within the 25-75th percentile (53.35 <PM, % <65.18), and group 3 - stallions with progressive mobility above the 75th percentile (PM, %> 65.18). In the 1st group of stallions, the highest concentrations of α2-globulins and γ-globulins of blood were found. The 3rd group of stallions showed the lowest concentration of glucose and urea.
Monitoring of production processes in the waste processing industry and their impact on the environment
Authors: Kovalev I V , Kovalev D I , Voroshilova A A , Tuev E V , Tueva E V 
Published: March 2021

Abstract
Methods and practical implementations of monitoring production processes in industrial processing of solid household waste and their impact on the environment are considered. This makes it possible to increase the efficiency of the interaction of the automated enterprise management system with the objects of the enterprise in the implementation of their modeling, as well as to raise the level of controllability of the production system. With the implementation of continuous analysis, the problem of optimizing the links between processing facilities is solved in order to ultimately increase the output of high-quality products, the company’s response to external changes and the requirements of environmental standards. The presently actual production facilities providing processing of solid household waste are considered. Within the framework of the IDEF0 functional modeling method, the characteristic properties of enterprises are determined and their representation is built in the form of an IDEF0-model.
Models for dominating forest cover type prediction
Authors: Petrusevich D A 
Published: March 2021

Abstract
The question of the most suitable forest tree species for defined area and landscape has been investigated in the paper. A set of classifiers is constructed in order to build relations between type of soil and other features of forest area and preferable species of trees. The decision tree classifiers, ensemble methods implementing bagging and boosting over such trees are used. The machine learning methods are implemented to obtain the best suited tree species to cover given forest area. This classification task is one of very important problems of forest regeneration process. Efforts of ecologists can have better results if there are expert systems allowing to understand the best forest cover type for areas of forest fires or deforestation that takes place because of human factor. Results and conclusions of this paper can be used in processing of other forest recover tasks. The same methods can be implemented in order to get the preferable tree species for different areas if there’s enough data to solve these tasks with machine learning technique.
Ecological and coenotic characteristics of Vaccinium myrtillus L. in southern taiga forest communities
Authors: Kislitsina A V , Egoshina T L , Luginina E A 
Published: March 2021

Abstract
Materials in the paper characterize ecological range of bilberry (Vaccinium myrtillus L.) in southern taiga forests of Kirov region. It is significantly influenced by illumination, soil humidity, richness and acidity. Parameters of bilberry contribution to lower forest synfolium, structural and morphological peculiarities of the species were defined, as well as productivity.
Forest fires and forestry firefighting organization
Authors: Zhichkina L N , Nosov V V , Zhichkin K A , Kudryavtsev V V , Abdulragimov I A , Burlankov P S 
Published: March 2021

Abstract
The article discusses the situation with forest fires in the Samara region and suggests measures to combat them. The purpose of the work is to analyze the occurrence of fires in the Samara region, including in the Kinel-Cherkasy forestry. The study intends to solve the following problems: - to study the dynamics and causes of forest fires in the Samara region and the Kinel-Cherkasy forestry; - determine the extent of damage caused to the region forests by fires; - to analyze measures to improve the fire situation. Research methods: the abstract-logical method was used to assess the general situation with forest fires in the forestry of the Samara region; situational and system analyzes, econometric methods and the method of expert evaluations - to determine measures to improve the fire situation. Forest fires have a significant impact on the situation with the forests in the region. If in 2017 the share of forests killed by fires was less than 10%, then in 2010 and 2018 - more than 94%. In absolute terms, the minimum in 2018 was 68.8 ha, the maximum was 1687 ha (2010), which amounted to 0.25% of the region total forest area. It is necessary to carry out fire and preventive measures, taking into account the fire hazard situation in the area and the anthropogenic load on forests and adjacent territories. Based on the analyzed data, it is necessary to ensure the conservation of adult forest plantations and unclosed forest crops, taking into account the use of neighboring territories by farms and enterprises.
Intensive rice production systems in Europe
Authors: Svečnjak Z 
Published: March 2021

Abstract
In the European Union rice is mainly grown in the Mediterranean countries with Italy and Spain being the top producers. Toward the end of 20th century, the number of farms dramatically decreased in all rice producing countries. For example, in Italy the total number of rice farms decreased to about one-half while the mean cultivating area per farm showed a proportional increase (from 20 to around 50 ha). Due to the high cost and shortage of human labor in Europe, rice crop in Europe is mostly cultivated under the intensive production system. In Italy, a single farm worker can manage from 40 to 60 ha of rice fields and many farmers are University graduates. Farm mechanization usually includes a number of equipment such as plows, scrapers, manure-spreaders, harrows, furrowers, combines and milling-machines. The major production and environmental challenges related to intensive rice production systems in Europe are presented.
Analysis of oil palm plantation performance in environmental management based on ISPO principles and criteria
Authors: Nasution A R Habibi , Hariyadi  , Kartodiharjo H 
Published: March 2021

Abstract
Excellence, potential, and good prospects make palm oil plantations grow rapidly. Another underlying consideration is the important and strategic role as a activator nor accelerator in development and economy. Environmental and social issues become challenging in development’s sector, especially in the development of sustainable oil palm plantations. Since the implementations of the certification system for sustainable palm oil plantation’s in 2011 and was further clarified in Regulation of the Minister of Agriculture No. 11 of 2015 about Indonesian Sustainable Palm Oil Certification System (ISPO), the Indonesian Government requires companies to produce palm oil sustainably. This research aims to analysis on the performance of oil palm plantations in environmental management based on ISPO principles and criteria. Research on several palm oil plantations of South Sumetera Province located in Musi Banyuasin Regency. Methods were used by collecting primary data through interviews and secondary data was obtained from data reviews such as company literature. The results of the analysis showed that the effectiveness of policy implementation through the fulfillment of environmental policy components can be fulfilled by most of companies. Meanwhile, in some cases, such as online reporting of land fires has not been fulfilled yet.
Carrying capacity analysis of integration system by-products in Polewali Mandar District, West Sulawesi Province
Authors: Setyawan A , Hariyadi  , Nahrowi  
Published: March 2021

Abstract
The focus of farmer management, especially the field of food crops in Polewali Mandar District of West Sulawesi Province, is only on the main products of agricultural commodities. On the other hand agricultural side products that still have added value are rarely noticed. This study was conducted to assess the level of supporting corn rice straw as well as cattle waste of beef cattle in Polewali Mandar District of West Sulawesi Province. The parameters calculated are Feed Concentration Index of the Corn Rice Straw, the carrying capacity of Crude Protein, the carrying capacity of Total Digestible Nutrient and the supporting capacity of beef cattle manure. The result showed during the period 2016-2019, as many as 7 out of 16 sub-districts had a high category Feed Concentration Index, crude protein support capacity against the beef cattle population of 77.48% - 97.84%, total Digestible Nutrient support for the beef cattle population of 121.24% - 148.67%. Calculation of manure support capacity against planting corn rice crops amounted to 54,81% - 62,1%. This study presents availability of agricultural by-products that have added value for the basis of agricultural policy-making in Polewali Mandar District.
Weed growth and sweet corn yield as affected by planting patterns and mulch types in organic farming practice
Authors: Nurjanah U , Setyowati N , Prasetyo P , Fahrurrozi F , Muktamar Z 
Published: March 2021

Abstract
Weed is the main problem in organic agriculture. Intercropping is an agricultural practice to control weeds. The study intended to compare weed growth and sweet corn yield in intercropping and monoculture patterns with different mulch types and to determine the best planting pattern and mulch type for crop growth and yield. A field experiment was conducted at the CAPS Research Station situated in Air Duku Village, Rejang Lebong, Bengkulu, at 1054 m above sea level. The experiment used Completely Randomized Block Design (RCBD) with two factors. There were no interactions between planting patterns and organic mulch types on weed growth and sweet corn yield. Intercropping sweet corn-kidney bean and sweet corn-string bean suppressed the growth of weeds. Also, intercropping of sweet corn-kidney bean or sweet corn-string bean had similar sweet corn yield with monoculture. Rice straw and rice husk mulch suppressed weeds growth better than coffee husk mulch.
Analysis of vegetation biodiversity and urban park connectivity as landscape services provider in Bogor city
Authors: Adelia D , Kaswanto  
Published: March 2021

Abstract
The rapid urban development has its own positive and negative impacts, especially on the landscape. One of the attempts to overcome those negative impacts of urban development is to create Green Open Space. The proportion of green open space in an urban area should be at least 30% of the total area. One form of green open space is an urban park, which is also become a green belt infrastructure. Therefore, the object of this research is six urban parks in Bogor City; there are Sempur Park, Kaulinan Park, Peranginan Park, Kresna Field Park, Corat-Coret Park, and Katulampa Fasosfasum Park located in the Ciliwung Watershed. The methods used in this study are the Shannon-Wiener Index to analyze the biodiversity of urban parks in Bogor City, which has the results of a Shannon-Wiener index from low to high. While based on the results of the Sorensen Index, connectivity between Urban parks in Bogor City is classified from low to moderate. Furthermore, the correlation between vegetation biodiversity and connectivity was tested through the Spearman Rank Correlation Test, a strong and direct correlation. The outputs from this study are three recommendations for urban park management to improve vegetation biodiversity and connectivity in Bogor City.
Tree corridor planning for the ecological sustainability of agricultural area in Sekaran Village, Bojonegoro Regency
Authors: Syartinilia  , Pramukanto Q , Makalew A D N , Suyitno R A , Shafira M , Kristiani Z , Fahmi I 
Published: March 2021

Abstract
Drought is the main problem faced in agricultural activities in Sekaran Village, Bojonegoro Regency. The primary agricultural commodities in Sekaran Village are corn and cattle breeding. Tree corridor planning is one of the proposed solutions to overcome this problem. This study aimed to develop a tree corridor plan for the agricultural area’s ecological sustainability in Sekaran Village by improving the quality and quantity of green open space. Spatial data obtained from the field survey using drone technology. Environmental variables used for corridor plan analysis were land cover, slope, road, and orthomosaic imageries. This study produced a tree corridor planning along 156.57 km located in agriculture land, roadsides, and valley/basin. The proposed tree species has ecological functions such as water absorption and improving microclimate, production functions (food and cattle feed), and aesthetic functions. Tree corridors will use a hedgerow model to form an integrated corridor system in Sekaran Village. Tree species recommended such as Swietenia mahogani, Delonix regia, Spathodea campanulata, Gliricidia sepium, Centrosema pubescens, Leucaena leucocephala, Mangifera indica, Artocarpus heterophyllus, Psidium guajava.
Sorghum germination inhibition using its water extract cultivated in swampland with different irrigation patterns
Authors: Susilo E , Setyowati N , Nurjanah U , Riwandi  , Muktamar Z 
Published: March 2021

Abstract
One of the allelopathic uses is the application of sorghum water extract for weed control. Drought-shaped abiotic stress plays an important role in the plant contribution of allelopathy. This study aimed to examine the inhibition of sorghum water extracts grown in swampland with different irrigation patterns. The study employed a randomized complete block designed with two factors. The first factor was irrigation patterns, i.e., four weeks of dry and saturated water, alternating weekly saturated and dry water for four weeks, and alternating weekly dry and saturated water for four weeks. The second factor was water extract concentration, consisting of 0%, 2.5%, 5%, 7.5 % and 10%. Dry Ultisol was assigned as a control treatment. The bioassay procedure was set up with 25 sorghum seeds per petri dish. Each petri dish was solved and incubated for four days with a 10 ml sorghum water extract from each of the above treatments. The results showed the highest germination inhibition levels were in the interaction between the dry patterns (dry swampland and dry Ultisol) at 7.5% of water extraction. Sorghum extract, grown in dry swampland, is a potential for good bioherbicide production.
The mechanical and chemical scarification to break dormancy and increasing vigor of Sunan candlenut seed
Authors: Utami E P , Santika E , Hidayat C 
Published: March 2021

Abstract
The objective of this research is to identify a treatment that can break the dormancy and increase the vigor of candlenut seed (Reutealis trisperma (Blanco) Airy Shaw) seedling. Treatments were mechanical scarification and chemical scarification. Mechanical scarification was control (S0), cracking (S1), filing (S2), and sanding (S3). Chemical scarification was control (T0), immersion in 10% HCl (T1), 10% H2SO4 (T2), and 10% KNO3 (T3) for 20 minutes. Soon after treatment, the persistence of seed dormancy (weeks), speed growing (% etmal−1), and height of the seedling were observed. Cracking the seed was showed the highest growth rate among all treatments (2,44 % etmal−1). Mechanicals and chemicals scarification were effective to break seed dormancy. Persistence of seed dormancy mechanical and chemical scarification various between 3-5 weeks, meanwhile the control was 7 weeks. Seedlings with the treatment combination of cracking and soaking with 10% KNO3 were the highest in 1, 3, and 5 weeks after planting.
Agronomic performance of rice varieties in modified ratoon salibu
Authors: Zarwazi L M , Junaedi A , Sopandie D , Sugiyanta  , Purwono  , Agustiani N , Sujinah  , Nildalina  
Published: March 2021

Abstract
Modified ratoon salibu is a technique of increasing crop index and production of rice. This research was aimed to knew to obtain information on some varieties appropriate to modified ratoon salibu. The experiment was conducted from April 2017 to March 2018 at Farmers Field of Tanah Datar District of West Sumatra. The investigation was arranged in a randomized complete block design (RCBD) with 14 treatments and three replications. The treatment consists of 14 varieties, i.e., Hipa 8, Hipa 18, Hipa 19, Hipa Jatim 2, Inpari 6, Inpari 10, Inpari 19, Inpari 43, Ketan Ciasem, Ketan Grendel, Kebo, Cisokan, Batang Piaman, and Ciherang. The result showed that the hybrid rice variety more tiller than the inbred and local variety. Batang Piaman variety was the tallest variety on modified ratoon salibu. Some types were appropriate on modified ratoon salibu until salibu two and yield same with Batang Piaman, i.e., Inpari 6, Inpari 10, Inpari 19, Inpari 43, Ketan Ciasem, and Cisokan. Percentage of the ratooning ability of rice variety 12,71% to 80,20 %.