scholarly journals Monitoring the number of trips on open-ground tomatoes

2021 ◽  
Vol 32 ◽  
pp. 02014
Author(s):  
Natalya Tyutyuma ◽  
Anastasia Bondarenko
Keyword(s):  
High Yield ◽  
Scientific Article ◽  
Scientific Center ◽  
Tomato Plants ◽  
Open Ground ◽  
Phytotoxic Effect ◽  
Academy Of Sciences ◽  
Rotation Crop ◽  
First Time ◽  
Selection Of

The agroclimatic resources of the Astrakhan region are quite large and represent huge opportunities in the production of heat-loving crops such as vegetables and melons. The region has accumulated a great scientific and production experience in the cultivation of tomatoes as the main vegetable crop rotation crop. To date, the first task for farmers of the region is to develop new modern agrotechnological techniques to eliminate the spread of thrips on open-ground tomato plants. The object of research was a hybrid of tomato of the domestic selection of the agricultural company Sedek Azhur F1. Materials and methods. For the first time, for the conditions of light chestnut soils on the land use territory of FSBNU “Caspian Agrarian Scientific Federal Scientific Center of the Russian Academy of Sciences” during 20182020. the influence of various insecticides in the fight against tripasmi was studied. As a result of the analysis, the presented scientific article presents the main results for the study of new modern insecticides in the fight against trypses on open-ground tomato Azhur F1. According to the results of three years of study, the optimal option with the use of the drug Confidor Extra was revealed, which contributes to a significant decrease in the number of phytophages. The use of these preparations had no phytotoxic effect on open-ground tomato plants. In the version using the insecticide Confidor Extra, there was more purely commercial fruits and a significant increase in the crop relative to control without treatments, as well as a variant where the Fufanon-Nova preparation was used. The increase relative to control in the high-yield version was + 40.8 t/ha or 43.5%.

Рукопись Д. С. Бембеева-Сальмина «Ойратские триады»

2020 ◽  
Vol 15 (3) ◽  
pp. 107-121
Author(s):  
Larisa Badmaevna Mandzhikova ◽  
Keyword(s):  
Material Culture ◽  
Everyday Life ◽  
Full Text ◽  
Scientific Center ◽  
Biographical Information ◽  
The World ◽  
Kinship Relations ◽  
Academy Of Sciences ◽  
First Time ◽  
Political Figure

Introduction.Dorje Soktunovich Bembeyev-Salmin is one of the famous representatives of the old Kalmyk intelligentsia, a linguist, orientalist, public and political figure. His scientific works and biographical information are preserved in the private archive of D. S. Bembeev-Salmin in the Scientific Archive of the Kalmyk Scientific Center of the Russian Academy of Sciences (F. 10). This archive contains 12 items of storage for 1959. Among them are translations of works by Russian writers to the Kalmyk language, manuscripts of the text «The Orthography of the Oirat-Mongolian writing», Kalmyk folk proverbs and sayings, triads, pentastichesrecorded by D. S. Bembeev-Salmin. Of particular interest are the triads ― «orchlngingurvnts»(‘that there are three in the world’), recorded by him in 1931, they are one of the varieties of Kalmyk riddles. The themes of the riddles of the triads are diverse: everyday life, house hold activities, material culture, nature, family and kinship relations, ethics. D. S. Bembeyev-Salmin translated some of the three verses himself. This determines the value of the materials collected by him and their introduction into scientific circulation. The full text of the manuscript materials is published for the first time in this article.

scholarly journals Cucumber breeding lines are a prospective material for creating new varieties for open ground in southern Russia

2021 ◽  
pp. 65-67
Author(s):  
O. P. Kigashpaeva ◽  
A. V. Gulin ◽  
L. P. Lavrova
Keyword(s):  
Import Substitution ◽  
Economic Traits ◽  
Scientific Center ◽  
Breeding Lines ◽  
Fruit Setting ◽  
Open Ground ◽  
New Varieties ◽  
Southern Russia ◽  
Predominantly Female ◽  
Academy Of Sciences

The varieties and hybrids of cucumbers cultivated in the Astrakhan region are insufficiently productive and are largely affected by a number of diseases. The introduction of innovative developments into production, in particular, new varieties and hybrids of domestic selection, largely solves the problem of import substitution and food security. The goal is to use promising breeding lines and their offspring as genetic sources and donors when creating new varieties and hybrids for open field conditions in southern Russia.Methods. Experiments were carried out in the fields of Precaspian agrarian federal scientific center of the Russian academy of sciences, according to the methods used in the Astrakhan region. Within three years, 47 collection samples were tested.Results. The article presents the results of studying the 12 most promising ones, distinguished by a complex of valuable economic traits, in particular by yield, amicability of fruit setting, which are of interest for further breeding work. According to the results of the data obtained, we can say that the best were the lines: 13-88RZ, 13-101RZ, Gherkins, KRASTAVAC, Courage, Zina, they can be used to create new varieties and hybrids of cucumber as donors of a predominantly female type of flowering, harmonious yield.

scholarly journals A new stage in the study of the medieval Solkhat and its districts (Review of the Book: A Code of Monuments of History, Architecture and Culture of the Crimean Tatars. Volume IV. Old Crimea)

2021 ◽  
pp. 261-268
Author(s):  
Vadim V. Maiko ◽  
Keyword(s):  
Cultural Heritage ◽  
The State ◽  
Complete List ◽  
Scientific Center ◽  
The Crimea ◽  
History Of ◽  
The Republic ◽  
Cultural Heritage Objects ◽  
Academy Of Sciences ◽  
First Time

The review considered the next IV Volume of a multi-volume publication: A Code of monuments of history, architecture and culture of the Crimean Tatars, prepared jointly by the Crimean Scientific Center of Sh. Marjani Institute of history of Academy of Sciences of the Republic of Tatarstan, the Department of History of Fevzi Yakubov “Crimean Engineering and Pedagogical University” and the State Hermitage with the involvement of specialists studying the history and archeology of Solkhat. This volume is entirely devoted to the monuments of history, archeology and architecture of Solkhat – Stary Krym and its district of the second half of the XIII-XIX centuries. For the first time in Russian historiography, the most complete list of cultural heritage objects has been collected. All archaeological works were carried out in Solkhat and its district from the second half of the 1920s and up to today. Previously unpublished photographs and drawings are given in the volume. This publication is rightly considered a new stage in the study of this unique historical place of the Crimea.

scholarly journals From the history of the formation of the Far Eastern Scientific Center of the USSR Academy of Sciences

2020 ◽  
Author(s):  
В.В. БОГАТОВ
Keyword(s):  
Ussr Academy ◽  
Scientific Center ◽  
History Of ◽  
Academy Of Sciences ◽  
Far Eastern ◽  
First Time ◽  
Time Information

Анализируются этапы формирования Дальневосточного научного центра АН СССР. Впервые приводятся сведения о проектировании комплекса зданий Дальневосточного филиала АН СССР во Владивостоке. The stages of formation of the Far Eastern Scientific Center of the USSR Academy of Sciences are analyzed. For the first time, information is provided on the design of a complex of buildings for the Far Eastern Branch of the USSR Academy of Sciences in Vladivostok.

scholarly journals СЕЛЕКЦИЯ МЯСНЫХ КУР ПОРОДЫ ПЛИМУТРОК НА ПОВЫШЕНИЕ ВОСПРОИЗВОДИТЕЛЬНЫХ КАЧЕСТВ Егорова А.В., Ефимов Д.Н., Емануйлова Ж.В., Комаров А.А.

2021 ◽  
Vol 70 (3) ◽  
Keyword(s):  
Egg Production ◽  
Broiler Chicken ◽  
Reproductive Efficiency ◽  
Scientific Center ◽  
Egg Weight ◽  
Maternal Line ◽  
Line Selection ◽  
Academy Of Sciences ◽  
Selection Of ◽  
Russian Research

КЛЮЧЕВЫЕ СЛОВА: МЯСНЫЕ КУРЫ ПОРОДЫ ПЛИМУТРОК, ЛИНИЯ, СЕЛЕКЦИЯ, ЯЙЦЕНОСКОСТЬ, ВЫВОД ЦЫПЛЯТ, ВЫХОД ИНКУБАЦИОННЫХ ЯИЦ, ДЕФЕКТЫ ЯИЦ АННОТАЦИЯ: Работа проведена в производственных условиях СГЦ «Смена». В опытах использовали птицу породы плимутрок: отцовскую линию в материнской родительской форме (СМ7), материнскую линию в материнской родительской форме (СМ9), материнскую родительскую форму (СМ79). Установлено, что по мясным курам новых исходных линий СМ7 и СМ9 в 2020 г. в процессе целенаправленной селекционной работы отмечено увеличение по сравнению с 2015 г. выхода инкубационных яиц на 2,0 и 2,1% соответственно; вывода цыплят - на 1,1 и 1,3%; яйценоскости на начальную несушку за 60 недель жизни - на 2,2 и 3,1%; массы яиц в 30 недель жизни - на 0,7 и 1,2%; выхода цыплят от одной несушки - на 5,9 и 7,8%. Куры двухлинейной материнской родительской формы СМ79 имеют преимущество над исходными линиями СМ7 и СМ9 по яйценоскости за 60 недель жизни на 14,3 и 3,7% соответственно, по массе яиц - на 0,17 и 0,96%, по выходу инкубационных яиц - на 0,5 и 0,3%, по выводу цыплят - на 8,2 и 4,6%, по выходу цыплят от одной несушки - на 27,1 и 9,7%. Это превосходство обусловлено эффектом гетерозиса по воспроизводительным признакам. Меньшее количество яиц с дефектами у кур в 2020 г. по сравнению с 2015 обусловило различие по выходу инкубационных яиц. От мясных кур за 60 недель жизни в 2020 г. получено больше инкубационных яиц, чем в 2015 г., на 17145 шт. (по линии СМ7 - на 4602 шт., СМ9 - на 5254 шт., СМ79 - на 7289 шт.), и, соответственно, меньше яиц, реализованных как пищевые. THE IMPROVEMENT OF REPRODUCTIVE EFFICIENCY IN THE SELECTED PLYMOUTH ROCK LINES EGOROVA A.V.1, EFIMOV D.N.1, EMANUYLOVA ZH.V.1, KOMAROV A.A.1 1 Federal Scientific Center “All-Russian Research and Technological Institute of Poultry” of Russian Academy of Sciences The reproductive efficiency in three Plymouth Rock lines selected by the Center for Genetics & Selection “Smena” (paternal and maternal preparental lines SM7 and SM9 and their hybrid, maternal parental broiler line SM79) in 2020 in compare to 2015 was assessed. It was found that targeted selection of the preparental lines SM7 and SM9 between 2015 and 2020 increased egg production during 60 weeks of the productive season per initial hen by 2.2 and 3.1%, egg weight at 30 weeks of age by 0.7 and 1.2%, the percentage of eggs suitable for incubation by 2.0 and 2.1%, hatch of chicks by 1.1 and 1.3%, number of healthy chicks per parental hen by 5.9 and 7.8% respective to lines SM7 and SM9. Hybrid maternal line SM79 in 2020 featured higher reproductive efficiency in compare to its parental lines SM7 and SM9 due to the effect of heterosis: egg production during 60 weeks higher by 14.3 and 3.7%, egg weight at 30 weeks of age by 0.17 and 0.96%, percentage of eggs suitable for incubation by 0.5 and 0.3%, hatch of chicks by 8.2 and 4.6%, number of healthy chicks per parental hen by 27.1 and 9.7% respective to lines SM7 and SM9. The higher percentage of eggs suitable for incubation in 2020 in compare to 2015 is related to lower percentages of eggs with genetically conditioned defects (lightweight, two-yolk, belted, crackled, etc.) due to the targeted selection. The output of eggs suitable for incubation from equal-sized flocks in 2020 was higher in compare to 2015 by 17,145 eggs in total (by 4,602 in SM7, 5,254 in SM9, and 7,259 in SM79), and lesser amounts of non-suitable eggs were therefore sold as table eggs. Keywords: PLYMOUTH ROCK BROILER CHICKEN, LINE, SELECTION, EGG PRODUCTION, HATCH OF CHICKS, EGGS SUITABLE FOR INCUBATION, DEFECTS OF EGGS

scholarly journals Click beetles of the genus Melanotus Eschscholtz, 1829 (Coleoptera, Elateridae) in the collection of the Institute of Zoology of the Scientific Center of Zoology and Hydroecology of Armenia

2021 ◽  
Vol 15 (4) ◽  
pp. 145-151
Author(s):  
M. A. Marjanyan ◽  
A. A. Avetisyan
Keyword(s):  
First Record ◽  
Current Data ◽  
National Academy Of Sciences ◽  
Scientific Center ◽  
Click Beetles ◽  
The Caucasus ◽  
The Republic ◽  
Academy Of Sciences ◽  
First Time ◽  
Species Being

Aim. The study of the genus Melanotus from the collection of the Institute of Zoology of the Scientific Center of Zoology and Hydroecology of the National Academy of Sciences of the Republic of Armenia taking into account new taxonomic and chorological data.Material and Methods. Scientific material was identified after desktop processing and preparation of genitalia according to current data on the genus Melanotus.Results and Conclusion. We determined 21 species of the genus Melanotus in the collection from Europe, the Caucasus and Middle Asia, 12 species being recorded from the territory of Armenia. The collection of the genus Мelanotus in the Institute of Zoology includes species endemic to Armenia (M. gedeoni Mardjanyan, 2015, M. platiai Mardjanyan, 2015, M. khnzoriani Mardjanyan, 2015), to Tajikistan (M. fragilloides Dolin, 1988, M. vidualis Gurjeva, 1988) and to Iran (M. dichroides Platia & Gudenzi, 1999, M. richterae Mardjanyan, 2015). Three species, M. castanipes Paykull, 1800, M. fulvus Reitter, 1891 and M. sladkovi Dolin & Atamuradov, 1986 are recorded for the first time for Armenia. M. rustamovi Dolin & Atamuradov, 1987 is the first record for Tajikistan and M. persimilis Dolin & Latifi, 1988 for Turkmenistan.

scholarly journals The results of ecological testing of early and mid-season potato varieties in the Komi Republic

2021 ◽  
Vol 22 (3) ◽  
pp. 329-339
Author(s):  
A. G. Tulinov ◽  
A. Yu. Lobanov
Keyword(s):  
Late Blight ◽  
Surface Damage ◽  
Komi Republic ◽  
Climatic Conditions ◽  
High Yield ◽  
Agricultural Producers ◽  
Scientific Center ◽  
Potato Varieties ◽  
Early Maturing ◽  
Academy Of Sciences

Search and introduction of new potato varieties that can be recommended for cultivation in soil and climatic conditions of the Komi Republic are especially important against the background of the average yield in the region of 12.1 t/ha, that is 6.7 t/ha lower than the average in Russia. In 2019-2020 on the basis of the A. V. Zhuravsky Institute of Agrobiotechnology of the Federal Research Center of the Komi Scientific Center of the Ural Branch of the Russian Academy of Sciences, there were tested potato varieties of the early maturing group – Armada, Meteor, Gulliver, Taifun and Krepysh (standard) and the mid-season group – Varyag, Vympel, Krasa Meshchery, Kumach, Fritella, Vychegodskii and Zyryanets (standard). From the early maturing group, the varieties Armada and Gulliver have been selected as giving a consistently high yield, which exceeded the standard by 6.8-7.1 t/ha on average for two years. Among mid-season varieties no one reliably exceeded the standard variety Zyryanets in terms of yield productivity. The highest yield and marketability was noted for the Fritella variety – 30.5 t/ha and 97 %. All the varieties under study, except for Vychegodskii, showed an average resistance of the tops to late blight damage. Moderate early blight damage of the tops (up to 20 % of the leaf surface) was noted in three varieties – Meteor, Taifun and Vychegodski. The following varieties showed high resistance to common scab - Vympel (no damage), Zyryanets (few lesions) and Gulliver (up to 10 % of tuber surface damage). In all studied varieties the potato tubers were not affected by late blight during both years of research. For cultivation, the agricultural producers of the Komi Republic should use the varieties Armada (29.7 t/ha), Gulliver (28.1 t/ha), Vympel (29.2 t/ha), Fritella (30.5 t/ha), which have good resistance to phytopathogens and high quality of tubers.

Научное обоснование создания селекционно-семеноводческого центра древесных и сельскохозяйственных растений

2020 ◽  
pp. 3-17
Author(s):  
A.I. Belyaev ◽  
B.V. Repnikov ◽  
A.V. Semenyutina ◽  
A.V. Solonkin ◽  
A.Sh. Khuzhakhmetova
Keyword(s):  
Russian Federation ◽  
Tree Species ◽  
Scientific Center ◽  
Russian Academy Of Sciences ◽  
Nursery Production ◽  
The Russian Federation ◽  
The Creation ◽  
Academy Of Sciences ◽  
Trees And Shrubs ◽  
Selection Of

The Federal Scientific Center for Agroecology of the Russian Academy of Sciences (formerly the all-Russian research Institute of agroforestry) is one of the only scientific institutions in Russia that solves the problems of protecting soils from degradation and desertification and increasing their fertility by using the protective properties of adapted wood, shrub and herbaceous vegetation. Continuous use in research and obtaining ecological, economic and social benefits from the bioresources of economically valuable trees and shrubs of their own selection are key elements for developing a methodology for the innovative development of modern green technologies, including nursery production in the arid region of Russia. The Federal Scientific Center of Agroecology of the Russian Academy of Sciences has considerable experience in creating and implementing the results of scientific work aimed at achieving high and sustainable indicators in the forest and agro-industrial complex. It is shown that the creation of selection and seed centre has sufficient space dendrological collections, mother cells, of commercially valuable ornamental plantations, agroforestry, fruit, pasture trees, shrubs (Samara, Volgograd, Oryol, Astrakhan regions, Altai, Stavropol Krai), nursery and greenhouse complex (Nizhnevolzhsky station on selection of tree species), and land – more than 60 thousand hectares of land. Over the years, many years of ecological and experimental monitoring have been conducted on the introduction, selection, protection of plants from pests and diseases, varietal, seed and nursery production of economically important tree species in arid conditions. It is established that the unique capabilities of adaptive selection of a range of commercially valuable trees and shrubs (660 species, forms, hybrids and varieties) to meet changing conditions and requirements provide a collection funds of woody plants FSC of Agroecology Russian Academy of Sciences and its branches (West-Siberian agroforestry station, Povolzhsky agroforestry station, Nizhnevolzhsky station on selection of tree species, etc.). The region has established introduction resources, seed plantations of tree and shrub biodiversity (340 ha of forest-seed plantations, more than 150 ha of forest plantations). Complex resistant varieties were obtained, a valuable breeding gene pool was identified, and production nurseries were organized in the experimental network of the Federal Scientific Center of Agroecology of the Russian Academy of Sciences (Nizhnevolzhskaya station for selection of tree species) for rationalization of nature management, fight against drought and desertification in low-forest areas. A strategy for breeding stone crops has been developed to accelerate the creation of a new source material and varieties for cultivation using modern intensive technologies that ensure stable productivity with high fruit quality in the Lower Volga region. An extensive collection of field crops, theoretical base and practical developments has been accumulated. Including annually replenished collections of more than 2500 hybrids and varietals of winter and spring wheat, spring barley, seed millet, sorghum crops, trees, shrubs, perennial fruit crops, as well as a database of traits for more than 5000 samples of complex resistant to stress factors. The mission of the breeding and seed center is to accelerate the creation and introduction into mass production of adapted innovative varieties and hybrids of agricultural and forest crops that meet the most modern requirements of agroecological regulations for the production and processing of agricultural products. This will ensure the development of both the internal food security of the region and the Russian Federation as a whole, and increase the export potential. The key regions of the Russian Federation for the development of the Program are the following: Volgograd, Saratov, Orenburg, Samara, Oryol, Kursk, Astrakhan regions, Altai, Stavropol territory, Republic Kalmykia. Федеральный научный центр агроэкологии Российской академии наук имеет значительный опыт создания и внедрения результатов научной работы, направленной на достижение высоких и устойчивых показателей в лесном и агропромышленном комплексе. Для создания селекционно-семеноводческого центра имеются обширные дендрологические коллекции, маточники, ценные декоративные плантации деревьев и кустарников (Самарская, Волгоградская, Орловская, Астраханская области, Алтайский и Ставропольский край), питомники и тепличные комплексы (Нижневолжская станция по селекции древесных пород). В регионе созданы интродукционные ресурсы, семенные плантации, производственные питомники биоразнообразия деревьев и кустарников (340 га лесных посевных плантаций, архивы клонов, более 150 га лесных плантаций). Создана обширная коллекция полевых культур (2500 гибридов и сортов озимой и яровой пшеницы, ярового ячменя, семян проса, сорго, технических культур, деревьев, кустарников, многолетних плодовых культур), теоретическая база и практические разработки. Миссия селекционно-семенного центра - ускорить создание и внедрение в серийное производство адаптированных инновационных сортов и гибридов сельскохозяйственных и лесных культур, отвечающих самым современным требованиям агроэкологических нормативов для производства и переработки сельскохозяйственной продукции.

K. V. KLEMESHOVA, T. YU. GABUEVA PECULIARITIES OF FORMATION OF LARGE-FLOWERED CHRYSANTHEMES FOR OBTAINING CUT IN A WET SUBTROPICAL CLIMATE

2021 ◽  
Vol 66 (1) ◽  
pp. 57-65
Author(s):  
K. V. Klemeshova ◽  
T. Yu. Gabueva
Keyword(s):  
Subtropical Climate ◽  
Diagnostic Features ◽  
Scientific Center ◽  
Agricultural Engineering ◽  
Federal Research ◽  
Open Ground ◽  
Academy Of Sciences ◽  
The Relationship ◽  
Variety Testing ◽  
Domestic Breeding

Chrysanthemum is one of the leading crops of commercial floriculture. Within garden groups and classes, chrysanthemums are divided according to cultivation methods, shape and size of the inflorescences. For varieties grown on a cut, a group of large-flowered (with a diameter of inflorescences of 12-25 cm), small-flowered (4-10 cm) chrysanthemums and santini (from 2 to 4 cm) is distinguished. Having a limited assortment of chrysanthemum garden, in a humid subtropical climate, it is possible to form a largeflowered (single-headed, disbud) and small-flowered (spray) cut. The purpose of the research was to study the peculiarities of formation of large-flowered chrysanthemums (Chrysanthemum×hortorum Bailey) to obtain cut in the humid subtropics of Russia. The objects of research were large-flowered and small-flowered varieties of chrysanthemums of foreign and domestic breeding. The studies were carried out in the open ground of the Department of Agricultural Engineering and Nursery of the Federal Research Center the Subtropical Scientific Center of the Russian Academy of Sciences. Scientific research was carried out according to the methodology of State variety testing of agricultural crops and the methodology of testing for distinctness, uniformity and stability of chrysanthemum (perennial) Chrysanthemum spec. ‘Sevan’, ‘Baltica White’, ‘Granada’ and ‘Zembla Brasil’ are large-flowered varieties, which have bush peduncles of good commercial quality with large inflorescences of saturated shades. In turn, from small-flowered garden forms ‘Zembla White’, ‘Annecy White’ and ‘Westland Regal’ with regular pinching, you can grow a large-flowered cut of chrysanthemums. It was revealed the relationship between biometric characteristics in order to determine additional diagnostic features of the possibility of the formation of large-flowered inflorescences. So, the diameter of the inflorescence is the most significant parameter for research which has significant positive relationships with the diameter of the peduncle and the length of the extreme ray flower. It will allow determining the possibility of growing the variety in one form or another, depending on the needs of production, at the initial stages of introduction and variety study.

ПРЕРЫВИСТОЕ ОСВЕЩЕНИЕ ПОВЫШАЕТ ЭФФЕКТИВНОСТЬ ИСКУССТВЕННОГО ОСЕМЕНЕНИЯ КУР В КЛЕТКАХ

2019 ◽  
Keyword(s):  
Reproductive Performance ◽  
Artificial Insemination ◽  
Egg Production ◽  
Laying Hens ◽  
Electric Energy ◽  
Productive Performance ◽  
Feed Conversion ◽  
Scientific Center ◽  
Academy Of Sciences ◽  
Egg Fertility

Intermittent Lighting Improves the Efficiency of Artificial Insemination in Cage Housed Laying Hens Kavtarashvili A.Sh., Kolokolnikova T.N. Federal Scientific Center “All-Russian Research and Technological Poultry Institute” of Russian Academy of Sciences Omsk Agrarian Scientific Center Summary: The effects of different lighting regimes on the oviposition schedule, productive performance, and reproductive efficiency in cage housed laying hens of layer parental flock (Hisex White-R) were studied; the reasonable regime of artificial insemination (AI) under intermittent lighting is proposed. It was found that intermittent lighting regime 1L:4D:4L:1D:4L:10D compared to the constant lighting significantly alters oviposition schedule: under this regime 82.3% of all daily eggs were laid until 9 am (vs. 66.6% in control). This regime and AI at 10 am improved the productive and reproductive performance compared to control (constant lighting 16L:8D and AI at 12 am): mortality by 1.9%, egg production per initial hen by 3.8%, egg weight by 1.1%, percentage of eggs suitable for incubation by 1.9%, egg fertility by 0.9%, hatchability by 2.3%, hatch of chicks by 2.9%, feed conversion ratio (kg of feed per 10 eggs) by 5.3%, the expenses of electric energy for lighting (per 1000 eggs suitable for incubation) by 54.5%. Key words: INTERMITTENT LIGHTING, CAGE HOUSED LAYERS, ARTIFICIAL INSEMINATION (AI), OVIPOSITION SCHEDULE, AI TIMING, PRODUCTIVE PERFORMANCE, REPRODUCTIVE PERFORMANCE

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