scholarly journals Heritability of production characteristics of regional populations of honey bees from Serbia

Genetika ◽  
2012 ◽  
Vol 44 (1) ◽  
pp. 47-54 ◽  
Author(s):  
Goran Jevtic ◽  
Bojan Andjelkovic ◽  
Zoran Lugic ◽  
Jasmina Radovic ◽  
Bora Dinic
Keyword(s):  
Honey Bees ◽  
Genetic Factors ◽  
Climatic Conditions ◽  
External Factors ◽  
Production Traits ◽  
Two Generations ◽  
Queen Bees ◽  
The Republic ◽  
Production Characteristics ◽  
Honey Yield

In this experiment, colonies of six regional populations from the territory of the Republic of Serbia were included, and two generations (maternal colonies and their offspring) were observed. In two inspections (fall and spring), production traits and temperament were observed. Daughter queen bees mated in uncontrolled conditions (free-mating) in order to determine heritability of production traits in terms of practical beekeeping. The heritability coefficients (h2) for production traits calculated. It was found that the honey yield was mostly determined by genetic, but environmental conditions also had significant influence. Heritability for honey yield (h2) ranged from 72.72% (Rasina population) to 81.04% (Banat population). Colony strength was very dependent on external factors, but also from the very population. When it comes to food supply (honey and pollen), in the inspections, large differences in the heritability coefficient were determined, which is explained by the interaction of genetic factors (the foraging instinct) and environmental factors (honey flora and climatic conditions during foraging) and the influence of beekeepers (feeding, etc.).

Formation of honey bees modern look and their reproduction in the republic of Dagestan

10.12737/6540 ◽  
2014 ◽  
Vol 9 (3) ◽  
pp. 117-119
Author(s):  
Гасанов ◽  
Alibulat Gasanov ◽  
Абакарова ◽  
Muslimat Abakarova
Keyword(s):  
Honey Bees ◽  
Wing Length ◽  
Climatic Conditions ◽  
High Mountains ◽  
Mountainous Areas ◽  
The Third ◽  
Different Populations ◽  
Natural Breeding ◽  
The Republic ◽  
Natural Dispersal

Grey mountain Caucasian bees are of great interest for the selection, as a valuable gene pool of different populations of this race is supported by high mountains and inaccessible gorges of Dagestan, while serving as an isolated mountainous natural breeding areas. The studies were conducted in three different climatic conditions of the republic: the plains, foothills and mountainous areas. In the area of natural dispersal of gray mountain Caucasian bees in Dagestan released several local populations and different backgrounds. Characteristics of the main morphological features of honey bees are the length of proboscis, wing and width of the third tergite and others. These features bees vary, depending on the habitat population. Numerous studies of Dagestan honeybees showed, that the longest proboscis inherent in bees of mountain zone (6.85 ± 0.03 mm). The plain bees have a smaller proboscis (up to 6.71 ± 0.01 mm), and in the foothills bees the proboscis occupies an intermediate position (from 6.69 ± 0.01 to 6.83 ± 0.01 mm). Two other peculiarities (wing length and the third tergite) are subject to variation, depending on the altitude above sea level.

scholarly journals Performance of wool type angora rabbits under temperate conditions of Kashmir (J&K), INDIA

2017 ◽  
Vol 9 (2) ◽  
pp. 1022-1025
Author(s):  
Nafis I. Assad ◽  
N. N. Khan ◽  
Safeer Alam ◽  
Dibyendu Chakraborty
Keyword(s):  
Genetic Factors ◽  
Fiber Diameter ◽  
Body Weight Gain ◽  
Climatic Conditions ◽  
Production Traits ◽  
Quality Performance ◽  
Adult Weight ◽  
Wool Yield ◽  
Angora Rabbit ◽  
Staple Length

An attempt has been made to determine the production and quality performance of wool type Angora rabbits and screen out the best suitable breed under temperate conditions of Kashmir. A total of 202 records of French Angora and German Angora rabbit breeds maintained for 3 years (2009-2011) were evaluated to estimate the performance of quality and production traits in relation to genetic and non-genetic factors. For French Angora rabbits, the overall body weight gain (adult weight), annual wool yield (AWY), staple length (SL), medullation percentage (MP) and fiber diameter (FD) were found to be 2.506 ± 0.0432 kg, 303.575 ± 0.316 gms, 5.161 ± 0.0183 cms, 2.228 ± 0.0217 % and 12.289 ± 0.0178 µ, respectively. In case of German Angora rabbits, the values of 2.506 ± 0.033 kg, 605.96 ± 0.474 gms, 6.219 ± 0.0279 cms, 2.513 ± 0.0348 % and 12.347 ± 0.0265 µwere observed for the respective traits. The breed was found to reveal significant effect (P<0.01) on birth weight, weaning weight, annual weight, annual wool yield, staple length and medullation percentage and non-significant effect on fiber diameter. The sex was found to exhibit non-significant effect on all the traits under study. Based on present study, it can be concluded that German Angora breed of rabbit is most suitable for angora wool production and quality under temperate climatic conditions of Kashmir region.

scholarly journals Specia alogenă invazivă Cydalima Perspectalis şi măsurile de reglare a densității populaționale în Republica Moldova

2019 ◽  
Author(s):  
Asea Timus ◽  
Keyword(s):  
Invasive Species ◽  
Climatic Conditions ◽  
Republic Of Moldova ◽  
Two Generations ◽  
The Republic

In the paper presents the allogeneic invasive species Cydalima perspectalis, first registered in the Republic of Moldova in 2017 in a park in the Chisinau capital. In 2018, investigations have been held to confirm its evolution in line with the climatic conditions in the area. According to species development in the second half of 2017 and the first half of 2018, it was found that the species is developing as in other countries in Europe: two generations and with the same aggressiveness. The paper describes the recommended fighting methods in countries where the species has developed in Europe, which are also valid for the republic.

scholarly journals NEW WAYS OF GETTING INFERTILE AND FERTILE QUEEN BEES HONEY BEES

2020 ◽  
Author(s):  
M.K. Simankov ◽  
Keyword(s):  
Honey Bees ◽  
Climatic Conditions ◽  
High Quality ◽  
New Methods ◽  
Queen Bees

The article is devoted to the processes of reproduction of infertile and fertile Queen bees. Some ethological features of Central Russian bees, as well as the difficult climatic conditions in which they are bred, lead to a decrease in the profitability of the process of obtaining Queens of this breed. The search and implementation of new methods of reproduction of Queens in the practice of beekeeping will allow you to get a greater number of high-quality Central Russian Queens.

scholarly journals Breeding indicators of Carniolan (Apis mellifera carnica pollm) and Carpathy (Apis mellifera carpatica) honey bees

2021 ◽  
Vol 244 ◽  
pp. 02008
Author(s):  
Boymakhmat Kakhramanov ◽  
Solikh Isamukhamedov ◽  
Farida Kuldasheva ◽  
Saydulla Doniyorov ◽  
Nilufar Rakhimjanova
Keyword(s):  
Apis Mellifera ◽  
Honey Bees ◽  
Economic Benefits ◽  
Climatic Conditions ◽  
Apis Mellifera Carnica ◽  
Queen Bees ◽  
First Time

In our research, the adaptation of imported carniolan (Apis mellifera carnica Pollm) and Carpathian (Apis mellifera carpatica) honey bees to the natural climatic conditions of Uzbekistan, the main indicators of queen bees in experimental groups, the results of two-year assessment and economic benefits were studied for the first time in Uzbekistan.

scholarly journals Content of valuable substances in barley grain grown under contrast climate conditions

2020 ◽  
Vol 50 (1) ◽  
pp. 23-31
Author(s):  
A. V. Sumina ◽  
V. I. Polonskiy
Keyword(s):  
Protein Content ◽  
Abiotic Factors ◽  
Steppe Zone ◽  
Barley Grain ◽  
Climatic Conditions ◽  
Forest Steppe ◽  
Climate Conditions ◽  
The Republic ◽  
Production Characteristics

The influence of abiotic factors and genotype on the quality of barley yield was studied. The research was conducted in various agroclimatic conditions at two state variety-testing sites in 2019. The first is located in the steppe zone of foothills on the ordinary and southern chernozems of the Republic of Khakassia, the second – in the forest-steppe soilclimate zone of the Republic of Tuva. During the experiment, a more contrasting difference in the daily temperature range in the conditions of Tuva was noted. The following varieties of spring chaffy barley of Siberian breeding were used as an object of the study: Uvatsky, Krasnoyarsky 91, Emelya (multi-rowed), Acha, Biom, Tanay, Buyan, Takmak, Abalak, Olenek (two-rowed). Production characteristics of the varieties (weight of 1000 grains, yield), the content of protein, sugars, fat and fiber in grain were determined by using standard methods. More stringent conditions for growing plants in the Republic of Tuva, compared to the Republic of Khakassia, caused a 20% decrease in the weight of 1000 grains and yield, a 47% decrease in protein content in grain, and an increase in the accumulation of fat and fiber in it (by 24 and 48%, respectively). When growing barley in Tuva, less significant intervarietal differences were noted in the production characteristics of the crop and in the content of valuable substances in the grain (except for protein). Varieties of barley with a high content of valuable substances in grain for cultivation in the Republic of Tuva in contrasting climatic conditions were determined. Variety Krasnoyarsky 91 was recommended (there was no decrease in the mass of 1000 grains and the level of productivity) and Biome (the smallest decrease in protein content, the largest increase in the content of fat and sugars in grain).

Effect of Breed and Some Non - Genetic Factors on Milk Production and Some Proportions of Its Chemical Components in Two Breeds of Local Sheep

2020 ◽  
Vol 10 (1) ◽  
pp. 227-231
Author(s):  
Rahman Hussein AL-Qasimi ◽  
Shatha Mohammed Abbas ◽  
Allawi L.D. AL-Khauzai
Keyword(s):  
Milk Production ◽  
Genetic Factors ◽  
Chemical Components ◽  
Lactation Period ◽  
Production Traits ◽  
Milk Production Traits ◽  
Fat Percentage ◽  
Awassi Sheep ◽  
Total Milk ◽  
Milk Components

The study was carried out on 19 ewes of local Awassi sheep and 12ewes local Arabi sheep in the Al-kafeel sheep station Karbala, to determine the effect of breed and some non-genetic factors such as (sex of the lamb, type of birth, age and weight of ewes at birth) on daily and total milk production and lactation period and some of milk components (fat, protein and lactose). The results showed that a significant effect (P <0.05) of the breed on milk production traits where Awassi sheep recorded the highest mean (0.91 kg , 101.63 kg , 104.86 day) compared to the Arabi sheep she was means (0.77 kg , 88.15 kg , 99.15 day) respectively. As well as in proportions of milk components with mean( 5.1 , 4.90 , 5.51) % respectively compared to the Arabi sheep (4.70 . 4.20 . 4.89) ewes with male lambs also exceeded superior ewes with female lambs in daily and total milk production and the lactation period the sex of the lamb did not affect the proportions of milk components the weight of the ewes had a significant effect (P <0.05) in milk production attributes with superior weight of ewes on lower ewes and did not affect the proportions of milk ingredients except for lactose. The type of birth and the age of the ewes did not have a significant effect in all the studied traits except for the superiority (P<0.05) of young ewes on age ewes in the fat percentage of milk.

Some reflections on social structure: Theoretical and practical aspects

2020 ◽  
Vol 18 (6) ◽  
pp. 1063-1078
Author(s):  
T.N. Skorobogatova ◽  
I.Yu. Marakhovskaya
Keyword(s):  
Service Industry ◽  
External Factors ◽  
Infrastructure Development ◽  
Social Infrastructure ◽  
Social Sphere ◽  
The Social ◽  
Study Results ◽  
The Republic ◽  
Internal And External Factors ◽  
The Impact

Subject. This article discusses the role of social infrastructure in the national economy and analyzes the relationship between the notions of Infrastructure, Service Industry and Non-Productive Sphere. Objectives. The article aims to outline a methodology for development of the social infrastructure of Russia's regions. Methods. For the study, we used the methods of statistical and comparative analyses. The Republic of Crimea and Rostov Oblast's social infrastructure development was considered as a case study. Results. The article finds that the level of social infrastructure is determined by a number of internal and external factors. By analyzing and assessing such factors, it is possible to develop promising areas for the social sphere advancement. Conclusions. Assessment and analysis of internal factors largely determined by the region's characteristics, as well as a comprehensive consideration of the impact of external factors will help ensure the competitiveness of the region's economy.

Peculiarities of the course of the postpartum period in domestic reindeer females, its morphophysiology and behavioral reactions in the North-East of Russia (Republic of Sakha)

2020 ◽  
pp. 99-105
Author(s):  
V. Fedorov ◽  
E. Sleptsov ◽  
K. Plemyashov
Keyword(s):  
Postpartum Period ◽  
Reproductive Function ◽  
Complex Problem ◽  
Climatic Conditions ◽  
Taiga Zone ◽  
Behavioral Reactions ◽  
North East ◽  
The North ◽  
The Republic ◽  
Mountain Taiga

A growth in the number of deer and an increase in their productivity are closely related to the solution of the complex problem of reproduction and rational use of deer females. Significant damage to reindeer husbandry is caused by the barrenness of northern domestic deer, the level of which has been quite high in recent years. So, in the Republic of Sakha, on 01.01.2020, the number of domesticated reindeer was 152,068, of which female deer and heifers — 71,818, offspring per 100 females — 59, business yield amounted to 52 fawns per 100 females. The causes of infertility are very diverse, as the natural and climatic conditions of the breeding zones have a significant influence on the reproductive function of reindeer. In Yakutia, the main population of northern domestic deer is bred in mountain taiga and tundra natural-climatic zones, so there are about 55 thousand deer in the mountain taiga zone and more than 65 thousand deer in the tundra zone. In this regard, the study of the peculiarities of the postpartum period course in domestic reindeer females, its morphophysiology, and behavioral reactions depending on the natural and climatic conditions of breeding is of great importance.

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