scholarly journals MELLIFEROUS CAPACITY OF BEE FAMILIES DEPENDING ON THE QUALITY OF QUEEN BEES, DERIVED WITH USING OF BIOLOGICALLY ACTIVE FEEDING

2018 ◽  
Vol 51 ◽  
pp. 296-302
Author(s):  
I. V. Vedmed ◽  
V. I. Sheremeta ◽  
V. G. Kaplunenko

An experiment was conducted in order to detect the influence of quality of queen bees of the Carpathian bee breed derived with using of biologically active substances on melliferous capacity of bee family, it was formed two experimental and control groups of twenty-five breed of bees. Bees breeds formed in June by the generally accepted rules were used. For the formation of group, analogical couples of bees breeds in strength, the number of sealed brood, honey and bee cerago were taken. The best queen bees’ sisters by development obtained from spring 2015 were sat to the experimental group. It means that they were genotype analogues and analogical couples by weight and body length. Queen bees derived from queen bees families which were fed with biologically active feeding Apistimulin BM and Nanostimulin were introduced to the first and second research groups. Queen bees derived from queen bees families which were fed only with sugar syrup were introduced into breeds of control group. Introducing queen bees in breeds was carried out by using conventional method of Titov’s cage. The experimental bee families were in the beehives of the similar construction in equal conditions of care and feeding. Bee families were taken to honey harvest of linden and sunflower during the season. After finishing of honey harvest from each plant, pumping honey was conducted. Determination of the amount received from each of honey bee families was performed by the method of conducting experiments in beekeeping. The influence of queen bees quality on melliferous capacity was judged by indicators of biometric processing of data from the output of trade honey during the season 2015, both separately for each breeds and overall. Honey harvest of linden from June 26 to July 5 was held under very unfavourable weather conditions for the allocation of nectar caused by high temperatures. Also unfavourable weather conditions for honey harvest were during sunflower blooming from July 19 to August 11. During flowering sunflowers, especially in the beginning, there were heavy rains, with the air temperature significantly reduced, and since the middle to the end of honey harvest it has become too high. All climatic factors influenced the quality and quantity of honey harvest. Analysis of the data showed that bees breeds formed on the basis of queen bees derived by using biologically active substances had more honey harvest than queen bees derived under usual conditions of feeding with sugar syrup. Thus, during honey harvest of linden, bees breeds of research groups have brought significantly more marketable honey by 16.4% and 51.5% than in the control. The best result was obtained in the first experimental group formed by the queen bees derived by using stimulating bioactive feeding Apistimulin BM. The results of this group were 51.5% and 23.2% higher than in the control group and second group and received an average 14.71 kg of honey of bee family. Bees breeds of the second experimental group increased honey harvest by 16.4% that is a good result for increasing the output of marketable honey in the apiary. The first experimental group had the lowest coefficient of variability, which indicates the similarity of queen bees and positive impact on their quality of honey harvest. The greatest individual features of queen bees were shown in families formed on the basis of queen bees derived by using stimulating bioactive feeding Nanostimulin. This group had the highest coefficient of variability. During honey harvest of sunflower, the number of honey exceeded the indicators of the control ones by 17.5% and 52.4%. The smallest effect was manifested in families of the second experimental group and was 17.5%. The largest melliferous capacity was showed by bee families of the first group and it was 52.4% higher, in average 16.78 kg of honey per each family. General results of marketable honey production by research bee families have confirmed significant influence of the quality of queen bees on the honey harvest. Thus, during the season 2015, the first and second research groups of bee families gathered 52% and 17% honey higher than the control ones. So, developed biotechnological method, the essence of which is feeding queen bees families with the bioactive feeding in the embryonic period, provided high-quality queen bees whose families under adverse weather conditions for honey harvest had the best melliferous capacity. It was established that bee families formed by using queen bees derived from queen bees families which were fed with bioactive feeding Nanostimulin and ApistimulinBM had 17% and 52% higher melliferous capacity under adverse weather conditions during honey harvest. Melliferous capacity of bee families depends upon the individual productive qualities of queen bees. At that, queen bees derived by using feeding ApistimulinBM are the most similar and their families have higher melliferous capacity than derived by using Nanostimulin and by generally accepted method.

2021 ◽  
Vol 7 (3) ◽  
pp. 52
Author(s):  
Yazan Hamzeh ◽  
Samir A. Rawashdeh

Research on the effect of adverse weather conditions on the performance of vision-based algorithms for automotive tasks has had significant interest. It is generally accepted that adverse weather conditions reduce the quality of captured images and have a detrimental effect on the performance of algorithms that rely on these images. Rain is a common and significant source of image quality degradation. Adherent rain on a vehicle’s windshield in the camera’s field of view causes distortion that affects a wide range of essential automotive perception tasks, such as object recognition, traffic sign recognition, localization, mapping, and other advanced driver assist systems (ADAS) and self-driving features. As rain is a common occurrence and as these systems are safety-critical, algorithm reliability in the presence of rain and potential countermeasures must be well understood. This survey paper describes the main techniques for detecting and removing adherent raindrops from images that accumulate on the protective cover of cameras.


2021 ◽  
pp. 227-237
Author(s):  
Yu. Вerezovsky ◽  
T. Kuzmina ◽  
M. Yedynovych ◽  
G. Boyko ◽  
N. Lyalina ◽  
...  

The article contains theoretical and experimental researches in the field of the preservation of flax raw material of high moisture content. In the article, factors that are worsening the quality of flax raw material, resulting in non-observance of agrotechnical and technological requirements of preparing, collecting, harvesting the stem material, adverse weather conditions and other factors, are considered. The objective of this paper is to study the influence of preservation agents’ concentrations and of hollow structure device on the quality of flax raw material during long-time storage. In the article, the influence of aqueous preservatives’ concentration, humidity, storage length on the quality of fibrous products, obtained as a result of processing stem material, is analyzed. The influence of the device of hollow structures, as an alternative to preservatives, on the storage process of bast crops stem material was evaluated. The method of flax retted straw storage is described, actions of the main factors influence on the strength of fibers are analyzed. It is demonstrated, that prolongation of flax raw material preservation time can be made by using preservatives without considerable wastes of quality.


2017 ◽  
Vol 11 (1) ◽  
pp. 31-41 ◽  
Author(s):  
Jozef Chavko ◽  
Anton Krištín

Abstract Foraging opportunism and feeding frequency are less studied parameters of behaviour in insectivorous falcons, many of which are endangered bird species. In this short study, prey composition and feeding frequency of red-footed falcon (Falco vespertinus) nestlings were studied using the method of camera recordings during seven days in July 2017 in southwestern Slovakia. Camera recording analyses of 2–3 chicks (14–26 days old) in three nests revealed a significant preference for insects (97%, n = 305 prey items), of which the Italian locust (Calliptamus italicus) was highly predominant (54%). We also found very high average chick feeding frequency (9.9 feedings per hour, n = 29 hours 22 min of regular observations), whereby the females fed their young ones more frequently (64.9%, n = 305 feedings) than the males (35.1%). Analyses of food composition in adverse weather conditions showed that unfavourable weather had a negative effect on chick feeding frequency, and in rainy weather the males fed significantly less than the females.


2018 ◽  
Vol 20 (89) ◽  
pp. 61-66
Author(s):  
H. M. Sedilo ◽  
I. S. Luchyn ◽  
M. V. Hryniv ◽  
L. M. Darmohray ◽  
J. I. Pivtorak ◽  
...  

According to the experiment, the productive effect of different amounts of grain of the triticale of Harroz variety in feed for the reproductive indices of feeding rabbits was established. According to the tasks assigned, five groups of nursing rabbits were selected and formed according to the principle of analogues. To feed the experimental nursing rabbits, a full granulated mixed feed was used in the structure of which there was a different content of triticale grain: II research group – 10.0%, III, IV and V research groups - 20.0%, 30.0% and 40.0% respectively . Nursing rabbits of the 1st control group were fed full-fat mixed fodders, which were balanced for the main nutrients, but did not contain triticale grain. In the study of the multiplicity of feeding rabbits with different contents of crushed grain of the triticale of the Harroz variety, it was higher in the 3rd and 4th experimental groups (in the ration of 20 and 30% of the crushed grain of triticale) with an index of 8.0–8.2 heads (P < 0.05). The large-fruited index predominated in the nursing rabbits of the 4th experimental group and amounted to 65 g; in the 1st, 2nd, 3rd and 5th groups it was 62, 63, 64, and 61g. The amount of milk of nursing rabbits is an indicator that positively correlates with fecundity, the weight of rabbits at birth (large-fruited), the preservation of the nest. Milk index was also the best in nursing rabbits of the 4th group and amounted to 2.83 kg, which is 0.09–0.24 kg more than in all other groups (P < 0.01). By the number of rabbits with weaning at 35 days, the fourth group of nursing rabbits predominated, this index was 7.1 g. The average live weight of one head during separation was higher by 40–50 g in the 3rd and 4th test groups compared to the first control group and amounted to 0.75 and 0.76 kg (P < 0.05). According to preliminary indications, the best nest weight in weaning during 35 days was the nursing rabbits of the 4th group – 5.36 kg, which is 0.47 kg higher than the control (P < 0.05). The highest percentage of conservation of rabbits before weaning at 35-day-old age was observed in groups 3, 4 and 5, and was at the level of 94.59; 93.42; 97.1%. It was found that the structure of the ration of nursing rabbits with a content of crushed grain of triticale of Harroz 20, 30 and 40% was significantly influenced the preservation of the nest. The index – the index of the reproductive qualities of feeding rabbits (IVKK), based on the indicators of large-fruited, milk and number of rabbits with weaning (35 days) was higher in feeding rabbits of 3rd and 4th groups and amounted to 126.4 and 128.8. The maximum reproductive indices of feeding rabbits provided a structural content in the diet of 30% of the crushed grain of the triticale of the Harroz variety (the fourth research group). The ration (30% of the triticale crushed grain) ensured the growth of the multiplicity by 8.5%, the size of the fetus by 5%, the milkness of the rabbits by 9%, the weight of the nest at weaning at 35 days old by 9.6%, and the complex index of IVKK by 6.5%.


Author(s):  
N. A. Ruban ◽  
O. S. Orishchuk ◽  
S. V. Tsap ◽  
L. M. Darmohray

One of the important conditions for the successful conduct of geese farming industry is normalized physiologically reasonable feeding birds that carried out by the use of complete feed and feed additives, including biologically active substances. Since days old, I (control) group of geese received during the research period, complete feed is made in terms of private enterprise «Orbita», II, III, IV and V (experimental) group received a complete feed with the addition of its composition of different doses of lecithin sunflower instead of a similar amount of soybean meal. At the beginning of the experiment live weight of geese had no significant differences in terms of research groups, indicating that similar selected poultry and averaged 116 – 118 grams. Since the first week of growing live weight of geese in experimental groups fed sunflower lecithin slightly increased. If, at the beginning it was not quite expressed, starting from the second week of growing this advantage becomes more significant. So, the live weight of geese at the age of two weeks in the control group was 1287 g, while the live weight of geese II, III, IV and V of experimental groups was higher by 1.4%, 4.3% (P < 0.01), 6.2% (P < 0.001) and 4.9% (P < 0.001), respectively. These differences observed between the experimental groups during the growing period. Thus, at the end of the first period of growth, namely four weeks of age, live weight of geese fourth experimental group was 3350 g, 8.0% (P < 0.001) higher relative to the control group by 5.6% compared to II experimental group, 2.8% (P < 0.01) III and 2.2% (P < 0.01) V research group. It should be noted that at the end of the second period, growing at the age of nine weeks goslings in control group matched the experimental group II on 2,3%, III – 5.1% (P <0.01), IV – 10.3% (P < 0.001) and V – 7.5% (P < 0.05), respectively. To study the anatomical and morphological structure of the experimental birds at the end of the scientific and economic experiment in the 60 days age were held control of slaughter. Our results indicate that different amounts of sunflower lecithin in diets of young geese during their growing meat differently affect their slaughter capacity. Table 3 shows that young geese feeding in the composition of animal feed sunflower lecithin has contributed to their live weight in experimental groups respectively 1.8%, 5.3%, 9.4% and 7.5% compared to the control group counterparts. For goose gut carcass weight preference geese in experimental group was respectively – 3.2%, 6.9%, 12.3% and 8.6%. The biggest muscle mass was observed in the experimental group IV geese and amounted to 1 895 g, that on 14.2% more muscle mass geese control group. The mass of muscle II, III and V of the research groups on the same indicator was higher by 3.0%, 7.7% and 9.2% in comparison with I control group. The use of sunflower lecithin in diets of young geese caused the increase in weight of internal fat. Thus this indicator preference experimental groups was – 5.7%, 15.4%, 25.1% and 18.3% according to analogue control. These changes have led to improved of meat and bone index. Thus, birds III, IV and V research groups preference for this indicator was 5.1%, 11.9% and 6.8% according to analogue controls. The indicator in poultry II experimental group was on par with the control group. Thus, putting in the diets of young geese sunflower lecithin positively affected the rate of growth of young geese slaughter their performance and made it possible to reduce the cost of feed per unit of growth. However, the best results were obtained when control weighing and slaughter, which is part of the feed was injected 0.4% sunflower lecithin.


PLoS ONE ◽  
2021 ◽  
Vol 16 (7) ◽  
pp. e0255377
Author(s):  
Harrison Wilde ◽  
John M. Dennis ◽  
Andrew P. McGovern ◽  
Sebastian J. Vollmer ◽  
Bilal A. Mateen

Objectives To describe the relationship between reported serious operational problems (SOPs), and mortality for patients with COVID-19 admitted to intensive care units (ICUs). Design English national retrospective cohort study. Setting 89 English hospital trusts (i.e. small groups of hospitals functioning as single operational units). Patients All adults with COVID-19 admitted to ICU between 2nd April and 1st December, 2020 (n = 6,737). Interventions N/A Main outcomes and measures Hospital trusts routinely submit declarations of whether they have experienced ‘serious operational problems’ in the last 24 hours (e.g. due to staffing issues, adverse weather conditions, etc.). Bayesian hierarchical models were used to estimate the association between in-hospital mortality (binary outcome) and: 1) an indicator for whether a SOP occurred on the date of a patient’s admission, and; 2) the proportion of the days in a patient’s stay that had a SOP occur within their trust. These models were adjusted for individual demographic characteristics (age, sex, ethnicity), and recorded comorbidities. Results Serious operational problems (SOPs) were common; reported in 47 trusts (52.8%) and were present for 2,701 (of 21,716; 12.4%) trust days. Overall mortality was 37.7% (2,539 deaths). Admission during a period of SOPs was associated with a substantially increased mortality; adjusted odds ratio (OR) 1.34 (95% posterior credible interval (PCI): 1.07 to 1.68). Mortality was also associated with the proportion of a patient’s admission duration that had concurrent SOPs; OR 1.47 (95% PCI: 1.10 to 1.96) for mortality where SOPs were present for 100% compared to 0% of the stay. Conclusion and relevance Serious operational problems at the trust-level are associated with a significant increase in mortality in patients with COVID-19 admitted to critical care. The link isn’t necessarily causal, but this observation justifies further research to determine if a binary indicator might be a valid prognostic marker for deteriorating quality of care.


Author(s):  
S. K. Mukenov

Currently, many scientists have proven the positive influence of feed additives on the productivity of different types of farm animals including bees since feed additives have a positive effect on the honey productivity of bee colonies and the quality of queen bees. The purpose of our work was to identify the effect of probiotics on the background of the dietary supplement Eracond on the acceptance of larvae and the weight of infertile queens. The scientific and economic experiment has been carried out on bees of Bashkir breed in an apiary located in the village of Nekrasovka in the Kartalinsky district in the Chelyabinsk region. Three groups of queen-rearing colony have been formed three in each. In the 2nd and 3rd experimental groups against the background of dietary supplement Erakond (50 mg/ kg) have been given: in the 2nd experimental group sugar syrup with Lactobacterin three doses per family, in the 3rd experimental group sugar syrup with Vetom 1,1 at the dose of 50 mg/kg. As a result, all the additives in the 2nd and 3rd experimental groups gave a positive result. The greatest effect on all indicators has been obtained with the combined use of 50 % sugar syrup with the addition of Eracond phytopreparation (50 mg/kg) and Vetom 1,1 probiotic (50 mg/kg). Feeding these drugs to queen rearing colonies contributed to the increase in the acceptance of larvae by 23,3 %, compared with the control and by 7,8 % compared with the 2nd experimental group, also had the positive influence on the weight of infertile queens by 11,4 % compared with the control group. The use of Vetom and Eracond contributed to the increase in the egg production of queens by 64,2, 54,9 and 57,0 % compared with the control for three accounting periods as well as the increase in the honey collection by 33,83 % or 4,5 kg.


2018 ◽  
Vol 51 ◽  
pp. 267-275
Author(s):  
O. S. Pilipchuk ◽  
V. I. Sheremeta ◽  
V. G. Kaplunenko

Modern pork production technologies are aimed at obtaining maximum productivity data, which are an indicator of the effectiveness of pig industry in general. The aim of the research was to develop a biotechnological method of increase of prolificacy of sows with 1 and 2 farrowing, using biologically active medicines of the neurotropic-metabolic action – Glyutam 1M and Nanovulin-BA. On the day of weaning, all the experimental sows were injected with vitamins Introvit in a dose of 10 ml/head. The sows in the research groups received Glutam 1M and Nanovulin-BA for three days in the morning in stern balls, which contained 100 grams of feed and 20 ml of medicine. The sows of the II and III experimental groups received Glutam 1M starting from the day of weaning. Nanovulin-BA was fed to the sows of the III and IV research groups at 0-2 day of sexual cycle. The females of the control group were fed by 20 ml of saline during these periods of reproductive cycle. In the II and III research groups the live weight of hypertrophous and normal piglets was bigger compared with the control one by 7.7%, 9.2% and 9.7%, 8.6% respectively. The weight of hypertrophous animals of the I group exceeded data of the control one within the error, while the weight of normal piglets was higher by 11.5%. The increase in live weight of hypertrophous and normal piglets of sows in the II and III research groups contributed to the significant increase of the total weight of newborn piglets by 26.3% and 26.3% (in comparison with the control group). In the I research group, it increased by 27.1%, mainly due to normal piglets’ weight and therefore was not likely. The influence of Glyutam 1M and Nanovulin-BA on the prolificacy of sows was analyzed, taking into account that the experimental groups were formed from sows with two different farrowing – 1 and 2. Live weight of the hypertrophous piglets of the sows from the I group after the 1 farrowing was higher by 8.8%, compared to animals which had 2 farrowing. Live weight of hypertrophous and normal piglets in both subgroups was almost at the same level, while the total weight of piglets from the animals with 2 farrowing was higher than from females with 1 farrowing by 10.7%. Total weight of newborn piglets from the sows in group III with 2 farrowing increased compared to the animals with 1 farrowing by 16.1%. Comparative analysis of the influence of sows’ age on live weight of piglets showed, that the live weight of normal piglets in the I experimental group with 2 farrowing was higher by 11% compared to the control one of the same age (with 2 farrowing). Total live weight of piglets in the I experimental group with 1 and 2 farrowing was higher by 23.0% and 26.8% compared to the control group of animals of the same age. In the II experimental group live weight of normal piglets from sows with 1 and 2 farrowing increased by 11% and 7.4% respectively in comparison with animals of the same age in the control group. Total live weight of newborn piglets in the II experimental group increased by 28.0% and 24.8% respectively compared to the animals of the same age of control group (1 and 2 farrowing). The live weight of hypertrophous piglets from experimental group III (2 farrowing) was higher by 15.1%. The injections of biologically active medicines during insemination of sows in the group III contributed to the increase of live weight of normal piglets (sows with 1 and 2 farrowing) compared with the control one by 11% and 8% respectively. In the III group of animals with 2 farrowing the total weight of newborn piglets increased significantly by 29.6% compared to control animals of the same age (with 2 farrowing). Analyzing live weight of hypertrophous piglets it should be noted, that in the control group of sows with 1 farrowing this category of piglets was absent. While control females with 2 farrowing and animals of the research group, regardless of their age, showed, that the live weight of hypertrophous piglets was almost at the same level. Comparative analysis between groups showed, that the live weight of hypertrophous and normal piglets in the I experimental group was higher in comparison with the control one by 14.1% and 11.5% respectively. Weight of hypertrophous piglets from females of the I experimental group was the same compared to the control one. While the weight of normal piglets increased by 10% compared to the control group. Injections of theneurotropic-metabolic medicines to the sows of the II and III research groups helped to increase the prolificacy by 15.1% and 9.2% and 12.2% and 9.9%. The live weight of normal piglets in the II and III research groups was higher by 8% and 9.2% respectively. Іn this way, the injections of biologically active medicine Glyutam 1M for 3 days after the weaning cause an increase in live weight of newborn piglets by 14.1%. Feeding females with Glyutam 1M and Nanovulin-BA at one time helped to increase live weight of piglets by 13%, and the injections of Nanovulin-BA only – by 11.8%. Injections of neurotropic-metabolic medicines with biologically active action on different schemes of their use cause the tendency to increase the live weight of both sexes embryos in the prenatal period up to 2 kg for sows of the 1 and 2 farrowing.


2019 ◽  
Author(s):  
Nur Tsalits Fahman Mughni

Teaching materials by integrating local culture makes easier for students to understand the subject matter in the learning process. The aims of the study is to measure the effectiveness of teaching materials based on local wisdom of agriculture in Binjai in improving the students problem solving abilities. The research method was a quasi experimental which use non equivalent control group in the pretest posttest design. The sample of study were students of Senior High School grade X in Binjai that consisted of experiment group which used teaching materials based on local wisdom of agriculture in Binjai and control group that used student handbooks. Teaching materials are tested by material experts and technology experts to ensure the quality of teaching materials. Data collection was conducted through test. The results showed that the teaching materials based on local wisdom of agriculture in Binjai effective in improving students problem solving abilities in the experimental group students based on the results of N gain value was 0.67 which has medium criteria. It means teaching materials based on agricultural local wisdom of agriculture in Binjai can be used as one of the teaching materials in learning activities.


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