scholarly journals Modeling effect of selenium on broiler chickens’ body

Author(s):  
O. I. Sobolev ◽  
B. V. Gutyj ◽  
Y. V. Zasukha ◽  
P. M. Karkach ◽  
V. F. Fesenko ◽  
...  

In recent years, based on new scientific data, many countries worldwide have been revising the existing standards for introducing trace elements in mixed feed for highly productive broiler chicken crosses. This also applies to selenium, which is recognized as an indispensable biotic ultramicroelement with a wide range of biological action according to modern classification. However, some aspects of the selenium effects on poultry have not been elucidated yet. We have conducted comprehensive research to deepen and expand modern ideas about the biological role of selenium, its impact on the interior and productive qualities of broiler chickens in the post-embryonic period of ontogenesis. One of the tasks was to study the causal relationship between the level of selenium consumption by broiler chickens and the studied indicators. The research was conducted on broiler chickens of the Cobb 500 cross. During the rearing period, the feeding of broiler chickens of all groups was carried out with dry full-fledged mixed feeds following the existing norms. The poultry of the first control group did not receive selenium supplementation. The poultry of the second experimental group was additionally injected with Selenium at the rate of 0.2 mg/kg, the third of 0.3, and the fourth of 0.4 mg/kg. When conducting a correlation analysis of the obtained experimental data, it was found that there are different levels and directions of relationship between internal and economically valuable features included in the study, which may vary depending on the selenium content in mixed feed for broiler chickens. A scheme of modeling the effect of selenium on broiler chickens’ bodies is proposed.

2021 ◽  
pp. 037957212110254
Author(s):  
Harleen Kaur ◽  
Neerja Singla ◽  
Rohini Jain

Objective: India is the second country after China having the highest population prevalence of diabetes. Several research studies investigating diabetes have been done, but not much work has been done on prediabetes. The purpose of this study was to investigate the effect of nutrition and lifestyle modification on prediabetic females. Methods: A total of 120 prediabetic females from Ludhiana city were divided into 2 matched groups: control group (n = 60) and experimental group (n = 60). Impact of nutrition intervention for dietary and lifestyle modification (for 3 months) was assessed on the anthropometric, dietary, biochemical parameters, and diabetes risk score of the experimental group and control group (no intervention). Results: All the selected 120 subjects completed the study (experimental group = 60; control group = 60). There was significant difference in the changes between the 2 groups throughout the study. The fasting blood glucose and glycated hemoglobin A1c levels of the experimental group subjects reduced significantly ( P ≤ .01). However, no change was observed among the control group subjects. The lipid profile of the experimental group showed a significant improvement ( P ≤ .01). Conclusion: Nutrition counselling of the prediabetics regarding dietary and lifestyle modification is recommended so as to improve their metabolic control, thus preventing them from being diabetics.


2020 ◽  
pp. 102986492097472
Author(s):  
Katherine O’Neill ◽  
Hauke Egermann

Recent research has explored the role of empathy in the context of music listening. Here, through an empathy priming paradigm, situational empathy was shown to act as a causal mechanism in inducing emotion, although the way empathy was primed had low levels of ecological validity. We therefore conducted an online experiment to explore the extent to which information about a composer’s expressive intentions when writing a piece of music would significantly affect the degree to which participants reportedly empathise with the composer and in turn influence emotional responses to expressive music. A total of 229 participants were randomly assigned to three groups. The experimental group read short texts describing the emotions felt by the composer during the process of composition. To control for the effect of text regardless of its content, one control group read texts describing the characteristics of the music they were to hear, and a second control group was not given any textual information. Participants listened to 30-second excerpts of four pieces of music, selected to express emotions from the four quadrants of the circumplex theory of emotion. Having heard each music excerpt, participants rated the valence and arousal they experienced and completed a measure of situational empathy. Results show that situational empathy in response to music is significantly associated with trait empathy. As opposed to those in the control conditions, participants in the experimental group responded with significantly higher levels of situational empathy. Receiving this text significantly moderated the effect of the expressiveness of stimuli on induced emotion, indicating that it induced empathy. We conclude that empathy can be induced during music listening through the provision of information about the specific emotions of a person relating to the music. These findings contribute to an understanding of the psychological mechanisms that underlie emotional responses to music.


2016 ◽  
Vol 4 (1) ◽  
Author(s):  
Sujit Dhanraj Kumavat

The objective of the present study was to find out the role of emotion in effective teaching of junior college students. The sample for the present research selected from the grantable junior college in Ahmednagar. For the research 11th class 90 students of Commerce faculty was selected. Among them 30 student selected for the positive emotion teaching group (Experimental group I). 30 students selected for the negative emotion (Experimental group II). And 30 students were selected for the neutral group (Control group III). The age range of the students were 17 to 18 years (M=35.00 SD=7.38). In the research Simple random method was used. The first hypothesis of the research was positive emotional teaching method high in English retention than negative and neutral teaching methods. Tolls 11th class English syllabus selected for the study. Result first result was showed that positive emotional teaching had significantly high English retention than the negative and neutral emotional teaching methods.


2020 ◽  
Vol 5 (2) ◽  
pp. 63-71
Author(s):  
Vladimir Nikulin ◽  
Aleksandra Mustafina

The aim of the study is to increase the productive qualities of broiler chickens by including ultrafine silicon oxide into main diet. During the experiment, the biological effect of ultrafine silicon oxide on broiler chickens was estab-lished. Use of ultrafine SiO2 particles for poultry feeding contributed to an increase in the number of red blood cells and content of total protein and albumins. By the end of the experiment, the number of red blood cells in birds in-creased by 17.43% (P≤0.001) – in the blood of birds of the first experimental group, 16.51% (P≤0.01) – the second one, 20.80% (P≤0.001) – the third experimental and 21.71% (P≤0.001) – the fourth experimental group, compared with the indicator of the control group. The amount of total protein in blood serum of chickens of the first and the second experimental groups increased by 1.36-1.39 %, in the third and fourth ones there was a significant (P≤0.05) increase by 5.45 and 3.05%, respectively. The blood glucose content of chickens in the experimental groups is higher by 8.04-23.65% compared to this indicator with ones in the control group. During the experiment feed con-sumption per 1 kg gain of live weight decreased: in the first experimental group by 3.00 % in the second by – 0.50 %, the third – 6.00 % the fourth– by 4.50 %, compared to this with the control group. The chicken’s vibrancy of the first the experimental group was higher by 4.77 %, the second – by 6.20 %, the third – by 19.25 % and the fourth– by 11.59% than in the control one. Consequently, when converting the feed energy into the body energy of a broiler chicken, the energy conversion coefficient of the experimental group of poultry is higher than that of the control one by 7.16-21.76 %. Thus, the most optimal dose for further research was determined.


Author(s):  
S. M. Medvid

The article presents data on the influence of the complex of micro elements (Fe, Cu, Zn, Co, Mn) in the form of aquacitrate on the indices of non-specific and cellular immunity in chicken broilers. The poultry received a fodder, balanced by nutrients, according to its type, age and productivity. Control group of chickens were added standard mineral premix (SP) from inorganic compounds of bioelements. Broilers of experimental groups were given water with a complex mineral additive of aquacitrates. In particular, the chickens of the first experimental group – in the amount corresponding to their content in the standard premix (SP), and the 2nd, 3rd, 4th and 5th experimental groups – in the amount equal to 3/4, 1/2, 1/4 and 1/10 of the content of mineral elements in the standard premix. It was found that bactericidal and lysozyme activity of blood serum (BASB and LASB) were the highest in broiler chickens of the third and fourth experimental groups and exceeded the control values by 5.7 and 5.3%, respectively. In the bird of the second and fifth groups, the studied indicators were closer to the ones in control. However, in the chickens of the group D1, giving them the highest studied dose of aquacitrate of micor elements, the values of BASB and LASB tended to decrease. Concerning the level of CIC in serum, it was the highest in the chickens of the second, third and fourth groups, the lowest in the group D1. A similar pattern is also characteristic for phagocytic activity of pseudoiesinophils (PhA). The bite of half and even the quaternary amount of citrates of micro elements, compared with the amount of bioelements in inorganic form, provided an increase, compared to control, of PhA. At such a dose of micro elements in the nanoform in the blood of broilers, the number of T-total and T-active lymphocytes increased, including T-heeler cells and decreased the relative number of T-suppressors. The bird of the first experimental group was characterized by a decrease in the percentage of T-heeler against the background of a slight increase of T-suppressors. Thus, the results of studies of indices of nonspecific and cellular immunity suggest that micor elements in the nanodisperse form, due to better bioavailability and high bioactivity, have a positive effect on the formation and development of the immune system in broiler chickens at a dose corresponding to 25 and 50%, from recommended quantity of biometals in the standard premix.


Author(s):  
І. В. Яценко ◽  
В. М. Кириченко

Проаналізовано бактеріальну контамінацію умовно-патогенними та патогенними мікроорганізмамипродуктів забою курчат-бройлерів (білі і червонім’язи, серце, печінка, м’язова частина шлунку) в разізбагачення раціону наномікроелементною кормовоюдобавкою (НМКД) «Мікростимулін» протягом чоти-рьох діб зберігання за температури 0–4 оС. Встанов-лено, що найменший рівень МАФАнМ, БГКП, бакте-рій роду Proteus реєструвався в 3-й дослідній групі,курчатам-бройлерам якої задавали з водою 20 см3/дм3НМКД «Мікростимулін» у всіх досліджуваних продук-тах забою. Найбільший рівень МАФАнМ, БГКП, бак-терій роду Proteus реєструвався в контрольній групі,курчатам-бройлерам якої не задавали НМКД «Мікро-стимулін» з водою. Доведено залежність між дозоюНМКД «Мікростимулін» і кількістю мікроорганізміву продуктах забою птиці. The bacterial contamination of broiler chicken slaughter products (white and red muscles, heart, liver, muscular stomach) by conditionally pathogenic and pathogenic microorganisms when the ration of the chickens was enriched by nanomicroelement feed additive (NMFA) «Microstimulin» for four days of storage at 0–4 ºC has been analyzed. It has been found out that the lowest level of MAFAnM, BGIR, bacteria Proteus in all slaughter products under investigation was registered in the 3rd experimental group the broiler chickens of which were given 20 cm³/dm³ NMFA «Microstimulin» with water. The highest level of MAFAnM, BGIR, bacteria Proteus was registered in the control group the broiler chickens which were not given NMFA «Microstimulin» with water. The dependence between the dose of NMFA «Microstimulin» and the number of microorganisms in the products of slaughtering has been proved.


2017 ◽  
Vol 8 (5) ◽  
pp. 835 ◽  
Author(s):  
Leonardo Veliz

The present study examined the role of awareness of metaphor in learners’ lexical learning. A total of 35 intermediate English as second language (ESL) students participated in this study. Participants were randomly divided into two small groups. One (N = 17) served as the control group and the other (N = 18) as the experimental group. Both groups were taught several metaphorically-used expressions over a period of six weeks. The groups differed in that the experimental group received systematic and explicit explanations of the source and target relationships that underlie metaphor, while the control group did not receive such instruction. Pre-tests and Post-tests were administered in order to measure lexical understanding of metaphorical items. Two journal entries were given out to students at two different intervals throughout the teaching period in order to tap into their views of how their lexical understanding of metaphor was changing, or not changing, over time. Results revealed that those students who received systematic and explicit explanations on the concrete experiential basis of metaphor showed greater understanding of metaphorical meanings, and seemed more inclined to unpacking their metaphoricity by looking at what lies behind them.


2021 ◽  
Vol 941 (1) ◽  
pp. 012005
Author(s):  
Lysko Svetlana ◽  
Valentina Pleshakova ◽  
Nadegda Lescheva ◽  
Marina Zadorozhnaya ◽  
Tatyana Lorengel

Abstract The current development stage of the poultry industry is characterized by a rapid consolidation of the role of pathogenic and opportunistic microorganisms. It was found that some phytopreparations have a diverse impact on the persistent characteristics of microorganisms. This work aims to study the influence of the nanophytopreparation “Betulin in carbon microsphere” on the manifestation of pathogenic (hemolytic, adhesive, proteolytic, catalase activities) and persistent (antilysozyme, anti-complementary activities) characteristics of microorganisms isolated from broiler chickens. Studied were microorganisms (Escherichia coli, Citrobacter freundii, Staphylococcus aureus, Salmonella spp., Pseudomonas aeruginosa) isolated from samples of broiler chicken droppings. The nanophytopreparation “Betulin in carbon microsphere” was prophylactically added to the diet of chickens. As a control, considered were cultures of microorganisms isolated from broiler chickens, who did not receive the preparation in the diet. It was established that 37.5% of E. coli cultures isolated from droppings of the control broiler group exhibit hemolytic activity, while E. coli isolates from the experimental group did not have this activity. The percentage of isolated cultures of microorganisms that showed adhesive, proteolytic and catalase activity was lower for broiler chickens of the experimental group compared to the control one. This tendency was observed when studying persistent factors, in particular, antilysozyme and anti-complementary characteristics. The nanophytopreparation “Betulin in carbon microsphere” can be applied not only to increase the general resistance of the poultry body but also to target the main types of microbiocenosis joints, reducing their pathogenic and persistent potential.


Author(s):  
S. A. Shpуnova ◽  
O. A. Yadrishchenskaya ◽  
T. V. Selina ◽  
E. A. Basova

In order to increase the meat productivity of broiler chickens, increase production volumes and reduce the prime-cost of poultry products, it is necessary not only to ensure balanced feeding and compliance with production technology but also to include in the poultry diet non-traditional additives, biologically active substances that contribute to the normalization of metabolic processes and improve the digestibility of feed nutrients. One of these dietary additives is Betulin extracted from birch bark, which has antioxidant and immunomodulatory properties. In this regard, the purpose of the research was to study the influence of compound feed with the introduction of 2 % feed additive based on a synthetic microspherical nanoporous carbon carrier containing biologically active Betulin in its composition on the productivity of broilers. The results of studies on broiler chickens using compound feed with 2 % feed additive have been presented in the article. It has been found that the feed consumption per 1 kg of live weight gain in poultry of the experimental group have been lower by 9,5 % due to better absorption of nutrients, the live weight of broiler chickens of the experimental group at the age of 42 days was 2625,6 g and it was higher than the control group by 3,68 %. The digestibility of crude protein and fat reached 92,73 and 88,03 %, which exceeded the control group by 1,03 and 3,03 abs.%, respectively. It has been found that the use of compound feed with 2 % of the feed additive with the biologically active substance is of practical importance in connection with the increase in the productivity of broilers and the level of profitability of meat production by 8,2 abs.%.


Author(s):  
B. S. Kaloev ◽  
M. O. Ibragimov ◽  
M. M. Shagaipov

The reliability of the results obtained in scientific and economic experiments on the study of the effectiveness of the use of various feed components, including biologically active substances in the rearing of broilers needs to be confi rmed in production conditions. The purpose of the research was to study the joint use of enzyme drugs and lecithin in the rearing of broiler chickens. The results of production experiment on the study of the effectiveness of the joint inclusion of enzyme drugs Sunzyme and Sunfyse 5000 as well as lecithin in the diet of broiler chickens of the cross Ross-308 have been presented in the article. Production tests have been carried out under the conditions of the breeding farm “Achkhoy– Martanovsky” in the Chechen Republic. The duration of the experiment was 45 days. For research on the principle of analog groups two groups have been formed: a control group and an experimental group of 1000 heads in each. The broilers of the control group have been fed compound feed prepared in accordance with the growing period and consisting mainly of grain components of local production. The broilers of the experimental group have been fed the same compound feed, but with the addition of two enzyme drugs Sanzyme and Sanfyse 5000 (100 g/t of feed) as well as lecithin (10 g/kg of feed). The results of the production experiment fully confi rmed the data obtained in the scientific and economic experiment. The positive effect of the joint use of the studied enzyme drugs and lecithin has been manifested in all the studied productive traits. In particular, the increase in live weight of broilers increased by 12,1 %, slaughter yield by 3,5 %, the yield of carcasses of the 1st category by 3,0 %. The main economic indicators also found their confirmation: feed consumption per unit of growth decreased by 11,7 %, additional profit was received in the amount of 27308,2 rubles, the level of profitability of broiler rearing increased by 18,4 %.


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