INFLUENCE OF DETERGENTS AND DISINFECTANTS ON THE QUALITY INDICATORS OF EDIBLE HEN EGGS WASHED AND DISINFECTED

2020 ◽  
pp. 258-269
Author(s):  
S. Gordynets ◽  
L. Charniauskaya ◽  
J. Yakhnovets ◽  
S. Kosyanenko ◽  
A. Kiselev
Keyword(s):  
Control Sample ◽  
Storage Period ◽  
Control Group ◽  
Organoleptic Evaluation ◽  
Air Chamber ◽  
Egg Density ◽  
Egg Shells ◽  
Egg Shell ◽  
Ammonium Compounds ◽  
Experimental Group

The article presents the results of evaluating the effect of detergent and various disinfectants used for sanitary treatment of the surface of egg shells of hen edible on their quality and safety indicators. Four disinfectants belonging to different groups of drugs were selected for research: «SUNWAY DES» (peroxide), «Silversil Des» (silver-containing), «Lanex» (quaternary-ammonium compounds), «Catelon 502» (containing peracetic acid). A decrease of the mass of all samples of eggs during the whole storage period (35 days) 5,6–6,6% of initial, was increasing the height of the air chamber eggs 2,3–2,9 times, with the largest increase was in specimens treated by «Silvercel Des» and «Lanex». The decrease in egg density in salt solution was at the same level in all experimental samples. There was a decrease in the yolk index by 7,7% in the control sample and by 16,3–19,0% in the experimental samples, but the yolk shell did not break in all cases. By the end of the shelf eggs life, the shell thickness and elastic deformation met the requirements. According to microbiological indicators, all egg samples during 33 days of storage met the requirements of the technical normative legal acts. Organoleptic evaluation of eggs at 16 and 35 days of storage allowed us to establish that the best, closest in organoleptics to the eggs of the control group, were the eggs of the 1st experimental group, and the worst, according to the conclusion of the majority of tasters, were the eggs of the 3rd experimental group. Based on a comprehensive analysis of the research, it was found that «SUNWAY DES» and «Catelon 502» disinfectants can be recommended for disinfecting the surface of the egg shell of edible hen eggs.

scholarly journals Postharvest quality of hydroponic strawberry coated with chitosan-calcium gluconate

2020 ◽  
Author(s):  
Mai Sao Dam ◽  
Xuan Thi To ◽  
Quoc Tan Pham Le ◽  
Lien Le Phuong Nguyen ◽  
László Friedrich ◽  
...  
Keyword(s):  
Weight Loss ◽  
Calcium Gluconate ◽  
Control Sample ◽  
Fungal Growth ◽  
Storage Period ◽  
Solid Content ◽  
Postharvest Quality ◽  
Control Group ◽  
Soluble Solid Content ◽  
Soluble Solid

AbstractThe aim of this study was to evaluate the effect of edible coating on hydroponic strawberry during storage. Strawberries were coated with either 1% or 1.5% chitosan (CS) or with solution containing 1.5% chitosan and 0.5% calcium gluconate (CaGlu). After treatment, samples were stored at 10 °C, RH 90% for 10 days. The weight loss, soluble solid content, firmness, surface color, pH, and percentage of decay were evaluated each day during the experiment. It was observed that coating extended the postharvest life of hydroponic strawberry compared to control. Fungal growth occurred on control group at the 5th day and fruit treated with 1% CS at the 8th day of the storage period, whereas no visible sign was detected for other treatments. Soluble solid content and pH showed only minor change for all samples. Weight loss of coated fruit was below 6% after 10 days of storage, whereas the weight loss of control samples was around 10% at the end of measurement. Moreover, coating could maintain the firmness of strawberry compared to the control. The combination of chitosan and calcium gluconate showed the potential for prolonging the storage period of hydroponic strawberry till 10 days without decay, whereas the control sample had more than 60% of rotted fruit.

STUDYING THE ANTIMICROBIAL EFFECT OF DETERGENTS AND DISINFECTANTS ON THE MICROFLORA OF THE EGG SHELL SURFACE

2020 ◽  
pp. 248-257
Author(s):  
S. Gordynets ◽  
L. Charniauskaya ◽  
J. Yakhnovets ◽  
T. Hovzun
Keyword(s):  
Staphylococcus Aureus ◽  
Microbial Contamination ◽  
Antimicrobial Effect ◽  
Hand Washing ◽  
Pathogenic Microorganisms ◽  
Shell Surface ◽  
Manual Treatment ◽  
Egg Shells ◽  
Egg Shell ◽  
Ammonium Compounds

The article presents the results of evaluating the antimicrobial effect of detergents and disinfectants on the microflora of the eggshell surface. Washing and disinfection of eggs was carried out by manual treatment by immersion in washing and disinfecting solutions and subsequent washing with brushes. For washing eggs, an alkaline detergent with a «Sanet BIO» disinfectant effect was used, and for disinfection, one of the four selected disinfectants belonging to different groups of drugs: «SUNWAY DES» disinfectant (peroxide), «Silversil Des» disinfectant (silver-containing), «Lanex» disinfectant (based on Quaternary ammonium compounds), and «Catelon 502» disinfectant (containing peracetic acid). It was found that the treatment of eggs in order to reduce the contamination of the surface of their shells with «SUNWAY DES», «Catelon 502» and «Lanex» disinfectants by hand washing confirmed their effectiveness and leads to the disinfection of the shell from opportunistic and pathogenic microorganisms, as well as reduces the overall microbial contamination. Sanitization of egg shells of edible hen eggs by hand washing with the use of «Silversil Des» disinfectant in the spent modes showed that this tool is not effective in disinfecting egg shells, since immediately after processing, Staphylococcus aureus, Salmonella s.p.p. and Listeria s.p.p. bacteria were found on their surface.

scholarly journals Reducing implicit cognitive biases through the performing arts

2020 ◽  
Author(s):  
Josué García Arch ◽  
Cèlia Ventura-Gabarró ◽  
Pedro Lorente Adamuz ◽  
Pep Gatell Calvo ◽  
Lluís Fuentemilla
Keyword(s):  
Training Program ◽  
Performing Arts ◽  
Cognitive Biases ◽  
Control Sample ◽  
Control Group ◽  
Implicit Biases ◽  
Before And After ◽  
Separate Control ◽  
Experimental Group ◽  
Healthy Participants

The main purpose of the present research was to test whether involvement in a 14-day training program on the performing arts could reduce implicit biases. We asked healthy participants to complete an Implicit Association Test (IAT) to assess biased attitudes to physical illness in two separate sessions, before and after the training program. A separate control group matched by age, gender and educational level completed the two IAT sessions, separated by same number of days, without being involved in the training program. Results showed that participants who were involved in the training program reduced their implicit bias towards illness measured through IAT in the second session. This reduction in IAT measures was not observed in the control sample, despite the two IAT measures being matched in temporal delay with the experimental group. These findings suggest that an interventional program based on the performing arts could be effective in reducing levels of implicit biases among the general population.

Human Relations Training and Task-Orientation of Individuals

1977 ◽  
Vol 44 (3_suppl) ◽  
pp. 1123-1129
Author(s):  
Robert C. Hardy ◽  
Charles H. Flatter
Keyword(s):  
Control Sample ◽  
Teaching Experience ◽  
Control Group ◽  
Task Orientation ◽  
Human Relations ◽  
Control Groups ◽  
Task Oriented ◽  
And Control ◽  
Human Relations Training ◽  
Experimental Group

The problem was to investigate the effect of human relations training on individuals' relation-orientation as measured by the Least Preferred Co-worker scale. Experimental and control groups were matched on sex and teaching experience. Both groups were administered the Least Preferred Co-worker scale at the beginning and end of the experiment. The experimental group was given an 8 mo. human relations training program while the control group did not receive any training. Relation-oriented (high score) individuals became more task-oriented (low score) after human relations training than the control sample without such training. The reverse occurred for individuals who were initially task-oriented.

scholarly journals LEXICAL CATEGORIES: CONCEPT MAPPING INSTRUCTION ON THE EFFECT OF NOUN IDENTIFICATION IN FOREIGN LANGUAGE TEXTS

2019 ◽  
Author(s):  
José Luis Gómez Ramos ◽  
Enrique Arias Fernández ◽  
Juan Lirio Castro
Keyword(s):  
Foreign Language ◽  
Concept Mapping ◽  
Concept Maps ◽  
Control Sample ◽  
Control Group ◽  
Specific Information ◽  
Sample Group ◽  
Grammatical Categories ◽  
Mind Maps ◽  
Experimental Group

Concept maps basic training differences were examined in noun identification from written texts, in the context of reading and writing assignments in a foreign language. Sample groups were comprised of 10-year-old Spanish primary students who attend a bilingual school. Both male and female participants were included in the non-randomized experiment. Experimental and control sample groups were accurate in identifying singular and collective nouns, including plural irregular nouns. Although the trained sample group was efficient in detecting and categorising hypernyms and first hyponyms, compared to lower hyponym categories, pupils did not precisely discriminate adjectives within the texts, sometimes confusing them with nouns. In contrast, while the non-trained sample group disclosed precision in circling nouns and discriminating adjectives within the texts, they demonstrated less precision identifying other grammatical categories. The control sample group did not reveal accuracy discriminating verbs, adverbs, and pronouns from nouns when compared to the experimental group. Because of their lack of training, the control group displayed more creativity (charts, mind maps, tree diagrams...) when asked to create concept maps, in comparison to the experimental group. However, the trained group accomplished this activity satisfactorily. The outcome of this study reveals that a three-month trained concept mapping sample group disclose achievement in discriminating specific information from English texts. These conclusions suggest that concept mapping helps students differentiate lexical and grammatical categories from written foreign texts, which will benefit them when synthesizing the information to be learned.

scholarly journals Technological Properties Of Milk For Cheese Making With The Use Of Antioxidants In Diets For Cows With Subtoxic Dose Of Nitrates

2020 ◽  
Author(s):  
Marina G. Kokaeva ◽  
Rustem B. Temiraev ◽  
Magomed G. Chabaev ◽  
Roman V. Nekrasov ◽  
E.Yu. Tsis ◽  
...  
Keyword(s):  
Dry Matter ◽  
Reductase Activity ◽  
Effective Means ◽  
Control Sample ◽  
Nitrate Content ◽  
Control Group ◽  
Lactating Cows ◽  
Processing And Storage ◽  
Protein Milk ◽  
Experimental Group

AbstractThe most effective means for denitrifying products and fat oxidation processes is to prevent contamination of grain at all stages of cultivation, processing and storage. If it was not possible to prevent these processes, it is necessary to use preparations that reduce the harmful effects of nitrates, mycotoxins and peroxides. These include antioxidants, adsorbents. The aim of the research was to study the efficiency of use in diets containing a subtoxic dose of nitrates, adsorbent preparations ofSantochinum and Mold-Zap to increase the productivity, physicochemical and technological characteristics of milk of lactating cows. To achieve this goal, scientific and economic experiment was conducted on cows of the Swiss breed.Of the 40 cows, according to the method of analoguepairs, 4 groups of 10 animals each were formed. The combined use of preparations of Santochinum at a dose of 0.5 kg/t and Mold-Zap at a dose of 1.5 kg/t of compound feed contributed to an increase in the milk of cows of the 3rd experimental group, as compared to the control analogues, of the fat content by 0.21%, protein - by 0.17%, density - by 0.61°A, dry matter by 0.48%, vitamin C by 48.2%, vitamin A by 51.9% with a simultaneous decrease in the nitrate content by 45.1% and nitrite - by 55, 3%. Regarding the control, the milk of the cows of the 3rd experimental group had more fat globules by 11.9%, but with a smaller diameter - by 17.4%.The addition of these preparations to the diets of cows of the 3rd experimental grou, contributed to an increase in protein milk by 0.21%, the proportion of casein - by 0.31%, and α-casein - by 4.56%.Inthe sample of cheese from milk of cows of the 3rdexperimental group, there was an increase in the concentration of dry matter by 1.68%, protein in the dry matter - by 1.31%. After homogenization, in the milk of cows of the 3rd experimental group, the nitrate reductase activity of xanthine oxidase exceeded 2.36 times the sample of production of cows in the control group. This technological technique contributed to the stabilization of pH=5.17 in milk, which activates the process of reducing nitrates and nitrites to ammonia. The lowest concentration of nitrates and nitrites was in the sample of cheese from the milk of animals of the 3rd experimental group, exceeding in these parameters the control sample by 68.5 and 70.0%.

scholarly journals Influence of methionine from different sources on productivity traits of young rabbits

2019 ◽  
pp. 71-80
Author(s):  
L. Andrienko ◽  
V. Otchenashko
Keyword(s):  
Amino Acid ◽  
Nitrogen Balance ◽  
Control Sample ◽  
Live Weight ◽  
Nutrient Digestibility ◽  
Young Rabbit ◽  
Control Group ◽  
Back Muscle ◽  
The Third ◽  
Experimental Group

The article presents the research results of the compound feed with different methionine sources and its effect on live weight, slaughter rates, nutrient digestibility, nitrogen balance, chemical and amino acid composition of the longest back muscle, blood morphological rates of young rabbits. The results of the study indicate that the rabbit live weight of the 2nd experimental group, which has got to the compound feed with synthetic LM at the age of 70, 77 and 84 days significantly exceeds the control group by 2.1, 2.5, 2.6% and (P<0.01) respectively. Feeding on the compound feed with the addition of L methionine contributes an increase in the indwelling mass by 2.7 (P<0.05). The kidney carcass mass increases by 5.6% (p <0.05), the liver mass – by 10.6% and the longest back muscle mass – by 0.1%. The slaughter yield is higher in the second group than in the control group. In the third experimental group is higher by 2.7 2.8% respectively. . The young rabbits consuming the ration with LM have higher digestibility indices than control group. The second group exceeds the control by 0.3, 0.3, 0.4, 0.7 and 0.1%, respectively with the digestibility of organic matter, protein, fat, fiber. The nitrogen balance data analysis shows that nitrogen has been fed by 0.4 g or 0.8% more in the second group than in the control group. The emptied feces have less nitrogen by 0.01 g or 0.8% in the second group and by 0.01 g or 0.8% less than in the control group. The compound feed with the addition of LM affectes the chemical composition of the longest rabbit back muscle. There is more protein by 0.03%. in the muscles of the second experimental group than in the control sample. The young rabbits of the second experimental group have a higher content of amino acids in the muscles and they outperforme the control analogues of the third experimental group by 1.9 and 4.2% respectively. The rabbits feeding on LM fodder have higher morphological blood rate. Analyzing the above, we can conclude that the feed with methionine content of 0.41% and its source in the form of L methionine, probably improves the performance of young rabbit meat productivity. Key words: rabbits, methionine, live weight, compound feed, slaughter output, digestibility, nitrogen balance, amino acid, morphology.

scholarly journals POSSIBILITIES FOR APPRECIATION OF CHILD PSYCHO-MOTOR AVAILABILITY WHO PRACTICING TABLE TENNIS

GYMNASIUM ◽  
2017 ◽  
Vol XVII (2) ◽  
Author(s):  
Nicolae Ochiană
Keyword(s):  
Control Sample ◽  
Control Group ◽  
Table Tennis ◽  
Control Rules ◽  
The Media ◽  
Recorded Data ◽  
And Control ◽  
Experimental Group ◽  
Control Samples

Starting from the idea that selection is essential for performance in table tennis we want to develop a set of tests by which we can investigate the general and specific motor possibilities of children, enriching in this way quantitative and qualitative the existing control samples and control rules. The recorded data in the two groups have confirmed the hypothesis, there was obvious differences in comparison of the proposed samples. Statistically, there were obtained values ​​"abnormal" and the index values ​​of "t" shows insignificant differences in the media. The set of tests proposed and applied on the experimental group has proven the validity highlighting the same motor indicators as in the control group. The recorded results from control sample that was propose in the new test highlights some functional possibilities of the sportsman who are not highlighted by applying in other types of tests.

Innovative method of fight prevention and egg shell cuts

2020 ◽  
Vol 1 (9) ◽  
pp. 78-84
Author(s):  
I. I. Kochish ◽  
◽  
V. V. Nesterov ◽  
S. L. Smirnov ◽  
L. A. Volchkova ◽  
...  
Keyword(s):  
Significant Influence ◽  
Feed Additives ◽  
Egg Laying ◽  
Feed Consumption ◽  
Control Group ◽  
Egg Mass ◽  
Innovative Method ◽  
Egg Shell ◽  
Experimental Group

The article presents the results of research on the use of feed additives (E-selenium, Butophan OR, Nitamine OR) when keeping chickens in the period of 20–29 weeks of age. It was found that the intensity of egg laying in the experimental groups during the study period was 1,6–2,6% higher than in the control group. Minimum feed consumption (1,33 kg per 10 PCs. eggs) was set in the 2nd and 3rd experimental groups, which was lower than in the control group (by 0,02–0,1 kg). In all experimental groups (except the 1st), 100% safety of livestock was registered. In addition, a significant influence of the studied preparations on the commercial quality of eggs was established. In all experimental groups, the average egg mass was 0,5–2 g higher, and the total egg waste was 2,4–3,8% lower than in the control group. The maximum egg mass was registered in the 2nd, 3rd and 4th experimental groups. Egg incision was minimal (2,4%) in the 3rd experimental group. In the control and experimental (1st, 2nd and 4th) groups, these indicators were 3,28, 2,77 and 2,55%, respectively. There was no egg fight in 3 experimental groups, and in all the others it varied within 1,2–1,73%. Shell abnormalities were registered only in groups 1 and 2 (0,97; 1,19%) versus 1,48% in the control group.

scholarly journals Effectiveness of plyometric exercises to improve muscular strength and digital achievement for students in shot put

2019 ◽  
Vol 8 (2) ◽  
pp. 36-41
Author(s):  
Belaidouni Mustapha ◽  
Benzidane Houcine ◽  
Ahmed Benklaouz Touati ◽  
Mokrani Djamel
Keyword(s):  
Experimental Method ◽  
Muscular Strength ◽  
Control Sample ◽  
Achievement Test ◽  
Strength Test ◽  
Control Group ◽  
Experimental Sample ◽  
Significant Difference ◽  
Shot Put ◽  
Experimental Group

To identify the effectiveness of plyometric exercises to improve muscular strength and achievement in shot put event by students (20-22 years old). The researchers used an experimental method; the sample was formed by students belonging to the institute of physical education & sports, University of Mostaganem (Algeria). Thus it was the application of the experimental method was applied on a sample of third-year students (males) of 45 students divided into two groups, first control group of 22 students and an experimental group of 23 students. While the tests used were (strength test, achievement test). After the treatment of the results by statistical means, and through these results it have been reached several conclusions of them, plyometric Exercises to develop muscular strength and achievement in shot put [discussion significant difference (*p?0.05)]. And best improve of the experimental sample based on plyometric exercises compared to the control sample, which rely more on the technical side only in shot put event.

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