CHANGE OF CONSUMER PROPERTIES OF PORK, DEPENDING ON THE FEED DIET

Author(s):  
М.В. ЛУКЬЯНЕНКО ◽  
А.Д. АЧМИЗ ◽  
Р.В. КАЗАРЯН ◽  
А.С. БОРОДИХИН ◽  
Е.В. ВЕЛИКАНОВА

Изучено влияние кормового витаминно-минерального концентрата (КВМК) «Тетра+» на потребительские свойства свинины, в том числе пищевую ценность, технологические и кулинарные свойства. Объект исследования – свинина второй категории от отобранного из поголовья опытной и контрольной групп молодняка свиней массой 100 кг, находившихся на откорме 140 дней. Поросята контрольной группы, начиная от подсосного периода, получали основной рацион (ОР); поросята опытной группы получали КВМК «Тетра+» в количестве 1% в дополнение к ОР. Охлажденное мясо от молодняка свиней обоего пола контрольной и опытной групп оценивали по органолептическим показателям спустя 48 ч после убоя. Определено, что образцы свинины, полученной от опытной группы (ОГ) животных, содержат на 4,1% больше белка по сравнению с образцами свинины от контрольной группы (КГ), при этом доля влаги и жира в образцах мяса от ОГ ниже на 3,08 и 1,10% соответственно. Содержание фосфолипидов в свинине от ОГ на 0,32% выше, чем в свинине от КГ. Установлено, что влагосвязывающая способность мышечной ткани свинины от ОГ на 3,11% выше аналогичного показателя КГ; потери при тепловой обработке свинины от ОГ на 2,17% соответственно ниже. Кулинарно-технологический показатель мышечной ткани реберного отруба свинины от ОГ выше на 0,15 единиц. Суммарная дегустационная оценка образцов вареной свинины опытной и контрольной групп составила 44,3 и 39,7 баллов соответственно. The influence of feed vitamin and mineral concentrate (FV&MC) «Tetra+» on consumer properties of pork, including nutritional value, technological and culinary properties, was studied. The object of research is the second category of pork from the experimental and control groups of young pigs weighing 100 kg that were fattened for 140 days. Control group pigs received the main diet; experimental group received FV&MC «Tetra+» in an amount of 1% in addition to the main diet. Chilled meat from young pigs of both sexes of the control and experimental groups was evaluated by organoleptic parameters 48 hours after slaughter. It was determined that samples of pork obtained from the experimental group of animals contain 4,1% more protein compared to samples of pork from the control group, while the proportion of moisture and fat in meat samples from the experimental group of animals is lower by 3,08 and 1,10%, respectively. The content of phospholipids in pork from the experimental group is 0,32% higher than in pork from the control group. It was found that the moisture-binding capacity of the muscle tissue of pork from the experimental group is 3,11% higher than the same indicator of pork from the control group; losses during heat treatment of pork from the experimental group are 2,17% lower. Culinary and technological index of muscle tissue of the rib cut of pork from the experimental group is higher by 0,15. The total tasting score of cooked pork in the experimental and control groups was 44,3 and 39,7 points, respectively.

Author(s):  
Hasanul Arifin Zul And Masitowarni Siregar

This thesis is focused on the investigation of the effect of applying animal cartoon pictures on students’ achievement in writing narrative text. This study aims to find whether applying animal cartoon pictures significantly affect the students’ writing achievement or not. The data in this study were obtained by administering a written test. The population was the 2015/2016 first year (grade XI) of SMA Swasta Nusantara Lubuk Pakam and 66 students were taken as the sample by using random sampling. The sample was divided into two groups, experimental and control groups. The experimental group was taught by applying animal cartoon pictures while the control group without animal cartoon pictures (x = lecturing). The data were taken the scores from the pre-test and post-test to both experimental and control groups. These data were analyzed by using t-test. The result of computing the t-test obviously showed that t-observed is higher than t-table (5.21 >1,67) with the degree of freedom 64 (df =N-2) at the level significance 0,05 one tail test. It showed that the application of animal cartoon pictures significantly affected the students of SMA Swasta Nusantara Lubuk Pakam achievement in writing narrative text.


Author(s):  
Meryanti Napitupulu And Anni Holila Pulungan

This study was conducted as an attempt to discover the effect of applying Demonstration Method on students’ achievement in speaking skill. It was an experimental research. The subject was students of Grade XII, Vocational High School (Sekolah Menengah Kejuruan: SMK), which consisted of 79 students. The research was divided into two groups: experimental and control groups. The instrument used to collect the data was speaking test. To obtain the reliability of the test, the writer applied Kuder Richardson 21 formula. The result of the reliability was 0.7, and it was found that the test was reliable. The data were analyzed by using t-test formula. The analysis showed that the scores of the students in the experimental group were significantly higher than the scores of the students in the control group at the level of significant m = 0.05 with the degree of freedom (df) 77, t-observed value 8.9 > t-table value 1.99. The findings indicate that using Demonstration Method significantly affected the students’ achievement in speaking skill. So, English teachers are suggested to use Demonstration Method in order to improve students’ achievement in speaking skill.


1970 ◽  
Vol 7 (1) ◽  
pp. 89-98 ◽  
Author(s):  
Md Sharif Hossain ◽  
Fatema Begum

In Bangladesh some researchers have done several studies to find the correlation of simple diffuse goiter with arsenic level but no one conducted any study to find the differences of urinary iodine, urinary arsenic, radioiodine uptake, the thyroid stimulating hormone (TSH) and free thyroxin (FT4) levels between goitrous and non goitrous. That is why, in this research an attempt has been made to compare the urinary iodine, urinary arsenic, radioiodine uptake, TSH and FT4 levels between experimental group with simple diffuse goiter and healthy control group. In this study another purpose has also been made to find the associations between different pairs of variables for both experimental and control group. In this study we have tried to find the impacts of arsenic level on simple diffuse goiter. This is a case-control analytical study. The study is carried out in the Institute of Nuclear Medicine and Ultrasound, in collaboration with the thyroid out patient department of Bangabandhu Sheikh Mujib Medical University. A total of eighty five (85) subjects are included in the study. Among the 85 subjects, a sample of forty five is considered for experimental group with simple diffuse goiter and another sample of forty is considered for healthy control group without any thyroid disease. From the experimental results it has been found that, the arsenic levels, FT4 and radioiodine uptake levels at 2 hours between the experimental and control groups are significantly different but the urinary iodine levels, TSH levels and radioiodine uptake levels at 24 hours between the experimental and control groups are not statistically different. From the experimental results it has also been found that there is significant differentiation between experimental and controls groups in respect of association between different pairs of variables. In this study, another significant finding is that iodine deficiency is not only the factor of causing simple diffuse goiter, but arsenic level is also one of the most important factor of causing simple diffuse goiter. Key words: Iodine deficiency, Simple diffuse goiter, Urinary arsenic, Statistical analysis, Association, Experimental and Control groups  DOI = 10.3329/dujps.v7i1.1224 Dhaka Univ. J. Pharm. Sci. 7(1): 89-98, 2008 (June)


2017 ◽  
Vol 13 (1) ◽  
pp. 39
Author(s):  
Duriye Esra Angın

The purpose of this research is to investigate the effects of Dora the Explorer cartoon on the spatial concept acquisitions and spatial abilities of the preschool children. The study was carried out with 80, 60-71 month old children attending preschools. Post-test only control group model is used in the research in order to identify the existing phenomena in a controlled manner. “The Bracken Basic Concept Scale, Third Edition: Receptive (BBCSIII:R) Form Direction/Position Subscale” and two different “Spatial Ability Games” were used to assess children’s spatial concept acquisitions and spatial abilities. Independent sample t-test was used in order to compare the average of post-test scores of the children in the experimental and control groups. According to the findings, it is found that there is meaningful difference between scores of post-tests of direction/position subscale and spatial ability games score. Comparing the scores of post-test of direction/position subscale and spatial ability games of experimental and control groups, it was found that there was a meaningful differentiation in favor of experimental group.


2018 ◽  
Vol 7 (2) ◽  
pp. 91-100
Author(s):  
Islam Namazian Doost ◽  
Soheila Tahmasbi

This study aims to investigate the possible effects of peripheral learning on elementary EFL learners’ grammar improvement: the case of prepositions of time and place. Two elementary classes were selected as experimental and control groups. Before beginning the treatment, a grammar test was administered to both the groups as a pre-test. Then, as treatment, the experimental group was exposed to realia, pictures, posters and texts, while the control group was not. After term-long treatment of 10 weeks, the two groups received the same grammar test as post-test. The results of t-test showed that the experimental group improved their grammar ability, i.e., knowledge of prepositions of time and place more than their friends in the control group. The finding of the study may open an optional path for teachers to include some peripheral materials in their teaching environment to further invest on unconscious learning abilities of the students.   Keywords: Peripheral learning, reposition of time, prepositions of place, grammar.


2019 ◽  
Vol 2 (2) ◽  
pp. 269
Author(s):  
Yoga Pratama

The objectives of this study were to find out whether or not there was significant improvement in writing and speaking achievements of the eighth grade students of SMPN1 Jarai after they were taught by using Sociogram, to find out whether or not there was significant improvement in each aspect of writing and speaking achievements of the eighth grade students of SMPN1 Jarai after they were taught by using Sociogram, to find out whether or not there was significant difference in writing and speaking achievements between the eighth grade students of SMP 1 Jarai who were taught by using Sociogram and those who were not, and to find out the perception of the eighth grade students of SMPN 1 Jarai after they were taught by using Socoiogram. In this paper, an experimental research method with pre and post test control group design was used with 70 students as the sample divided into two groups, experimental and control group. However, only the students of the experimental group were taught by using Sociogram. The obtained data were analyzed by using t-test. The students were given questionnaire to know their perceptions. The result showed that there was a significant difference in both students? writing and speaking achievements after they were tought by using Sociogram. Furthermore, it was found that there was a significant difference in students? writing and speaking achievement between the experimental and control groups. In conclusion, Sociogram improves the students? writing and speaking achievements.


Author(s):  
Mohammed bin Majed bin Shariah al - Shammari

The aim of this study was to identify the effectiveness of teaching role playing strategy in developing dialogue skills in the immortal language of the intermediate third grade students. To achieve the objectives of the study, the researcher used the semi-experimental method by designing the two equal groups. The sample contains 51 students, 26 students for the control group and 25 students for the experimental group. The researcher used the statistical treatments using the SPSS program, The study has resulted in The results showed that the level of dialogue skills on the student scale among the average third-grade students in the experimental and control groups was medium. The mean of the two groups was on all dialogue skills (2.23). The skill of expressing the opinion is one of the most common dialogue skills, (2.25), while the skill of listening and listening is second, with an average of (2.24), followed by self-esteem in third place with an average of 2.23. Finally, ). In addition, there were statistically significant differences at the level of α 0.05 0.05 in post-performance in all dialogue skills (self-esteem, good listening and listening, respect for others, expression of opinion). In the light of its findings, the researcher made a number of recommendations.


Author(s):  
Salim Ahmed Saif Al-rashdi

    The present study aimed at uncovering the effectiveness of employing the enrichment activities for mental thinking on the development of mathematical thinking and achievement among Grade 7 students. To achieve the research objectives, the researcher used the semi experimental design known as the design of the control group with the tribal and remote tests. In light of the experimental design, the average Grade 7 students tested the sample of the study in the second semester of 30 students who were divided into 15 students for the experimental group and 15 students for the control group after checking the validity and stability of the tools. The results showed that there was a statistically significant difference at (0.05) between the mean scores of the experimental and control groups in the cognitive achievement test related to the unit of Engineering in the second semester and the mathematical thinking test for the average of the experimental group. The results also showed a statistically significant difference) between the average scores of the experimental group students in the tribal and remote applications in the cognitive achievement test and the mathematical thinking test, and in favor of the average post-implementation. In the light of these results, the study presented a number of recommendations and suggestions.   ، ، ، ،


Author(s):  
Behnam Behforouz ◽  
Anca Daniela Frumuselu

This paper investigates the efficiency of text messaging as an English as a Foreign Language (EFL) instructional tool to enhance learner autonomy and perception at the Islamic Azad University-South Tehran Branch, Iran. The study considers seventy-four learners to participate in the study after the administration of an Oxford Placement Test to measure their proficiency level. Participants are randomly assigned in experimental and control groups, including 37 participants each. A questionnaire is used as a pretest and posttest to measure learners` autonomy. Participants from the experimental group use text messaging (the treatment) to receive instructions, whereas those from the control group receive traditional classroom instructions in a face-to-face channel. A semi-structured interview is also used to collect date on experimental group participants` perception in using MALL in classrooms. The results reveal remarkable differences between the experimental and control groups’ means on their learner autonomy scores. However, the impact of the independent samples t-test has shown that there is no statistically meaningful gender difference among the learners regarding their autonomy scores. The findings based on the semi-structured interview showed complimentary views on MALL. The current study is beneficial since its outcomes could be relevant for EFL curriculum developers and English language teachers in the use of mobile learning and text messaging in the English classroom.


2019 ◽  
Vol 3 (2) ◽  

Objective: To search for a dental pulp preservative method in experimental pulpitis. Methods: 20 rabbits with experimental pulpitis were selected for this study; Teeth were randomly assigned to 2 groups (experimental and control groups) based on the final irrigation methods. In experimental group (double-pinhole drainage), the two pinholes were drilled in middle 1/3 dental cervix of buccal labial surface of tooth; the pinholes were inserted into infant transfusion needles then the two syringes were contacted with them, one for suck, another for irrigation. In control group, pinhole was sealed. Rabbits were executed in 1, 3, 5, 7 day. The inflammation in pulp chamber was assessed after 1, 3, 5, and 7 days. Results: At the 1, 5 day time intervals, control group reported more inflammation than experimental group (P < .05). There was no significant difference between two groups at the other time intervals (P > .05), and in all groups the inflammation decreased over time. Conclusion: Dental pulp can be preserved by double-pinhole drainage efficiently.


Sign in / Sign up

Export Citation Format

Share Document