Establishment of optimum regression model and determination of relationships between body measurements and slaughter traits in Japanese quails by path analysis

2015 ◽  
Vol 55 (6) ◽  
pp. 799
Author(s):  
Fatih Uckardes ◽  
Dogan Narinc ◽  
Hande Kucukonder
Keyword(s):  
Path Analysis ◽  
Direct Effect ◽  
Prediction Models ◽  
Carcass Weight ◽  
Coefficient Of Determination ◽  
Multiple Regression Equation ◽  
Path Coefficient ◽  
Regression Equations ◽  
Linear Type ◽  
Japanese Quails

Path analysis was used to investigate direct, indirect and total effects of some morphological measurements on slaughter and carcass traits in Japanese quails. Bodyweight, shank length, shank diameter, breast circumference and body length measurements were taken from 219 Japanese quails. Bivariate correlations between carcass weight and morphological traits in quails ranged from 0.405 to 0.864. The direct effect of bodyweight on carcass weight was the strongest in the study and (path coefficient of 0.85) positively influenced carcass weight (P < 0.01). The direct effect of other linear-type traits on carcass weight was non-significant as revealed by t-test (P > 0.05). These traits were indirectly realised mostly by shank diameter. Thus, they were dropped from the final regression equations to obtain much more simplified prediction models. The optimum multiple regression equation for Japanese quails included bodyweight, with coefficient of determination (R2) of 0.7463. The correlation between characters was determined in more detail by using path analysis in this study. Thus, it was shown that path analysis could be used for selecting a variable. The forecast indices obtained in this study could aid in weight estimation, selection and breeding programs.

scholarly journals Application of path analysis methodology in assessing the relationship between body weight and biometric traits of Red Sokoto goats in northern Nigeria

2012 ◽  
Vol 28 (1) ◽  
pp. 107-117 ◽  
Author(s):  
A. Yakubu ◽  
G.L. Mohammed
Keyword(s):  
Body Weight ◽  
Path Analysis ◽  
Body Length ◽  
Neck Circumference ◽  
The Body ◽  
Coefficient Of Determination ◽  
Path Coefficient ◽  
Northern Nigeria ◽  
Linear Type ◽  
Chest Girth

Relationship between body weight (BW) and seven morphobiometrical traits [withers height (WH), body length (BL), chest girth (CG), shoulder width (SW), ear length (EL), cannon circumference (CC) and neck circumference (NC)] were studied in 142 Red Sokoto goats aged 19.3-30.6 months old using path analysis. The animals were randomly selected in certain smallholders? farms located in northern Nigeria. Pair-wise correlations among body weights and linear type traits were positive and highly significant (r = 0.74 - 0.92; P< 0.01). The path analysis revealed that body length had the highest direct effect on body weight, closely followed by chest girth and shoulder width, respectively (path coefficient = 0.354, 0.253 and 0.214 for BL, CG and SW, respectively). The optimum linear regression model with a coefficient of determination ( R2) value of 0.934 included forecast indices, such as body length, chest girth, shoulder width, cannon circumference and neck circumference. This regression equation could be used to predict the body weight of Red Sokoto goats in the field and for selection purposes.

scholarly journals PENGARUH KEPEMIMPINAN, LINGKUNGAN KERJA, KOMPETENSI DAN BUDAYA ORGANISASI TERHADAP KEPUASAN KERJA YANG BERDAMPAK PADA KINERJA DOSEN POLITEKNIK ATMI SURAKARTA

2020 ◽  
Vol 30 (01) ◽  
pp. 015-030
Author(s):  
Dewi Kartikasari
Keyword(s):  
Job Satisfaction ◽  
Organizational Culture ◽  
Path Analysis ◽  
Work Environment ◽  
Direct Effect ◽  
Indirect Effect ◽  
Working Environment ◽  
Primary Data ◽  
Coefficient Of Determination ◽  
Test Results

The purpose of this study are to examine and analyze the influence of Leadership, Work Environment, Competence And Organizational Culture To Job Satisfaction That Impact Lecturer Performance At Polytechnic ATMI Surakarta.This study is a survey research. The data used are primary data by sampling of lecturer at Polytechnic ATMI Surakarta as many as 57 respondents. The data analysis method was tested by validity, reliability test, t-test, F, coefficient of determination (R2) and path analysis test.T test results as follows: leadership not significant effect on job satisfaction, work environment significant effect on job satisfaction, competence significant effect on job satisfaction, organizational culture not significant effect on job satisfaction, leadership not significant effect on performance, the working environment have a significant effect on performance, competence significantly influence the performance, organizational culture not significant effect on the performance, satisfaction significant effect on the performance of work. F test results showed simultaneous variables of leadership, work environment, competence, organizational culture and job satisfaction have a significant effect on the performance of lecturers. Results Analysis The coefficient of determination (R2) shows that 77.7% of faculty performance variation can be explained by the leadership, work environment, competence, organizational culture and job satisfaction while the remaining 22.3% is explained by other factors outside the model. The result of path analysis showed a direct influence on the performance of greater competence than the indirect effect on performance competence through job satisfaction. The direct effect on the performance of the work environment is greater than the indirect effect on the performance of the work environment through job satisfaction. The direct effect on the performance leadership is smaller than the indirect effect of leadership on performance through job satisfaction. The direct effect on the performance organizational culture is smaller than the indirect effect of organizational culture on performance through job satisfaction. Based on the results of total leverage to improve performance would be more effective if through increased competence.

Effect Of Leadership Style and Employee Engagement on Employee Performance At Bank BJB Branch of South Tangerang City

2020 ◽  
Vol 1 (1) ◽  
pp. 55-69
Author(s):  
Siti Aas Asyiah ◽  
Bambang Dwi Hartono
Keyword(s):  
Path Analysis ◽  
Organizational Performance ◽  
Employee Engagement ◽  
Direct Effect ◽  
Leadership Style ◽  
Employee Performance ◽  
Sampling Technique ◽  
Measurement Tool ◽  
Path Coefficient ◽  
Increase Productivity

The objective of this study is to analyze the effect of leadership style and employee engagement on employee performance at Bank BJB branch of South Tangerang.  The method used is descriptive quantitative, survey, with questionnaire, and with the technique of path analysis. Sampling technique used was purposive sampling. Data obtained using a measurement tool in the form of a questionnaire was processed using SPSS 25, to know the effect of each variable. Data analysis methods used, partial regression analysis and multiple regression combined with path analysis to further clarify the relationship between variables. The results of this study showed that there is: negative and insignificant direct effect between Leadership Style variable on Employee Performance, obtained path coefficient of 0.258 with a significance of t of 0.595. The positive and significant direct effect between the Leadership Style variable on the Employee Engagement variable, obtained a path coefficient of 0.505 with a significance T of 0.000. The effectiveness of the leadership style of a leader depends on factors of organizational culture, authority possessed, goals, ability to influence, both formal and informal. Attachment or involvement of subordinates influences very significantly on organizational performance, and good performance is a performance that follows procedures according to established standards, and with several criteria in order to increase productivity therefore it is expected to run in accordance with what is desired..

Assessment of relationship between body weight and body measurementtraits of indigenous Chinese Dagu chickens using path analysis

2017 ◽  
Author(s):  
Rifu Xu ◽  
Thobela Louis Tyasi ◽  
Ning Qin ◽  
Yang Jing ◽  
Fang Mu ◽  
...  
Keyword(s):  
Body Weight ◽  
Path Analysis ◽  
Direct Effect ◽  
Indirect Effect ◽  
Functional Model ◽  
The Body ◽  
Path Coefficient ◽  
Body Measurements ◽  
Slope Length ◽  
Development Workers

The objectives of this study were to establish the direct and indirect effects of the relationship between body weight and body measurements on both sexes of the indigenous Chinese Dagu chicken and to develop a functional model for predicting body weight using different body measurements. The path analysis in female chickens revealed that shank length has the highest direct effect (path coefficient=0.233) on body weight and pelvis width showed higher indirect effect on body weight via shank length. In male chickens, the path analysis showed that body slope length has the highest direct effect (path coefficient=0.120) on the body weight of indigenous Chinese Dagu chickens, while fossil bone length has the highest indirect effect on body weight via body slope length. The equations could serve as a useful practical tool for livestock farmers, researchers and rural development workers for body weight estimation in the field and for selection purposes.

scholarly journals Correlation and path coefficient analysis of mango (Mangifera indica L.)

2012 ◽  
Vol 37 (3) ◽  
pp. 493-503 ◽  
Author(s):  
DAN Majumder ◽  
L Hassan ◽  
MA Rahim ◽  
MA Kabir
Keyword(s):  
Path Analysis ◽  
Direct Effect ◽  
Significant Positive Correlation ◽  
Fruit Set ◽  
Fruit Weight ◽  
Path Coefficient ◽  
Direct Effects ◽  
Fruit Length ◽  
Positive Direct ◽  
Perfect Flower

Sixty diverse genotypes of mango were selected from the Germplasm Centre of BAU during December 2007–August 2009 to determine the genotypic and phenotypic correlation along with their direct and indirect effects through path coefficients analysis in mango as to estimate the contribution of most important characters towards yield. It appeared that in most of the cases, the genotypic correlation values were higher than their corresponding phenotypic values. This suggests that there were strong inherent relationship between the traits. Percent flowering shoot had significant positive correlation with inflorescence per shoot, percent perfect flower, percent initial fruit set, number of fruits per plant and fruit weight both at phenotypic and genotypic levels. Fruit yield is determined by some components. The residual effects of genetic and phenotypic path analysis were 0.209 and 0.385, respectively, revealed higher genetic variability and also proved lower percent of environmental influence on the selected ten characters. In genotypic path analysis, number of fruits per plant had the highest positive direct effect (0.899) on yield. Higher positive direct effects were also observed for the characters inflorescence per shoot (0.539), percent perfect flower (0.816), and percent initial fruit set (0.292), and fruit weight (0.324). Leaf area, percent flowering shoot, number of fruits per plant, and fruit length showed negative direct effects towards yield. In phenotypic path analysis, except percent flowering, shoot per plant and fruit length and other characters also exhibited similar trend on yield as genotypic path coefficient. In combination with correlation coefficient and path analysis, it was found that number of fruits per plant and percent perfect flower gave significant positive correlation coefficients with yield and also produce the high positive direct effect. Thus, it was clear that plant height, inflorescence per shoot, percent perfect flower, percent initial fruit set per inflorescence, and fruit weight are the major component of fruit yield in mango. Bangladesh J. Agril. Res. 37(3): 493-503, September 2012 DOI: http://dx.doi.org/10.3329/bjar.v37i3.12126

scholarly journals Path coefficient analysis of quality of two-row spring barley

Genetika ◽  
2013 ◽  
Vol 45 (1) ◽  
pp. 21-30
Author(s):  
Novo Przulj ◽  
Vojislava Momcilovic ◽  
Jovan Crnobarac
Keyword(s):  
Path Analysis ◽  
Correlation Coefficient ◽  
Direct Effect ◽  
Malting Quality ◽  
Path Coefficient ◽  
Malt Extract ◽  
Path Coefficient Analysis ◽  
Simple Correlation ◽  
Component Trait ◽  
Component Traits

Malting quality is composed of numerous interacting traits with a high complexity concerning their biochemical and genetic basis. Malt extract is key indicator of barley malting quality and it is a mega-trait since it is influenced by a number of independent component traits. Understanding genetic and non-genetic factors that effects grain quality and grain yield is crucial in developing new cultivars, seed and mercantile production. Path analysis is one of the reliable statistical techniques which allow separation of the direct effect of each component trait on malt quality from the indirect effects caused by the interdependence component trait. The aim of this study was to investigate spring two-row barley quality as mega-trait depending on the component traits in the conditions of the Pannonian environments. Regression analysis with extract (EXT) as dependant and other traits (yield-YIL, test weight-TW, grain weight-GW, grading-GRA, grain protein concentration-GPC, viscosity-VIS, Kolbach index-KOL, Hartong number-HAR) as independent traits was performed out. Simple coefficient of correlations were calculated between independent traits and EXT in all pair combination and then used as inputs for path coefficient analysis. The quadratic curve fitted the best relationship between EXT and the independent traits. EXT was in positive (P<0.01) relationship with GW, GRA, KOL, and HAR with simple correlation coefficient of 0.47, 0.42, 0.39 and 0.50, respectively and in negative (P<0.01) relationship with GPC and VIS with simple correlation coefficient of -0.72 and -0.51, respectively. Path analysis explained more than 70% of the variation in EXT of which 34.3% was determined by direct negative path coefficient (P<0.01) of GPC without significant any indirect path effect. VIS negatively directly, (P<0.01) and negatively indirectly via GPC effected EXT. KOL did not have significant direct effect on EXT, but had rather prominent indirect effect via GPC, VIS and HAR. HAR positively directly (P<0.01) and positively indirectly via GPC effected EXT. The direct effect of VIS and HAR determined 13.0% and 14.1% of the variation, respectively.

scholarly journals Correlation and path coefficient analysis in advanced wheat genotypes

2017 ◽  
Vol 15 (1) ◽  
pp. 1-12 ◽  
Author(s):  
DK Ayer ◽  
A Sharma ◽  
BR Ojha ◽  
A Paudel ◽  
K Dhakal
Keyword(s):  
Grain Yield ◽  
Path Analysis ◽  
Direct Effect ◽  
Harvest Index ◽  
Wheat Crop ◽  
Path Coefficient ◽  
Lattice Design ◽  
Biological Yield ◽  
Level Of Significance ◽  
Positive Direct

A field experiment was conducted in alpha lattice design in subtropical region of Nepal in the wheat crop to determine the association between yield and yield attributing traits through correlation and path analysis. The result showed highly significant variations among the genotypes for all the traits under study. Simple correlation coefficients revealed that the association of grain yield with biological yield followed by harvest index, plant height, thousand grain weight and Area Under SPAD Retread Curve (AUSRC) at anthesis were positive and highly significant (at 1% level of significance). The positive and significant (at 5% level of significance) association of grains per spike followed by flag leaf area with grain yield was also found. Path analysis showed that biological yield and harvest index had the highest positive direct effect on grain yield. While other traits contribute to the grain yield significantly indirectly via biological yield and harvest index. This suggests that biological yield and harvest index having significant positive correlation and high direct effect on grain yield explained the true relationship and the direct selection of the genotypes through these traits is effective for improving yield potentiality.SAARC J. Agri., 15(1): 1-12 (2017)

scholarly journals Pengaruh Penempatan dan Motivasi Kerja terhadap Kepuasan Kerja dan Kinerja Guru di Madrasah Aliyah Se-Kabupaten Jember

2020 ◽  
Vol 1 (3) ◽  
pp. 229-241
Author(s):  
Nur Rohim ◽  
Khotibul Umam
Keyword(s):  
Job Satisfaction ◽  
Path Analysis ◽  
Direct Effect ◽  
Indirect Effect ◽  
Total Population ◽  
Work Motivation ◽  
Teacher Performance ◽  
Sampling Technique ◽  
Path Coefficient ◽  
Purposive Sampling

Penelitian ini bertujuan untuk mengetahui pengaruh penempatan dan motivasi kerja terhadap kepuasan kerja dan kinerja guru di Madrasah Aliyah Se-Kabupaten Jember. Jumlah populasi 97 Madrasah dengan rincian tiga Madrasah Aliyah Negeri dan 94 Madrasah Aliyah Swasta. Jumlah sampel sebanyak enam madrasah dengan 100 responden. Teknik pengambilan sampel menggunakan purposive sampling. Metode penelitian menggunakan pendekatan kuantitatif jenisnya regresi. Pengumpulan data menggunakan teknik observasi, angket dan dokumen-dokumen. Analisis data menggunakan Path Analyisis. Data diolah dengan menggunakan program SPSS 16 for Windows. Penelitian sampai pada simpulan: Koefisien jalur pertama, penempatan berpengaruh positif dan signifikan terhadap kepuasan kerja guru serta kepuasan kerja guru juga berpengaruh positif dan signifikan terhadap kinerja guru. Jadi pengaruh langsung  penempatan terhadap kinerja guru lebih efektif dari pada melalui kepuasan kerja. Koefisien jalur kedua, motivasi kerja berpengaruh tidak langsung terhadap kinerja guru. Akan tetapi motivasi berpengaruh positif dan signifikan terhadap kepuasan kerja. Jadi pengaruh motivasi kerja terhadap kinerja guru dapat melalui kepuasan kerja guru. Kata Kunci: penempatan, motivasi kerja, kepuasan kerja, kinerja guru This study aims to determine the effect of placement and work motivation on job satisfaction and teachers' performance in Madrasah Aliyah throughout Jember Regency. The total population is 97 madrasas consisting of three States and 94 private Madrasah Aliyahs. There are 100 research respondents incorporating six madrasahs in total. The sampling technique used was purposive sampling. This study used a regression type of quantitative approach. Data were collected through observation, questionnaires, and documentation, and then analyzed by using Path Analysis. The data were processed using SPSS 16 for Windows. Based on the results of the analysis and discussion, it can be concluded that; the first Path Coefficient, the placement, has a positive and significant effect on teachers' job satisfaction and the job satisfaction itself also has a positive and significant effect on teachers' performance. Hence, the direct effect of placement on teacher performance is more effective than job satisfaction. The second path coefficient, work motivation, has an indirect effect on teachers' performance. However, motivation has a positive and significant effect on job satisfaction. Therefore, the influence of work motivation on teachers' performance can be measured through teachers' job satisfaction.

The Effect of Organizational Culture, Job Satisfaction and Achievement Motivation on Teacher Work Commitments in Junior High School of Teladan Timur in Medan

2018 ◽  
pp. 196-209
Author(s):  
Rosmay Indah Sinaga ◽  
Paningkat Siburian ◽  
Wildansyah Lubis
Keyword(s):  
Job Satisfaction ◽  
Organizational Culture ◽  
Organizational Commitment ◽  
Path Analysis ◽  
Achievement Motivation ◽  
Direct Effect ◽  
Research Method ◽  
Path Coefficient ◽  
Direct Influence ◽  
Positive Direct

This study aims to describe and know: (1) the influence of organizational culture on job satisfaction; (2) the influence of organizational culture on achievement motivation; (3) the influence of organizational culture to organizational commitment; (4) the influence of job satisfaction to organizational commitment; and (5) the influence of achievement motivation to the organizational commitment of SMP Negeri Teladan Timur subdistrict and City of Medan. The research method used is survey method that is exploratory. The research method used is quantitative method with path analysis model. The number of respondents as many as 143 people taken with Random Proportional Sampling. Research instrument in the form of questionnaire, is data analysis through path analysis and previously there is data normality test with Kolmogrof-Smirnov Test (Z), linearity test and regression significance with Variance Analysis at significance level &alpha; equal to 0,05. The results of this study were found: (1) there was a positive direct effect of organizational culture on job satisfaction with path coefficient &rho;21 = 0,83, with influence of 69%; (2) there is a direct positive influence of organizational culture on achievement motivation with path coefficient &rho;31 = 0,79 with influence of 62%; (3) there is a positive direct influence of organizational culture on organizational commitment with path coefficient &rho;41 = 0,27 with influence 7%; (4) there is a positive direct effect of job satisfaction on organizational commitment with path coefficient &rho;42 = 0,43 with its influence equal to 18%; (5) there is a positive direct influence of achievement motivation toward organizational commitment with path coefficient &rho;43 = 0,24 with influence 5,8%. The higher the influence of organizational culture, job satisfaction, and achievement motivation of teachers, the higher also in affecting the commitment of teacher organization SMP Negeri Teladan Timur subdistrict Medan City

scholarly journals THE INFLUENCE OF ORGANIZATIONAL CULTURE, WORK COMPETENCE AND COMPENSATION TOWARDS THE PERFORMANCE OF THE HEAD OF MADRASAH TSANAWIYAH IN DELI SERDANG DISTRICT

2020 ◽  
Vol 1 (3) ◽  
pp. 27-50
Author(s):  
Amiruddin Amiruddin ◽  
Benyamin Situmorang ◽  
Zainuddin Zainuddin
Keyword(s):  
Organizational Culture ◽  
Path Analysis ◽  
Direct Effect ◽  
Total Sample ◽  
Significance Test ◽  
Research Data ◽  
Path Coefficient ◽  
Workers Compensation ◽  
Direct Influence ◽  
Normality Test

This study aims to address the problems of the eleven hypotheses proposed, which include 1) the direct influence of organizational culture on compensation, 2) the direct effect of work competence on compensation, 3) the direct influence of organizational culture on the performance of the madrasa head, 4) the direct effect of work competence on performance madrasah head, 5) direct effect of compensation on madrasa head performance. The population of this study was the Head of Madrasas as many as 133 people with a total sample of 103 people taken using the Krejcie and Morgan tables. The research instrument was a questionnaire with a Likert scale and tests. The research data is processed and analyzed by path analysis path analysis. This path analysis begins by testing the analysis requirements including the normality test through the Lilifors formula, and the linearity and regression significance test. The results of the analysis show there is a direct influence of organizational culture on compensation with a path coefficient of 0.285, a direct effect of work competence on compensation with a path coefficient of 0.286, Likewise, there is a direct effect of organizational culture on the performance of madrasah heads with a path coefficient of 0.216, there is a direct influence of work competence on the performance of madrasa head with a path coefficient of 0.171, there is a direct effect of workers compensation on the performance of the madrasa head with a path coefficient of 0.178. This study aims to address the problems of the eleven hypotheses proposed, which include 1) the direct influence of organizational culture on compensation, 2) the direct effect of work competence on compensation, 3) the direct influence of organizational culture on the performance of the madrasa head, 4) the direct effect of work competence on the headmaster's performance, 5) the direct effect of compensation on the headmaster's performance. The population of this study was the Head of Madrasas as many as 133 people with a total sample of 103 people taken using the Krejcie and Morgan tables. The research instrument was a questionnaire with a Likert scale and tests. The research data is processed and analyzed by path analysis. This path analysis begins by testing the analysis requirements including the normality test through the Lilifors formula, and the linearity and significance test of regression. The results of the analysis show there is a direct influence of organizational culture on compensation with a path coefficient of 0.285, a direct effect of work competence on compensation with a path coefficient of 0.286, Likewise, there is a direct effect of organizational culture on the performance of madrasas head with a path coefficient of 0.216, there is a direct influence of work competence on the performance of madrasa head with a path coefficient of 0.171, there is a direct effect of workers compensation on the performance of the madrasa head with a path coefficient of 0.178.

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