scholarly journals Path coefficient model for assessment of weight using linear traits at birth and at weaning in Nigerian indigenous pig

2014 ◽  
Vol 30 (2) ◽  
pp. 281-288
Author(s):  
D.M. Ogah ◽  
N.D. Yusuf ◽  
M.M. Ari
Keyword(s):  
Body Weight ◽  
Correlation Coefficient ◽  
Body Length ◽  
Direct Effect ◽  
Bone Development ◽  
Live Weight ◽  
Path Coefficient ◽  
Explanatory Variables ◽  
Indigenous Pigs ◽  
Intensive System

Direct and indirect effects of some explanatory variables ((body length (BL), rump height (RH), rump length (RL) , rump width (RW) , shoulder width (SW), wither height (WH), heart girth (HG) and flank length (FL)) influence on live weight at birth and at weaning in Nigerian indigenous pigs, managed under semi intensive system were investigated using path analysis. Results of the analysis indicated that the correlation coefficient between body weight and body length at birth was highest (0.59) while at weaning, rump width had the highest correlation coefficient with body weight (0.60). The relationships were from low to high. The direct effect of linear traits to body weight at birth were highest with wither height and flank length similarly heart girth and rump length had better direct effect on body weight at weaning than other linear traits. The findings show that there is variability in relationship between body weight and linear traits with age, similarly both tissues and bone development play significant role in weight determination in the indigenous pigs. Thus selection for weight increase at adult phase can better be achieved at weaning, providing direction for selection towards increase weight in indigenous pigs.

scholarly journals Bafra Koyun ve Kuzularının Biyometrik Özelliklerinin İncelenmesi

2019 ◽  
Vol 7 (10) ◽  
pp. 1710
Author(s):  
Sezen Ocak Yetişgin
Keyword(s):  
Body Weight ◽  
Path Analysis ◽  
Correlation Coefficient ◽  
Body Length ◽  
Pearson Correlation ◽  
Live Weight ◽  
Chest Circumference ◽  
Pearson Correlation Coefficient ◽  
Weight Estimation

The aim of this study was to compare the effects of biometric properties of Bafra sheep and lambs such as chest depth, chest width, chest circumference, rump height, height at withers, body length and body weight. Relationships were determined by Pearson correlation coefficient and Path analysis. As a result, it has been shown that biometric properties of Bafra sheep and lambs provide different results on live weight estimation. In addition, the relationships between biometric properties were not similar (r = -0.16).

scholarly journals Biometrical Relationship between Body Weight and Body Measurements of Black Bengal Goat (BBG)

2019 ◽  
pp. 1-7
Author(s):  
Md. Ahsan Habib ◽  
Ambia Akhtar ◽  
A. K. Fazlul Haque Bhuiyan ◽  
Md. Panir Choudhury ◽  
Most Farhana Afroz
Keyword(s):  
Body Weight ◽  
Correlation Coefficient ◽  
Body Length ◽  
Live Weight ◽  
Regression Equation ◽  
Baseline Survey ◽  
Regression Equations ◽  
Body Measurements ◽  
Body Weights ◽  
Chest Girth

Aims: To develop regression equations for estimation of live weight from the external morphological measurements. Study Design: CRD with non-orthogonal hierarchy. Place and Duration of Study: This study was carried out at 3 rural village communities of Bhaluka Upazila in Mymensingh district of Bangladesh from 2009 to 2013. Methodology: All animals were ear-tagged and maintained under semi-intensive management system with scheduled vaccination and de-worming. Data were collected from a baseline survey along with 3 progressive generations produced from the community foundation stocks. Body length, chest girth, wither height, hip height and body weights were measured in a same day and recorded individually from birth up to 15 month age. Body weights were measured in kilogram by a hanging spring balance and other morphological parameters were measured in centimeter by a measuring tape. The data were analyzed by "SPSS 17.0" statistical program. Results: A total of seven regression models were adopted and analysis of variance showed that all models were fitted significantly (p<0.001). The correlation coefficient was higher when multiple body measurements were included in the model. The study also revealed that when chest girth as a single body measurement was included in the model gave the highest correlation coefficient (R=0.92). For including multiple measurements, body length and chest girth are the best external body measures which exposed same correlation coefficient (R2=0.92) when included more than these two body measures in the model. The differences between actual body weight and body weight predicted from regression equation for different ages were less than 1% (p>0.05) and correlation coefficient between weights was 0.92 (p<0.01). Conclusion: There are strong correlations among morphometric body measurements. Thus, body weight can be estimated from a single or multiple body measurements by regression equation. Chest girth is the best single predictor for estimating live body weight with high accuracy.

scholarly journals PENGARUH GAYA KEPEMIMPINAN KEPALA SEKOLAH DAN MOTIVASI TERHADAP KINERJA GURU DI SMK NEGERI KOTA AMBON PROVINSI MALUKU

2020 ◽  
Vol 11 (2) ◽  
pp. 427-441
Author(s):  
Janse Tresia Leimena ◽  
Siti Zulaikha ◽  
Heru Santosa
Keyword(s):  
Correlation Coefficient ◽  
Direct Effect ◽  
Leadership Style ◽  
Random Sampling ◽  
Work Motivation ◽  
Teacher Performance ◽  
Simple Random Sampling ◽  
Survey Method ◽  
Path Coefficient ◽  
Positive Direct

This study aims to prove the relationship between leadership and teacher motivation on performance. . This study uses a survey method with a quantitative approach that explains causal relationships or correlations commonly called path analysis. The survey was conducted from February to May 2019 involving 124 Ambon State Vocational School teachers. The sample in this study used the Slovin formula with an instrument trial of 60 teachers. The sampling technique is determined randomly or simple random sampling. The findings of the research results are as follows (1) The influence of leadership style has a positive direct effect on teacher performance with a correlation coefficient of 0.262 and a path coefficient of 0.233. A good leadership style will have a positive influence on improving teacher performance. (2) Work motivation has a positive direct effect on teacher performance, the correlation coefficient value is 0.179 and the path coefficient value is 0.124. This means that the higher the work motivation that a teacher has will improve his performance. (3) The influence of leadership style has a direct positive effect on work motivation with a correlation value of 0.233 and a path coefficient value of 0.233. This means that a principal's leadership style that is positively constructive will have an impact on increasing the motivation of the work of the teachers. Abstrak Penelitian ini bertujuan untuk membuktikan hubungan antara kepemimpinan dan motivasi guru terhadap kinerja. Penelitian ini menggunakan metode survey dengan pendekatan kuantitatif yang menjelaskan hubungan atau korelasional kausal yang biasa disebut analisis jalur. Survey dilakukan sejak Februari sampai Mei 2019 dengan melibatkan 124 orang guru SMK Negeri Ambon. Sampel dalam penelitian ini menggunakan rumus Slovin dengan uji coba instrument sebanyak 60 guru. Teknik pengambilan sampel ditentukan secara acak atau simple random sampling. Temuan dari hasil penelitan sebagai berikut (1) Pengaruh gaya kepemimpinan berpengaruh langsung positif terhadap kinerja guru dengan nilai koefisien korelasi sebesar 0,262 dan nilai koefisien jalur sebesar 0,233. Gaya kepemimpinan yang baik akan memberi pengaruh yang positif terhadap peningkatan kinerja guru. (2) Motivasi kerja pengaruh langsung positif terhadap kinerja guru, nilai koefisien korelasi sebesar 0,179 dan nilai koefisien jalur sebesar 0,124. Hal ini berarti semakin tingginya motivasi kerja yang dimiliki seorang guru akan meningkatkan kinerja. (3) Pengaruh gaya kepemimpinan berpengaruh langsung positif terhadap motivasi kerja dengan nilai korelasi sebesar 0,233 dan nilai koefisien jalur sebesar 0,233. Hal ini memberi arti bahwa gaya kepemimpinan seorang kepala sekolah yang positif membangun akan memberi dampak kepada peningkatan motivasi kerja para guru.

scholarly journals Teacher Work Productivity in Senior High School

2021 ◽  
Vol 14 (1) ◽  
pp. 599-614
Author(s):  
Purwani Puji Utami ◽  
◽  
Niken Vioreza ◽  
Keyword(s):  
High School ◽  
Job Satisfaction ◽  
Correlation Coefficient ◽  
Direct Effect ◽  
Work Productivity ◽  
Sampling Technique ◽  
Survey Method ◽  
Path Coefficient ◽  
Teacher Work ◽  
Positive Direct

Work productivity of teachers shall determine the advancement of education quality as their direct encounter with students to equip them with skill and competencies. This study was conducted to see the direct effect of job satisfaction and absenteeism on high school teachers’ work productivity in Bekasi region. Survey method with path analysis approach was applied. Questionnaire as the study instrument was distributed to 198 teachers who were chosen based on simple random sampling technique. The study revealed that, first, job satisfaction has a positive direct effect on teacher work productivity. The correlation coefficient value is 0.431, while the path coefficient value is 0.228. It infers that when job satisfaction is fulfilled, work productivity shall increase as well. Second, absenteeism shows a negative direct influence on work productivity. The correlation coefficient value is - 0.427 and the path coefficient value is -0.250. This further implies that productivity and progress of organization are impeded by the absence of teacher. This leads to a notion that teacher lower level of absenteeism will increase their productivity. Third, job satisfaction gives a negative direct impact on absenteeism. The correlation coefficient value is -0.341 and the path coefficient value is -0.207. The result leads to a conclusion that once teachers feel contented with their work, they will rarely perform absenteeism

scholarly journals Correlation of milk intake and body weight with linear body measurements of white Fulani calves in semi-intensive system of management

2020 ◽  
Vol 47 (3) ◽  
pp. 16-21
Author(s):  
B. I. Umoh ◽  
U. M. Okon ◽  
J. S. Ekpo
Keyword(s):  
Body Weight ◽  
Body Length ◽  
Tail Length ◽  
Neck Circumference ◽  
The Body ◽  
Milk Intake ◽  
Body Measurements ◽  
White Fulani ◽  
Linear Body ◽  
Intensive System

Body weight of animals in the rural areas has not been accurately ascertained due to lack of accurate measurement scales, hence this experiment. The study was conducted to determine the correlation between milk intake and body weight with linear body measurements in white Fulani calves raised in semi-intensive system of management. A total of seven (7) white Fulani calves managed semi-intensively was used for the study. The experiment lasted 12 weeks. The overall mean±SEM value for milk intake, body weight, neck circumference, neck length, body length, body circumference, girth circumference, height at wither and tail length were 1.20±0.40g, 5.18±1.02kg, 21.54±0.66cm, 13.23±0.21cm, 28.36±0.31cm, 36.41±0.43cm, 35.84±0.37cm, 35.87±0.43cm and 23.43±0.39cm respectively. There was significant (P<0.05) effect of lactation stage on all body measurements taken except for neck circumference and tail length. Correlation between all body pairs of measurements were high, positive and highly significant (P<0.05). The highest correlation was recorded for body length, body circumference, girth circumference and height at wither. Linear function provided the best fit for milk intake weight and linear body measurements indicating that body measurements can be used for selection and the estimation of body weight in the fields where accurate scales are not usually available. It is recommended that any of the body measurement parameters could be used in the estimation of the body weight. Also, an improvement of non-genetic factor such as nutrition and general husbandry of the animal as much as possible will bring about improvement in the body parameters as well as maintaining the animal's physiological balance.

scholarly journals Correlation between body measurements and milk production of goats in different lactations

2011 ◽  
Vol 27 (2) ◽  
pp. 217-225 ◽  
Author(s):  
M. Zujovic ◽  
N. Memisi ◽  
V. Bogdanovic ◽  
Z. Tomic
Keyword(s):  
Body Weight ◽  
Correlation Coefficient ◽  
Milk Production ◽  
Body Length ◽  
Mountain Range ◽  
Lactation Period ◽  
Body Measurements ◽  
Goat Breed ◽  
Correlation Dependence ◽  
Body Development

This paper presents the results of the variability and correlation of body measurements and milk production of domestic Balkan goat breed that is reared in the mountain range Sharplanina, depending on the lactation. Studied animals were monitored and lactation, or order of kidding (I, II, III and IV and the next lactation together). Control of milk production, included a total of 290 goats in different lactations (first-81 animals, the second-69 heads, 71 heads third-and fourth and following along latkacije-69 heads). In order to determine the measure of body development in adult goats, one takes values for height at withers, body length, chest depth, chest width, the width of the cross and body weight. The variability of the analyzed characteristics is presented descriptive parameters and the effect of lactation is determined by a factorial analysis of variance. The determined average values for milk production and measures of body development are located within those identified for this population of goats. During these tests showed statistically significant correlation dependence (P <0.05) between all studied variables, except when it comes to length lactation period and individual measures of body development. The correlation coefficient between length of lactation and established measures of body development. are low and reflect the existence uncorrelation dependence, and their values range from 0.08 to 0.11, while they were unjustified and statistically (P> 0.05).

Path analysis of body weight in grower and finisher pigs

2016 ◽  
Author(s):  
N. S. Machebe ◽  
A. G. Ezekwe ◽  
G. C. Okeke ◽  
S. Banik
Keyword(s):  
Body Weight ◽  
Path Analysis ◽  
Body Length ◽  
Selection Index ◽  
The Body ◽  
White Female ◽  
Path Coefficient ◽  
Large White ◽  
Entire Study ◽  
Biometric Measurements

The aim of this study was to set up direct and indirect casual effects between body weight and biometric measurements of breeding gilts at growing and finishing stages of production using path analysis. Body weights of 50 crossbred (Landrace x Large White) female pigs were measured along with four biometric traits (body length, heart girth, flank-to-flank, height-at-withers) on each animal during growing and finishing stages of production. A computed mean of 1150 measurements per biometric trait taken during the entire study was subjected to path coefficient analysis using the correlation matrix approach. High positive and significant correlations (>84.3%) were observed between different biometric measurements. However, path analysis of these traits on body weight of pigs revealed that heart girth is the major contributor to the body weight of the pig with a higher amount of direct effect of 0.6539 (R2 = 95.25). The direct effects of body length and flank-to-flank measurements on body weight of the pigs were less. These traits mostly affect body weight indirectly via heart girth. Finding of the present investigation demonstrated that heart girth was the most important contributor to body weight of grower and finisher pigs and thus was recommended for quick estimation of body weight of breeding gilts under field or market conditions than other biometric traits. In addition, it could also be used for the construction of selection index for breeding gilts at both phases of growth.

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.

Prediction of body dimensions of Mule and Scottish Blackface ewes from measurement of body weight

1990 ◽  
Vol 50 (3) ◽  
pp. 491-495 ◽  
Author(s):  
T. J. Sharples ◽  
J. Dumelow
Keyword(s):  
Body Weight ◽  
Head And Neck ◽  
Body Length ◽  
Live Weight ◽  
The Body ◽  
Head Length ◽  
Neck Length ◽  
Body Dimensions ◽  
Biological Basis ◽  
Weight Range

ABSTRACTThe body dimensions and live weight of 126 Mule (Bluefaced Leicester × Scottish Blackface) and Scottish Blackface ewes were measured during the 1986/87 housing season. Body dimensions included: head and neck length, body length, diagonal body length, height to withers, height to rump, girth at widest point, heart girth, width at widest point and width at shoulders. It was found that most body dimensions varied greatly with body weight. However, some body dimensions such as head length were found to be independent of weight within the weight range studied. Prediction equations are presented for each body dimensions for unshorn sheep.These predictions can be used as a basis for the design of sheep housing, for example, trough space allowances, design of feeders or as a biological basis for space allowance.

scholarly journals Development of testicular dimensions and size, and their relationship to age and body weight in growing Kivircik (Western Thrace) ram lambs

2011 ◽  
Vol 50 (No. 6) ◽  
pp. 243-248 ◽  
Author(s):  
M. Koyuncu ◽  
S. Kara Uzun ◽  
S. Ozis ◽  
S. Duru
Keyword(s):  
Body Weight ◽  
Least Squares ◽  
Live Weight ◽  
Body Growth ◽  
Ram Lambs ◽  
Birth Type ◽  
Intensive System

Forty-seven Kivircik ram lambs, aged 2 months, raised and managed under an intensive system were used to measure the development of testis diameter and length, and scrotum circumference, length and volume, and their association with the development of body growth. The effects of age and body weight of lambs, type of birth and dam age on the development of the five testicular parameters from weaning at 2&ndash;6 months of age were investigated. In ram lambs, the respective least-squares means of testis measurements: testis diameter, testis length, scrotum circumference, scrotum length and scrotum volume were 2.55 &plusmn; 0.099 cm, 5.83 &plusmn; 0.165 cm, 15.23&nbsp;&plusmn; 0.650&nbsp;cm, 7.24 &plusmn; 0.287 cm and 87.57 &plusmn; 5.921 cm<sup>3 </sup>at 2 months; and 2.99 &plusmn; 0.099 cm, 6.59 &plusmn; 0.164 cm, 14.24&nbsp;&plusmn; 0.657 cm, 10.60 &plusmn; 0.290 cm and 157.49 &plusmn; 5.987 cm<sup>3</sup> at 6 months. The effect of birth type on testis diameter and the effect of dam age on testis length were significant (P &lt; 0.05 and P &lt; 0.01), besides the effects of lamb age and live weight of lambs on the whole testis measurements were significant (P &lt; 0.01). &nbsp;

Sign in / Sign up

Export Citation Format

Share Document