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

Author(s):  
Rifu Xu ◽  
Thobela Louis Tyasi ◽  
Ning Qin ◽  
Yang Jing ◽  
Fang Mu ◽  
...  

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.

2015 ◽  
Vol 44 (1) ◽  
pp. 1-9 ◽  
Author(s):  
A Yakubu ◽  
MM Muhammed ◽  
MM Ari ◽  
IS Musa-Azara ◽  
JN Omeje

The study aimed at describing objectively the interdependence between body weight (BWT) and morphometric traits in Khaki Campbell and Pekin ducks using multivariate path analysis technique. Measurements were taken on one hundred and ninety seven (197) randomly selected 10-week old Khaki Campbell and Pekin ducks, respectively in Plateau State, Nigeria. The birds were reared on deep litter in a semi-intensive system where they were kept in a fenced area provided with water ponds and locked up in the poultry house during the night. The body parts measured were, body length (BDL); thigh length (THL); thigh circumference (THC); breast circumference (BTC); bill length (BLL); neck length (NKL); neck circumference (NKC); shank length (SHL); shank width (SHW); total leg length (TLL) and wing length (WL). General linear model was used to study genotype and sex effects. Pekin ducks had a superior advantage (p<0.05) over their Khaki Campbell counterparts in all the body parameters estimated. Sexual dimorphism (p<0.05) was in favour of male ducks.  Pairwise phenotypic correlations between BWT and morphometric traits were positive and significant (p<0.01), ranging from 0.38-0.95 and 0.35-0.92 for Khaki Campbell and Pekin ducks, respectively. Path analysis revealed that BDL was the variable of utmost importance directly influencing BWT in male Khaki Campbell and Pekin ducks (path coefficient=0.535 and 0.508, respectively; p<0.01) while BTC and SHL were the most responsible parameters affecting BWT in female Khaki Campbell and Pekin ducks [path coefficient=0.594 (P<0.01) and 1.197 (p<0.05), respectively]. The optimum regression models for the prediction of BWT in Khaki Campbell ducks included BDL, SHL, BTC and NKC (male)  and BDL, WNL and BTC (female); while in their Pekin counterparts, BDL, BLL and BTC (male) and BDL and SHL (female) were incorporated.DOI: http://dx.doi.org/10.3329/bjas.v44i1.23112            Bang. J. Anim. Sci. 2014. 44 (1): 1-9


Author(s):  
N. S. Machebe ◽  
A. G. Ezekwe ◽  
G. C. Okeke ◽  
S. Banik

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.


2012 ◽  
Vol 28 (1) ◽  
pp. 107-117 ◽  
Author(s):  
A. Yakubu ◽  
G.L. Mohammed

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.


2020 ◽  
Vol 1 (3) ◽  
pp. 229-241
Author(s):  
Nur Rohim ◽  
Khotibul Umam

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.


2017 ◽  
Vol 12 (1) ◽  
pp. 29-44
Author(s):  
I Kade Sanjana Duaja

The study investigated the effect of social economic status, individual modernity, life style towards farmer’s participation in continuation of cultural value. Data on strategy use is gathered through a questionnaire (n=250) and analyzed by using Path Analysis. Results show that there status and farmer’s participation. There is direct effect between individual modernity and farmer’s participation. There is not indirect effect between social economic status through life style and farmer’s participation. There is indirect effect between individual modernity and life style towards participation in continuants of culture value. Economic status, individual modernity and life style are determined factors of cultural value of community.


Author(s):  
Luh Ade Yumita Handriani ◽  
Sudarsana Arka

This study aims to analyze the impact of the BPNT program on household consumption and consumption patterns of BPNT recipient households in Mengwi District, Badung Regency. This research was conducted in Mengwi District, Badung Regency using a questionnaire distributed to respondents with a large sample size of 96 KPM. This study uses path analysis techniques to analyze the direct effect and Sobel test to analyze the indirect effect. Based on path analysis, the results of the study concluded that the BPNT variable had a positive and significant effect on the consumption of BPNT recipient households in Mengwi District, Badung Regency. The BPNT variable has no effect on the consumption pattern of BPNT recipient households in Mengwi District, Badung Regency. The household consumption variable has a negative and significant effect on the consumption pattern of BPNT recipient households in Mengwi District, Badung Regency. The household consumption variable did mediate the effect of the BPNT Program on the consumption pattern of BPNT recipient households in Mengwi District, Badung Regency


Author(s):  
Zuma Nayyir ◽  

This study aims to determine the effect of arm length, hand-eye coordination, and arm-toe coordination on the bowling ability of male cricket athletes in Jakarta. Data collection was carried out in early January 2021, which took place at the campus of the Jakarta State University Cricket Arena. The method of research used in this research is survey method with path analysis technique or path analysis. The sample used in this study amounted to 18 people who came from the male Cricket Athlete in Jakarta. The first test that was carried out was measurement of arm length. Then proceed with a test of eye-eye coordination, arm power and bowling ability for male cricket athletes in DKI Jakarta. The hypothesis testing technique used in this study is to use path analysis techniques. The data that has been obtained aka n through a process of analysis of the data through SPSS. The results of this study are: 1) the direct effect of variable X1 on Y (X1  Y) or (r1y) = -0,245. So the effect of arm length (X1) directly affects bowling ability (Y) of -0.245 or -24.5%. 2) The direct effect of variable X2 on Y (X2 Y) or (r2y) = 0.535. So the effect of eye-hand-foot coordination (X2) directly affects bowling ability (Y) by 0.535 or 53.5%. 3) The direct effect of variable X3 on Y (X3  Y) or (r3y) = 0.457. So the effect of arm power (X3) directly affects the bowling ability (Y) of 0.457 or 45.7%. 4) The direct effect of variable X1 on X3 (X1  X3) or (r13) = 0.552. So the effect of arm length (X1) directly affects arm power (X3) by 0.552 or 55.2%. 5). The direct effect of variable X2 on X3 (X2  X3) or (r23) = 0.407. So the effect of hand-eye coordination (X2) directly affects arm power (X3) by 0.407 or 40.7%. 6) The indirect effect of variable X1 on Y through X3 (X1  X3  Y) or (r13y) = 0.552x0.457 = 0.253. So the effect of arm length (X1) indirectly affects bowling ability (Y) through arm power (X3) by 0.253 or 25.3%. 7) The indirect effect of variable X2 on Y through X3 (X2  X3  Y) or (r23y) = 0.407x0.457 = 0.186. So the effect of hand eye coordination (X2) indirectly affects bowling ability (Y) through arm power (X3) by 0.186 or 18.6%.


2021 ◽  
Vol 10 (1) ◽  
Author(s):  
Oumer Sheriff ◽  
Kefyalew Alemayehu ◽  
Aynalem Haile

Abstract Background An exploratory field research was conducted in northwestern Ethiopia, to characterize the morphological features of Arab and Oromo goat populations as an input to design community-based breeding programs. Ten qualitative and nine quantitative traits were considered from 747 randomly selected goats. All data collected during the study period were analyzed using R statistical software. Results Plain white coat color was predominantly observed in Arab goats (33.72%) while plain brown (deep and light) coat color was the most frequent in Oromo goats (27.81%). The morphometric measurements indicated that Oromo goats have significantly higher body weight and linear body measurements than Arab goats. Positive, strong and highly significant correlations were obtained between body weight and most of the body measurements in both goat populations. The highest correlation coefficients of chest girth with body weight for Arab (r  =  0.95) and Oromo (r  =  0.92) goat populations demonstrated a strong association between these variables. Live body weight could be predicted with regression equations of y  =  − 33.65  +  0.89  ×  for Arab goats (R2  =  90) and y  =  − 37.55  +  0.94  ×  for Oromo goats (R2  =  85), where y and x are body weight and chest girth, respectively, in these goat types. Conclusions The morphological variations obtained in this study could be complemented by performance data and molecular characterization using DNA markers to guide the overall goat conservation and formulation of appropriate breeding and selection strategies.


Animals ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 963 ◽  
Author(s):  
Dariusz Kokoszyński ◽  
Rafał Wasilewski ◽  
Mohamed Saleh ◽  
Dariusz Piwczyński ◽  
Henrieta Arpášová ◽  
...  

Native breeds of ducks have been the subject of many studies in the past, yet the relevant knowledge is still incomplete and needs to be further expanded. The objective of this study was to provide information about differences in growth performance, dressing percentage, carcass composition and digestive morphometry among three lines of Pekin ducks from conservation flocks raised in Poland. The study used 180 sexed Pekin ducks—30 males and 30 females of line P33 (ducks of Polish origin), 30 males and 30 females of line P8 (ducks of Danish origin), and 30 males and 30 females of line P9 (ducks of French origin). Throughout the study (49 d), ducks were confined indoors in six pens. Birds were fed complete commercial diets ad libitum and had unrestricted access to water. The compared lines of ducks differed significantly in body weight from 1 to 49 d of age except of ducks of both sexes at 14 d. At 49 d of age, significant differences were observed between the tested ducks in all the body measurements. Duck genotype had a significant effect on preslaughter body weight, carcass weight and breast muscle, neck and remainders contents, caeca length, liver weight and gizzard percentage. The results show that the tested ducks were significantly different and unique, mainly in terms of the body biometric characteristics.


2013 ◽  
Vol 5 (1) ◽  
pp. 104-108 ◽  
Author(s):  
Kaosar BARDIDEH ◽  
Danial KAHRIZI ◽  
Mohammad E. GHOBADI

Character association and path analysis were performed for black seed cultivars using a split-plots design based on RCBD with three replications. Three cultivars (‘Varzaneh’, ‘Semirom’ and ‘Mobarakeh’) were studied under three levels of irrigation (normal irrigation, irrigation with drought stress before and after flowering). Under normal and abnormal irrigations the relation of seed yield and three characters biological yield, number of capsule per plant and thousand seed weight were high, positive significantly (p≤0.01); the relation between yield and number of sub branch was positive significantly (p≤0.05). In terms of abnormal irrigation there was a positive significant correlation between essence percent and yield (p≤0.05). Under normal irrigation the most direct effect of traits on yield was obtained from biological yield (0.778) followed the number of capsules per plant (0.245). The most indirect effect of traits on yield was obtained from biological yield through thousand seed weight (0.576) followed stem diameter through biological yield (0.468). Under water deficiency conditions the most direct effect of traits on yield was obtained from biological yield (0.811) followed the number of capsules per plant (0.231). The most indirect effect of traits on yield was obtained from biological yield through thousand seed weight (0.562).


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