scholarly journals Keragaman Sifat Kualitatif pada Sapi Silangan PO dan Belgian Blue Menggunakan Analisis Komponen Utama

2020 ◽  
Vol 7 (1) ◽  
pp. 15
Author(s):  
Jakaria Jakaria ◽  
Fuadi Zulkipli ◽  
Edwar Edwar ◽  
Mokhamad Fakhrul Ulum ◽  
Rudy Priyanto
Keyword(s):  
Principal Component Analysis ◽  
Cattle Breed ◽  
Principal Component ◽  
Component Analysis ◽  
Body Color ◽  
Qualitative Traits ◽  
Cattle Breeds ◽  
Double Muscle ◽  
Tail Tip ◽  
Distinguishing Character

The purpose of this study was to determine the diversity of qualitative traits in PO, Belgian Blue and PO-Belgian Blue crosses using principal component analysis. The total samples of cattle used were 36 consisting of 8 heads Belgian Blue (4 males and 4 females), 17 heads Belgian PO-Belgian cross-breed (11 males and 6 females) and 11 PO heads (all females)). The diversity of qualitative traits observed were 17 characteristics namely plain body-color (WTP), combination body-color (WTK), horned (MT), humped (MP), sagging (MG), black tail tip color (WUEH), white tail tip color (WUEH), black eyelash color (WBMH), white eyelash color (WBMP), circle hair head (PRK), circle hair back (PRP), circle hair bracket (PRB), black nail color (WKH), nail color white (WKP), double muscle (PG), black muzzle (WMH) and white muzzle (WMP). Qualitative data were analyzed descriptively by calculating the proportion value, while the determinant variables of each breed were analyzed using the principal component analysis method (AKU) with the Minitab version 7 program. The results showed that the characteristics of qualitative traits in PO, Belgian Blue, and PO-Belgian Blue cross-breed cattle have a high diversity. PO and Belgian Blue cattle breeds can be clearly distinguished based on the characteristics of qualitative traits, whereas PO-Belgian Blue crossbred cattle have clusters that are close to PO cattle clusters. Found character traits for each cattle breed in both PO, Belgian Blue, and PO-Belgian Blue cross-breed. There are three characteristics of qualitative traits possessed in each cow nation, namely the variable circle hair head (PRK), circle hair back (PRP) and horned characters (MT). Based on the results obtained that the qualitative traits in cattle can be used as a distinguishing character between PO, Belgian Blue, and PO-Blue Belgian cross cattle breeds.

scholarly journals Principal Component Analysis of Some Quantitative and Qualitative Traits in Iranian Spinach Landraces

2017 ◽  
Vol 71 (4) ◽  
pp. 307-310
Author(s):  
Mehdi Mohebodini ◽  
Naser Sabaghnia ◽  
Farhad Behtash ◽  
Mohsen Janmohammadi
Keyword(s):  
Principal Component Analysis ◽  
Principal Components ◽  
Quantitative Traits ◽  
Agronomic Traits ◽  
Principal Component ◽  
Component Analysis ◽  
Leaf Width ◽  
Petiole Length ◽  
Qualitative Traits ◽  
Eigen Values

Abstract Landraces of spinach in Iran have not been sufficiently characterised for their morpho-agronomic traits. Such characterisation would be helpful in the development of new genetically improved cultivars. In this study 54 spinach accessions collected from the major spinach growing areas of Iran were evaluated to determine their phenotypic diversity profile of spinach genotypes on the basis of 10 quantitative and 9 qualitative morpho-agronomic traits. High coefficients of variation were recorded in some quantitative traits (dry yield and leaf area) and all of the qualitative traits. Using principal component analysis, the first four principal components with eigen-values more than 1 contributed 87% of the variability among accessions for quantitative traits, whereas the first four principal components with eigen-values more than 0.8 contributed 79% of the variability among accessions for qualitative traits. The most important relations observed on the first two principal components were a strong positive association between leaf width and petiole length; between leaf length and leaf numbers in flowering; and among fresh yield, dry yield and petiole diameter; a near zero correlation between days to flowering with leaf width and petiole length. Prickly seeds, high percentage of female plants, smooth leaf texture, high numbers of leaves at flowering, greygreen leaves, erect petiole attitude and long petiole length are important characters for spinach breeding programmes.

scholarly journals Multivariate characterization of morphological traits in West African cattle sires

2016 ◽  
Vol 59 (3) ◽  
pp. 337-344 ◽  
Author(s):  
Amadou Traoré ◽  
Delphin O. Koudandé ◽  
Iván Fernández ◽  
Albert Soudré ◽  
Isabel Álvarez ◽  
...  
Keyword(s):  
Cattle Breed ◽  
Principal Component ◽  
West African ◽  
The Body ◽  
Body Measurements ◽  
Qualitative Traits ◽  
Cattle Breeds ◽  
African Cattle ◽  
Type Traits

Abstract. A total of 183 adult sires belonging to nine West African cattle breeds sampled in 67 villages of Mali, Burkina Faso and Benin were assessed for 16 body measurements and 18 qualitative traits. Within type of cattle (zebu, sanga or taurine), the different breeds analysed showed large differences in body measurements. In general, taurine breeds had lower average values than the zebu breeds while sanga cattle tended to have intermediate values. Principal component analysis identified three factors characterising body measurements. Factor 1 summarised the information provided by those traits characterising the size of the individuals and explained 59.0 % of the variability. Factor 2 tended to gather information characterising the body width and explained 8.0 % of the variation. Less representative, Factor 3 (6.6 % of the variability) had no clear interpretation. Qualitative traits did not allow to distinguish among either cattle groups or breeds. Two Correspondence Analysis Dimensions computed on qualitative traits (explaining 26.2 and 15.5 % of the variability, respectively) did not allow to differentiate between zebu, sanga or taurine cattle breeds. Our results confirm that, in the framework of a general appearance, body measurements are the main criteria for differentiating West African cattle breeds. Furthermore, the current research has not allowed to identify breeding preferences on qualitative type traits in West African cattle sires. Therefore, homogenisation of the appearance of individuals within cattle breed is not expected.

A German version of the Intermittent Claudication Questionnaire (ICQ): cultural adaptation and validation

VASA ◽  
2012 ◽  
Vol 41 (5) ◽  
pp. 333-342 ◽  
Author(s):  
Kirchberger ◽  
Finger ◽  
Müller-Bühl
Keyword(s):  
Principal Component Analysis ◽  
Intermittent Claudication ◽  
Completion Time ◽  
Short Form ◽  
Principal Component ◽  
Component Analysis ◽  
German Version ◽  
Average Completion Time ◽  
Sf 36 ◽  
Related Quality

Background: The Intermittent Claudication Questionnaire (ICQ) is a short questionnaire for the assessment of health-related quality of life (HRQOL) in patients with intermittent claudication (IC). The objective of this study was to translate the ICQ into German and to investigate the psychometric properties of the German ICQ version in patients with IC. Patients and methods: The original English version was translated using a forward-backward method. The resulting German version was reviewed by the author of the original version and an experienced clinician. Finally, it was tested for clarity with 5 German patients with IC. A sample of 81 patients were administered the German ICQ. The sample consisted of 58.0 % male patients with a median age of 71 years and a median IC duration of 36 months. Test of feasibility included completeness of questionnaires, completion time, and ratings of clarity, length and relevance. Reliability was assessed through a retest in 13 patients at 14 days, and analysis of Cronbach’s alpha for internal consistency. Construct validity was investigated using principal component analysis. Concurrent validity was assessed by correlating the ICQ scores with the Short Form 36 Health Survey (SF-36) as well as clinical measures. Results: The ICQ was completely filled in by 73 subjects (90.1 %) with an average completion time of 6.3 minutes. Cronbach’s alpha coefficient reached 0.75. Intra-class correlation for test-retest reliability was r = 0.88. Principal component analysis resulted in a 3 factor solution. The first factor explained 51.5 of the total variation and all items had loadings of at least 0.65 on it. The ICQ was significantly associated with the SF-36 and treadmill-walking distances whereas no association was found for resting ABPI. Conclusions: The German version of the ICQ demonstrated good feasibility, satisfactory reliability and good validity. Responsiveness should be investigated in further validation studies.

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