Path Coefficient and path analysis of body weight and biometric traits in Male Capoeta trutta (Heckel, 1843) in Alvand River of Kermanshah Province,(West of Iran)
Journal Title: International Journal of Farming and Allied Sciences - Year 2013, Vol 2, Issue 23
Abstract
The objective of this study was to verify which morphometric measures are more directly associated with the Body weight of male Capoetatrutta A 126samples of male C. truttafrom Alvand River with average body weight 314.65 g ± 11.00,were caught, weighed and their morphometric characteristics were measuted. The morphometric measures taken were: body weight (BW g), total length (TL mm), standard length (SL mm), fork length (FL mm), body height (BH mm), body width (BD mm), head length (HL mm) and snout length (SNL mm).The phenotypic correlations analysis between bodyweight and morphometric measurements showed that theTL(0.986**), SL (0.987**),FL (0.985**), BH (0.995**), BD (0.967**), SNL (0.916**) and HL (0.967**), had a significant (P<0.01) positive correlation with body weight. These correlations were later deployed in direct and indirect effects through path analysis,and the direct and indirect contributions of each variable were measured in terms of percentage. The positive highest direct effect values for body weight were SL (5.875), HL (2.688) and BD (1.033) and The highest negative direct effect value for body weight were TL (-4.821), SNL (-2.016), FL (-1.50) and BH (-0.328).The positive highest indirect Sums of effect value for body weight were TL (5.81), SNL (2.93), FL (2.49) and BH (1.32) and The highest negative indirect effect value for body weight were SL (-4.89), HL (-1.72) and BD (-0.07). the highest direct percentage values for body weight were BD (94.00%), HL (60.94%) and SL (54.59%). the highest indirect percentage values for body weight were BH (80.13%), FL (62.36%), SNL (59.52%) and TL (54.64%).indicating thatstandard length, head length and body width measurements were important for determining the body weight of male Capoetatruttabut, the total length, fork length and snout length had indirect effect in body weight by standard length.
Authors and Affiliations
Mojtaba Poria, Fathali Nouri, Amir Veisi, Mohsen Karamy and Tayebeh Asadi
Keywords
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