Path Analysis for Body Measurements on Body Weight of Saanen Kids

Bu çalışmanın amacı Path analizi kullanılarak Saanen oğlaklarının canlı ağırlıkları üzerinde bazı vücut ölçümlerinin doğrudan, dolaylı ve toplam etkilerini incelemektir. Bu amaçla canlı ağırlık (BW) ve dört morfolojik-biyometrik özellikleri [Göğüs Çevresi (CG), Cidago Yüksekliği (HW), Sağrı Yüksekliği (HS) ve Vücut Uzunluğu (BL)] arasındaki ilişkiler Path analizi kullanılarak bir aylık yaştaki 75 adet Saanen oğlaklarında çalışıldı. Ancak HW özelliği HS özelliği ile çoklu bağlantıdan dolayı analizden çıkarılmıştır. BW üzerine CG, HS ve BL'nin etkileri istatistiksel olarak önemli bulunmuştur. BL, BW üzerine en yüksek dolaylı etkili (0.521) değişken olarak bulunmuştur. CG'in doğrudan etkisi, HS ve BL'den daha yüksektir. BL'nin toplam etkisi HS ve CG'ninkinden daha yüksektir. Bu sonuçlar seleksiyon seçimi yanında pratik seçim için Saanen oğlaklarının canlı ağırlığını tahmin için göğüs çevresinin kullanılabileceğini göstermiştir

Saanen Oğlaklarının Canlı Ağırlıkları Üzerine Vücut Ölçümleri İçin Path Analizi

The aim of this study was to examine the direct, indirect and total effects of some body measurements on body weight of Saanen kids by using path analysis. For this aim, relationship between body weight (BW) and four morpho-biometrical traits [chest girth (CG), height at withers (HW), height at sacrum (HS) and body length (BL)]were studied in 75 Saanen kids at one month of age using path analysis. However HW trait was excluded from analyze because of its multicollinearity with HS. The effects of CG, HS and BL on BW were found statistically significant. BL was found as variable with highest indirect effect (0.521) on BW. The direct effect of CG was higher than HS and BL. The total effect of BL was higher than those of HS and CG. These results showed that chest girth could be used to estimate the body weight of Saanen kids for practical purposes as well as for selection purposes

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Dekkers JCM, Gibson JP, Bijma P, van Arendonk JAM: Design and optimisation of animal breeding programmes. Iowa State university lecture notes. URL: http://www.anslab.iastate.edu/class/ans652x/ chapter1.pdf, 2004. Accessed: 12.09.2014.
Arı A, Önder H: Regression models used for different data structures. Anadolu J Agr Sci, 28 (3): 168-174, 2013.
Anonymous: Path analysis (statistics). Access address: http:// en.wikipedia.org/wiki/ Path_analysis_(statistics), Accessed: 14.01.2015.
Curtis CR, Erb HN, Sniffen CJ, Smith, RD, Kronfeld DS: Path analysis of dry period nutrition, postpartum metabolic and reproductive disorders and mastitis in Holstein cows. J Dairy Sci, 68, 2347-2360, 1985. DOI: 10.3168/jds.S0022-0302(85)81109-7
Sihag RC, Abrol DP: Correlation and path coefficient analysis of environmental factors influencing flight activity of Apis florea F. J Apic Res, (4): 202-208, 1986.
Mendes M, Karabayır A, Pala A: Path analysis of the relationships between various body measures and live weight of American Bronze Turkeys under the three different lighting programs. Tarım Bil Derg, 11 (2): 188, 2005.
Keskin İ, Dağ B, Şahin Ö: Investigation of relationships between body measurements taken at the onset of the fattening period and warm carcass weights in Anatolian Merino male lambs by path analysis. Anim Breed Res Mag, 15 (2): 6-10, 2005.
Zhan-fu W, Xu-ping M, Shu-fei T, Shu-gin W, Cun-xin L, Li-hui G, Wen- hai Li, Hai-yun W: Path analysis on weight, body dimension and ear type of Saibei Rabbits. 9th World Rabbit Congress, June 10-13, Verona - Italy, 2008.
Bidwe KU, Chavan SD, Nage SP, Bansod PH: Path coefficient analysis of Buffalo production in Buldana district of Maharashtra. Vet World, 2 (3): 104, 2009.
Tahtali Y, Şahin A, Ulutaş Z, Şirin E, Abacı SH: Determination of effective factors for milk yield of Brown Swiss Cattle using by path analysis. Kafkas Univ Vet Fak Derg, 17, 859-864, 2011. DOI: 10.9775/ kvfd.2011.4688
Ogah DM, Yakubu A, Momoh MO, Dim NI: Relationship between some body measurements and live weight in adult Muscovy Ducks using path analysis. Trakia J Sci, 7 (1) : 58-61, 2011.
Gorgulu O: Path analysis form ilk yield characteristics in Jersey dairy cows. Asian J Anim Vet Adv, 6, 182-188, 2011. DOI: 10.3923/ ajava.2011.182.188
Lorentz LH, Gaya LG, Lunedo R, Ferraz SJB, Rezende FM, Filho TM: Production and body composition traits of broilers in relation to breast weight evaluated by path analysis. Sci Agric (Piracicaba, Braz), 68 (3): 320- , 2011.
Topal M, Esenboga N: A study on direct and indirect effects of some factors on weaning weight of a Awassi lambs. Turk J Vet Anim Sci, 25, 377- , 2001.
Yakubu A, Salako AE: Path coefficient analysis of body weight and morphological traits of Nigerian indigenous chickens. Egypt Poult Sci, 29 (3): 837-850, 2009.
Yakubu A: Path coefficient and path analysis of body weight and biometric traits in Yankasa lambs. Slovak J Anim Sci, 43 (1): 17-25, 2010.
Çankaya S, Abacı SH: Path analysis for determination of relationships between some body measurements and live weight of German fawn x Hair crossbred kids. Kafkas Univ Vet Fak Derg, 18, 769-773, 2012. DOI: 9775/kvfd.2012.6376
SPSS: Windows User's Guide. Version 13.0, SPSS Inc., Michigan Ave., Illinois, USA., Chicago, 2004.
Cankaya S, Altop A, Kul E, Erener G: Body weight estimation in Karayaka lambs by using factor analysis scores. Anadolu J Agric Sci, 24 (2): 102, 2009.
Garson D: Path analysis lecture notes. URL: http://ww.zozlak. org/Wnioskowanie%20Statystyczne/09_ZastosowaniaPrzyklady/ Garson_2008_PathAnalysis.pdf, 2008. Accessed: 12.09.2014.
Düzgüneş O, Eliçin A, Akman N: Hayvan Islahı. s.298, Ankara Üniv. Ziraat Fak. Ders Kitabı, No: 1437, Ankara, 1996.
Mendes M, Karabayır A, Pala A: Path analysis of the relationships between various body measures and live weight of American Bronze Turkeys under the three different lighting programs. Tarım Bil Derg, 11 (2): 188, 2005.
Topal M, Emsen B, Dodologlu A: Path analyses of honey yield components using different correlation coefficients in Caucasian honey bee. J Anim Vet Adv, 7 (11): 1440-1443, 2008.
Karabacak A, Zülkadir U, Aytekin İ, Keskin İ, Boztepe S: Investigation of relationship between some initial fattening body measurements and cold carcass weight in Akkaraman Lambs by using path analysis. Selçuk J Agric Food Sci, 24 (2): 36-39, 2010.
Keskin İ, Dağ B, Şahin Ö: Investigation of relationships between body measurements taken at the onset of the fattening period and warm carcass weights in Anatolian Merino male lambs by path analysis. Hayvancılık Araş Derg, 15 (2): 6-10, 2005.