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Üç Farklı Aydınlatma Programında Yetiştirilen Amerikan Bronz Hindilerinde Değişik Vücut Ölçüleri ile Canlı Ağırlık Arasındaki İlişkilerin Path Analizi ile İncelenmes

Year 2005, Volume: 11 Issue: 02, 184 - 189, 01.05.2005
https://doi.org/10.1501/Tarimbil_0000000408

Abstract

Hayvan ıslahı ve genetiğinde, sebep-sonuç ilişkilerinin bilinmesi seleksiyon hakkında önemli ipuçları verebilir. Sebep değişkenlerinin üzerinde durulan özelliklere katkılarının farklı olması, söz konusu özelliklere en fazla katkı yapan değişkenlerin belirlenmesini gerektirir. Bu çalışmada, Amerikan Bronz Hindilerinin tespit edilen dört özelliğinin incik uzunluğu, göğüs uzunluğu, göğüs derinliği ve göğüs çevresi , 30. hafta canlı ağırlık üzerine doğrudan ve dolaylı etkileri iz katsayısı metodu Path analizi kullanılarak analiz edilmiştir. Analiz sonuçları, canlı ağırlık üzerine en fazla doğrudan etkiye sahip olan değişkenin incik uzunluğu değişkeninin olduğunu göstermiştir. Genel olarak, göğüs uzunluğu ve göğüs çevresi değişkenlerinin incik uzunluğu üzerinden olan dolaylı etkileri de daha yüksek bulunmuştur. Buradan hareketle, 30. hafta canlı ağırlığa en etkili değişkenin incik uzunluğu olduğu ve bunun modele dahil edilmesinin gerekli olduğu sonucuna varılmıştır

References

  • Alvin, D. F. and R. M. Hauser. 1975. The decomposition of effects in path analysis. American Sociological Review 40: 37-47.
  • Anonymous 2004. Path Analysis. http://www.chass .ncsu.edu/garson/pa765/path.htm.Access date: (07 Şahiner, S. and Ö. Görgülü. 2000. Path analysis and September 2004)
  • Draper, N. R. and H. Smith. 1998. Applied Regression Analysis. John Wiley and Sons Inc., New York, USA.
  • Düzgüneş, O., A. Elicin and N. Akman. 1996. Hayvan Islahı, Ankara Univ. Ziraat Fak. Yayınları: 1437, Ankara.
  • Düzgüneş, O., T. Kesici, O. Kavuncu and F. Gürbüz. 1987. Arastırma ve Deneme Metodları. Ankara Univ. Ziraat Fak. Yayınları: 1021, Ankara.
  • Gürbüz, F., E. Başpınar, S. Keskin, M. Mendeş and B. Tekindal. 1999. Path analysis technique. 4. National Biostatistics Meeting, 23-24 September 1999, Ankara.
  • Hamilton, R. M. G. and J. Kennie. 1997. The effects of lighting program. Ingredient particle size and feed form on the performance of broiler turkey. Canadian Journal of Animal Science, 77: 503-508.
  • Işçi, Ö., C. Takma and Y. Akbas. 2004. Study on Factors Effecting 305-Day Milk Production of Holstein Friesian Using Path Analysis. National Animal Science Meeting, 1- 3 September 2004, Isparta.
  • Keskin, S. 1998. Path coefficients and path analysis. Masters thesis Ankara University Graduate School. (unpublished). California, USA. Three different lighting programs on live weight change of bronze turkeys under semi-intensive conditions. Archives of Animal Breeding (in press). relationship among pre-and post slaughter traits of American Bronze Turkey. Archives of Animal Breeding (in press).
  • Nestor, K. E., J. W. Anderson and S.G. Velleman. 2001. Genetic variation in pure lines and crosses of large-bodied turkey lines. 2. Carcass traits and body shape. Poult Sci. 80: 1093-1104.
  • Okut, H. and H. Orhan. 1993. Path analysis and correlation coefficient. I. National Econometri and Statistics Meeting, 11-12 November 1993, Izmir. application. Mustafa Kemal Univ. Ziraat Fak. Dergisi 5: 87- 1002.
  • Sirali, R. and T. Kayaalp. 1995. Path analysis of the independent variables effective on various traits in honey bees of Trakya region. Harran Üniv., Ziraat Fak. Dergisi, 1: 211- 217.
  • Wright, S. 1934. The method of path coefficients. Annals of Mathematical Statistics 5: 161-215.
  • Wright, S. 1960. Path coefficients and path regression. Alternative on complementary concepts. Biometrics 16: 423-445.
  • Wright, S. 1968. Genetic and Biometric Foundation. The University of Chicago Press. Volume 1. Chicago, USA.
  • Yahav, S., S. Hurwitz and I. Rozenboim. 2000. The effect of light intensity on growth and development of turkey toms. British Poultry Science 41: 101-106.

Path Analysis of the Relationships Between Various Body Measures and Live Weight of American Bronze Turkeys Under Three Different Lighting Programs

Year 2005, Volume: 11 Issue: 02, 184 - 189, 01.05.2005
https://doi.org/10.1501/Tarimbil_0000000408

Abstract

In animal breeding and genetics, knowledge of causal effects may provide valuable information on selection. Different contributions of explanatory variables to the traits indicate that the breeder has to choose the variable with the largest contribution in a selection effort. In this study, direct and indirect effects of four explanatory variables Shank Length, Breast Length, Breast Depth and Breast Circumference influential on live weight at week 30 in American Bronze turkeys were investigated using path analysis. Results of the analyses indicated that the direct effects of shank length were the largest on live weight. In general, indirect effects of Breast Length and Breast Circumference through Shank Length were highest among all indirect effects. Shank Length is the most influential variable and must be included in the model in estimating the live weight at week 30

References

  • Alvin, D. F. and R. M. Hauser. 1975. The decomposition of effects in path analysis. American Sociological Review 40: 37-47.
  • Anonymous 2004. Path Analysis. http://www.chass .ncsu.edu/garson/pa765/path.htm.Access date: (07 Şahiner, S. and Ö. Görgülü. 2000. Path analysis and September 2004)
  • Draper, N. R. and H. Smith. 1998. Applied Regression Analysis. John Wiley and Sons Inc., New York, USA.
  • Düzgüneş, O., A. Elicin and N. Akman. 1996. Hayvan Islahı, Ankara Univ. Ziraat Fak. Yayınları: 1437, Ankara.
  • Düzgüneş, O., T. Kesici, O. Kavuncu and F. Gürbüz. 1987. Arastırma ve Deneme Metodları. Ankara Univ. Ziraat Fak. Yayınları: 1021, Ankara.
  • Gürbüz, F., E. Başpınar, S. Keskin, M. Mendeş and B. Tekindal. 1999. Path analysis technique. 4. National Biostatistics Meeting, 23-24 September 1999, Ankara.
  • Hamilton, R. M. G. and J. Kennie. 1997. The effects of lighting program. Ingredient particle size and feed form on the performance of broiler turkey. Canadian Journal of Animal Science, 77: 503-508.
  • Işçi, Ö., C. Takma and Y. Akbas. 2004. Study on Factors Effecting 305-Day Milk Production of Holstein Friesian Using Path Analysis. National Animal Science Meeting, 1- 3 September 2004, Isparta.
  • Keskin, S. 1998. Path coefficients and path analysis. Masters thesis Ankara University Graduate School. (unpublished). California, USA. Three different lighting programs on live weight change of bronze turkeys under semi-intensive conditions. Archives of Animal Breeding (in press). relationship among pre-and post slaughter traits of American Bronze Turkey. Archives of Animal Breeding (in press).
  • Nestor, K. E., J. W. Anderson and S.G. Velleman. 2001. Genetic variation in pure lines and crosses of large-bodied turkey lines. 2. Carcass traits and body shape. Poult Sci. 80: 1093-1104.
  • Okut, H. and H. Orhan. 1993. Path analysis and correlation coefficient. I. National Econometri and Statistics Meeting, 11-12 November 1993, Izmir. application. Mustafa Kemal Univ. Ziraat Fak. Dergisi 5: 87- 1002.
  • Sirali, R. and T. Kayaalp. 1995. Path analysis of the independent variables effective on various traits in honey bees of Trakya region. Harran Üniv., Ziraat Fak. Dergisi, 1: 211- 217.
  • Wright, S. 1934. The method of path coefficients. Annals of Mathematical Statistics 5: 161-215.
  • Wright, S. 1960. Path coefficients and path regression. Alternative on complementary concepts. Biometrics 16: 423-445.
  • Wright, S. 1968. Genetic and Biometric Foundation. The University of Chicago Press. Volume 1. Chicago, USA.
  • Yahav, S., S. Hurwitz and I. Rozenboim. 2000. The effect of light intensity on growth and development of turkey toms. British Poultry Science 41: 101-106.
There are 16 citations in total.

Details

Primary Language Turkish
Journal Section Research Article
Authors

Mehmet Mendeş This is me

Ali Karabayır This is me

Akın Pala This is me

Publication Date May 1, 2005
Submission Date May 1, 2005
Published in Issue Year 2005 Volume: 11 Issue: 02

Cite

APA Mendeş, M., Karabayır, A., & Pala, A. (2005). Üç Farklı Aydınlatma Programında Yetiştirilen Amerikan Bronz Hindilerinde Değişik Vücut Ölçüleri ile Canlı Ağırlık Arasındaki İlişkilerin Path Analizi ile İncelenmes. Journal of Agricultural Sciences, 11(02), 184-189. https://doi.org/10.1501/Tarimbil_0000000408

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