Classification of Karayaka and Bafra (Chios x Karayaka B-1) sheep according to body measurements by different clustering methods

Kilic I., ÖZBEYAZ C.

ANKARA UNIVERSITESI VETERINER FAKULTESI DERGISI, cilt.58, sa.3, ss.203-208, 2011 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 58 Sayı: 3
  • Basım Tarihi: 2011
  • Doi Numarası: 10.1501/vetfak_0000002475
  • Dergi Adı: ANKARA UNIVERSITESI VETERINER FAKULTESI DERGISI
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, TR DİZİN (ULAKBİM)
  • Sayfa Sayıları: ss.203-208
  • Anahtar Kelimeler: Body measurements, clustering analysis, k-means, sheep
  • Ankara Üniversitesi Adresli: Evet

Özet

This study has been carried out to classify Karayaka and Bafra (Chios x Karayaka B-1) sheep according to body measurements by k-Means within nonhierarchical clustering methods and single linkage, average linkage and complete linkage within hierarchical clustering methods. In this research, age-adjusted data of body measurements of 223 Karayaka and 462 Bafra sheep in various ages breed in Gokhoyuk Agricultural Enterprise that belongs to General Directorate of Agricultural Enterprises were used. At the end of the study, it was detected that it was obtained the best parameter value when Bafra sheep were divided into 7 clusters and Karayaka into 3 according to k-Means method, and in hierarchical clustering methods, it was obtained different clusters according to various levels of similarity and distance. These results put forward that according to classifications made by different clustering methods, Bafra has a more heterogeneous structure than Karayaka in terms of body measurements.