| Autor: |
Şen U; Department of Agricultural Biotechnology, Ondokuz Mayis University, Samsun 55139, Turkey., Önder H; Department of Animal Science, Ondokuz Mayis University, Samsun 55139, Turkey., Şirin E; Department of Agricultural Biotechnology, Kırşehir Ahi Evran University, Kırşehir 40100, Turkey., Özyürek S; Department of Veterinary, Erzincan Binali Yıldırım University, Erzincan 24500, Turkey., Piwczynski D; Department of Animal Biotechnology and Genetics, UTP University of Science and Technology, 85-084 Bydgoszcz, Poland., Kolenda M; Department of Animal Biotechnology and Genetics, UTP University of Science and Technology, 85-084 Bydgoszcz, Poland., Ocak Yetişgin S; Department of Animal Science, Ondokuz Mayis University, Samsun 55139, Turkey. |
| Jazyk: |
angličtina |
| Zdroj: |
Animals : an open access journal from MDPI [Animals (Basel)] 2021 Mar 25; Vol. 11 (4). Date of Electronic Publication: 2021 Mar 25. |
| DOI: |
10.3390/ani11040930 |
| Abstrakt: |
The aim of this study was to classify placental characteristics of Akkaraman, Morkaraman, Karayaka, Awassi, Malya, and Bafra sheep breeds using the hierarchical clustering method. In total, 240 individual data records were used as experimental material. Placental characteristics such as total cotyledon surface area, small and large cotyledon length, small cotyledon depth, etc. were used as explanatory variables to classify the breeds' characteristics. Hierarchical clustering was used with the nearest neighbour method with Euclidean distance in order to classify the sheep breeds' variations. As a result, six breeds were separated into three clusters: the first cluster consisted of Bafra, Karayaka, and Awassi breeds; the second consisted of Akkaraman and Malya breeds; and the third cluster included only the Morkaraman breed. Bafra and Karayaka were pointed as the nearest breeds, with a similarity of 98.7% in terms of placental characteristics. The similarity rate of the Akkaraman and Malya breeds was at a level of 97.5%, whereas it was 96.8% for Bafra, Karayaka, and Awassi breeds. The similarity of Akkaraman, Karayaka, Awassi, Malya, and Bafra sheep breeds was estimated as 95.7%. The overall similarity was found to be at a level of 93.2% among sheep breeds. The outcomes of the study might be useful as a selection tool for reproductivity and can be used to select the breed to be reared. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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