Effect of crossbreeding on linear udder scores and their phenotypic relationships in Iranian fat-tailed ewe's
| Autor: | Sadeghi S., Rafat A., Bohlouli M. |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: | |
| Zdroj: | Biotechnology in Animal Husbandry, Vol 30, Iss 1, Pp 61-77 (2014) |
| Druh dokumentu: | article |
| ISSN: | 1450-9156 2217-7140 |
| Popis: | Now, image processing is a better technique than the subjectively assessments for linear scoring of morphologic traits, especially in fat- tailed ewe's. The objective of this study was to assess this application in animal characterization on a case study in order to comparing of, udder morphological characteristics in two Iranian crossbred sheep populations including Ghezel- Arkhamerino (GH-MR; 25 ewes), Moghani-Arkharmerino (MG-MR; 25 ewes) and a pure one that was Ghezel ewes (20 ewes). Ten udder factors and five milk traits were measured on seventy ewes during three stages of lactation. Digital pictures were analyzed by Digimizer 3.6 software. Statistical analysis of udder liner scores was performed by using the MIXED procedure of SAS 9.1 software. Results showed that long udders were more frequent in the Ghezel ewes than in crossbred's ewes. Least variation was observed for teat placement score in Ghezel purebred ewes. The means of udder depth in the Ghezel ewes were larger than in the crossbreds (P |
| Databáze: | Directory of Open Access Journals |
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