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- Title
Sources of specific variance and genetic parameters of gaits quality in 2-years old horses from the East Bulgarian breed.
- Authors
Popova, Maya; Sabeva, Ilyana
- Abstract
The aim of the present study was to establish the sources of specific variance and the genetic parameters of gaits in 2-years old horses from the East Bulgarian breed. The basis for the study was the data from the assessment of the gaits, walk, trot, free gallop and correctness of 228 East Bulgarian horses tested for a period of 10 years. Tests for two-years old horses were conducted on two consecutive days with a pre-adaptation period for one week. Preliminary selection was not applied to the participants. The composition of judges was relatively constant. A 10-point score system with an accuracy of 0.5 was used. The registration of the animals and traits was carried out by the East Bulgarian Horse Association. There were statistically proven sources of a specific variance as the family belonging of horses for gaits, walk, gallop and correctness, and the mother’s line for correctness and gallop. Years of birth had generated variation upon all of the studied traits, and the month of birth – on trot scores. Differences due to gender differentiation were in favor of males. The best genetic potential was possessed by the horses belonging to the families of Linia, Slavyanka, Ohota and Malta and the mares’ offspring originating from the lines of Tihany, Devis Own, Ramzes and Tempelhuter. The rate of additive variance was from a low to moderate for gaits in the aggregate (0.30–0.49), walk (0.35–0.50), trot (0.18–0.35), and free gallop (0.35–0.08) and high for correctness (0.60–0.75). There was an higher heritability value’s increasing the volume of progeny groups, except for the gallop. Favorable from the breeding point of view were the established correlations between correctness and trot (0.77) and between correctness and gallop (0.49).
- Subjects
HORSE breeds; HORSE breeding; HORSE paces, gaits, etc.; HORSE physiology; HORSE diseases
- Publication
Bulgarian Journal of Animal Husbandry / Životnov Dni Nauki, 2021, Vol 58, Issue 6, p3
- ISSN
0514-7441
- Publication type
Article