Published in Scientific Papers. Series D. Animal Science, Vol. LXIII, Issue 1
Written by Maya POPOVA
A study of the gestational length (GL) in mares from the Haflinger breed and the influence of the age, mating season and sex of the foal on it was conducted. The records used for the study were from the breeding register of the breeding mares (15 mares and 49 pregnancies) from the State Stud farm “Kabiuk” near Shumen, Bulgaria, for a 9 years’ period (2010-2019). It is established that the mares from the Haflinger breed are covered for the first time at average age of 3.98±0.78 years, average age at first fertilization - 4.02±0.80 years and average age at first foaling - 5.79±1.43 years. The GL is on an average 329.27±1.90 days. The mating season (P<0.05) and the sex of the foal (P<0.05) are significant sources of variation.
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