STUDY REGARDING SOME REPRODUCTIVE PARAMETERS OF BROODMARES FROM RĂDĂUȚI STUD FARM

M.G. Doliș, R.M. Radu-Rusu, G. Nacu, G.M. Doliș, V. Maciuc, Claudia Pânzaru

Abstract
   The present paper aimed to analyze 16 broodmares from the Rădăuți stud farm (2000 generation), from the genealogical lines Dahoman (2 females), El-Sbaa (5 females), Koheilan (1 female), Shagya (4 female), and Siglavy-Bagdady (2 female); thus, we considered important to study reproductive parameters such as gestation, foaling interval and reproductive longevity of these broodmares. The results indicated that the average gestation length was 338.7±0.9 days, and the variability of this character was reduced (V%=2.7%). Regarding the average duration of each genealogical line, we observed that it ranged between 334.9±3.3 days (Dahoman) and 341±1.4 days (Shagya), both of them being in limits given by the literature; in this case, the coefficient of variability had values between 1.6% (Siglavy-Bagdady genealogical line) and 3.8% (Dahoman genealogical line), which indicates that the population is very homogeneous regarding this character. For the whole population, the foaling-interval parameter had an average value of 503±19.9 days, and the absolute values that ranged between 326 and 1125 days; the variability of this character was high (18.1 - 46.4%). Depending on the genealogical lines of broodmares, the average value of foaling-interval ranged from 423±31.4 days (Dahoman) to 613.8±63.7 days (Hadban). Regarding the reproductive longevity of the mares studied, we observed that the average value of this parameter was 5335.6±429.2 days, the minimum being 1995.0 days, and the maximum 7339.0 days. Depending on the genealogical line, the average values of reproductive longevity were between 4457 days/12.2 years (Dahoman genealogical line) and 6600.5 days/18.1 years (Siglavy-Bagdady genealogical line).