COMPARATIVE RESULTS OF CERTAIN QUANTITATIVE AND QUALITATIVE SEMEN PARAMETERSIN TZIGAI AND SUFFOLK RAMS

Abstract

Volume, motility, concentration and sperm abnormalities represent important parameters within ram semen production examination from the viewpoint of quantitative and qualitative meaning. Without the sperm concentration analysis and without the establishment of live and viable sperm number there can’t be conceived a rational dilution so as to obtain a suitable number of insemination doses from each ejaculate and from each ram, in this way to realize a selection pressure through the agency of the sires (Fitzgerald and Stellflug, 1998). The crossing between Tzigai and Suffolk breeds is profitable thanks to high meat production and some superior quantitative and qualitative semen parameters that come the last one. The aim of the present study was to compare some semen parameters at these two breeds. Immediately after semen collection, there were exams a number of 8 semen samples from Tzigai rams and 16 samples from Suffolk rams, analyzing the sample volume, the sperm motility and concentration, the number of sperm/sample inclusive the sperm abnormalities. The differences between treatments were analyzed by ORIGIN7 and interpreted using the Student test. The medium value of the samples volume was by 0.43±0.01 ml at Tzigai rams and respectively 0.48±0.02 ml at Suffolk rams, of the sperm motility was by 0.93±0.01 decimal notes and respectively by 0.94±0.01, of sperm concentration was by 1.73±0.04 billions sperm/ml and respectively by 2.05±0.04 billions sperm/ml, of sperm number per sample was by 0.75±0.01 sperm/sample and respectively by 0.99±0.03 sperm/sample, of sperm head abnormalities was by 4.62±0.18% and respectively by 4.00±0.20%, of sperm intermediary piece abnormalities was by 5.25±0.31% and respectively by 4.31±0.11%, of sperm tail abnormalities was by 4.50±0.18% and respectively by 3.68±0.11% and of total sperm abnormalities was by 14.37±0.41% and respectively by 12.00±0.20%. Therefore were obtained non significant differences respect the samples volumes (t=1.58), the sperm motility (t=1.07) and the sperm head abnormalities (t=1.96), distinctly significant differences respect the sperm intermediary piece abnormalities (t=3.39) and the sperm tail abnormalities (t=3.77) and very significant differences respect the sperm concentrations (t=4.89), the sperm number per sample (t=4.67) and the total abnormalities (t=5.77). Results a superiority of Suffolk rams semen against the Tzigai rams semen respect the qualitative semen parameters.