"4"^^ . "0936-6768" . . "Qualitative traits of rams\u00B4 semen in the Czech autochthonous breeds Sumava and Wallachia sheep" . . "Qualitative traits of rams\u00B4 semen in the Czech autochthonous breeds Sumava and Wallachia sheep"@en . . . "RIV/60460709:41210/09:28954!RIV10-MZE-41210___" . . "144" . "Je\u017Ekov\u00E1, Alena" . . "Qualitative traits of rams\u00B4 semen in the Czech autochthonous breeds Sumava and Wallachia sheep" . "Reproduction in Domestic Animals" . . . "RIV/60460709:41210/09:28954" . "3" . . . "The semen quality of 50 Sumava (n=33) and Wallachia rams (n=17) in 8 herds were evaluated during the mating seasons from 2005 to 2008. Sperm volume, motility, and density were evaluated after collection, and the motility was estimated repeatedly after dilution and during a survival test (30, 60, and 90 minutes, 39+1o C). The results were evaluated by the SAS GLM procedure. Wallachia rams achieved better results of sperm quality after collection and dilution; however, Sumava rams had higher sperm motility during the entire survival test (P < 0.05). The highest results of sperm motility before and after dilution were detected in semen with a high or very high level of density (P < 0.05). The survival of the sperm during the test significantly differed in relation to density before diluting (P < 0.05). Relationships among sperm motility before and after diluting and during the entire survival test were confirmed by Pearson\u00B4s correlation coefficients, r=0.7637 - r=0.9191 (P < 0.001). The oldest rams (> 6" . "Heged\u00FC\u0161ov\u00E1, Zde\u0148ka" . . . . . . "St\u00E1dn\u00EDk, Lud\u011Bk" . "1"^^ . . . "Qualitative traits of rams\u00B4 semen in the Czech autochthonous breeds Sumava and Wallachia sheep"@en . "Louda, Franti\u0161ek" . "337782" . . "P(QH81324), Z(MSM6046070901)" . "41210" . "5"^^ . . "[7B6FAE635D6E]" . . "DE - Spolkov\u00E1 republika N\u011Bmecko" . "sperm; volume; motility; breed; age"@en . "The semen quality of 50 Sumava (n=33) and Wallachia rams (n=17) in 8 herds were evaluated during the mating seasons from 2005 to 2008. Sperm volume, motility, and density were evaluated after collection, and the motility was estimated repeatedly after dilution and during a survival test (30, 60, and 90 minutes, 39+1o C). The results were evaluated by the SAS GLM procedure. Wallachia rams achieved better results of sperm quality after collection and dilution; however, Sumava rams had higher sperm motility during the entire survival test (P < 0.05). The highest results of sperm motility before and after dilution were detected in semen with a high or very high level of density (P < 0.05). The survival of the sperm during the test significantly differed in relation to density before diluting (P < 0.05). Relationships among sperm motility before and after diluting and during the entire survival test were confirmed by Pearson\u00B4s correlation coefficients, r=0.7637 - r=0.9191 (P < 0.001). The oldest rams (> 6"@en . . "\u0160tolc, Ladislav" . .