Evaluation of semen quality in pure lines of the brown laying cocks in Poultry Research Institute.

14.7±6.4 ve sperma pH'si 7.0±0.3, 7.0±0.2, 7.1±0.3, 7.0±0.3, 6.9±0.3, 7.0±0.3 olarak kaydedildi. Hatlar arasinda ejakulat miktari (P 0.05) bulundu. Sonuc olarak, bu calisma ile Tavukculuk Arastirma Enstitusunde bulunan 6 kahverengi yumurtaci saf hat horozlarinda spermatolojik ozelliklerin normal sinirlar icerisinde oldugu ve in vitro spermatolojik degerlendirmelere dayanarak sperma kalitelerinin iyi oldugu sonucuna varildi. Anahtar sozcukler: Horoz, Spermatolojik ozellikler, Sperma kalitesi /ml), the percentage of abnormal sperm (%), the percentage of dead sperm (%) and semen pH were recorded as 0.7±0.2, 0.9±0.2, 0.9±0.2, 0.6±0.2, 0.8±0.2, 0.7±0.1; 85.1±8.2, 87.6±7.7, 87.6±12.2, 87.6±7.0, 84.4±10.4, 85.0±9.0; 3.1±1.0, 3.6±1.0, 2.8±0.8, 3.3±1.2, 3.3±1.1, 3.2±0.7; 3.1±2.7, 3.0±2.1, 4.9±3.4, 4.5±3.5, 3.2±2.6, 4.8±4.3; 14.0±7.0, 13.5±5.9, 14.6±9.5, 12.0±3.9, 15.2±7.1, 14.7±6.4 and 7.0±0.3, 7.0±0.2, 7.1±0.3, 7.0±0.3, 6.9±0.3, 7.0±0.3 for Line 54, Barred Rock 1, Colombian Rock, Barred Rock 2, Rhode Island Red 2, Rhode Island Red 1, respectively. Differences among lines were significant for ejaculate volume (P 0.05) for sperm motility, dead sperm and semen pH statistically. It is concluded that sperm characteristics in pure lines brown laying cocks is within normal limits and semen quality is good according to in vitro sperm characteristics in Poultry Research Institute by this study.