Abstract
The aim of this study was to assess sperm quality (motility, viability and acrosomal integrity) sperm from commercially frozen semen straws two breeds of bulls Bos taurus (holstein Frisian) and Bos indicus (Brahman). 9 commercial straws 0.5 ml of Holstein bull semen and 9 Brahman bull were thawed, they were kept for two hours at room temperature and motility, viability and acrosomal integrity (NAR) was assessed. The results were 30% motility, viability 40% and 30% of NAR in the Holstein breed. Brahma race for motility 40%, 50% and 40% viability was obtained NAR. In conclusion, according to the results of the variables analyzed, the Brahman breed in sperm quality was better than the Holstein breed; however, the results of both races meet minimum standards of quality sperm for use in artificial insemination (AI) field level.
Highlights
The freeze-thaw process, affecting approximately 50% of the sperm survival, is mainly due to the effect of these processes on the membrane, motility and sperm nuclei
The straws with semen of both races were thawed in a water bath at 35 ̊C for 35 seconds, they are perfectly dried, uncovered and semen was deposited in tubes Ependorf to assess immediately after motility, viability and NAR [7], semen thawed stored at room temperature for two hours and assessments were made every hour
The results obtained are shown in the following Table 1
Summary
The freeze-thaw process, affecting approximately 50% of the sperm survival, is mainly due to the effect of these processes on the membrane, motility and sperm nuclei. Semen Thawed, Bulls, Frozen Semen, Sperm Quality How to cite this paper: Córdova-Izquierdo, A., et al (2015) Sperm Quality in Holstein Bulls Friesian and Brahmans of Frozen Semen Commercially.
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