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Group-training of rams at puberty for artificial vagina-mediated semen collection and its influence on semen quality and sexual behavior.

Majdi Ahmed BahadiMohammed Abdo Al-BadwiEmad Mohammed SamaraKhalid Ahmed AbdounIbrahim Abdullah AlhidaryAhmed Abraham Al-Haidary
Published in: Animal reproduction (2023)
There is a paucity of information with respect to group-training for artificial vagina and its influence on semen characteristics and sexual behavior of young untrained rams. A total of 18 healthy Najdi rams (with an initial body weight of 40-45 Kg and 7-8 month-old) were consequently used herein to test the usefulness of group-training for artificial vagina-mediated semen collection during the breeding season. Rams were randomly segregated into three groups ( n = 6 rams per protocol), and the whole experiment was lasted for 10 weeks. The 1 st group was subjected to a training protocol where one untrained ram was placed for 20 min with a teaser ewe, while the 2 nd group were subjected to a protocol where one untrained ram was placed for 20 min with one trained ram and a teaser ewe, whereas the 3 rd group were subjected to a protocol where three untrained rams were placed for 20 min with one trained ram and a teaser ewe. The obtained results clearly ( P < 0.05) showed that training young rams in group has increased their sperm concentration and sexual stimulation, shortened the period of their training time, and descriptively had a complete training efficiency. The sexual stimulation of young untrained rams was intensified by the competition between rams in the co-presence of a trained ram. Collectively, these data may suggest that group-training of rams at puberty is a better protocol for AV-mediated semen collection compared to individual training. Some shortcomings were noted herein, but research dealing with this subject may very well improve the reproductive performance of young untrained rams.
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