Monthly Evaluation of Testicular Biometry and Sexual Behavior With Respect to Seminal Aspects of Arabian Stallions Under Subtropical Conditions in Kuwait
Monthly Evaluation of Testicular Biometry and Sexual Behavior With Respect to Seminal Aspects of Arabian Stallions Under Subtropical Conditions in Kuwait
Gamal Shawki1, Tawfek Mohamed Barakat1, Attia Mohamed Samy2, Ahmed Alhamed AL-Mejren2, Ayman Mesalam1*
ABSTRACT
Many factors, including the environmental temperature, photoperiod and the season of year have been shown to influence stallion reproductive performance. As latitudes greatly affect these factors, the current study aimed to, evaluate the influence of year months and seasons on testicular biometry, sexual behaviors and semen parameters of purebred Arabian stallions in Kuwait. Nine fertile stallions aged 4–22 years were used for assessment of testicle biometry, sexual behaviors and semen quality collected using artificial vagina throughout the year. Our results showed a clear monthly differences with higher semen quality (P < 0.05) especially in semen volume, sperm count, livability, and motility during June and July. Similarly, the length, width, height and volume of testes as well as the width of total scrotum were higher (P < 0.05) during August, July and September. Moreover, the number of mounts per ejaculation, reaction time, time to erection, ejaculation times and time to ejaculation were significantly lower during summer and spring seasons (P < 0.05). A positive correlation (P < 0.05) between sperm parameters and testicular parameters and negative correlation between the sperm parameters and sexual behaviors were recorded. These data suggest that, the testicular biometry and sexual behavior during summer and spring showed better characteristic than that during winter.
Keywords | Kuwait, Arabian stallions, Testicle biometry, Sexual behaviors;, Semen characters.
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