The Semen Characteristics of West African Dwarf bucks infected with Listeria Monocytogenes

Semen Characteristics and Scrotal Size of Pubertal West African Dwarf Rams Fed Diets Containing Tetrapleura Tetraptera Fruit Meal

“…In general, total abnormalities per group or as per total sperm cells in all the groups were within normal range and show that increasing plane of T. tetraptera fruit meal did not have any adverse effect on the sperm count. This was contrary to the work of [24] who found out that feeding high protein diet (17.94% CP) had a negative effect on semen concentration and resulted in lower motility confirming that feeding high level of CP in diet is associated with decline in fertility. Sperm output, sperm morphology, semen volume and sperm viability were not influenced by level and source of protein.…”

“…These values are higher than those reported for Yankasa rams by [24]. The mean semen concentration obtained for the control rams is within the normal range reported for Yankasa rams by [24]. These values also concur with those reported by [31] for West African Dwarf bucks.…”

“…In general, total abnormalities per group or as per total sperm cells in all the groups were within normal range and show that increasing plane of T. tetraptera fruit meal did not have any adverse effect on the sperm count. This was contrary to the work of [24]…”

“…Spermatozoa are divided into three main segments which are the head, mid-piece and the tail, the head consist of little other than condensed nucleus and overlying acrosome containing acrosin and hyaluronidase [22]. The mean values for percentage total sperm abnormalities obtained in the rams of the control group are similar to normal values reported for Yankasa rams by [23] and [24] and [25] for West African Dwarf rams. Gossypol has been reported to cause morphological changes in the germ cells due to gossypol-induced inhibition of the synthesis of sperm-cell histones and other nuclear proteins that stabilize the structure of DNA [26].…”

“…The study showed that the mean percentage gross motility of the semen for Yankasa rams obtained in the pre-experimental period was within the normal range reported by [22], and those reported for West African Dwarf bucks by [25]. These values are higher than those reported for Yankasa rams by [24]. The mean semen concentration obtained for the control rams is within the normal range reported for Yankasa rams by [24].…”