![]() Rams and bucks have a full complement of accessory sex glands. ![]() The tubular structure is reflected dorsally and becomes the vas deferens. The body of the epididymis curves around the lateral portion of the balls and ends caudomedially as the tail. These ducts drain into the head of the epididymis, which is located on the dorsal craniolateral aspect of the ball. ![]() The seminiferous tubules drain into the rete ball, which in turn is drained by 10 to 12 efferent ducts. The testicle itself is surrounded by a thick layer of fibrous connective tissue known as the tunica albuginea. The parenchyma of the balls is composed of seminiferous tubules that contain the germ cells and their supporting cells (Sertoli cells). Video can’t be loaded because JavaScript is disabled: How to check ram's testicles – a three minute primer () Primer Checking a Rams Testicles The scrotal septum, composed primarily of the dartos muscle, divides the scrotum into two halves. The space between the two layers of the tunic (parietal and visceral) as it reflects around the testicle normally contains a small amount of peritoneal fluid. The vaginal tunics are outcroppings of the peritoneum and form a protective covering over the testicles. The scrotal fascia is the connective tissue that typically is broken down in the separation of the skin from the testicle during routine castration. The dartos, a smooth muscle layer, is connected to the tunics of the balls by the scrotal fascia. A rich plexus of blood vessels, lymphatics, and sweat glands lie beneath the skin. The scrotum is composed of undulating epidermis that may or may not is covered by wool or hair, depending on the breed and husbandry practices. The balls are suspended away from the body within the pendulous scrotum. Significant differences are seen between the breeding and the nonbreeding season with respect to the pattern of GnRH and luteinizing hormone (LH) pulses and the response of the pituitary gland to GnRH. The physiologic changes in testicular size, mating behavior, and semen quality are caused by the activation of the hypothalamus and a decrease in the effectiveness of testosterone on the negative inhibition of gonadotropin-releasing hormone (GnRH). ![]() The ram often strikes out at the female with one front leg before mounting her. Rams display a typical flehmen response to females in estrus after sniffing the vulva region and urine from the estrus female. He becomes more sexually interested in the female, and courtship behavior occurs more frequently. Manipulation of light-dark intervals and the use of melatonin can alter the breeding season of rams.Ī change in the sexual attitude of the ram toward the ewe as day length decreases defines the onset of the breeding season. Video can’t be loaded because JavaScript is disabled: sheep amazing testicles () New Zealand Sheep Large Testicles ![]()
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