Male Reproduction
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(def) the number of live offspring born in a given period
Reproductive efficiency
What factors affect reproductive efficiency?
Genetic potential, nutrition, season, and environment
(def) Taking a female and having her gain weight, leads to a higher number of eggs
Flushing
What is spermatic genesis?
Formation of sperm cells, happens daily, constantly
What is the primary sex organ of the male?
Testis
Sperm are produced by the _______.
Seminiferous tubules
How long does it take for sperm to be produced from scratch?
6 weeks
Testosterone is produced by the _______ within the _______.
Interstitial cells Testicle
Function of the epididymis?
Long tube attached to the side of the testicle that functions as an area for sperm maturation and storage
(def) A tube that transports sperm from the epididymis to the urethra
Vas deferens
Where is the ampulla located?
Where the vas deferens joins the urethra
What animal does not have an ampulla? - Bull, stallion, ram, boar
Boar
What gland secretes nourishment and stimulates the activity of sperm?
Prostate gland
What does the vesicular gland (seminal vesicles) do?
Neutralizes urine residue
What does the bulbourethral gland do?
Adds volume to the ejaculate
(def) Organ of copulation and passageway for urine and semen
Penis
(def) Spongy tissue that fills with blood making the penis rigid
Cavernosum tissue
Type of penis? - Sigmoid flexure, s-shaped, bull, boar, ram
Fibroelastic
Type of penis? - No sigmoid flexure, stallion, dog
Vascular
What is the only animal that can get into the cervix?
Boars
(def) Contains and protects testicles as well as regulates temperature
Scrotum
Testicular temperature is ___ - ____ degrees cooler than body temp
4 - 5
What is cryptorchid/ monorchid?
Testicles don’t come down, “hidden” testicle
(def) Chemical messengers within the body that regulate body functions
Hormones