W5 Male repro behaviour Flashcards
Stages of Male sexual Behaviour
Precopulatory Stage
Copulatory Stage
Post copulatory stage
Precopulary behaviour
Search for sexual partner Courtship Sexual arousal Erection Penile protrusion
Copulatory Behaviour
Mounting
Intromission
Ejactulation
Postcopulatory Behaviour
Dismount
Refractory period
Memory
Courtship Behaviour
Sniffibg and licking
Flehmen reaction
Biting neck
Increased vocal and motor activity
Lorodis
Mating posture by female
Triggers sexual arousal in the male
Motor response associated with the willingness to mate
Pheromones
Volatile substances secreted to outside of body to attact opposite sex
Causes sexual arousal
Copulation
Mounting, intromission and ejactulation
Short - bull, ram, buck tom
Intermediate - stallion
Long- boar, dog, camelids
Stages of copulation
Mounting- positions of male for intromission
Intromission - entry of penis into vagina
Emission - movement of semial fluid from the accessory sex glands into the pelvic urethra
Ejactulation - relex re expulsion of semen from male reproudctive tract
Refractory
Period when second copulation will not take place. Depends on
Degree of sexual rest prior to copulaiton age of male species degree of female novelty number of previous ejactulations
Mechanisms of sexual behaviour
CNS Sensory Hypothalamus - reacts to sex hormonesMid brain Medulla Spinal cord
Penile erections
Elevated arterial blood flow
Dilation of corporal sinusoids
Restricted venous outflow
Elevated intrapenile pressure
Relaxation of retractor penis muscle
Nerve pathways resulting in emission and ejactulation
Intromission
Sensory stimulation of the glans Penis
Sudden and powerful contractions of urethralis bulbospongiosis and ischiocavernous muscles
Expulsion of semen
How to maximise spermatozoa per ejactulat
False mounting
Restrain
Semen collection
AV
Electroejactulator
Manual
