19 - Reproductive Behaviour

Question 1

Difference in male vs female stages of reproductive behaviour

Answer 1

Male: can occur at any time
Female: sexual activity confined to estrus

Question 2

Stages of male reproductive behaviour

Answer 2

1. Precopulatory stage
2. Copulatory stage
3. Postcopulatory stage

Question 3

Stages of female repro beh

Answer 3

1. Attractivity
2. Proceptivity
3. Receptivity

Question 4

Order of events in the male precopulatory stage

Answer 4

Search for partner -> courtship -> sexual arousal -> erection -> penile protrusion

Question 5

Order of events in copulatory stage of males

Answer 5

mounting -> intromission -> ejaculation

Question 6

Order of events in postcopulatory stage

Answer 6

Dismount -> refractory period (recovery) -> memory

Question 7

Bull search, courtship and copulatory behaviours

Answer 7

Search: approach sexually active group of females testing for lordosis, flehmen

Courtship: nuzzling and licking or perineal region. Chin resting, testing for lordosis

Copulatory: penile protrusion with dribbling of seminal fluid, erection and attempted mounts

Question 8

Stallion search, courtship, copulatory behaviours

Answer 8

Search: visual search, flehmen

Courtship: high degree of excitement. Bites neck/withers.

Copulatory: penile protrusion with no preejaculatory expulsion of seminal fluid, mounting

Question 9

Ram search, courtship and consummation behaviour

Answer 9

Search: sniffing and licking of ano-genital region, nudging ewe, flehmen

Courtship: neck outstretched and held horizontally

Consummation: repeated dorsal elevation of scrotum, penile protrusion with no dribbling of seminal fluid, mounting

Question 10

Slide 8***

Answer 10

Male behaviours in diff species

Question 11

What are “warm-up” stalls

Answer 11

Stimulate sexual behaviour in males: visual stimulation by watching other males mount

Question 12

Three types of female sexual behaviour

Answer 12

1. Attractivity: behaviour and other signals that attract the male (locomotion, posture, vocalization, pheromones)
2. Proceptivity: behaviours by the female towards the male to stimulate copulation
3. Receptivity: copulatory behaviour (stance) by the female

Question 13

How are physical activity and the female cycle related

Answer 13

More steps (increased activity) indicates estrus

Question 14

Cow search, courtship, consummation behaviours

Answer 14

Search (attractivity): increased locomotion, vocalization, twitching, elevation of the tail

Courtship (proceptivity): increased grooming, mounting attempts with other females

Consummation (receptivity): homosexual mounting & standing to be mounted

Question 15

Slide 14

Answer 15

Female behaviours in diff species

Question 16

Slides 15, 16

Answer 16

Literally do not want to look

Question 17

Reproductive behaviour is programmed when? How

Answer 17

During prenatal development

High concentrations of E2 causes developing behaviour related brain centers to be “defeminized”
Absence of E2 = behaviour related brain centers become “fully feminized”

Question 18

How does female fetus exposure to E2 affect behaviour? T4?

Answer 18

Decreased estrous behaviour, increased male-like behaviour

T4 the same

Question 19

How does male exposure to E2 affect behaviour? P4? Testosterone?

Answer 19

All have no effect (normal male beh)

Question 20

Slide 21

Answer 20

Confused ab bottom

Question 21

Characteristics of copulation in bull and ram (ejaculation, primary stimulus, site of semen dep, collection technique)

Answer 21

Ejaculation: 1-2 seconds (1 pelvic thrust)

Primary stimulus: temperature

Site of semen dep: vagina (near cervix)

Collection technique: artificial vagina

Question 22

Characteristics of copulation in the stallion

Answer 22

Ejaculation: 20-60 seconds (multiple pelvic thrusts)

Primary stimulus: friction

Site of semen deposition: vagina (some semen enters uterus)

Collection technique: artificial vagina

Question 23

Characteristics of copulation in the boar

Answer 23

Ejaculation: 5-20 minutes

Primary stimulus: pressure on glans penis

Site of semen dep: cervix and uterus

Collection: gloved hand

Question 24

Characteristics of copulation in the dog

Answer 24

Ejaculation: 5-45 mins

Primary stim: pressure on penis

Site of semen dep: cervix & uterus

Collection: artificial vagina

Question 25

Slides 23-30

Answer 25

Artificial vaginas/collection