Sexual behavior: attractively, proceptivity, receptivity
14 important questions on Sexual behavior: attractively, proceptivity, receptivity
How do cows/ewes/mares/sows show oestrus behaviour?
- Restless
- Moo more often
- Sniffing vagina other cow
- Mount other cows
- Standing respons
- Specific odour
- Difficult to detect
- Wagging of the tail
- Using a ram
- Frequently urinate
- Using a stalling, placing in front of the stallion
- Blitzen: Tail sideways and upwards, expose clitoris excreting small amounts of urine and mucus
- Clear pro-oestrus 2-3 days
- Vulva red and swollen
- Mount other sows
- Backpressure test in front of a boar or person in peak of oestrus
How does a bull/ram/stallion/boar shows mating behaviour?
Bull
- Flehmen
- 10-30 times a day, one cow will be mated 4-5 times
- No repeated movements of the pelvis
- Kind of leap
- Sniffing perineal region
- Flehmen
- Kicks/bounces agains ewes hindlegs
- Fast few movements of the pelvis
- Fast ejaculation
- Flehmen
- Bites the mare's neck
- Some movements of the pelvis
- Nodding of the tail by ejaculation
- Noses the flank
- Sniffs the genital tract of the sow
- Olfactory (odour)
- Auditory (grunting)
- Spiral formed penis
- Some pelvic movements
- Ejaculation 4-5 minutes, no pelvic movements, rhythmic contractions of the muscles
When can semen get collected in bulls/rams/goats/boars and stallions?
- Bulls 12 months
- Rams, goats, boars 7-8 months
- Stallions 24 months
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What are the most successful techniques for routine semen collection?
- Teaser female
- Another male / castrated male
- Dummies
What is the best procedure for collecting semen and what is it's function?
What are the 5 important and checked things for macroscopic evaluation of semen? And what is it per species, bull/boar/ram/stallion and cock?
Volume
Bull: 5-8 ml
boar: 100-500 ml
ram: 0,8-1,2 ml
stallion: 60-100 ml
cock: 0,2-0,5 ml
Color
Bull: white or gray/yellow/green
boar: colorless to white
Additional content
: No clotting/dirt
Clouding
Odor
Only by pigs
What is determined by concentration when looking at the microscopic evaluation of the semen and what are normal concentrations for bull, boar, ram and stallion?
When we measure sperm cells making the right movement and the quality we measure:
What does morphology mean when looking at microscopic evaluation?
Why is eggyolk of milk added by dilution? Is there more added?
How is semen stored? And at which temperature?
Does frozen semen affect the quality?
How does a cow/sow/ewe/mare get inseminated?
Cow:
By a rectovaginal technique, in the cervix or uterus
Sow:
Fixed into the cervix, the sperm dose in the uterus
Ewe:
A speculum deep into the vagina
Mare:
In the uterus by manual guidance in the vagina
What does NR% means? What is the average %?
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