Mating - Boar stimulation methods
The need to control boar contact |
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Sows and gilts in heat exhibit the
best signs of oestrus when they are within a metre of an adult boar with good
libido |
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Why |
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A boar salivating. The boar pheromones are highly concentrated
in the saliva. But the boar needs to be within a metre to have the best
effect. |
The sow and boar have a repertoire of
behaviour prior to the initiation of mating. |
How |
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On many farms the boar is just loose to run around the breeding area. How long does he stand within a metre of a sow in heat? |
If there are several sows/gilts in heat at once the single boar can concentrate on one and miss others still in heat |
The boar can be tethered and easily
taught to walk around the sows |
The tethered boar can be tethered next
to the sows being checked |
The boar can be controlled by a gate
manually |
The boar can be controlled by a
“remote” gate The boar is easily kept within a metre
of the sows in heat |
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The boar can be placed into a controlled
mechanized crate –the Boar Bot and then ‘remotely’ controlled by the
stockperson |
The
second boar effect? With boar controlled mating, the
mating process can be speeded up. But
it is still important that boar exposure is provided for 15 minutes per sow
to encourage both oestrus behaviour and uterine contractions to move the
semen to the oviduct. |