Yeah, I have noticed that in goats. Some wethers are still as nasty as if they were remained bucks. Some are even worse than some bucks. Just out of curiosity. Is this something with the way he was raised, or is it unpreventable and just his personality?
It may have a lot to do with how late they were castrated. This calf is fully able to breed another cow at 6 mo. of age, so his hormones are full and functioning. According to the article in the link I posted, his behavior may have a lot to do with how he was raised. Imprinting can confuse that animal for life, no matter if he's later castrated or not. This is also why so many people who hand rear male chickens get attacked by the same birds when they reach sexual maturity.
https://www.usask.ca/wcvm/herdmed/applied-ethology/Bottle-raised males can be very dangerous.pdf
Quote:
surrogate mothers and then later in life w
ill direct their sexual behaviour towards the
surrogate species. If humans become the su
rrogate species it creates a potentially
dangerous situation. When the male reach
es sexual maturity, in addition to his
misdirected attraction, he will ha
ve bouts of male aggression
that he will direct against
his human “competition”. Male aggression is a normal part of sexual behaviour. In
nearly all our livesto
ck and wild species (horses, dogs
and cats may be the exception)
bottle raised intact males will show aggre
ssion towards humans when they reach sexual
maturity.
Most people mistakenly believe that dairy bulls
are dangerous because of their genetics.
It is true that most dairy
bulls are dangerous, but it has
more to do with their rearing
conditions then their genetics. Most dairy bulls are hand reared
in isolation which
contributes to their behaviour towards humans when they become adults. Dr. Ed Price, a
behaviour researcher from the Un
iversity of California at Davis, has shown that Hereford
bull calves raised in isolation and hand fe
d by humans became dangerous to people when
they reached adulthood, whereas
their group raised counterpa
rts where not mean towards
people.