Rumbling

[Gustavo]

So my piggies have been together since June when I got timmy. I recently have been noticing that gustavo has been rumbling at him and today he jumped on him. They’ve been fine before I’m not sure why he’s suddenly doing this, Gustavo will be one in 4 days so he’s not that much older than my other piggy. Is this anything serious? I haven’t noticed any serious fighting between them but it’s kind of concerning.

 

[Wiebke]

So my piggies have been together since June when I got timmy. I recently have been noticing that gustavo has been rumbling at him and today he jumped on him. They’ve been fine before I’m not sure why he’s suddenly doing this, Gustavo will be one in 4 days so he’s not that much older than my other piggy. Is this anything serious? I haven’t noticed any serious fighting between them but it’s kind of concerning.

Hi!

Your boys are all still teenagers, so what Gustavo exhibits is normal for a hormone spike. Rumblestrutting is minor measuring up and dominance behaviour, as it mounting. The very quiet boys often only 'wake up' hormonally when you are out of the very worst with the more active ones and when the clear personality mismatches have long since had their fall-outs and even fights.

Here is more information on teenage and on dominance behaviours:
Boars: Teenage, Bullying, Fighting, Fall-outs And What Next?
Dominance Behaviours In Guinea Pigs