First of all - rest assured that you are certainly not alone with this issue
. That's the most common road block that we run into when we start to introduce food rewards. How long do you use food rewards? And have you changed anything in how you give them to Pan lately? Can you pinpoint the day when it started to get worse?
Personally, it always helps me when I try to analyse a behaviour most thoroughly. What am I doing? What is the horse doing? What precedes the behaviour? What follows immediately afterwards?
TakeItEasy wrote:
If he finally turns towards me then he gets his reward.
Did you mean when he turns away from you, or really towards you? If so, I would suggest to reward him only for turning away from you. Otherwise you would basically teach him to mug you
.
You can also try to ask a step backwards before every treat. Or when you stand beside him, wait until he has turned his head away from you, before you reward. You can also give the reward only at the end of a stretched arm, thus mugging won't help him, as the treat is far away from your body.
If the biting is so unpleasant that you feel like you want to move away from him with every nip, it may be reinforcing for him to see you move from him. That may make the behaviour stronger. You could practise simply the giving of treats over a barrier like a fence, so that he has no way of crowding you, but you can give him rewards if he waits patiently and turns his head away from you.
Do you use a clicker, or a marker word to mark the behaviour before you give a treat? Not that it is necessary for reward based training (as Romy proves excellently), but it gives the food delivery process more structure. Thus the horse knows better when he can expect a treat and when not.
Generally though, these things take time to sink in - some horses (like our Lily for example) get very excited by the mere possibility of a food reward that they may take longer to become calm with this type of training
.
With Romy there to help you out, I'm sure you'll figure out a way to improve Pan's food manners soon
.