Bella is a very sensitive Collie x Lab (amongst others I think!), any unusual noise she is off to find somewhere to hide!
I got Roxy (Lab mix) in July, she is now 9 months and a very confident dog, quite the opposite to Bella.
Here's the problem: At meal times I feed them in seperate rooms as Roxy will steal Bella's food - sometimes Bella will guard her food other times she will let Roxy have it.
If Bella is eating and she hears a noise coming from the room Roxy is in she will walk away from her food and not go back. I try everything to get her to eat as she is already a very slender dog and really can't afford to lose any weight, some days she has less than half the food she should have
I really don't know how to handle the situation and I have run out of ideas, has anyone experienced this or anyone got any suggestions???

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I strive to be the person my dogs think I am...

Will Bella eat if left alone in the house while you take Roxy out for five minutes walk?

Half the portion of food so there is a greater chance of eating it before a noise occurs - then feed the second half a bit later.

Can you "occupy" Roxy with a nice raw bone while feeding Bella.