howdy, basically in 6 weeks time we are going on holiday for 6 weeks and want to know the ins and outs of leaving your little ones

i know there was a post about it somewhere but am having problems finding it.
My little brother will be staying at our flat and looking after all our animals. We know we have to get them used to him before we go away and will be going through all their care and such with him before we go. Here is our questions though:-
1) will the 2 weeks away effect the bonds we have with our lil family that we would have made over the 8 weeks we will have had them?
2) im assuming it will be good for my little brother to still do tent time and such with them while we are away, am i correct? and would the fact he spends a load of time with them effect the bond we have with them?
i cant think of any other questions at the moment, but if people have any ideas to make its easier for every one let me know.
Thank you much
