i have a male symurgh that has a genetic power  1. what should i  charge to put him on the breeding page?

Whatever you feel he's worth.  Keep in mind that he doesn't have a lot of genes researched and, with at least two "negative" genes, more people will be hesitant to breed with him.

Personally, my advice is to hold on and keep leveling him to the max (Lv. 50).  That way, he's more likely to produce other hero's offspring.  The same actually goes for all of your creatures.

I agree with MollyOKami here about the genes. His parents have great genes like Fragrance and Song of Peace. He will worth a couple of tries if he inherited them so with a dash of luck he can produce great offsprings. But what if he didn't get these genes and have only negatives (except Fertility which is valueable only if he has other good genes)? I'd research his genetics first and then decide if he worth levelling or not to become a good stud.