I've got second ryori from candys a few minutes ago. How get higer stats or more visible genes&mutations?

You can increase your pet's stats by battling with them to increase their level. Stats increase with each level they gain. Once they hit certain levels you can also give them a proficiency point (which you can add on their profile page) that will increase their stats in the stat of your choice.

There are items you can use to give pets new/different genes. Your options for this are limited, though, depending on the type of pet and the genes already displayed. It'd be easier if you linked to the pet you want to change as well as tell us what you want to change on it.

I mean before i start leveling xD on 0lv
https://www.sylestia.com/view/pets/?petid=4475542

I thinking... its anyc hance to have 100% for male? any item? how much cost?

you can't get a max stat out of it infortunately, max stating take severals generations of selected breeding until you get the perfect pet. You can however increass their stat via a philter and nurriture click once it hatch.

You can get close to max stat from brew pets or other event similar by boosting their stat before the creation of the egg and then using a prismatic to add to that. If you then ask for nurriture click it is possible to get it in the 90 range evrywhere or even a bit higher. I wanted to see if this was a possibility and this was my result: https://www.sylestia.com/view/pets/?petid=4457137
i attuned her to fire so some of her stats are increass from that, the stat in parentesis are the one you nead to be looking at. ^-^

choose breed what i want i cant too?

i don't realy understand the question but if you are asking about how to breed a max stat there is a guide here.

If you are asking if the breed have an impact on the stats the answer is yes and no, yes because fabled have naturaly better stats then non fabled and no because all speacies can be turne into a max stat project. The speacie in itself dosn't dosn't realy impact that mutch the stats, just if it is a fabled speacie or not.

no no, not breedig... um...

egg have "Gender: Unknown", this change to female or male.. is any item/way what give me 100% sure to change into "Gender: Male"?

you can't decide that in advence unless you 'make' the pet, there are gender swaping philter that allow you to change the gender of a pet or you can trade it with another player that have one with the wanted gender. Both solutions have pro and con:

genderswaping philter :

pro:
- you still have the exact same pet (traits + stats) but with the wanted gender
- no nead to run around to find someone you may want to trade with
con:
- very expensive
- may require you to buy it with diamonds


Trade:

pro:
- If you don't like the traits of your pet, it can give you an opportunity for somthing better
- do not cost gold / diamonds
con:
- you nead to find someone that actualy want your pet (depending of the traits it can be difficult)
- if you like the traits you have on it you may not be able to find another with similar look to trade with

There is no way to pre-determine what gender an egg will have unless it is made in a festival. If you want it to have a different gender than what it has now, you can purchase a philter of gender swapping from the diamond shop.