● "Can i feed raw chicken to my 3 months old gsd puppy?"
Not until you learn that the breed's real name translates as German Shepherd Dog, with every word requiring a capital letter, and so having GSD as the abbreviation.
My current GSD (
http://www.pedigreedatabase.com/dog.html?id=1325022 ) was brought home at 8½ weeks old. I think she has had raw chicken wings every night since then - but certainly as of when the kibble supplied by her breeder ran out.
The people who have advised you are mostly such nervous Nellies that they must have experienced very poorly bred pooches. Dogs developed as opportunistic carnivores with stomach acid much stronger than ours, and so they thrive on carrion, and they do NOT require tapering off from one diet to another.
The Diet Sheet that buyers of my GSD pups find on the back of their pet's pedigree is at
https://groups.yahoo.com/neo/groups/GSD_Friendly/conversations/messages/16078
You have to learn to "feed by eye" so far as amounts go.
I am not a fan of kibbles, but I do use big dog biscuits that have the same recipe as do kibbles.
My Bea still likes to eat 3 times a day:
◊ breakfast = dog biscuits in cow's milk - and she laps every drop of milk before bothering with the dog biscuits. When she was little, the actual kibble was used until it ran out, and I mixed all those powders into the milk. As part of "feed by eye", I remove the dish as soon as the pooch leaves it - EXCEPT when it goes to investigate whatever made that noise (I deliberately drop things near the pups), followed by dashing back to finish the meal.
◊ snack = a little commercial dog sausage - probably no thicker than 12mm/½" now she's adult.
◊ supper = biscuits (in the enriched milk while a pup; the milk supper is discontinued for adults except while they are pregnant or nursing), plus raw meat on the bone (currently chicken wings, sometimes with some heart or kidney or liver in it). But when shark or beef or goat or mutton or venison is cheap I switch from one to the other as soon as the first one runs out. And there should be a "gnaw bone" last thing every night - knobbly things like some oxtail or sheep's spine - partly for helping teething, largely for cleaning the teeth and supplying the perfect balance between calcium & phosphorous plus strengthening the facial muscles that control the ears - and especially for giving pooch something to do while you are boringly asleep.
Add
https://groups.yahoo.com/neo/groups/The_GSD_Source/info
to your browser, so that you can easily look up all sorts of information about dogs, especially GSDs. "Thanks to" Yahoo's /neo/-nut programmer, the settings have been changed from "Open" to "Restricted", so you'll need to apply to Join by sending an e-mail to
the_gsd_source-subscribe @yahoogroups.com
(WITHOUT the gap before the @ ) then following through.
To discuss GSDs, join some groups such as
https://groups.yahoo.com/neo/groups/GSD_Friendly/info
The people in them KNOW about GSDs. Plus you can include actual photos in your posts.
To find other groups or breeds, type the breed-name into the top field of
https://groups.yahoo.com/neo/dir
then choose a couple of groups to Join.
King Les The Lofty - first pup in 1950; GSD breeder & trainer as of 1968