Bulldogs World

Cottage Cheese is high in sodium so not necessarily the best option, but you can use it in moderation. If he doesn't like it then I would find something else.  I personally prefer to use a probiotic powder instead of yogurt.  I have been told that you can't possibly feed enough yogurt to get the benefits needed, not sure how true that is.  Also dogs can become lactose intolerant. My Cleo is and pukes if she is fed any kind of dairy. 

Have you considered finding a quality canned food to mix with his kibble or it may be time to find a kibble that he likes.  When I've had to feed canned food (ie after surgery) I have always had good luck with Merrick.

Is he still on puppy food? 

to add anything at 10 weeks. It will definitely upset the tummy and system, making soft stools.  Feed 3 smaller meals a day. He will eat when he is hungry and if he doesn't eat in 15 minutes pick up his food and save it for the next meal.  If you start adding stuff now he will learn quickly that if he doesn't eat he gets special goodies and that can lead to a picky eater. Add some warm water to his food and let it sit for a few minutes to soften it.  Are you feeding what the breeder had him on? 

it contains LOTS of sodium and that can lead to fluid retention that will make his heart work even harder. You know how MD's are always telling heart, high blood pressure and diabetes patients to stay away from salt!

Something I gave my boy that had all the heart problems was dried dandelion leaves. It is a mild diuretic and assists in not allowing excess fluid to accumulate. Dried dandelion leaves are available at any Health food store, of course you could collect and dry your own, just be sure no chemicals have been applied to them (think lawn care products).