To start with feed one protein source (like chicken or turkey), one meat, for a week and keep a diary, slowly by week 2 introduce a new meat, (for example beef and beef GREEN tripe), combine for a week, and use this method to introduce other things like lamb, rabbit, etc.
See how your dog goes for a week. You will find you will become an expert at looking at dog poo as this is the best way of telling how your dog is doing. You will find that poos generally become smaller and better formed as they utilise more of the food that they are being fed. The perfect poo can vary in colour but should be like a small kickable non stick pellet.
For many starting out it can make a lot of sense to start with premade minces with everything already in it (a complete meal)
So what should I be aiming for? You want to aim to have a good varied diet, the more variety the better the balance and the less likely a chance of your dog missing out on something.
your aim [ratio]: 80% meat, 10% bone & 10% offal
Examples of things that are counted towards your 80% meat are: heart, tongue, cheek, skirt, off cuts, lung, diaphragm, trachea, gizzards, green tripe, brisket, stewing meat, fillets. Your 10% offal …. 5% liver do include liver – it’s essential. other 5% kidney, spleen, brain, testicles, pancreas.