A couple of homemade formulas for feeding kittens fron new born until of sufficent age.
Generally, an egg yolk mixed with about 100 grams blue top milk fed about .5 to a mil at a time hourly or 2 hourly. It only needs enough to gain a wee bit of weight until it can feed itself, not to be forced fed! but able to take the portions in it's own way.
One can use a very light dab of corn syrup on the inner mouth to be absorbed through it's own membranes then after 2 to 3 days - switch to kitten formula.
Warning, do not be in a hurry to do this unless it is absolutely necesary, allow the new born kitten every oportunity to try and suckle mum.
At all times, the new born kitten must be kept warm!