If a Birman cat has insufficient milk, it can be treated with traditional Chinese medicine to promote lactation. Under the advice of a veterinarian, take 20 grams of the lactation-promoting herb *Ligusticum striatum*, 10 grams of *Tetrapanax papyriferus*, and one pair of pig's trotters, boil them until tender, add 50 grams of brown sugar and 25 ml of rice wine, feed the cat once a day for 3-5 days.
If a Birman cat is producing insufficient milk, you can supplement its diet by feeding it protein-rich soups. For example, boil 100-150 grams of small crucian carp into a soup and feed it to the mother cat in two meals for one week. Alternatively, mash 100-150 grams of rice into a shrimp paste, add water and cook, then add 50 grams of rice wine and feed this to the mother cat once a day for 3-5 days. You can also feed the mother cat goat milk or diluted food. Feed her cow's milk, goat's milk, or eggs mixed with water or soy milk to make a thin paste. Besides these methods, if the mother cat is still not producing enough milk, you can buy kitten formula to feed newborn kittens instead of breast milk.
