
Chicken breast and rice is not very nutritious for a pregnant bitch.
There are some useful suggestions above that are safe for you to use.
I would suggest that you feed some green tripe, (full of good nutrition) this has natural pro-biotic benefits and the previously mentioned some Natural live yoghurt.
GREEN BEEF TRIPE.
Raw green tripe offers beneficial bacteria and enzymes. It has a desirable
Calcium: phosphorus ratio of 1.1. Green tripe’s pH is acidic, the protein is 15.1% and the fat is 11.7%. It also has the correct proportions of Omega-3 and Omega-6 fatty acids.
One of the best constituents of raw green tripe is lactobacillus acidophilus. This is one of the intestinal bacteria that keep unwanted bacteria such as
e-coli, salmonella, and listeria from over populating and causing health problems.
A balance of micro flora in the gut is extremely important to maintaining good health. These pro biotics help keep the animal’s immune system in top shape.
Digestive enzymes. The enzymes that help the ruminant digest its meal will give the pet the same benefit. Dogs and cats do not naturally produce amylase, so the nutrients present in vegetative matter are not readily available to them. Raw green tripe contains these digestive enzymes.
It contains the following vitamins and minerals along with other naturally occurring goodness:
Vitamin E, Riboflavin, Niacin, Folate, Vitamin B12, Pantothenic, Acid, Choline, Iron, Magnesium, Phosphorus, Potassium, Sodium, Zinc, Copper, Manganese, Selenium.
SIMPLY DEFROST and FEED. Do not cook the tripe it stinks! Cooking the raw product can destroy/alter the benefits of the raw product.