Pork liver is rich in nutrients, has high protein content, and also contains high vitamins and trace elements. It can provide nutritional supplements to postpartum dog mothers and is of great help in producing milk. However, because the liver is the metabolism and detoxification organ of the animal body, the liver sometimes accumulates relatively high levels of harmful substances, such as Aspergillus aflatoxin, heavy metal elements, etc. These substances are harmful to the mother dog's milk.

So it is recommended that when buying pork liver, brownish-red color is the best. When feeding the dog's mother as supplementary food, the ratio of dog food to pork liver is 3:1. At the same time, it is necessary to create a good environment for the dog's mother.