Which parasite can cause anemia, particularly in puppies?

Hookworms are a significant concern for puppies as they can cause anemia due to their blood-feeding habits. These parasites attach to the intestinal lining and feed on the host's blood, leading to a reduction in red blood cells. This can result in clinical signs of anemia such as pale gums, lethargy, and a decrease in overall vitality. Puppies are particularly vulnerable to hookworm infestations because of their developing immune systems and potential for heavy infections.

While roundworms can also impact puppies, they are more typically associated with gastrointestinal upset rather than significant anemia. Tapeworms primarily cause weight loss and digestive disturbances without direct severe anemia. Whipworms can affect dogs, but they are often less associated with anemia compared to hookworms. Thus, hookworms stand out as the primary parasite responsible for causing anemia, especially in younger animals like puppies.