Dear Dr. Fox: I am writing in regard to the letter in the paper about the strange behavior of the bulldog after spaying.
We have a 3½-year-old Akita that was recently spayed. Several days after the procedure, she began treating one of her toys as if it was her "baby." She was extremely overprotective of the toy. She would growl and become upset when anyone would go near it and would often attempt to bury it under couch pillows or bed liners.
I know this will sound bizarre, but I had gastric bypass surgery two years ago, and I started exhibiting similar symptoms: I had a strange desire to eat things such as concrete, paint, rocks and drywall. It turns out I was severely iron-deficient, and these items contained certain minerals that I was lacking. After much research, I found this is actually quite common. Could this be a similar issue with my dog?
K.F., West Haven, Conn.
Dr. Fox says: Thank you for your interesting observations.
Your Akita probably experienced a hormonal surge from the pituitary gland after her reproductive organs were removed. The animal (and human) body is a complex matrix of regulatory feedback mechanisms that can be disrupted by various surgical procedures.
As for your desire to eat rocks and similar material, this is common in pregnant women, and dirt eating in dogs is one indicator of anemia.
The body's nutritional wisdom is quite remarkable to the degree that sheep, for example, will choose to graze on vegetation treated with copper salts in areas where the soil is deficient in this essential mineral.