I was hoping to get a response back to my information request before responding but I don't want you to not have an answer either.
I'm a firm believer in obedience training which you can start at home. It helps control a dog and helps stop aggressive behavior as well. The following site is helpful in helping owners train their dog. Be sure and click on the link to the page on obedience at the bottom. and links on subsequent pages leading to detailed instructions.
Training works best if you train at least 30 minutes a day (two 15 minute sessions). I also believe in the Nothing in life is free program to help with aggression issues. I would start making your dog work via the Nothing in life is free program (NILF). It is outlined below.
There is a method called BAT that is helpful for aggression. Read more on this here:
Now there are trainers that deal with aggressive dogs in your area if you are in Dallas Texas. Here are a few of them.
USA Dog Behavior, LLC
Scott Sheaffer, CDBC, CPDT-KA
PETS & THEIR PEOPLE Dog Training, LLC
Melissa Knox, CPDT-KA
Phone:(###) ###-####br />Web: www.petsandtheirpeopleweb.com
Phoenix Behavior Consulting
Jerry Patillo, CPDT-KA
Phone:(###) ###-####br />Web: www.pbcdallas.com
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Since there have been recalls on certain foods, please check the following site to be sure the food your animals eat is not affected. If it is affected, contact your vet as soon as possible. Have your dog seen if they have any symptoms.