Originally, Labradoodles were bred using only two breeds - Labrador Retriever and Poodle.  This type of breeding is still being done today by many people.

• F-1 = A first generation Labradoodle created by breeding a Labrador Retriever and a Poodle.
• F-1b = A F-1 bred back to a poodle.
• F-2 = A first generation Labradoodle bred back to another first generation Labradoodle.

But...

     many years ago, breeders in Australia, Tegan Park Breeding and Research Centre and Rutland Manor Breeding and Research Centre were trying to consistently produce allergy friendly dogs using this formula.  They believed that working with only two breeds was too limiting and began infusing other breeds into the recipe.  Slowly, through careful breeding and a keen eye for mutations of the genes that would produce the desired results, the centers began to have consistent success using up to six different breeds.  Angela Cunningham of Tegan Park and Beverley Manors of Rutland Manor are the co-founders of the Australian Labradoodle.  Together they have built a breed type that has taken the world by storm.

The name Labradoodle was retained because the foundation is and will always be the Labrador and Poodle.  But, in order to differentiate between lab/poodle cross breeds and the dogs that were developed by the aforementioned breeding centers in Australia, the term Australian Labradoodle is now being used.

Definitions used herein:

ASD = 100% Rutland Manor & Tegan Park (the founders of the breed) lines.
 

LO = Labradoodle Origin (prior to 6 generations).
1 - 6 = Generation
pp = Parent Breed Poodle
L = Purebred Labradoodle
ALF = Australian Labradoodle Foundation (An ALF is made up of at least 3 parent breeds).
1 - 6 = Generation
pp = Parent Breed Poodle
pr = Parent Breed Labrador Retriever
ps = Parent Breed Cocker Spaniel

Breeding any generation dog to a dog below its generation will result in the puppies carrying one above the lower generation dog.
 
Grade Description Result from Breeding
 
LO1 First generation Labradoodle Origin Labrador Retriever x Poodle (LO1 is also known as F1)
LO2 Second generation Labradoodle Origin LO1 x LO1 generation or higher (LO2 is also known as F2)
LO2pp Second generation Labradoodle Origin Poodle cross LO1 x Poodle (LO2pp is also known as F1b)
LO3 Third generation Labradoodle Origin LO2 x LO2pp or LO2 x LO2 generation or Higher (LO3 is also know as F3)
LO3pp Third generation Labradoodle Origin Poodle cross LO2 x Poodle
LO4 Fourth generation Labradoodle Origin LO3 x LO3pp or LO3 x LO3 generation or higher
LO4pp Fourth generation Labradoodle Origin Poodle cross LO3 x Poodle
LO5 Fifth generation Labradoodle Origin LO4 x LO4pp or LO4 x LO4 generation or higher
LO5pp Fifth generation Labradoodle Origin Poodle cross LO4 x Poodle
LO6/L1 Sixth generation Labradoodle Origin or Purebred Labradoodle LO5 x LO5pp or LO5 x LO5 generation or higher. An LO6 would be classified as a purebred Labradoodle, which is graded L1.

ALF2 Second generation Australian Labradoodle LO1 x ALF3 generation or higher
ALF3 Third generation Australian Labradoodle ALF2 X ALF2 or LO2 x ALF3 generation or higher
ALF3pp Third generation Australian Labradoodle Poodle cross ALF2 x Poodle
ALF4 Fourth generation Australian Labradoodle ALF3 x ALF3 or ALF3pp x ALF3 or LO3 x ALF3 generation or higher.
ALF4pp Fourth generation Australian Labradoodle Poodle cross ALF3 x Poodle
ALF5 Fifth generation Australian Labradoodle ALF4 x ALF4 or ALF4pp x ALF4 or LO4 x ALF4 generation or higher.
ALF5pp Fifth generation Australian Labradoodle Poodle cross ALF4 x Poodle
ALF6 Sixth generation Australian Labradoodle ALF5 x ALF5 or ALF5pp x ALF5 or LO5 x ALF5 generation or higher.
ALF6pp Sixth generation Australian Labradoodle Poodle cross ALF5 x Poodle