a question

[Vincent Men]

Can ''that of" be omitted in this sentence?

In 1910, thanks to its unsurpassed working ability, the breed(rottweiler) was officially recognized as that of a working dog.

If not, what's its function in this sentence.

thanks in advance.

 

[2006]

Can ''that of" be omitted in this sentence? yes

In 1910, thanks to its unsurpassed working ability, the breed(rottweiler) was officially recognized as that of a working dog.

If not, what's its function in this sentence.

thanks in advance.

2006