NSW greyhounds continue to suffer injuries at similar rates to historical levels despite promises the sport had reformed its approach to animal welfare, new figures suggest.

Greyhound industry figures identified 205 injured and 13 killed dogs in the seven weeks after Premier Mike Baird announced the sport would be banned from next July, and despite the industry having vowed since last February to overhaul its approach to animal welfare.

The figures come as the greyhound industry took its first steps in a constitutional challenge to the Baird government's ban on Tuesday.

More than 200 dogs were injured across about 120 different race meetings between July and September.