First find the total amount of cleaner used for the dogs: 6 ounces/dog * 6 dogs = <<6*6=36>>36 ounces
Then find the total amount of cleaner used for the cats: 4 ounces/cat * 3 cats = <<4*3=12>>12 ounces
Then add the amount of cleaner used for each species to find the total amount used: 36 ounces + 12 ounces + 1 ounce = <<36+12+1=49>>49 ounces
#### 49