1 A cat has a total of 24 whiskers, 4 rows of whiskers on each side. The upper two rows can move independently of the bottom two rows.  Cats have 30 teeth (12 incisors, 10 premolars, 4 canines, and 4 molars), while dogs have 42. Kittens have baby teeth, which are replaced by permanent teeth around the age of 7 months.
Using current values for grass hay of around $85/ton, wheat straw should be worth about $40/ton, barley straw around $44, oat straw approximately $54, and pea straw almost $75/ton.
Botany and Plant Pathology, Purdue University. E-mail: lembi@purdue.edu. The use of barley straw for algae control has received a lot. of publicity in recent years. It is now common to find small. barley bales being sold in nurseries and garden shops for use in. water gardens and small pools to control algae. The word-of-. mouth reports of success with this method have led many people. to suspect that barley might also control algae in ponds and. lakes.