Sentence:  With regards to the testing of his product, the initial blood analysis had come back confirming huge, distinctive nutritional superiority for Stewart's military ration pack. Given that the policy of the British Army is to be fully ready for war at the drop of a hat, he was sitting on the potential of supplying new <WSD>rats</WSD> for the entire army ... 
Meaning of the word marked with <WSD> tags:  A ration.