The pair move on as manager Ady Pennock continues to prepare his squad for the second half of the campaign.
Moore (pictured) joined Barrow last summer following his release by SkyBet Championship side Reading and has featured eighteen times for the Bluebirds this season - his last appearance came in the home fixture against Dagenham & Redbridge in early December.
Tanzanian front man Yussuf joined from League Two outfit Grimsby Town at the end of July and after scoring on his debut away at Stockport County in a friendly.
He has played twenty-two times in the National League this season, scoring 6 goals.