US poultry industry officials have revealed relief that a six-month trade dispute between the US and the Russian Federation has been resolved.   "We're pleased that negotiators for the US government and the Russian Federation have reached a satisfactory agreement on the poultry trade between the two countries," said George Watts, president of the National Chicken Council. "US chicken companies will move immediately to implement the agreement and rebuild the trade, which has been subject to cutoffs and regulatory uncertainty for the past six months.