生猪：3日主力合约跌0.81%，供需宽松价格偏弱

Market Overview - On June 3, the main pig futures contract 2509 opened slightly lower, peaked at 13645 yuan/ton, and closed at 1510 yuan/ton, down 0.81% from the previous day [1] - The total open interest increased by 3497 contracts to 162323 contracts [1] Supply and Demand Dynamics - The national average price for external three yuan pigs on June 3 was 14.36 yuan/kg, down 0.06 yuan/kg from the previous day [1] - Demand is weakening post-Duanwu Festival, with slaughterhouse orders decreasing and operating rates declining [1] - On June 3, the slaughter volume from sample enterprises was 144,300 heads, down 0.05 thousand heads from the previous day and down 0.7 thousand heads from a week ago [1] - Supply is expected to increase in June, with normal outflows from breeding farms and high weights maintained [1] Profitability and Costs - As of May 23, the average market selling price for 15kg piglets was 627 yuan/head, down 3 yuan from the previous week [1] - The average profit for self-breeding pigs was 138 yuan/head, down 31 yuan week-on-week; for purchased piglets, the profit was 93 yuan/head, down 25 yuan week-on-week [1] - The average slaughter weight as of May 23 was 129.38 kg, down 0.33 kg week-on-week, with a year-on-year increase of 2.91% [1] - The expected cost for self-breeding pigs was 13.09 yuan/kg, stable week-on-week; for purchased piglets, the cost was 15.06 yuan/kg, down 0.03 yuan/kg week-on-week [1]