The Norwegian government has responded to the crisis by reducing tariffs on milk product imports, the country's agricultural authorities said.

CNN: Prices spike as butter shortage spreads through Norway

Health and agricultural authorities in Shanghai said on Monday they were investigating any potential health impact from pigs found floating in the Huangpu River and nearby waters in recent days, as well as how they got there.

WSJ: Floating, Dead Pigs Repulse Shanghai

Speaking at a Friday news conference in Shanghai, Shao Linchu, a deputy director at the Shanghai Agricultural Commission, said local authorities had slaughtered more than 20, 000 birds at a market in the suburb of Songjiang on Thursday night, and were investigating the origin of infected pigeons discovered there.

WSJ: Concerns Grow About New Avian-Flu Strain

Speaking at a Friday news conference in Shanghai, Shao Linchu, a deputy director at the Shanghai Agricultural Commission, said local authorities had slaughtered more than 20, 000 live birds at a wholesale market in the suburb of Songjiang on Thursday night, and were investigating the origin of infected pigeons discovered there.

WSJ: China Kills Market Birds as Avian Flu Deaths Rise

The Huangpu River is fed by numerous waterways that begin in the industrial agricultural provinces of Zhejiang and Jiangsu, where Shanghai authorities suspect the animals originated.

WSJ: Floating, Dead Pigs Repulse Shanghai

In February 2009 the Cuban authorities announced that 1, 827 square miles of state land would be given to Cubans with agricultural experience or other citizens.

CNN: Can the West cultivate ideas from Cuba's 'Special Period'?