The Calgary Zoo said it worked with alternate bamboo suppliers to find a way to keep the giant pandas fed, but shipments were "slower than acceptable" and resulted in "poor quality bamboo" that the giant pandas wouldn't eat.
According to the zoo, 99 per cent of a giant panda's diet is made up of fresh bamboo, and each adult giant panda consumes approximately 40kg of bamboo daily.
The cubs then travelled home to China in January, leaving just their parents to wander the Calgary Zoo's Panda Passage exhibit. At the zoo fear that the supply situation will deteriorate even more in the case of the second wave of coronavirus. The pandas refused to eat bamboo brought from the United States, per the Calgary Herald.
Some 36.5 million Americans have lost their jobs in past 2 months
The state reported fewer layoffs last week in the transportation and warehousing, retail trade and construction industries. Continuing claims edged up to 22.8 million in the week ending May 2, a rise from 22.4 million, the latest data showed.
Much of the Er Shun and Da Mao bamboo ate before the pandemic was transported directly to Calgary from China, but those flights were canceled.
Surprisingly, for animals that do very little - "they eat, they sleep and they fart", said Lanthier - pandas are picky eaters and only eat parts of the bamboo plant, and only at certain points in the bamboo maturity process, when it's about two years old. If things drag on too long, warm summer temperatures make it more hard to transport the animals.
He added that he does not want the Canadian and Chinese governments to delay things, and that he expects to get an export permit next week. FedEx also flew Er Shun and Da Mao to Canada.
After spending five years at the Toronto Zoo, the two adult giant pandas were moved to the Calgary Zoo in March 2018 with twin cubs, Jia Panpan and Jia Yueyue, which travelled home to China in January.
Calgary's pandas had been among the zoo's most popular residents. "Conservation work with pandas should be occurring in China, not here", Laidlaw said.