Some 7m animals died, wiping out many families' entire herds and so their livelihood.
They were a favourite of Peter Rabbit creator Beatrix Potter, who kept her own herds.
Until quite recently, there were 30 or 40 pastori and their herds on these particular peaks.
Farmers are culling their pig herds to avoid the future higher costs of feeding them.
They like being in herds, and so they'll go in search of each other.
But the internet is also a series of pastures containing fairly docile digital herds.
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Eight EU countries are testing foodstuffs and pig herds for the presence of the hormone.
In eastern Nepal, herds of wild elephants continue to rampage, demolishing human settlements and raiding crops.
Inside are vaulted galleries full of large sculptures: female forms, Buddhas, herds of sheep.
The rare black-faced impala is often viewed here too, as are herds of Gemsbok, wildebeest, zebra, giraffe and rhino.
While the exact route changes every year, the herds will inevitably have to cross the Mara and Talek rivers.
Barbed wire allowed ranchers to better contain their cattle herds and secure property claims.
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There are giraffes aplenty, herds of antelope too, and wild pigs, monkeys, jackals and brilliantly coloured birds.
Briney corrals herds of carp into a line of seven 100-yard-wide nets using his 300hp outboard motorboat.
The dry weather parched pastures and drove up feed costs, forcing many ranchers to cull their herds.
Government officials determined the annual hunt must continue, since it helps control the size of elk herds.
Up to 18% of US cattle are thought to have the disease which mainly affects dairy herds.
He said the drought in Texas was severe enough for ranchers to cull herds, which has lower supply.
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The annual rains fill up the gueltas, or ponds, with drinking water for nomadic animal herds and insurgents.
That collapsed a decade ago, its herds and land split up among families.
Government officials say the decline, which has yet to be fully validated, is due to increased testing of herds.
China's exports of maize are shrinking, as its herds multiply to cater to its citizens' growing appetite for meat.
There is also a network of perennial waterholes that draw large herds of game from the arid savannah grassland and thorn scrub.
The African elephant may still be at risk elsewhere, but in Zimbabwe, Namibia and Botswana the herds are healthy.
The authorities have slaughtered affected herds, and are trying to contain the outbreak.
But milk production has not fallen as a result, since herds have grown and milk yields have increased in cows.
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"I was in California over ten years ago and they had herds of eighteen to twenty thousand cows, " he said.
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By getting grazing cattle to stay in larger, tight herds, Savory was able to restore grassland vitality and increase grass biodiversity.
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We used to roam the wide plains of the Midwest and the open spaces of the American Southwest in vast herds.
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Another problem is that farmers are deciding not to rear replacement cows for their herds, putting future milk supplies under threat.
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