[00:00.10]From VOA Learning English, [00:02.59]this is the Agriculture Report. [00:05.50]Regulators in the United States [00:08.01]are asking companies that make antibiotic drugs [00:11.52]to tell farmers to stop using [00:14.72]some of the drugs on livestock. [00:17.37]Antibiotics are medicines [00:19.73]use to fight bacteria and infections. [00:23.67]Large animal farms around the world [00:26.63]often use small amount of antibiotics [00:30.12]to help healthy animals grow faster with less feed. [00:34.64]They put the antibiotics in the food and water [00:38.43]they give to cows, chickens and pigs. [00:41.86]Opponents of this use of antibiotic say [00:45.29]it adds to worldwide resistance to such drugs. [00:49.18]Public health experts say, [00:51.51]using an antibiotic on an animal gives bacteria the chance [00:56.44]to built double defense against the drug. [00:59.80]This makes antibiotics less effective [01:02.85]when they are used to fight diseases in humans. [01:06.77]Last month, the U.S. Food and Drug Administration [01:11.28]asked drug companies to voluntarily change the words [01:15.73]on the containers of antibiotics so far use in farm animals. [01:21.63]Michael Taylor is the agency's Deputy Commissioner. [01:25.64]"With these changes, there will be fewer approved uses, [01:28.68]and the remaining uses will be under tighter control [01:31.34]to minimize the impact on resistance," said Taylor. [01:33.91]The decision by the FDA to ask [01:37.06]rather than order the drug companies to make the changes [01:40.79]has angered some activists. [01:43.32]But the FDA said, changes would be made more quickly [01:48.24]if it ask the drug companies to voluntarily change [01:52.65]how they use antibiotics. [01:55.17]Dimitri Drekonja is a doctor [01:57.79]with the Infectious Diseases Society of America. [02:01.33]He supports the FDA's decision to ask for voluntary changes, [02:07.42]but he is not sure the drug companies [02:10.43]will do what the agency has asked. [02:13.57]"If this voluntary effort is taken up [02:17.15]by the entire industry and everybody goes along with it, [02:20.07]then it will actually be a needed first [02:21.58]and potentially last step. [02:23.19]Will that happen? I have my doubts," Drekonja added. [02:25.81]Some large drug companies have already agreed to make the changes. [02:31.03]Liz Wagstrom is the Chief Veterinarian [02:34.50]at the National Pork Producers Council. [02:37.66]He says the pig farming industry [02:40.88]is preparing for a change in the way it uses antibiotics, [02:45.99]even it will cost some farmers money. [02:49.26]"We may lose some efficiency. [02:51.01]We may have some animals that may not grow quite as quickly [02:54.19]or take more grain to reach their full weight, " said Wagstrom. [02:57.44]She also says the changes may mean [03:00.49]farmers will have more sick animals. [03:03.12]Doctor Drekonja says it may be difficult to measure [03:07.59]how the new policy affects drug resistances. [03:11.41]"It would be great if there was sort-of like a dashboard [03:14.03]and you could watch the needle drop [03:15.95]in the amount of antibiotics used and then watch the next gauge, [03:18.97]which is the national resistance and see what happens there. [03:21.73]We don’t have two simple gauges like that," Drekonja says. [03:24.67]He says there is a lack of good information [03:28.03]on the amounts of antibiotics used on farms, [03:31.61]as well as by doctors. [03:33.59]Some bacteria have continued to be resistant to drugs for years [03:38.91]even after they have been banned from animal use. [03:42.92]But doctor say they have been taking more steps [03:46.89]to limit their use of antibiotics with humans, [03:50.46]and they believe farmers should do the same. [03:54.33]And that's the Agriculture Report. [03:57.64]I'm Bob Doughty.