首页
登录
职称英语
Researchers say extra vitamin E fed to turkeys appears to help control infec
Researchers say extra vitamin E fed to turkeys appears to help control infec
游客
2024-02-06
37
管理
问题
Researchers say extra vitamin E fed to turkeys appears to help control infections from listeria(李氏杆菌). People who eat foods that contain this bacteria can get listeriosis(李氏杆菌病).
This disease is especially dangerous to pregnant women, newborn babies and people with weakened defenses. The United States has more than two thousand cases of listeriosis each year and five hundred people die of it. Some cases have been linked to poultry(家禽)products that have not been cooked enough. The researchers found that vitamin E improved the ability of turkeys to fight the growth of listeria. The findings could help other meat industries as well.
Irene Wesley led the study for the United States Department of Agriculture. Researchers from Iowa State University and the University of Arkansas also took part. The findings appeared in Poultry Science magazine earlier this year.
Vitamin E is found in oils from vegetables, grains and animals. It helps protect some kinds of fatty acids that are necessary for healthy cells. Vitamin E helps prevent oxygen from combining with these fats to cause damage to cells.
Turkeys need vitamin E for normal development. But the scientists added extra amounts to the diet of two groups of turkeys. The birds were one day old. Two other groups were not given any extra vitamin E. After six weeks, the researchers infected all the young turkeys with listeria. The scientists then tested the birds for the presence of the bacteria over a period of time.
The results showed that the birds that received extra vitamin E did not get infected as often as the others. The birds that received the largest amount had the lowest number of infections.
The scientists say vitamin E has a similar effect on chickens. They say chickens and turkeys that receive added vitamin E develop more infection-fighting cells called lymphocytes. The increased number of these cells appears to also help protect against other diseases that can be carried by birds.
The scientists continue tests. They want to see if vitamin E can stop other dangerous bacteria that can enter food. They are testing it against salmonella and Campylobacter. [br] Who took part in the research?
选项
A、Researchers from the University of Arkansas.
B、Researchers from Iowa State University.
C、Irene Wseley.
D、All the above.
答案
D
解析
细节题。根据短文第三段内容可判断出参与此研究的包括A、B、C三项,故D选项All the above正确。
转载请注明原文地址:https://tihaiku.com/zcyy/3425955.html
相关试题推荐
[originaltext]Recentlysomeresearchersconductedaninterestingcasestudy
Whydoescreamgobadfasterthanbutter?Someresearchersthinkthatitcom
Whydoescreamgobadfasterthanbutter?Someresearchersthinkthatitcom
Whydoescreamgobadfasterthanbutter?Someresearchersthinkthatitcom
Whydoescreamgobadfasterthanbutter?Someresearchersthinkthatitcom
Whydoescreamgobadfasterthanbutter?Someresearchersthinkthatitcom
Theneedforbirthcontrolmethodshasdevelopedfairlyrecently,withthed
Theneedforbirthcontrolmethodshasdevelopedfairlyrecently,withthed
Theneedforbirthcontrolmethodshasdevelopedfairlyrecently,withthed
Theneedforbirthcontrolmethodshasdevelopedfairlyrecently,withthed
随机试题
Asaphilosophicalandliterarymovement,______flourishedillNewEnglandfrom
Therailwaystationwascriticizedforitslackofdisabled______.A、equipmentB、
【B1】[br]【B16】A、signsB、gesturesC、signalsD、marksC近义词辨析题。signal与make构成动宾搭配,用来
某售楼部对上个月销售业绩(销售商品房套数)的统计显示:销售员人均销售商品房不少于
血液凝固的内源性激活途径与外源性激活途径的主要差别在于A.因子Ⅹ的激活过程 B
中国药典的英文缩写是()。A.USP B.BP C.ChP D.EP
王阿姨在门诊候诊时,突然腹部疼痛难忍,恶心、呕吐,腹部压痛、反跳痛明显、体温升高
男,42岁。右腰痛5年,查B超:右肾积水中度;腹部平片可见右中段输尿管结石1.2
在建设工程项目施工作业实施过程中,监理机构应根据()对施工作业质量进行监督控
最新回复
(
0
)