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
2023-07-05
67
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] What is the best title for this article?
选项
A、The seriousness of Literia
B、Protection of the poultry
C、The New Discovery about Vitamin E
D、Research in the Universities
答案
C
解析
主旨题。通读全文可知,整篇文章都在讲术关于维生素E的新发现,即可以防止李氏杆菌病。故答案为C。
转载请注明原文地址:https://tihaiku.com/zcyy/2810657.html
相关试题推荐
[originaltext]Aboutfiftydifferentvitaminshavebeenidentified,andade
[originaltext]Aboutfiftydifferentvitaminshavebeenidentified,andade
ResearcherssayextravitaminEfedtoturkeysappearstohelpcontrolinfec
ResearcherssayextravitaminEfedtoturkeysappearstohelpcontrolinfec
ResearcherssayextravitaminEfedtoturkeysappearstohelpcontrolinfec
ResearcherssayextravitaminEfedtoturkeysappearstohelpcontrolinfec
ResearcherssayextravitaminEfedtoturkeysappearstohelpcontrolinfec
[originaltext]Vitaminsareessentialtolife.Todaytherearemanykindsof
Whydoescreamgobadfasterthanbutter?Someresearchersthinkthatitcom
Whydoescreamgobadfasterthanbutter?Someresearchersthinkthatitcom
随机试题
ThisisaconversationbetweenBillPeterandSusanJackson.1.SusanJacksoni
ItisnotthatIdonotlikeplays.ThereasonwhyIdidnotgotothetheaterl
雷尼替丁的化学结构是A. B. C. D. E.
在其他条件相同的情况下,下列关于不同发展阶段对股利政策选择的表述,正确的有(
木瓜蛋白酶水解IgG所获片段中,能与抗原特异结合的是A、Fab段 B、Fc段
银行从业人员在实际个人理财业务中,为客户进行投资组合设计时,除了考虑客户风险特征
患者纳呆腹胀,胁肋胀痛,便溏不爽,泻后痛减,每遇气恼则泄泻加重,舌苔白,脉弦。其
总分类账户统驭和控制所属明细分类账户,明细分类账户从属于总分类账户。
()指的是为了确保社会公正,站在服务对象或者受助团体的立场上,直接从事代表、捍卫
项目团队能力的培育包括()方面。A.提高团队自我完善的能力 B.提高项目
最新回复
(
0
)