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
63
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
InternationalPublishingHouse119S
孟德斯鸠的政治理想是()。A.民主共和制 B.君主立宪制 C.君主专制 D
下列各项中,原始凭证不是按照格式分类的有()。A、通用原始凭证 B、累计原始
房地产市场调查方法中,()是指将调查范围缩小到一个比较小的规模上,进行试验后得
下列关于城市社会结构的表述,错误的是()。(2019年真题)A.社会分层反
某种规格的轴,其直径要求为18±0.2mm。长期检验结果表明,其直径均值为μ
以下属于萎缩性胃炎典型内镜下表现的是A.黏膜苍白或呈花斑样 B.黏膜变薄 C
银监会对金融机构高级管理人员的任职资格进行审查核准属于监管措施中的()。A:市场
下列各项中,属于会计职业道德中“客观公正”的基本要求的有()。A:依法办事B:
对于戊型肝炎,以下错误的是A.其病原体为HEV B.以粪-口传播途径为主 C
最新回复
(
0
)