Tetracycline Residues in Porcine Stomach after Administration via Drinking Water on a Swine Farm

2014 ◽  
Vol 77 (1) ◽  
pp. 122-126 ◽  
Author(s):  
DANIELLE LINDQUIST ◽  
HUALI WU ◽  
SHARON MASON ◽  
JIM YEATTS ◽  
JIM BROOKS ◽  
...  

Tetracycline is a broad-spectrum antibiotic used to treat infections in swine. The maximum residue levels of tetracycline in pork stomach tissue in Russia, Europe, and the United States are 10, 200, and 2,000 ppb, respectively. This difference in accepted safety levels may be the reason why stomach tissues that the United States exports continue to be residue violators in overseas markets. In this study, 30 pigs at two different stages of production (weanling and finisher) were treated with tetracycline at 22 mg/kg of body weight per day for a total of 5 days via a water medicator. Blood samples were collected at 0, 72, 78, 96, and 102 h after the start of medication. The medication was stopped at 120 h, and blood samples were again collected at 126, 144, 168, 192, and 216 h after exposure. Five animals were slaughtered for stomach tissue 0, 24, 48, 96, and 192 h after the drug was flushed from the water line. All blood and tissue samples were analyzed by high-performance liquid chromatography–UV methods. The tetracycline levels in plasma were below the level of detection after the U.S.-labeled withdrawal time of 4 days. The stomach tissue residues averaged 671.72, 330.31, 297.77, 136.36, and 268.08 ppb on withdrawal days 0, 1, 2, 4, and 8, respectively. Using the U.S. Food and Drug Administration tolerance limit method and a population-based pharmacokinetic model with Monte Carlo simulation, a withdrawal interval was estimated. This study demonstrated that tetracycline residues are still detectable in the stomach tissues after the established United States withdrawal time of 4 days. These residue levels may explain why stomach tissues tested in Russia and Europe show positive residues for tetracycline, even though the meat may pass inspection here in the United States prior to export.

Author(s):  
M. Myint Lwin ◽  
Alexander D. Wilson ◽  
Vasant C. Mistry

<p>In 1992, the U.S. Federal Highway Administration (FHWA) initiated an effort with the American Iron and Steel Institute (AISI) and the U. S. Navy (Navy) to develop new high-performance steels (HPS) for bridges. The driving force for this project was the need to develop improved higher strength, improved weldability, higher toughness steels to improve the overall quality and fabricability of steels used in bridges in the United States. It was furthermore established that such steels should be "weathering". By this is meant the ability to perform without painting under normal atmospheric conditions.</p>


1983 ◽  
Vol 66 (6) ◽  
pp. 1534-1535
Author(s):  
Reo E Duggan ◽  
Paul E Corneliussen ◽  
Mary B Duggan ◽  
Bernadette M Mcmahon ◽  
Robert J Martin

Abstract The U.S. food supply was examined for pesticide residues during the 7-year period covering Fiscal Years (FY) 1970 through 1976. The results, which are contained in the report summarized here, are a continuation of an earlier report for the 6-year period FY 1964-1969.


2008 ◽  
Vol 36 (4) ◽  
pp. 629-643
Author(s):  
Karen Davis ◽  
Cathy Schoen ◽  
Katherine Shea ◽  
Christine Haran

On the eve of the presidential inauguration, the U.S. health system faces rising costs of care, growing numbers of uninsured, wide variations in quality of care, and mounting public dissatisfaction. Despite spending more on health care than any other country, a recent Commonwealth Fund Commission on a High Performance Health Care System National Scorecard reports that the United States is lagging far behind other major industrialized countries — all of which provide universal health insurance — in five key domains: healthy lives, access, quality, equity, and efficiency. U.S. national performance is well below benchmarks of top performance set by other countries or high performing states, hospitals, or health plans within the United States, with broad disparities in experience depending on geographic location, income, race/ethnicity, and insurance coverage. National leadership is required to manage the growing health care crisis in the United States and improve care for all Americans.


Author(s):  
Rosina Lozano

An American Language is a political history of the Spanish language in the United States. The nation has always been multilingual and the Spanish language in particular has remained as an important political issue into the present. After the U.S.-Mexican War, the Spanish language became a language of politics as Spanish speakers in the U.S. Southwest used it to build territorial and state governments. In the twentieth century, Spanish became a political language where speakers and those opposed to its use clashed over what Spanish's presence in the United States meant. This book recovers this story by using evidence that includes Spanish language newspapers, letters, state and territorial session laws, and federal archives to profile the struggle and resilience of Spanish speakers who advocated for their language rights as U.S. citizens. Comparing Spanish as a language of politics and as a political language across the Southwest and noncontiguous territories provides an opportunity to measure shifts in allegiance to the nation and exposes differing forms of nationalism. Language concessions and continued use of Spanish is a measure of power. Official language recognition by federal or state officials validates Spanish speakers' claims to US citizenship. The long history of policies relating to language in the United States provides a way to measure how U.S. visions of itself have shifted due to continuous migration from Latin America. Spanish-speaking U.S. citizens are crucial arbiters of Spanish language politics and their successes have broader implications on national policy and our understanding of Americans.


2018 ◽  
Vol 47 (3) ◽  
pp. 130-134

This section, updated regularly on the blog Palestine Square, covers popular conversations related to the Palestinians and the Arab-Israeli conflict during the quarter 16 November 2017 to 15 February 2018: #JerusalemIstheCapitalofPalestine went viral after U.S. president Donald Trump recognized Jerusalem as the capital of Israel and announced his intention to move the U.S. embassy there from Tel Aviv. The arrest of Palestinian teenager Ahed Tamimi for slapping an Israeli soldier also prompted a viral campaign under the hashtag #FreeAhed. A smaller campaign protested the exclusion of Palestinian human rights from the agenda of the annual Creating Change conference organized by the US-based National LGBTQ Task Force in Washington. And, UNRWA publicized its emergency funding appeal, following the decision of the United States to slash funding to the organization, with the hashtag #DignityIsPriceless.


Author(s):  
Richard F. Kuisel

There are over 1,000 McDonald's on French soil. Two Disney theme parks have opened near Paris in the last two decades. And American-inspired vocabulary such as “le weekend” has been absorbed into the French language. But as former French president Jacques Chirac put it: “The U.S. finds France unbearably pretentious. And we find the U.S. unbearably hegemonic.” Are the French fascinated or threatened by America? They Americanize yet are notorious for expressions of anti-Americanism. From McDonald's and Coca-Cola to free markets and foreign policy, this book looks closely at the conflicts and contradictions of France's relationship to American politics and culture. The book shows how the French have used America as both yardstick and foil to measure their own distinct national identity. France has charted its own path: it has welcomed America's products but rejected American policies; assailed Americ's “jungle capitalism” while liberalizing its own economy; attacked “Reaganomics” while defending French social security; and protected French cinema, television, food, and language even while ingesting American pop culture. The book examines France's role as an independent ally of the United States, but he also considers the country's failures in influencing the Reagan, Bush, and Clinton administrations. Whether investigating France's successful information technology sector or its spurning of American expertise during the AIDS epidemic, the book asks if this insistence on a French way represents a growing distance between Europe and the United States or a reaction to American globalization. Exploring cultural trends, values, public opinion, and political reality, this book delves into the complex relationship between two modern nations.


Author(s):  
Timothy Matovina

Most histories of Catholicism in the United States focus on the experience of Euro-American Catholics, whose views on social issues have dominated public debates. This book provides a comprehensive overview of the Latino Catholic experience in America from the sixteenth century to today, and offers the most in-depth examination to date of the important ways the U.S. Catholic Church, its evolving Latino majority, and American culture are mutually transforming one another. This book highlights the vital contributions of Latinos to American religious and social life, demonstrating in particular how their engagement with the U.S. cultural milieu is the most significant factor behind their ecclesial and societal impact.


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