Odor Control in Cattle Feed Yards
نویسندگان
چکیده
منابع مشابه
Dust Emissions from Cattle Feed Yards: A Source of Antibiotic Resistance?
The practice of using antibiotics in modern cattle-feeding operations has caused concerns about its potential contribution to the spread of antimicrobial resistance. In this issue of EHP, researchers examine the extent to which five commonly used antibiotics, together with antibiotic-resistance genes and ruminant-associated microbes, disperse from large-scale cattle feed yards via airborne part...
متن کاملAntibiotics, Bacteria, and Antibiotic Resistance Genes: Aerial Transport from Cattle Feed Yards via Particulate Matter
BACKGROUND Emergence and spread of antibiotic resistance has become a global health threat and is often linked with overuse and misuse of clinical and veterinary chemotherapeutic agents. Modern industrial-scale animal feeding operations rely extensively on veterinary pharmaceuticals, including antibiotics, to augment animal growth. Following excretion, antibiotics are transported through the en...
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Feed intake is determined by many interacting factors and prediction of feed intake is the “Achilles heel” of diet formulation. Many different diet characteristics interact with environment and physiological state of cows, making it difficult to predict feed intake accurately. However, understanding the factors controlling feeding allows us to manipulate diets to optimize feed intake. Eating is...
متن کاملCarrion odor and cattle grazing
Recently, it has been proposed on theoretical grounds that carrion odor from flowers may not only attract pollinators, but also repel mammalian herbivores. Two grazing experiments involving 16 to 26 cattle heads per year, one for eight years (1982-1989) and the other for seven (1994-2000), in a region with no large carnivores that could influence cattle behavior, show that cattle avoid areas wh...
متن کاملDefining Feed Efficiency in Beef Cattle
Most breeding programs have focused on improving economically relevant output traits such as growth, carcass quality and fertility to enhance the economic viability of beef production systems. Generally absent from current breeding programs in the U.S. are avenues for exploiting genetic variation in feed efficiency, even though reductions in feed inputs would substantially improve profitability...
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ژورنال
عنوان ژورنال: Journal of the Air Pollution Control Association
سال: 1964
ISSN: 0002-2470
DOI: 10.1080/00022470.1964.10468314