Results 41 to 50 of about 7,725 (185)

Investigating Effects of Tulathromycin Metaphylaxis on the Fecal Resistome and Microbiome of Commercial Feedlot Cattle Early in the Feeding Period

Frontiers in Microbiology, 2018
The objective was to examine effects of treating commercial beef feedlot cattle with therapeutic doses of tulathromycin, a macrolide antimicrobial drug, on changes in the fecal resistome and microbiome using shotgun metagenomic sequencing.
Enrique Doster, Enrique Doster, Pablo Rovira, Pablo Rovira, Noelle R. Noyes, Noelle R. Noyes, Brandy A. Burgess, Xiang Yang, Margaret D. Weinroth, Margaret D. Weinroth, Steven M. Lakin, Steven M. Lakin, Christopher J. Dean, Christopher J. Dean, Lyndsey Linke, Roberta Magnuson, Kenneth I. Jones, Christina Boucher, Jamie Ruiz, Keith E. Belk, Keith E. Belk, Paul S. Morley, Paul S. Morley, Paul S. Morley   +23 more
doaj   +1 more source

Developing a welfare assessment protocol for Australian lot-fed cattle

Frontiers in Animal Science, 2023
Lot feeding of cattle has gained momentum in recent years to improve efficiency in meeting market demands for high quality protein. Concurrently, societal concern for the welfare of animals raised in intensive farming systems has increased.
Emily Taylor, Emma Dunston-Clarke, Daniel Brookes, Ellen Jongman, Benjamin Linn, Anne Barnes, David Miller, Andrew Fisher, Andrew Fisher, Teresa Collins   +9 more
doaj   +1 more source

Spatial price competition and buyer power in the U.S. beef packing industry

American Journal of Agricultural Economics, EarlyView.
Abstract We develop a spatially‐explicit model of the U.S. beef packing industry to study key questions related to competition in an oligopsony setting. Cattle supplies are modeled at the county level, and packing plants' location, capacity, and ownership are taken as given. Packers procure negotiated cattle by competing in prices in each local (county)
GianCarlo Moschini, T. Jake Smith
wiley   +1 more source

Disease Occurrence in- and the Transferal of Zoonotic Agents by North American Feedlot Cattle

Foods, 2023
North America is a large producer of beef and contains approximately 12% of the world’s cattle inventory. Feedlots are an integral part of modern cattle production in North America, producing a high-quality, wholesome protein food for humans.
Osman Y. Koyun, Igori Balta, Nicolae Corcionivoschi, Todd R. Callaway   +3 more
doaj   +1 more source

Size‐based regulation and water quality: Evidence from the Iowa hog industry

American Journal of Agricultural Economics, EarlyView.
Abstract The growing prevalence of animal feeding operations (AFOs) in the United States raises concerns among the public and regulators about their impact on local environmental quality. By linking historical regulatory records of AFOs in Iowa to downstream surface water pollution monitors, this paper studies the effects of the 2003 Clean Water Act ...
Chen‐Ti Chen, Gabriel E. Lade, John M. Crespi, David A. Keiser   +3 more
wiley   +1 more source

Genetic Parameters for Novel Feedlot Profitability‐Related Traits in Nelore Cattle

Journal of Animal Breeding and Genetics, EarlyView.
ABSTRACT This study aimed to estimate (co)variance components and genetic parameters for accumulated profitability (AFP) and profit per kilogram of liveweight gain (PFT), and their relationships with weight at 450 days of age (W450), scrotal circumference at 365 days of age (SC365), age at first calving (AFC), probability of precocious calving at 30 ...
Letícia Pereira, Fernando Baldi, Guilherme Jordão Magalhães Rosa, José Bento Sterman Ferraz, Tiago Zanett Albertini, Minos Carvalho, Raysildo Barbosa Lobo, Eduardo da Costa Eifert, Elisa Peripolli, Cláudio Ulhôa Magnabosco   +9 more
wiley   +1 more source

Effectiveness of blower and HVLS fan in feedlot to performans of brahman, belmont red and charolais cattle

E3S Web of Conferences, 2018
The purpose of this study is to determine the impact of heat stress on Brahman Cross cattle performance which is maintained by feedlot with three treatments (non using fan, blower fan and HVLS fan) using split plot design, Giving the fan is treated as ...
Yasin David Isaac, Tafsin Ma’ruf, Ginting Simon P   +2 more
doaj   +1 more source

Genetic Parameters of Methane Emission, Feed Efficiency, Feeding Behaviour, and Growth Traits in Beef Cattle

Journal of Animal Breeding and Genetics, EarlyView.
ABSTRACT Climate change has intensified the need to reduce greenhouse gas emissions, particularly methane (CH4) from enteric fermentation. Genetic selection has emerged as a promising mitigation strategy; however, studies on Bos taurus indicus , especially Nellore cattle, remain limited.
J. A. Silva, J. P. S. Valente, L. F. M. Mota, G. R. D. Rodrigues, T. L. S. Soares, J. O. S. Marcatto, A. M. Pelaez, F. M. Monteiro, R. C. Canesin, L. G. Albuquerque, M. E. Z. Mercadante   +10 more
wiley   +1 more source

Contribution of Fat Adjustment to Residual Feed Intake Estimation in Beef Cattle

Journal of Animal Breeding and Genetics, EarlyView.
ABSTRACT Including fat thickness as a covariate in the regression model used to calculate residual feed intake (RFI) could help preserve carcass quality traits, such as marbling, flavour and juiciness, by accounting for variation in fat deposition.
Larissa Bordin Temp, Letícia Pereira, Marcos Jun‐Iti Yokoo, Cintia Righetti Marcondes, Roberto D. Sainz, Fernando Bussiman, Jorge Hidalgo, Daniela Lourenco, Fernando Baldi   +8 more
wiley   +1 more source

Use of probiotic lactobacilli as alternative to monensin in beef feedlot cattle

Academia Environmental Sciences and Sustainability
In an effort to substitute antibiotics in high-energy diets fed to feedlot cattle, probiotics have emerged as a viable alternative. In this study, increase of animals body weight (BW) and average daily gain (ADG) were used as indicators of ...
Flavia Ivana Mansilla, María Hortencia Miranda, Cecilia Aristimuño Ficoseco, Mariano Obregozo, Marcela D´Urso Villar, María Elena Fátima Nader-Macias, Graciela Margarita Vignolo   +6 more
doaj   +1 more source