Growth performance and safety of meat from cattle feedlot finished with salinomycin in the diet
DOI:
https://doi.org/10.5433/1679-0359.2016v37n6p4221Keywords:
Growth promotion additives, Feed conversion, Ionophores, Withdrawal period.Abstract
This study aimed to evaluate the performance, carcass characteristics, serum parameters, the residual depletion in the beef and the economic viability of termination steers with salinomycin in the diet. Were confined 32 animals fed with diet consisting of corn silage and concentrate (50:50) or not added salinomycin (120 mg animal d-1). The design was completely randomized with 8 repetions. The use of salinomycin improved weight gain (1.582 vs 1.304 kg) and feed conversion (6.16 vs 7.25 kg kg-1). There were no significant changes in feed intake (9.52 vs 9.25 kg animals d-1) in serum parameters, nor in the apparent digestibility of the diet. The 16-hour grace period before slaughter expressed salinomycin concentrations below 0.25 µg kg-1 in the organs and edible tissues below the values allowed by law. Animals finished with salinomycin showed better hot carcass weight (287.76 vs 275.81 kg) and better economic results, an increase of R$ 84.20 per animal in the profit margin. The use of salinomycin for feedlot steers promoted improvements in the production and economic performance without harming the health of animals and consumers, because they were not detected significant residues in edible tissues
Downloads
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2016 Semina: Ciências Agrárias
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Semina: Ciências Agrárias adopts the CC-BY-NC license for its publications, the copyright being held by the author, in cases of republication we recommend that authors indicate first publication in this journal.
This license allows you to copy and redistribute the material in any medium or format, remix, transform and develop the material, as long as it is not for commercial purposes. And due credit must be given to the creator.
The opinions expressed by the authors of the articles are their sole responsibility.
The magazine reserves the right to make normative, orthographic and grammatical changes to the originals in order to maintain the cultured standard of the language and the credibility of the vehicle. However, it will respect the writing style of the authors. Changes, corrections or suggestions of a conceptual nature will be sent to the authors when necessary.
