Effect of increasing monensin sodium levels in diets with virginiamycin on the finishing of Nellore cattle

Effect of increasing monensin sodium levels in diets with virginiamycin on the finishing of Nellore cattle

This study evaluated the effect of increasing levels of monensin sodium (MON) in diets with virginiamycin (VM) on the finishing of feedlot cattle. Two hundred and eighty intact male Nellore cattle (348 ± 32 kg body weight, 22 months) received one of the following five diets: control diet (without ad...

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Bibliographic Details
Published in:Animal science journal Vol. 88; no. 11; pp. 1709 - 1714
Main Authors: Benatti, João Marcos B., Alves Neto, João Alexandrino, Oliveira, Ivanna M., Resende, Flávio D., Siqueira, Gustavo R.
Format: Journal Article
Language:English
Published: Australia Blackwell Publishing Ltd 01-11-2017
Subjects:
acidosis
Additives
Animals
Body weight
Body Weight - drug effects
Bovidae
carcass
Cattle
Cattle - metabolism
Cattle - physiology
combination of additives
Diet
Diet - veterinary
Dose-Response Relationship, Drug
Dry matter
Eating - drug effects
Eating - physiology
Energy consumption
Energy intake
Energy Intake - drug effects
Energy Intake - physiology
Energy Metabolism - drug effects
Energy Metabolism - physiology
Energy utilization
Maintenance
Male
Monensin
Monensin - administration & dosage
Monensin - pharmacology
Sodium
Virginiamycin
Virginiamycin - administration & dosage
Virginiamycin - pharmacology
Weaning
Weight Gain - drug effects
Weight reduction
carcass
combination of additives
performance
acidosis
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Summary:This study evaluated the effect of increasing levels of monensin sodium (MON) in diets with virginiamycin (VM) on the finishing of feedlot cattle. Two hundred and eighty intact male Nellore cattle (348 ± 32 kg body weight, 22 months) received one of the following five diets: control diet (without additives); diet containing VM (25 mg per kg dry matter) combined with 0 (MON0), 10 (MON10), 20 (MON20) or 30 (MON30) mg MON per kg dry matter. During adaptation (28 days), the MON0 diet increased dietary net energy for maintenance and gain compared to the control diet (P = 0.04). The combination of additives linearly reduced dry matter intake, body weight and average daily gain (P < 0.01). Considering the total study period (110 days), there was a trend of greater net energy intake for maintenance (P = 0.09) and hot carcass weight (P = 0.06) for animals fed MON0 compared to the control diet. The combination of additives linearly reduced dry matter intake (P = 0.04) and linearly increased gain : feed and dietary net energy for maintenance and gain (P < 0.01). The combination of VM with MON at a dose of 30 mg/kg dry matter is recommended for Nellore feedlot cattle because it improves the efficiency of energy utilization.
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ISSN:1344-3941
1740-0929
DOI:10.1111/asj.12831