Effect of monensin sodium associative to virginiamycin and/or essential oils on the performance of feedlot finished steers

Heker, Julio Cezar; Neumann, Mikael; Ueno, Robson Kyoshi; Falbo, Margarete Kimie; Galbeiro, Sandra; Souza, André Martins de; Santos, Leslei Caroline; Askel, Eloize Jaqueline

doi:10.5433/1679-0359.2018v39n1p261

Cited by 8 publications

(3 citation statements)

References 10 publications

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“…The same result was reported by Rogers et al (1995), where there was an increase in animal performance without affecting the dry matter intake. Heker et al (2018), when evaluating the DMI of steers confined and supplemented with MO alone or MO combined with VM, also did not obtain any difference between treatments. Squizatti (2019) evaluated 5 cannulated cattle, adapted for 14 days and supplemented with MO alone (30 mg kg -1 ) or MO + VM (30 mg kg -1 + 25 mg kg -1 ) and found no differences in DMI corroborating the present experiment.…”

Section: Resultsmentioning

confidence: 73%

“…The ADG found by the same author showed no synergy between the additives, remaining at 1.240 kg day -1 . Heker et al (2018) examined the performance of confined steers receiving MO combined with VM and/or essential oils and found that the ADG for treatment with MO was 1,329 kg day -1 versus 1,559 kg day -1 in the combination of MO and VM, these data are in line with data of the present experiment with 1,636 kg day -1 versus 1,799 kg day -1 of the average of the treatments receiving different doses of MO and VM, that is, the combination of these provided greater daily gain regardless of the dosage provided.…”

Section: Resultsmentioning

confidence: 99%

“…As for the rumination behavior and time, an experiment carried out by Sitta (2011) showed no difference with the inclusion of MO and/or MO combined with VM. According to Heker et al (2018), these results can be explained by the same physical characteristic of the feed, being different only the supplementation offered to the animals. Pereira et al (2015) evaluated the diet with inclusion of MO in different dosages, and also observed no difference in the number of trips to the feeder, with an average value of 15.53 times day -1 .…”

Section: Experimental Dietmentioning

confidence: 98%

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Associative effect of monensin sodium to virginiamycin on the performance of beef steers in the initial feedlot phase

Neumann

Pontarolo

Cristo

et al. 2020

Semina: Ciênc. Agrár.

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The objective was to evaluate the associative effect of monensin sodium to virginiamycin on the performance, dry matter intake, apparent digestibility and ingestive behavior of steers in the initial feedlot phase. The experiment lasted for 30 days, divided into two experimental periods. Thirty-six Angus Nellore steers, non-castrated, with a mean age of 10 months and an average weight of 300 kg, were divided into 18 pens. Animals were assigned to three treatments with six replications each, with the inclusion of the following additives: T1-monensin sodium, dose of 200 mg day-1; T2-monensin sodium, dose of 125 mg day-1 + virginiamycin, dose of 125 mg day-1; and T3-monensin sodium, dose of 200 mg day-1 + virginiamycin, dose of 125 mg day-1. All experimental procedures were previously submitted to the UNICENTRO Committee for Ethics in Animal Experimentation (CEUA), and were approved for execution (Official Letter 021/2019). The combination of monensin sodium with virginiamycin at a dose of 200 mg + 125 mg animal day-1 showed greater (P < 0.05) average daily weight gain (1.919 kg day-1) and better feed conversion (4.27 kg DM kg of weight gain-1) compared to diets with monensin alone (200 mg animal day-1) or monensin combined with virginiamycin (125 mg + 125 mg animal day-1), even with no significant (P> 0.05) difference in DM intake, with a mean value of 7.88 kg animal day-1. Regardless of the isolated or combined supplementation of the additives, no significant differences were detected in the analysis of the feeder and feces scores, ingestive behavior, and rectal temperature or infrared thermography during the evaluation period. The combination of monensin sodium with virginiamycin at 200 mg + 125 mg animal day-1 proved to be efficient in the initial feedlot period, determined by the greater weight gain and better feed conversion observed in this study.

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Section: Resultsmentioning

confidence: 73%

Section: Resultsmentioning

confidence: 99%