Combined use of ionophore and virginiamycin for finishing Nellore steers fed high concentrate diets

Nuñez, Amoracyr José Costa; Caetano, Mariana; Berndt, A.; Demarchi, João José Assumpção de Abreu; Leme, Paulo Roberto; Lanna, Dante Pazzanese Duarte

doi:10.1590/s0103-90162013000400002

Cited by 23 publications

(26 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…A higher roughage inclusion was necessary for the HMC. Greater dietary roughage level decreased DMI in another trial with Nellore steers fed diets with 9 and 27% of DM from corn silage (Nuñez et al, 2013). These authors observed that DMI, ME intake, and ADG all were lower for animals fed diets with 27% corn silage than for animals fed diets with 9% corn silage.…”

Section: Performance and Carcass Characteristicsmentioning

confidence: 90%

Effect of flint corn processing method and roughage level on finishing performance of Nellore-based cattle1

Caetano¹,

Goulart²,

Silva³

et al. 2015

Journal of Animal Science

View full text Add to dashboard Cite

This study was conducted to evaluate the effects of flint corn processing method (CPM) and level of NDF from roughage (rNDF) on performance, carcass characteristics, and starch utilization by finishing Nellore-based cattle fed high-concentrate, flint corn-based diets. In this study, 112 Nellore type bulls (initial BW 384.07 ± 29.53 kg and 24-36 mo of age) were individually fed using Calan gates or individual pens. The animals were used in a randomized complete block design in a 2 × 4 factorial arrangement with 2 CPM, high-moisture flint corn (HMC) or finely ground dry flint corn (FGC), with 1 of 4 levels of rNDF, 3, 8, 13, and 18% (DM basis), using sugarcane silage (SS) as roughage. Bulls were adapted to the finishing diet over a 21-d period and fed for a total of 81 d. Fecal starch (FS) concentration was determined on d 46 and 74 of the feeding period. There was a quadratic effect of rNDF on final BW (P < 0.01) and ADG (P = 0.01). Optimal concentrations of rNDF were estimated using the first derivative of second order polynomials, indicating that final BW and ADG were maximized with 13.3 and 13.0% rNDF, respectively. An interaction was observed between CPM and rNDF (P = 0.05) for DMI, with peak DMI occurring at 11.3 and 13.7% rNDF with FGC and HMC, respectively. Cattle fed HMC had 13.9% greater G:F (P < 0.01) compared with those fed FGC (0.172 vs. 0.151, respectively). There were quadratic effects of rNDF on HCW (P = 0.04) and ME intake (P < 0.01); heaviest carcass weights were estimated, in both cases, to be achieved with 12.8% rNDF. A quadratic effect of rNDF for renal, pelvic, and inguinal fat weight (P = 0.04) was observed, with a peak estimated to occur at 12.6% rNDF. An interaction between CPM and rNDF also was observed for FS (P < 0.05). Bulls fed FGC with 3% rNDF had greater FS content, and FS linearly decreased as concentration of rNDF increased. For bulls fed HMC, FS was 3.0% of DM and was unaffected by rNDF in the diet. Lower FS from bulls fed HMC suggests that availability of starch from flint corn was greater than that of FGC. For Nellore-based cattle fed a flint corn-based diet containing SS and 8% whole lint cottonseed, performance was optimized with 12.8% rNDF. In the absence of cottonseed addition to diets, optimal performance would be expected with about 14.5% rNDF.

show abstract

Section: Performance and Carcass Characteristicsmentioning

confidence: 90%

Effect of flint corn processing method and roughage level on finishing performance of Nellore-based cattle1

Caetano¹,

Goulart²,

Silva³

et al. 2015

Journal of Animal Science

View full text Add to dashboard Cite

show abstract

“…The responses to the administration of MON or VM alone have been widely studied and the results are consistent (Rogers et al 1995;Salinas-Chavira et al 2009, 2016Nuñez et al 2013). However, it is also necessary to understand the effects of the combination of these antimicrobial agents on performance.…”

Section: Introductionmentioning

confidence: 88%

“…Therefore, the effects of additives combination in the net energy intake have a positive impact on performance, possibly by changes in the pattern of ruminal fermentation (Nuñez et al 2013). Fonseca et al (2016) observed lower production of methane in animals that received a combination of VM and MON, which could be associated with increase in the levels of propionate and gluconeogenic precursors, improving the energetic status of this animals.…”

Section: Whole Study Period (0-110 Days)mentioning

confidence: 99%

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

Benatti

Neto

Oliveira

et al. 2017

Animal Science Journal

View full text Add to dashboard Cite

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.

show abstract

“…Os Ionóforos são frequentemente adicionados à dieta de confinamento para melhorar o metabolismo energético, sem danos à saúde dos animais. Entre os ionóforos, a monensina é o mais usado e melhor estudado (NUÑEZ et al, 2013).…”

Section: Introductionunclassified

Desempenho de cordeiros da raça Santa Inês alimentados com dieta acrescida de Monensina

França¹,

Oliveira²,

Ribeiro³

et al. 2019

Rev Agr Acad

View full text Add to dashboard Cite

________________________________________________________________________________ ResumoObjetivou-se avaliar o efeito do ionóforo monensina acrescido na dieta de cordeiros, criados em sistema de confinamento e abatidos aos 45 Kg, sobre o desempenho. Foram utilizados 12 cordeiros num delineamento inteiramente casualizado, sendo os animais distribuídos em dois tratamentos com seis repetições por tratamento. Sendo: 1) Dieta controle e 2) Dieta acrescida com monensina. Os dados foram analisados pelo procedimento GLM do programa Statistical Analysis System (SAS) e as médias comparadas pelo teste t. A utilização da monensina aumentou o ganho de peso diário, porém, não afetou o consumo. O uso da monensina na dieta de cordeiros confinados pode tornar-se favorável por poder diminuir o tempo de confinamento. Palavras-chaves: confinamento, consumo, ganho de peso, ionóforos, ovinos AbstractThe objective of this study was to evaluate the effect of the monensin increased in the diet of lambs, in feedlot and slaughtered at 45 kg on performance. Were used 12 lambs in a completely randomized design, with the animals distributed in two treatments with six replicates per treatment. Namely: 1) Control diet and 2) Diet increased with monensin. Data were analyzed by GLM procedure of Statistical Analysis System (SAS) and means compared by t test. The use of monensin increased daily weight gain, but didn't affect consumption. The use of monensin in the diet of confined lambs may be favorable because it can reduce the time of confinement.

show abstract

Combined use of ionophore and virginiamycin for finishing Nellore steers fed high concentrate diets

Cited by 23 publications

References 33 publications

Effect of flint corn processing method and roughage level on finishing performance of Nellore-based cattle1

Effect of flint corn processing method and roughage level on finishing performance of Nellore-based cattle1

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

Desempenho de cordeiros da raça Santa Inês alimentados com dieta acrescida de Monensina

Contact Info

Product

Resources

About