Research Article
Volume 7 Issue 4 - 2022
Performance Effects from Supplementation of a Probiotic and Monensin in Feedlot Cattle
Grijalva PC, Vander Poel M, Hubbell AN and Duarte Diaz*
School of Animal and Comparative Biomedical Sciences, University of Arizona, Tucson, Arizona, USA
*Corresponding Author: Duarte Diaz, School of Animal and Comparative Biomedical Sciences, University of Arizona, Tucson, Arizona, USA.
Received: February 24, 2022; Published: March 25, 2022




Abstract

Thirty-two Hereford x Simmental steers (250.0 ± 15 kg Initial BW) were assigned to four dietary treatments in a completely randomized design (4 steers/pen, 2 pens/treatment) in order to evaluate the effects of supplementing Monensin (MON; Rumensin; Elanco Animal Health, Greenfield, IN) in comparison and in combination (CMB) with a proprietary Probiotic blend (PRO; MultSacch®, Biomart Nutrição Animal Imp. and Exp. Ltda.) on the growth performance, feed efficiency, and on cost of gain. Individual feed intake was monitored using a GrowSafe System (GrowSafe Systems Ltd. Calgary, AB, Canada) and weights were recorded weekly for a 90d growth data period. Supplementation with PRO and CMB both increased Gain:Feed (G:F) by 6% with respect to control (CON) steers (P = 0.01). No treatment effects were detected in initial body weight (IBW), final body weight (FBW), or average daily gain (ADG) (P > 0.05). DMI was lowest in CMB steers (P = 0.04), and this same group had the lowest cost of gain (P < 0.001). Present findings indicate that when compared with MON, under these experimental conditions PRO seems to be just as effective in stabilizing intraruminal milieu and increasing ruminal fiber utilization when steers are fed rapidly fermentable carbohydrate grain-based diets, thus improving feed efficiency without the need of MON supplementation. However, combined use of PRO and MON results in the lowest cost of gain (P = 0.03). Further experimentation is required to ascertain the effect substituting MON with different mixtures of Probiotics will have long term on cattle growth performance and profitability.

Keywords: Yeast; Probiotics; Monensin; Feedlot Cattle

References

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Citation: Duarte Diaz., et al. “Performance Effects from Supplementation of a Probiotic and Monensin in Feedlot Cattle”. EC Veterinary Science 7.4 (2022): 01-05.

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