091 Effects of Saccharomyces cerevisiae Cncm l-1077 Supplementation on Feeding Behaviors and Growth Efficiency in Crossbred Beef Steers Fed a High-Grain Diet

Word, Alyssa B; Parsons, Ira L; Carstens, G. E.; Jenks, Monica Lynn; Cupples, A.; Sawyer, J. E.; Barling, Kerry S.; Chevaux, E.

doi:10.2527/ssasas2017.091

Cited by 2 publications

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“…Cumulative DMI did not differ ( P = 0.66) throughout the 77-d receiving and backgrounding experiment. This is similar to what others have observed in yearling beef steers when fed an active live yeast ( Kayser et al, 2016 ; Ovinge et al, 2018 ). Cumulative G:F did not differ during the 77-d receiving and backgrounding period ( P = 0.64) between treatment groups.…”

Section: Resultssupporting

confidence: 91%

“…Cumulative G:F did not differ during the 77-d receiving and backgrounding period ( P = 0.64) between treatment groups. Lack of responses to yeast supplementation on G:F responses is similar to what others have noted in yearling beef steers ( Kayser et al, 2016 ). Finck et al (2014) noted improvement in heifer DMI and health-related outcomes when fed live yeast and yeast cell wall alone or in combination compared to a nonsupplemented group during a 56-d receiving period.…”

Section: Resultssupporting

confidence: 87%

“…The current Veterinary Feed Directive and implementation of all-natural beef marketing channels have created the need for nonantimicrobial feed additives that have the potential to improve feed conversion efficiency, aid in ruminal fermentation, and improve animal health outcomes. Feeding enzymatically hydrolyzed yeast, yeast culture products, and active live yeast strains of Saccharomyces cerevisiae (SC) to cattle has produced inconsistent results in relation to gain, intake, gain efficiency, and efficiency of dietary net energy (NE) utilization ( Zinn et al, 1999 ; Finck et al, 2014 ; Salinas-Chavira et al, 2015 ; Kayser et al, 2016 ; Ovinge et al, 2018 ; Salinas-Chavira et al, 2018 ). The objective of this experiment was to evaluate the influence of an active live yeast product (Levucell SC, Advantage Titan, CNCM l-1077, Lallemand Animal Nutrition, Milwaukee, WI) on receiving and backgrounding period growth performance and efficiency of dietary NE utilization in low health risk beef steers.…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of an active live yeast (Levucell Saccharomyces cerevisiae, CNCM l-1077) on receiving and backgrounding period growth performance and efficiency of dietary net energy utilization in low health risk beef steers1

Smith

Karges²,

Aguilar³

2020

Translational Animal Science

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The objective of this experiment was to evaluate the influence of an active live yeast direct-fed microbial (DFM) product on receiving and backgrounding period growth performance and efficiency of dietary net energy (NE) utilization in low health risk beef steers. Maine-Anjou × Angus steers (n = 199; body weight [BW] = 252 ± 32.1 kg) were received from two sources at the Ruminant Nutrition Center in Brookings, SD, in November 2019 and used in a 77-d feedlot receiving and backgrounding experiment. Steers were provided access to long-stem hay and ad libitum water upon arrival. Steers were weighed, vaccinated for respiratory pathogens (source 2 only): infectious bovine rhinotracheitis, bovine viral diarrhea types 1 and 2, parainfluenza-3 virus, and bovine respiratory syncytial virus (Bovi-Shield Gold 5, Zoetis, Parsippany, NJ) vaccinated for clostridial species (Ultrabac 7/Somubac, Zoetis) and pour-on moxidectin (Cydectin, Bayer, Shawnee Mission, KS). Steers (n = 176 steers; initial unshrunk BW = 235 ± 27.6 kg) were allotted to pens (n = 20 pens; 10 pens per treatment; eight or nine steers per pen). Diets were based upon corn silage, dry-rolled corn, and dried distillers grains; dietary treatments were 1) no DFM (CON) and 2) DFM (Levucell SC, Advantage Titan, CNCM l-1077), fed at 10 g/steer/d providing 8 × 109 CFU of active live yeast to each steer daily (DFM). Initial BW was the average of day −1 and day 1 BW (n = 176 steers; initial BW = 253 ± 27.6 kg). On day 21, steers received a 200-mg progesterone and 20-mg estradiol benzoate implant. Data were analyzed from day 1 to 47 (receiving period), day 48 to 77, and from day 1 to 77 as a randomized complete block design; pen served as the experimental unit for all analyses. On day 47 of the experiment, DFM had greater BW (P = 0.01) by 0.9% and average daily gain (ADG; P = 0.01) by 4.2% and gain-to-feed ratio (G:F) tended (P = 0.13) to be 2.8% greater. Day 77 BW did not differ (P = 0.60), cumulative (days 1–77): ADG (P = 0.47), dry matter intake (P = 0.66), and G:F (P = 0.56) were similar. Yeast inclusion had no appreciable influence on performance-based dietary NE utilization or the ratio of observed/expected dietary NE (P ≥ 0.59). In low health risk steers, DFM improved performance during the feedlot receiving period. However, no improvements for DFM were detected for cumulative performance from day 1 to 77. The confirmation of yeast counts indicated the CFU to be above the expected level at the start of the trial but was found below expected level at the end of the trial. This may explain differences during the initial 47 d compared to cumulative growth performance results.

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Section: Resultssupporting

confidence: 91%

Section: Resultssupporting

confidence: 87%