A finishing trial evaluated effects of feeding a direct-fed microbial product(Nova-Cell®) and a saponin feed additive (Ruma Just®) as a 2x2 factorial in steam-flaked corn-based diets containing 11% wet distillers grains (DM basis). No interaction was observed between Nova-Cell and Ruma Just (P \u3e 0.13). Feeding either Ruma Just or Nova-Cell had no impact (P = 0.20) on final BW, DMI, ADG, or F:G. Neither Nova-Cell or Ruma Just affected (P = 0.10) HCW, 12th rib fat, or LM Area. Marbling appeared to be improved (P = 0.03) when Ruma Just was added to the finishing diet

Erickson, Galen

Furman, Stephanie A

Goodall, Richard S.

Jenkins, Karla H.

Klopfenstein, Terry

Nichols, Cody A.

Vasconcelos, Judson, Vasconcelos

English

DigitalCommons@University of Nebraska

University of Nebraska - Lincoln DigitalCommons@University of Nebraska - Lincoln Nebraska Beef Cattle Reports Animal Science Department 2011 Effects of Lactobacillus Acidophilus and Yucca Schidigera on Finishing Performance and Carcass Traits of Feedlot Cattle Cody A. Nichols University of Nebraska-Lincoln Karla H. Jenkins University of Nebraska-Lincoln, kjenkins2@unl.edu Judson Vasconcelos Vasconcelos University of Nebraska-Lincoln, jvasconcelos2@unl.edu Galen Erickson University of Nebraska-Lincoln, gerickson4@unl.edu Stephanie A. Furman University of Nebraska-Lincoln, sfurman2@unl.edu See next page for additional authors Follow this and additional works at: https://digitalcommons.unl.edu/animalscinbcr  Part of the Animal Sciences Commons Nichols, Cody A.; Jenkins, Karla H.; Vasconcelos, Judson Vasconcelos; Erickson, Galen; Furman, Stephanie A.; Goodall, Richard S.; and Klopfenstein, Terry, "Effects of Lactobacillus Acidophilus and Yucca Schidigera on Finishing Performance and Carcass Traits of Feedlot Cattle" (2011). Nebraska Beef Cattle Reports. 617. https://digitalcommons.unl.edu/animalscinbcr/617 This Article is brought to you for free and open access by the Animal Science Department at DigitalCommons@University of Nebraska - Lincoln. It has been accepted for inclusion in Nebraska Beef Cattle Reports by an authorized administrator of DigitalCommons@University of Nebraska - Lincoln. Authors Cody A. Nichols, Karla H. Jenkins, Judson Vasconcelos Vasconcelos, Galen Erickson, Stephanie A. Furman, Richard S. Goodall, and Terry Klopfenstein This article is available at DigitalCommons@University of Nebraska - Lincoln: https://digitalcommons.unl.edu/animalscinbcr/617 Page 72 — 2011 Nebraska Beef Cattle Report  © The Board of Regents of the University of Nebraska.  All rights reserved.Effects of Lactobacillus Acidophilus and Yucca Schidigera on Finishing Performance and Carcass Traits of Feedlot CattleCody A. NicholsKarla H. JenkinsJudson T. VasconcelosGalen E. EricksonStephanie A. FurmanRichard S. GoodallTerry J. Klopfenstein1SummaryA finishing trial evaluated ef-fects of feeding a direct-fed microbial product(Nova-Cell®) and a saponin feed additive (Ruma Just®) as a 2x2 factorial in steam-flaked corn-based diets con-taining 11% wet distillers grains (DM basis). No interaction was observed between Nova-Cell and Ruma Just (P > 0.13). Feeding either Ruma Just or Nova-Cell had no impact (P = 0.20) on final BW, DMI, ADG, or F:G. Neither Nova-Cell or Ruma Just affected (P = 0.10) HCW, 12th rib fat, or LM Area. Marbling appeared to be improved (P = 0.03) when Ruma Just was added to the finishing diet. IntroductionFeeding trials evaluating efficacy of direct-fed microbials (DFM) have indicated increases in ADG and decreases in F:G in feedlot cattle, enhanced milk production in dairy cows, and improved health and per-formance of young calves (2003, Jour-nal of Animal Science, 81:E120-E132). In the production of DFM, species of bacteria identified as beneficial to the host animal are extracted from mixed cultures of bacteria. Single cultures like Lactobacillus potentially prevent ruminal acidosis in dairy cows (2002 Journal of Dairy Science, 85:429-433), and reduce fecal shedding of Es-cherichia coli 0157:H7 (2003 Journal of Animal Science, 81:E120-E132). Yucca saponins increased ADG in feedlot cattle fed high-grain diets (1982, Western Section, American Society of Animal Science, 33:45-46). These steroidal saponins come from Yucca Schidigera. Other research has indicated saponins may increase pro-pionate concentration (1994 Journal of Animal Science, 36:698-709). The purpose of the current study was to evaluate the effects of Nova-Cell (DFM, Nova Microbial Technologies, Omaha, Neb.) and Ruma-Just (Yucca Schidigera, Nova Microbial Tech-nologies) alone or in combination on finishing performance and carcass characteristics.ProcedureYearling British x Continental steers (n = 384; initial BW=721±51 lb) were used in an experiment con-ducted at the Panhandle Research Feedlot (University of Nebraska–Lincoln Panhandle Research and Extension Center). Prior to the start of the experiment, cattle were given Bovi-Shield Gold (Pfizer Animal Health, New York, N.Y.), Vision 7 (Intervet/Shering-Plough, Millsboro, Del), Ivomec (Merial, Duluth, Ga.), Component TE-IS (Elanco Animal Health; Greenfield, Ind.), electronic and visual ID along with a UNL hot brand. Steers were reimplanted on day 55 with Component TE-S. Cattle were limit fed (2% of BW) a 50% for-age diet for a total of five days before the initiation of the trial in an effort to reduce variation in gut fill at time of weighing. Steers were individu-ally weighed two consecutive days (day 0 and day 1) after the limit feed-ing period to obtain an initial BW. Cattle were stratified by BW within respective weight block (8 blocks) and assigned randomly to 32 pens (12 steers/pen). Treatments (n = 4; 8 replications) were assigned randomly to pens within weight blocks. Treat-ments were arranged as a 2x2 factorial and consisted of 1) Control (no feed additives); 2) Ruma Just (Yucca Schi-digera); 3) Nova-Cell (Lactobacillus Acidophilus NCFM); and Ruma Just and Nova-Cell.A 21-day grain adaptation pe-riod was used, in which incremental percentages of steam-flaked corn re-placed alfalfa hay to allow cattle to be-come acclimated to the final finishing diet. The final diet consisted of 71.9% steam-flaked corn, 7.3% corn silage, 3.7% alfalfa hay, 11% wet distillers grains plus solubles, and 6% liquid supplement (DM basis). The liquid supplement was formulated to provide 30 g/ton Rumensin (Elanco Animla Health; Greenfield, Ind.) and 8.8 g/ton Tylan (Elanco Animal Health). Diets containing the DFM product were formulated to provide 500 mil-lion CFU/steer daily of Nova-Cell and diets containing Yucca Schidigera were formulated to provide 1.0 g/steer daily of Ruma Just. Nova-Cell was stored at 32oF and was applied to the ration by use of a micro ingredient machine. Ruma Just was also added to the diets during mixing by a micro ingredient machine separate from the machine that applied the DFM product. After feeding diets containing Nova-Cell or Ruma Just, the feed truck was loaded with a diet that was to be fed to cattle not involved in the current study. This was done in an effort to eliminate the risk of cross contamination of either Nova-Cell or Ruma Just in diets that were not designated to contain either feed additive.Feed bunks were visually evalu-ated each morning and were managed to allow for trace amounts of feed to remain in each bunk before feed © The Board of Regents of the University of Nebraska.  All rights reserved. 2011 Nebraska Beef Cattle Report  — Page 73 on a live basis which included final BW, ADG, or F:G (P > 0.05). Finish-ing performance data analyzed on a carcass-adjusted basis indicated no differences in final BW, ADG, or F:G (P > 0.05). The main effect of Nova-Cell did not impact (P = 0.20) finish-ing performance characteristics (final BW, ADG, DMI, and F:G). The same finishing performance data calculated on a live basis also indicated no effect (P = 0.52) of Nova-Cell on finishing performance. The addition of Nova-Cell to the finishing diets did not impact (P = 0.86) HCW, marbling, or fat depth (Table 2). However there was a tendency for cattle fed Nova-Cell to have slightly larger LM Area (P = 0.10). Neither Ruma Just nor Nova-Cell impacted calculated YG  (P = 0.20). Cattle fed diets containing Ruma Just tended to have greater dress-ing percentages (P = 0.06). Feeding Ruma Just had no impact (P = 0.21) on HCW, fat depth, or LM area; however, marbling was increased (P = 0.03; 617) for steers in the Ruma Just treatment group. The difference detected in mar-bling due to the supplementation of Ruma Just did not translate to differ-ences in quality grade data. Cattle fed diets containing Ruma Just tended  (P = 0.09) to grade better than cattle that did not receive Ruma Just; how-ever, no significant differences were detected. The main effect of Nova-Cell also did not impact quality grade  (P = 0.98).Data from the current study indi-cate that Ruma Just and Nova-Cell did not significantly impact finishing performance. However, the addi-tion of Ruma Just to finishing diets appeared to increase marbling. 1Cody A. Nichols, graduate student; Galen E. Erickson, professor; Terry J. Klopfenstein, professor, University of Nebraska–Lincoln Department of Animal Science; Karla H. Jenkins, assistant professor; Stephanie A. Furman, research manager, Panhandle Research and Extension Center, Scottsbluff, Neb.; Judson T. Vasconcelos, former UNL assistant professor; Richard S. Goodall, Nova Microbial Technologies.Table 1. Finishing performance of steers fed diets containing Nova-Cell and Ruma Just either alone or in combination. Control Ruma  Nova- Ruma Just &  Ruma Just Nova-Cell Inter  Just Cell Nova-Cell SEM P-value P-value P-valuePens 8 8 8 8Steers 96 96 96 96 Carcass-adjusted performance3Initial BW, lb 721 721 722 721 2.03 0.96 0.82 0.52Final BW, lb 1357 1370 1366 1368 13.1 0.34 0.87 0.52DMI, lb/day 23.4 23.6 23.7 23.7 0.30 0.93 0.20 0.88ADG, lb/day 3.62 3.69 3.67 3.68 0.07 0.27 0.96 0.60F:G 6.58 6.49 6.57 6.54  0.244 0.304 0.714Live performance1,2Final BW, lb 1356 1361 1364 1361 13.1 0.97 0.52 0.50ADG, lb/day 3.61 3.64 3.66 3.64 0.07 0.94 0.57 0.61F:G 6.59 6.57 6.61 6.63  0.924 0.754 0.4741All BW are shrunk 4% except initial BW.2Live performance calculated from live BW on a pen basis collected prior to study initiation and on day of slaughter.3Carcass adjusted performance calculated using 63% dressing percentage for all four treatments.4P-value calculated form G:F.Table 2. Carcass characteristics of steers fed diets containing Nova-Cell and Ruma Just either alone or in combination. Control Ruma  Nova- Ruma Just &  Ruma Just Nova-Cell Inter  Just Cell Nova-Cell SEM P-value P-value P-valueCarcass characteristics Hot carcass weight, lb 855 863 861 862 8.23 0.32 0.86 0.51Marbling1 605 617 609 620 10.2 0.03 0.92 0.45Fat depth, in 0.58 0.58 0.58 0.57 0.01 0.78 0.89 0.13LM Area in2 12.6 12.6 12.8 12.7 0.19 0.21 0.10 1.00Calculated YG2 3.55 3.61 3.55 3.56 0.08 0.20 0.27 0.39Dressing % 63.1 63.4 63.1 63.5 0.32 0.06 0.44 0.961500 = Small0, 600 = modest0, etc.2Calculated as 2.50 + (2.5*fat depth, in) - (0.32*LM Area, in2) + (0.2*2.5 KPH) + (0.0038*HCW, lb)delivery . Cattle were individually weighed at the end of the trial. This BW (shrunk by 4%) was used to calculate live performance. Carcass adjusted performance was calculated using carcass weights adjusted to a common dressing percentage of 63%. Blocks 1-4 were on feed for 162 days while blocks 5-8 were on feed for 189 days.Cattle were slaughtered at a com-mercial abbatoir (Cargill Meat Solu-tions, Fort Morgan, Colo.) on two different dates. Carcass data were col-lected by trained professionals from Diamond T Livestock Services (Yuma, Colo.). Hot carcass weight and liver score data were collected on the day of slaughter. Carcass 12th rib fat, prelim-inary yield grade, percentage of KPH, marbling score, LM area, and USDA quality grades were recorded follow-ing a 48-hour carcass chill. Animal performance and carcass data were analyzed using the mixed procedure of SAS (SAS Inst. Inc., Cary, N.C.) as a randomized complete block design with pen as the experimental unit. The Proc Glimmix procedure of SAS was used for determining the quality grade distribution. ResultsNo significant interactions between Nova-Cell and Ruma Just were de-tected for the finishing performance and carcass characteristic data. There were no differences in DMI due to the main effect of Ruma Just (Table 1). Ruma Just also had no impact on finishing performance calculated 

Effects of Lactobacillus Acidophilus and Yucca Schidigera on Finishing Performance and Carcass Traits of Feedlot Cattle

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Effects of Lactobacillus Acidophilus and Yucca Schidigera on Finishing Performance and Carcass Traits of Feedlot Cattle

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