Research Article| Volume 14, ISSUE 3, P173-177, September 1998

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Effect of Yeast Culture on Steer Performance, Apparent Diet Digestibility, and Carcass Measurements When Used in a Barley and Potato Finishing Diet1

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      Yeast culture has been used in corn and milo diets to improve animal performance and stabilize shifts in ruminal microbial populations due to diet changes. The purpose of this study was to determine the effects of yeast culture in a barley and potato processing residue diet on steer growth performance, apparent diet digestibility, carcass characteristics, ruminal VFA, and liver mineral concentrations. Seventy-two crossbred beef steers were assigned to one of two treatments in a completely randomized design. The control treatment received a finishing diet consisting of 84% (DM basis) barley and potato residue. The yeast culture treatment received the same diet plus 85 g of yeast culture per steer daily for the first 28 d, then 28 g per steer daily for the remaining 85 d. Total trial steer ADG (1.46 and 1.56 kg/d) and gain:feed (151.8 and 158.6 g:kg DM) control and yeast, respectively, were increased (P<0.01) by the addition of yeast culture to the diet. No differences (P>0.24) were noted for total DMI. Carcass characteristics also did not differ (P>0.38). Liver mineral concentrations were within normal ranges and were similar (P>0.14) for control and yeast culture treatments. Apparent DM, CP, ADF, NDF and GE diet digestibilities were similar (P>0.21) between treatments. No difference (P>0.86) was noted in total ruminal VFA concentration, however the acetate:propionate ratio decreased (P<0.05) for the yeast culture treatment due to increased propionate concentration in steers fed yeast culture. Feeding yeast culture in a barley and potato processing residue finishing diet improved ADG 6.9% and feed efficiency 4.5%.

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      Literature Cited

        • Adams D.C.
        • Galyean M.L.
        • Kiesling H.E.
        • Wallace J.D.
        • Finkner M.D.
        Influence of viable yeast culture, sodium bicarbonate and monensin on liquid dilution rate, rumen fermentation and feedlot performance of growing steers and digestibility in lambs.
        J. Anim. Sci. 1981; 53: 780
        • AOAC
        Official Methods of Analysis. 15th Ed. Association of Official Analytical Chemists, Washington, DC1990
        • Cole N.A.
        • Purdy C.W.
        • Hutcheson D.P.
        Influence of yeast culture on feeder calves and lambs.
        J. Anim. Sci. 1992; 70: 1682
        • Harris L.E.
        Basic methods for range nutrition.
        in: Nutrition Research Techniques for Domestic and Wild Animals. 1. Utah State University, Logan, UT1970: 5501
        • Harrison D.G.
        • Beever D.E.
        • Thompson D.J.
        • Osbourn D.F.
        Manipulation of rumen fermentation in sheep by increasing the rate of flow of water from the rumen.
        J. Agric. Sci. 1975; 85: 93
        • Harrison G.A.
        • Hemken R.W.
        • Dawson K.A.
        • Harmon R.J.
        • Barker K.B.
        Influence of addition of yeast culture supplement to diets of lactating cows on ruminal fermentation and microbial populations.
        J. Dairy Sci. 1988; 71: 2967
        • Malcolm K.J.
        • Kiesling H.E.
        Effects of whole cottonseed and live yeast culture on ruminal fermentation and fluid passage rate in steers.
        J. Anim. Sci. 1990; 68: 1965
        • Mir Z.
        • Mir P.S.
        Effect of the addition of live yeast (Saccharomyces cerevisiae) on growth and carcass quality of steers fed high-forage or high-grain diets and on feed digestibility and in situ degradability.
        J. Anim. Sci. 1994; 72: 537
        • NRC
        Nutrient Requirements of Beef Cattle. 6th Ed. National Academy Press, Washington, DC1984
        • Nicholson H.H.
        Comparison of yeast culture and brewers dried yeast on performance of beef cattle.
        in: Yeast Culture Beef Research Report 1977-1. Cedar Rapids, IA1977
        • Instrument Co Parr
        Parr Adiabatic Calorimeter Manual. No. 153. Parr Instrument Co, Moline, IL1975
        • Phillips W.A.
        • VonTungeln D.L.
        The effect of yeast culture on the poststress performance of feeder calves.
        Nutr. Rep. Int. 1985; 32: 287
        • Puls R.
        Mineral Level in Animal Health. 2nd Ed. Scherpa Int, Clearbrook, BC, Canada1994
        • SAS
        in: SAS Inst. Inc, Cary, NC1990
        • Van Keulen J.
        • Young B.A.
        Evaluation of acid-insoluble ash as a natural marker in ruminant digestibility studies.
        J. Anim. Sci. 1977; 44: 282
        • Van Soest P.J.
        • Robertson J.B.
        Systems of analysis of evaluating fibrous feeds.
        in: Pigden W.J. Balch C.C. Graham Michael Standardization of Analytical Methodology for Feeds. 1980: 49 (Int. Res. Dev. Ctr. Pub. No. 134e. Ottawa, ON, Canada)
        • Williams P.E.V.
        • Tait C.A.G.
        • Innes G.M.
        • Newbold C.J.
        Effects of the inclusion of yeast culture (Saccharomyces cerevisiae plus growth medium) in the diet of dairy cows on milk yield and forage degradation and fermentation patterns in the rumen of steers.
        J. Anim. Sci. 1991; 69: 3016