The Effect of Replacing Barley Grain with Powerfeed® in Finishing Diets on the Performance, Serum Sodium and Potassium Concentration, and the Urine pH of Chall Lambs

Document Type : Research Articles


1 Department of Animal Science, College of Abouraihan, University of Tehran, Tehran, Iran

2 Department of Animal Health and Nutrition, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran


Thirty six male Chall lambs (four-month old and 26  ±1.5 kg body weight) were randomly assigned into four treatments (nine lambs per treatment) to study the effect of Powerfeed® (a commercial mixture made from wheat processing by-product and wheat bran) on weight gain, feed intake, feed conversion ratio, serum sodium and potassium concentration and urine pH. Lambs in control group were fed with a total mixed ration based of alfalfa and barley grain. Barley grain was replaced with Powerfeed® (PF) at levels of 4, 8 and 12 in treatments 2, 3 and 4, respectively. The experiment lasted for 105 days comprising 15 days of adaptation period and 90 days finishing period. No significant differences were observed in weight gain, feed intake, feed conversion ratio, serum sodium and potassium concentration and urine pH of lambs in control group when compared to other treatments. In conclusion, Powerfeed® can be used as partial replacement of barley grain in total mixed rations of finishing lambs.


Abii J.U., Iji P.A., Umunna N.N. and Dim N.I. (1993). The replacement value of wheat bran for cotton seed cake and maize in diets for sheep. Bulletin. Anim. Health. Prod. Africa. 41, 65-69.
AOAC. (1990). Official Methods of Analysis. Vol. I. 15th Ed. Association of Official Analytical Chemists, Arlington, VA.
Arosemena E.J., Peters D. and Fadel G.J. (1995). Extent of variability in nutrient composition within selected by-product feedstuffs. Anim. Feed Sci. Technol. 54, 103-120.
Brown M.S., Hallford D.M., Galyean M.L., Krehbiel C.R. and Duff G. (1999). Effect of ruminal glucose infusion on dry matter intake, urinary nitrogen composition, and serum metabolite and hormone profiles in ewes. J. Anim. Sci. 77, 3068-3076.
Devlin T.J. and Roberts W.K. (1963). Dietary maintenance requirement of sodium for whether lambs. J. Anim. Sci. 22, 648-653.
Dhakad A., Garg A.K., Singh P. and Agrawal D.K. (2002). Effect of replacement of maize grain with wheat bran on the performance of growing lambs. Small Rumin. Res. 43, 227-234.
Meyer J.H. and Weir H.C. (1954). The tolerance of sheep to high intakes of sodium chloride. J. Anim. Sci. 13, 443-449.
Moseley G. and Jones D.I.H. (1974). The effect of sodium chloride supplementation of a sodium adequate hay on digestion, production and mineral nutrition in sheep. J. Agric. Sci. Camb. 83, 37-42.
NRC. (1985). National Research Council, Nutrient Requirements of Sheep. The 6th Revised Ed. Natl. Acad. Sci., Washington, DC.
Pirzadeh Naeiny A., Khadem A.A., Rezaeian M. and Afzalzadeh A. (2010a). Starch processing wastage as a feed for Holstein bulls. Proc. British Soci. Anim. Sci. 373.
SAS Institute. (2001). SAS®/STAT Software, Release 8.2 SAS Institute, Inc., Cary, NC.
Scott D., Loveridge N., Abudamir H., Buchan W. and Milne J. (1993). Effects of acute acid loading on parathyroid hormone secretion and on urinary calcium and cAMP excretion in the growing lambs. Exper. Physiol. 78, 57-163.
Singh P., Garg A.K., Malik R. and Agrawal D.K. (1999). Effect of replacing barley grain with wheat bran on intake and utilization of nutrients in adult sheep. Small Rumin. Res. 31, 215-219.
Tabeidian S.A. and Sadeghi G.H. (2009). Effect of replacing barley with rice bran in finishing diet on productive performance and carcass characteristics of Afshari lambs. Trop. Anim. Health. Prod. 41, 791-796.
Van-Soest P.J., Robertson J.B. and Lewis B.A. (1991). Methods of dietary fiber, neutral detergent fiber and non-starch polysaccharide measurements in relation to animal nutrition. J. Dairy Sci. 74, 3583-3597.
Vinodh Kumar O.R., Swarnkar C.P., Shinde A.K. and Singh D. (2010). Clinical, mineral and haemato biochemical studies of urolithiasis in weaner lambs. Afric. J. Agric. Res. 5, 2045-2050.