Short communication: Effect of the feed presentation form on the intake pattern, productive traits and rumen pH of beef cattle fed high concentrate diets

Antonio Gimeno, Alberto Dieste, Abdelmuhsen Al Alami, Antonio de Vega, Carlos Castrillo, Manuel Fondevila


Nutritional disorders like ruminal acidosis are common in Spanish beef production system, in which animals are fed diets with a high content in starch. This experiment studied the effect of feed presentation form (concentrate and straw offered separately, CD, or mixed in form of briquettes, BR) on the pattern of intake, growth and rumen pH of beef cattle fed high concentrate diets. The experiment was performed with 40 Holstein male calves, 32 of them for determining feed intake pattern and productive rates, and the remaining 8, which were previously provided with a ruminal cannula, to monitor rumen pH in two 21-day consecutive periods following a change-over design. Animals fed BR reduced feed intake rate during the first hour after feeding (18.6 vs. 24.0% of daily intake p<0.001), but this diet promoted a lower rumen pH at all sampling times compared with CD (daily average of 5.98 vs. 6.33; p<0.001) and tended to promote a lower total feed intake (7.08 vs. 9.77 kg DM/d; p<0.001) and daily weight gain (1.43 vs. 1.76 kg/d; p=0.056). Offering the concentrate and the straw mixed in form of briquettes is not useful to prevent ruminal acidosis and improve growth, probably due to both a reduced particle size of straw and avoided self-regulation of straw intake along the day.


feed processing; high-grain feeding; rate of intake

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AOAC, 2005. Official methods of analysis, 18th ed. (Horwitz W, Latimer GW, eds.), Association of Official Analytical Chemists, Gaithersburg, MA, USA.

Brown MS, Ponce CH, Pulikanti R, 2006. Adaptation of beef cattle to high-concentrate diets: performances and ruminal metabolism. J Anim Sci 84: E25-E33.

Cooper SDB, Kyriazakis I, Oldham JD, 1996. The effects of physical form of feed, carbohydrate source, and inclusion of sodium bicarbonate on the diet selections of sheep. J Anim Sci 74: 1240-1251.

Fox DG, Tedeschi LO, 2002. Application of physically effective fiber in diets for feedlot cattle. Proc Plains Nutr Conf, San Antonio, TX, USA. pp: 67-81.

González LA, Manteca X, Calsamiglia S, Schwartzkopf-Genswein KS, Ferret A, 2012. Ruminal acidosis in feedlot cattle: Interplay between feed ingredients, rumen function and feeding behavior (a review). Anim Feed Sci Technol 172: 66-79.

Krause KM, Oetzel GR, 2006. Understanding and preventing subacute ruminal acidosis in dairy herds: A review. Anim Feed Sci Technol 126: 215-236.

Mertens DR, 1997. Creating a system for meeting the fiber requirements of dairy cows. J Dairy Sci 80: 1463-1481.

Mertens DR, 2002a. Gravimetric determination of amylase-treated neutral detergent fiber in feeds with refluxing in beakers or crucibles: collaborative study. J AOAC Int 85: 1217-1240.

Mertens DR, 2002b. Measuring fiber and its effectiveness in ruminant diets. Proc Plains Nutr Conf, San Antonio, TX, USA. pp: 40-66.

Moya D, Mazzenga A, Holtshausen L, Cozzi G, Gonzalez L, Calsamiglia S, Gibb D, McAllister T, Beauchemin K, Schwartzkopf-Genswein K, 2011. Feeding behavior and ruminal acidosis in beef cattle offered a total mixed ration or dietary components separately. J Anim Sci 89: 520-530.

Nagaraja TG, Galyean ML, Cole NA, 1998. Nutrition and disease. Vet Clin North Am Food Anim Pract 14: 257-277.

Nagaraja TG, Titgemeyer EC, 2007. Ruminal acidosis in beef cattle: the current microbiological and nutritional outlook. J Dairy Sci 90: E17-38.

Owens FN, Secrist DS, Hill WJ, Gill DR, 1997. The effect of grain source and grain processing on performance of feedlot cattle: a review. J Anim Sci 75: 868-879.

Owens FN, Secrist DS, Hill WJ, Gill DR, 1998. Acidosis in cattle: a review. J Anim Sci 76: 275-286.

Robertson JB, Van Soest PJ, 1981. The detergent system of analysis and its application to human foods. In: The analysis of dietary fiber in foods (James WPT & Theander O, eds.), Marcel Dekker, NY, USA. pp: 123-158.

Schwartzkopf-Genswein KS, Bauchemin KA, McAllister TA, Gibb DJ, Streeter M, Kennedy AD, 2004. Effect of feed delivery fluctuations and feeding time on ruminal acidosis, growth performance, and feeding behaviour of feedlot cattle. J Anim Sci 82: 3357-3365.

Stock RA, Laudert SB, Stroup WW, Larson EM, Parrott JC, Britton RA, 1995. Effect of monensin and monensin and tylosin combination on feed-intake variation of feedlot steers. J Anim Sci 73: 39-44.

Ulyatt MJ, Dellow DW, John A, Reid CWS, Waghorn GC, 1986. Contribution of chewing during eating and rumination to the clearance of digesta to the ruminoreticulum. In: Control of digestion and metabolism in ruminants (Milligan LP, Grovum WL & Dawson A, eds.), Englewood Cliffs, Prentice Hall. pp: 498-515.

DOI: 10.5424/sjar/2014124-6439