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Effects of the addition of roller mill ground corn to pelleted feed during a fifty-six-day production period on growth performance and processing yields of broiler chickens¹

W. A. Dozier, III^*,2,3, K. Behnke, P. Twining and S. L. Branton^*

^* USDA, Agriculture Research Service, Poultry Research Unit, PO Box 5367, Mississippi State, MS 39762-5367; Department of Grain Science and Industry, Kansas State University, Manhattan 66506; and Paul Twining Associates Inc., Princess Anne, MD 21853

² Corresponding author: bill.dozier{at}auburn.edu

Poor pelleting production rates can raise the milling cost and increase the frequency of feed outages for broiler integrated operations. The number of broilers marketed to heavy BW has been increasing, and meeting feed delivery schedules can be problematic with "big bird" complexes. Adding rolled corn post pellet is a management strategy to increase feed production rate while concurrently decreasing energy use of the grinding and pelleting processes. This study evaluated the addition of screened rolled corn to pelleted feed on live performance and meat yield of broiler chickens during a 56-d grow-out. Four dietary treatments were provided: A) a control, no added corn post pellet from 18 to 56 d of age; B) addition of 25% of the formulated corn post pellet from 18 to 56 d of age; C) addition of 10, 20, and 30% of the formulated corn post pellet from 18 to 35, 36 to 46, and 47 to 56 d of age, respectively; and D) addition of 20, 30, and 40% of the formulated corn post pellet from 18 to 35, 36 to 46, and 47 to 56 d of age, respectively. Final BW, cumulative feed conversion, 38-d BW uniformity, and 57-d breast meat weight and yield were similar among the dietary treatments. These results indicate screened rolled corn can be added post pellet without adversely affecting broiler performance and meat yield.

Key Words: broiler • corn • feed manufacturing • grinding • particle size

¹ Mention of trade names or commercial products in this publication is solely for the purpose of providing specific information and does not imply recommendation or endorsement by the USDA or Kansas State University.

³ Current address: Department of Poultry Science, Auburn University, 201 Poultry Science Building, 260 Lem Morrison Drive, Auburn, AL 36849-5416.