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Diet Dilution by Omitting Added Fat with Broilers for Further Processing

Poultry Science Department and Alabama Agricultural Experiment Station, Auburn University, AL 36849-5416; Phone: (334) 844-2617; FAX: (334) 844-2641

Correspondence: E. T. Moran, Jr.

Omission of added fat from all feed throughout 50 days of production was examined with broiler males used for further processing. Corn-soybean meal feeds that satisfied NRC (1994) nutrient recommendations for CP and ME were compared to those resulting when fat in the corresponding feeds had been omitted, and ME:CP ratios were similar.

Omission of fat reduced live gain through the first 39 days, but because of subsequent weight gain compensation, birds on the reduced-fat-diet had approximately the same weight as control birds at 50 days. Carcass yield and cone-deboned breast meats from both treatments were similar. Drumstick evaluation from the entire population indicated that dietary dilation significantly relieved tibial dyschondroplasia. Omitting added fat appears to be an effective means of limiting early growth and minimizing leg problems without adversely affecting further-processing yields.

Key Words: Carcass yield • cone deboning • dietary fat • nutrient dilution