Performance and Carcass Characteristics of Broiler Chickens Fed Dietary Levels of Maize Milling Residue as Replacement for Millet Offal

Yusuf S.Z.; K. M. Bello; A. I. Muhammad; Usman. Y.

Yusuf S.Z. epartment of Animal Science and Range Management, School of Agriculture and Agricultural Technology, Modibbo Adama University of Technology, Yola, Nigeria
K. M. Bello Department of Animal Production, School of Agriculture and Agricultural Technology, Abubakar Tafawa University, Bauchi, Bauchi State, Nigeria
A. I. Muhammad Department of Animal Science, Faculty of Agriculture Federal University Dutse Jigawa State, Nigeria
Usman. Y. Department of Agric Education, Sir Kashim Collage of Education Maiduguri, Borno State, Nigeria

Keywords: Broiler Chickens, Millet offal, Maize milling residue, Performance, Carcass Characteristics

Abstract

The experiments was conducted to evaluate the performance of broiler finisher chickens fed different levels of maize milling residue (MMR) as replacement for millet offal (MO) at graded levels of 0, 25, 50, 75 and 100%. Two hundred broiler chicks were randomly assigned to five dietary treatments in a completely randomized design with forty birds per treatment (i.e. ten per replicates). Feed and water were offered ad-libitum. The feeding trial lasted for four weeks. The results of daily feed intake (DFI) were similar across the dietary treatment. The DFI ranges from 148.51 and 155.35g in treatment 1(0% MMR) and 5 (100% MMR) respectively. No significant dietary effects were observed in terms of daily weight gain (DWG) across the treatment groups. Similarly no significant dietary effects were observed among the treatments in terms of feed conversion ratio (FCR). However, FCR was numerically better in diet 5 (100% MMR). The live weight (2877.50 to 3332.50g), bled weight (2730.00 to 3137.50g), plucked weight (25.90.00 to 3002.50g), dressed weight (1955.00 to 2337.50g) and dressing percentage (67.94 to 71.83%) were also not affected by the dietary levels of maize milling residue as replacement for millet offal. Prime cuts expressed as percentages of live weight which includes breast (19.03 to 22.10%), drum stick (9.35 to 10.31%), thighs (11.64 to 12.02), back (7.75 to 9.47%) thorax (4.70 to 5,32%), head (1.82 to 2.25%) and legs (3.31 to 4.24%) did not differ significantly (P> 0.05) across the dietary treatments. Similarly all organs measured were not influenced by the dietary levels of maize milling residue as replacement for millet offal. Based on the results obtained, MMR can completely (100%) replace millet offal (MO) as dietary fibre source for feeding broiler finishers with no negative effect on performance and carcass parameters.

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