Effect of processed corn on performance, immune response and nutrients digestibility in Arian broiler chicken.

Articles in Press

Document Type : Research Paper

Authors

1 Department of Animal Science, Faculty of Agriculture, University of Zanjan, Zanjan, Iran

2 Department of Animal and Poultry Nutrition and Physiology, Animal Science Research Institute of Iran, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran.

3 Department of Animal and Poultry Nutrition and Physiology, Animal Science Research Institute of Iran, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran

Abstract

In this study, 750 Arian broiler chickens were used in a completely randomized design with five treatments, five replicates and 30 chicks per each replicate from 1 to 40 d of age. The experimental treatments contained 0%, 25%, 50%, 75% and 100% processed corn instead of unprocessed corn in the diet. The processed corn was prepared prior to this experiment through several processing steps including fermentation, cooking and infrared irradiation. All diets were formulated based on the recommendations of the Arian guideline and were nutritionally identical. The results showed that the use of processed corn throughout the rearing period (1 to 40 d of age) had no effect on growth performance, carcass characteristics, blood biochemical traits and antibody titers against sheep red blood cells and Newcastle disease virus. Nevertheless,observations at specific time points indicated that, increasing the level of processed corn at 35 days of age led to a linear and quadratic improvement in body weight and feed conversion ratio, while feed intake improved quadratically from 1 to 28 days of age. Additionally, a higher relative breast weight was observed in a linear and quadratic manner. leal digestibility of protein and energy, as well as antibody titer against influenza, increased linearly and quadratically with higher levels of processed corn in the diet (P<0.05). Overall, Processing corn positively affected growth at certain points, with 75% replacement showing better results than other levels.

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Iranian Journal of animal Science

Articles in Press, Accepted Manuscript
Available Online from 30 April 2025

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History

  • Receive Date: 02 December 2024
  • Revise Date: 26 April 2025
  • Accept Date: 28 April 2025

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