The proportion of fine particles in pelleted diets does not affect performance of slow-growing broiler chicks


  • Fabiana Ramos-Santos Federal Institute of Goiás
  • Deibity Alves-Cordeiro Federal University of Goiás
  • Hyalo Batista-Santos Federal Institute of Goiás
  • Nayanne Rodrigues-Oliveira Federal Institute of Goiás
  • Maura-Regina Sousa-Silva Federal Institute of Goiás
  • Cibele Silva-Minafra Federal Institute of Goiás
  • Júlia-Marixara Sousa-Silva Federal University of Goiás



alternative production, broiler chickens, digestibility, digestive development, feed fines, Isa Label, pelleted feed, performance, pellet quality, poultry, serum biochemistry


Background: The slow-growing chicken strains have particular nutritional and digestive needs, so they may digest pelleted feeds differently compared to commercial strains. Objective: To evaluate performance, digestibility, serum biochemical profile, digestive morphometry, carcass and cut yields of slow-growing broiler chickens fed pelleted feed with different concentrations of fine particles. Methods: A total of 180 slow-growing broiler chicks (Isa Label strain) aged one day were used. The animals were distributed in a completely randomized design with a 2 x 3 factorial scheme (Sex: male or female; Proportion of fine particles: 0, 50, or 100%), with six repetitions of five birds/cage. The birds received water and feed ad libitum during the 28-day experimental period. Results: The proportion of fine particles did not affect the metabolic, digestive or productive variables evaluated. Males showed better overall performance, while females produced better thigh and liver yields. Conclusion: The proportion of fine particles in pelleted feeds did not affect productive or metabolic parameters. Thus, improving pellet quality for slow-growing broilers during the initial rearing phase may not be justified.

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Author Biographies

Fabiana Ramos-Santos, Federal Institute of Goiás
Federal Institute of Goiás, Rio Verde, Brazil.

Deibity Alves-Cordeiro, Federal University of Goiás
Federal University of Goiás, Goiânia, Brazil.

Hyalo Batista-Santos, Federal Institute of Goiás
Federal Institute of Goiás, Rio Verde, Brazil.

Nayanne Rodrigues-Oliveira, Federal Institute of Goiás
Federal Institute of Goiás, Rio Verde, Brazil.

Maura-Regina Sousa-Silva, Federal Institute of Goiás
Federal Institute of Goiás, Rio Verde, Brazil.

Cibele Silva-Minafra, Federal Institute of Goiás
Federal Institute of Goiás, Rio Verde, Brazil.

Júlia-Marixara Sousa-Silva, Federal University of Goiás
Federal University of Goiás, Goiânia, Brazil.


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How to Cite

Ramos-Santos, F., Alves-Cordeiro, D., Batista-Santos, H., Rodrigues-Oliveira, N., Sousa-Silva, M.-R., Silva-Minafra, C., & Sousa-Silva, J.-M. (2020). The proportion of fine particles in pelleted diets does not affect performance of slow-growing broiler chicks. Revista Colombiana De Ciencias Pecuarias, 34(2), 84–94.



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