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

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

= 141 veces | PDF
= 156 veces|


Download data is not yet available.

Author Biographies

Fabiana Ramos-Santos, Goiano Federal Institute
Goiano Federal Institute, Rio Verde, Brazil.

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

Hyalo Batista-Santos, Goiano Federal Institute
Goiano Federal Institute, Rio Verde, Brazil.

Nayanne Rodrigues-Oliveira, Goiano Federal Institute
Goiano Federal Institute, Rio Verde, Brazil.

Maura-Regina Sousa-Silva, Goiano Federal Institute
Instituto Federal Goiano, Rio Verde, Brazil.

Cibele Silva-Minafra, Goiano Federal Institute
Goiano Federal Institute, Rio Verde, Brazil.

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


Abdollahi MR. Influence of feed processing on the performance, nutrient utilisation and gut development of poultry and feed quality. Thesis - Massey University 2011: 195f.

Abdollahi MR, Ravindran V, Svihus B. Influence of grain type and feed form on performance, apparent metabolisable energy and ileal digestibility of nitrogen, starch, fat, calcium and phosphorus in broiler starters. Anim Feed Sci Tech 2013; 186(3-4):193-203. DOI:

Amerah AM, Ravindran V, Lentle RG. Feed particle size: Implications on the digestion and performance in poultry. Worlds Poult Sci J 2007; 63(3):439-451. DOI:

Api I, Takahashi SE, MendesAS, Paixao SJ, Refati R, Restelatto R. Efeito da sexagem e linhagens sobre o desempenho e rendimento de carcaca de frangos de corte. Ciénc anim bras 2017; 18:1-10. DOI:

Barbosa TS, Mori CK, Polónio LB, Ponsano EHG, Ciarlini PC. Perfil bioquímico sérico de galinhas poedeiras na regiao de Aracatuba, SP. Semin CiencAgrar 2011; 32(4):1583-1588. DOI:

Corzo A, Mejia L, Loar IIRE. Effect of pellet quality on various broiler production parameters. J Appl Poult 2011; 20:68-74. DOI: https://doi:10.3382/japr.2010-00229

Detmann E, Souza MA, Valadares Filho SC, Queiroz AC, BerchiellI TT, Saliba EOS, Cabral LS, Pina DS, Ladeira MM, Azevedo JAG. Métodos para análise de alimentos. Visconde do Rio Branco: Suprema, 2012. 214p.

Engberg RM, Hedemann MS, Jensen BB. The influence of grinding and pelleting of feed on the microbial composition and activity in the digestive tract of broiler chickens. Br Poult Sci 2002; 44:569-579. DOI:

Fanatico AC, Pillai PB, Hester PY, Falcone C, Mench JA, Owens CM, Emmert JL. Performance, livability, and carcass yield of slow- and fast-growing chicken genotypes fed low-nutrient or standard diets and raised indoors or with outdoor access. Poult Sci 2008; 87:1012-1021. DOI:

Fanatico AC, Born H. Label rouge: pasture-based poultry production in France. ATTRA -A National Sustainable Agriculture Assistance Program 2002; [Accessed in May 2018] URL:

Freitas ER, Sakomura NK, Dahlke F, Santos FR, Barbosa NAA. Desempenho, eficiéncia de utilizacao dos nutrientes e estrutura do trato digestório de pintos de corte alimentados na fase pré-inicial com racoes de diferentes formas físicas. Rev Bras Zootec 2008; 37:73-78. DOI:

Klein CH. Efeito da forma física e do nível de energia da racao sobre o desempenho, a composicao de carcaca e a eficiéncia de utilizacao da energia metabolizável consumida por frangos de corte. 1996. 97f. Dissertacao de Mestrado -Universidade Federal do Rio Grande do Sul.

Lara LJC, Baiao NC, Rocha JSR, Lana AMQ, Cancado SV, Fontes DO, Leite RS. Influence of physical form of ration and lineage on the performance and yield of broiler cuts. Arq Bras Med Vet Zootec 2008; 60(4):970-978. DOI:

López CAA, Baiao NC. Effects of whole and separate grinding of feed ingredients and physical form ofration on performance ofbroiler chickens. ArqBrasMedVetZootec2002; 54:189-195. DOI:

López CAA, Baiao NC. Effects of particle size and physical form of ration on performance, carcass yield and weight of digestive organs of broiler chickens. Arq Bras Med Vet Zootec 2004; 56:214-221. DOI:

López CAA, Baiao NC, Lara LJC, Rodriguez NM, Cancado SV. Effects of physical form of ration on feed digestibility and performance of broiler chickens. Arq Bras Med Vet Zootec 2007; 59(4):1006-1013. DOI:

Lowe R. Judging pellet stability as part of pellet quality. Feed Tech 2005; 9(2); [Accessed in september 2019] URL:

McCracken KJ. Effects of physical processing on the nutritive value of poultry diets. In: Poultry feedstuffs: Supply, composition and nutritive value. Cabi Publishing 2002; 16:301-316. DOI:

McKinney LJ, Teeter RG. Predicting effective caloric value of nonnutritive factors: I. pellet quality and II. prediction of consequential formulation dead zones. Poult Sci 2004; 83:1165-1174. DOI:

Mendonca MO, Sakomura NK, Santos FR, Freitas ER, Fernandes JBK, Barbosa NAA. Metabolizable energy levels for slow growth male broilers raised in semi confined system. R Bras Zootec 2008; 37(8):1433-1440. DOI:

Moran Jr ET. Pelleting: affects feed and its consumption. Poult Sci 1987; 5:30-31.

Rougiére N, Gomes J, Mignon-Grasteau S, Carré B. Effects of diet particle size on digestive parameters in D+ and D- genetic chicken lines selected for divergent digestion efficiency. Poult Sci 2009; 88:1206-1215. DOI:

Sakomura NK, Rostagno HS. Métodos de pesquisa em nutricao de monogástricos. 2nd ed. Jaboticabal: FUNEP, 2016.

Santos AL, Sakomura NK, Freitas ER, Sá Fortes CML, Carrilho ENVM, Fernandes JBK. Growth, Performance, Carcass Yield and Meat Quality of Three Broiler Chickens Strains. Rev Bras Zootec 2005; 34(5):1589-1598. DOI:

Santos FR, Stringhini JH, Freitas NF, Minafra CS, Oliveira PR, Duarte EF, Guimaraes GS. Morphological and morphometric aspects of the digestive apparatus, serum biochemical measures and activity of pancreatic enzymes of slow- and fast-growing broilers. Rev Bras Ci Ag 2015; 10(2):322-327. DOI:

Santos FR, Stringhini JH, Oliveira PR, Duarte EF, Minafra CS, Café MB. Values of Metabolizable Energy and Metabolization of Nutrients for Slow- and Fast-growing Birds at Different Ages. Br Poult Sci 2015; 17(4):517-522. DOI:

Verdal H, Mignon-Grasteau S, Jeulin C, Le Bihan-Duval E, Leconte M, Mallet S, Martin C, Narcy A. Digestive tract measurements and histological adaptation in broiler lines divergently selected for digestive efficiency. Poult Sci 2010; 89:1955-1961. DOI: https://doi.org10.3382/ps.2010-813

Zohair GAM, Al-Maktari GA, Amer MA. Comparative effect of mash and pellet feed on broiler performance and ascites at high altitude (Field Study). Global Veterinaria 2012; 9:154-159. DOI:

Original research articles