Energy values and chemical composition of spirulina (Spirulina platensis) evaluated with broilers

Revista Brasileira de Zootecnia

Renata Ribeiro Alvarenga²  Paulo Borges Rodrigues²  Vinícius De Souza Cantarelli²  Márcio Gilberto Zangeronimo¹  José Walter Da Silva Júnior¹  Leonardo Rafael Da Silva²  Luziane Moreira Dos Santos²  Luciano José Pereira¹ 

[1] ,Universidade Federal de Lavras Departamento de Zootecnia

关键词: non-conventional food;    nutritional value;    total collection;    alimento não-convencional;    coleta total;    valor nutricional;   

DOI  :  10.1590/S1516-35982011000500008

来源: SciELO

【 摘 要 】

The objective of this study was to determine the chemical and energy composition of spirulina (Spirulina platensis), the nutrient metabolizability coefficients, and the values of apparent metabolizable energy (AME) and the apparent metabolizable energy corrected for nitrogen balance (AMEn) in broilers. A digestibility trial was carried out by using total excreta collection method, with 90 Cobb 500 lineage chicks, with initial weight of 256 ± 5 g at 11 days of age. Birds were allotted in metabolic cages for 10 days, distributed in a completely randomized design, with three treatments and six repetitions with five birds each. Diets consisted on a reference-ration based on corn and soybean meal and two test diets, one containing spirulina (30%) and the other one with soybean meal (30%). Spiruline was superior to soybean meal for contents of dry matter (DM), gross energy (9.60%), crude protein (26.56%), ether extract (54.45%), mineral matter (42.77%), calcium (100%) and total phosphorus (130.77%) and also for most amino acids, except lysine, glutamate, histidine and proline. Nevertheless, spiruline presented lower values of gross fiber (83.95%), acid detergent fiber (85.12%) and neutral detergent fiber (6.15). The AME and AMEn values (kcal/kg of DM) were, respectively, 2,906 and 2,502 for the spirulina and 2,646 and 2,340 for the soybean meal and AMEn of spirulina was 6.92% higher than soybean meal.

【 授权许可】

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