Evaluación de harina de hojas de yuca en la alimentación de tilapia del Nilo GIFT

José E. Llanes - Iglesias; Pedro H. Toledo - Agüero

doi:10.19136/ta.a3n2.5753

Authors

José Llanes Empresa de Desarrollo de Tecnologías Acuícolas
Pedro H. Toledo - Agüero Catholic University of the North

DOI:

https://doi.org/10.19136/ta.a3n2.5753

Keywords:

carbohydrate, circular economy, local raw materials, fish

Abstract

Due to a growing interest in the use of local resources for fish feed, different inclusion levels (0, 6, 9, and 12 %) of cassava leaf meal (CLM) in the feeding of Nile tilapia GIFT (Oreochromis niloticus) fingerling were evaluated. A total of 144 animals, with an average initial weight of 0.36 ± 0.01 g, were utilized in the study. These animals were randomly assigned to four treatments with three replicates and analyzed using one-way analysis of variance and Duncan’s test at the 5% probability level, as necessary. The treatments consisted of four diets: the tilapia fingerling feed formulation (control) and the remaining diets with 6, 9, and 12 % CLM as partial replacements for the soybean and wheat meals in the control. No statistical differences were found in the amounts of feed (14.01, 13.36, 12.90, and 13.52 g) and protein supplied (4.32, 4.11, 3.91, and 4.02 g) per animal. Also, the final weights (6.50, 6.15, 6.13, and 5.98 g) and feed conversion ratio (2.28, 2.30, 2.22, and 2.38) were not affected by treatment (p > 0.05). Survival was appropriate across all diets (greater than 91,67 %). Feed costs and economic benefits favored all CLM treatments. The most significant savings were achieved at 9% (US$ 105.44 per ton). The inclusion of up to 12% cassava leaf meal does not compromise the productivity of GIFT Nile tilapia fingerlings and has a positive economic effect.

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