Feasibility of fishmeal replacement by shrimp head silage protein hydrolysate in Nile tilapia (Oreochromis niloticus L) diets

Maribel Plascencia-Jatomea, Miguel A. Olvera-Novoa, José Luis Arredondo-Figueroa, George M. Hall, Keiko Shirai*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

60 Scopus citations

Abstract

This study provides information on the use of shrimp head silage protein hydrolysate (SPH) as an alternative protein source for tilapia feeding. Six diets (28% protein, 12% lipid) were prepared where fishmeal protein was replaced at levels of 0 (control), 10, 15, 20, 25 and 30% with the hydrolysate. The diets were supplied to Nile tilapia fry (338 mg initial weight) stocked in plastic recirculating 201 tanks (10 animals per tank), with three replicates per treatment. After an 8 week experimental period, fish fed the diets containing 10 and 15% SPH showed significantly better performance in terms of final body weight, weight gain (%), mean daily weight gain (mg day-1), specific growth ratio and feed conversion ratio than those fed the control diet (fishmeal as protein source) and higher-SPH diets. It is concluded that shrimp head hydrolysate is a promising alternative protein source for tilapia feeding, improving growth ratio at dietary inclusion levels as high as 15%. In addition, the diets with added shrimp silage protein were well accepted by the fish, which avidly consumed the feed during the experiment.

Original languageEnglish
Pages (from-to)753-759
Number of pages7
JournalJournal of the Science of Food and Agriculture
Volume82
Issue number7
DOIs
StatePublished - 15 May 2002
Externally publishedYes

Keywords

  • Fishmeal
  • Lactic acid fermentation
  • Nutrition
  • Protein hydrolysates
  • Shrimp wastes
  • Silage
  • Tilapia

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