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Productive performance of Nilotic tilapia (Oreochromis niloticus) fingerlings fed a diet with pronutrients

23/07/2019 Author: Technonews VD

Intestinal conditioner pronutrients are active molecules with a botanic origin that can optimize intestinal physiology, improving digestion and intestinal absorption.

Nilotic tilapia (Oreochromis niloticus) is a freshwater specie with a high interest in aquaculture, in fact, it is the fourth specie in terms of production worldwide, with 4200 thousand tons per year (SOFIA report, FAO 2018).

Objective

Evaluate the effects of intestinal conditioner pronutrients supplementation in diets of Nilotic tilapia (Oreochromis niloticus) fingerlings by assessing productive parameters in a recirculating system.

Material and methods

The assay was carried out in the Universidad Científica del Sur (UCSUR), in Lima, Peru. Fingerlings, with a weight average of 0.9 grams, were taken from the Centro de Investigación Piscícola de la Facultad de Pesquería de la Universidad Nacional Agraria La Molina.

Treatments:

Control diet: 0 g/kg of pronutrients
Experimental diet: 10 g/kg of pronutrients

Nile tilapia: control vs experimental diet — Table 1. Diets used during de assay. Formulated diet was isoproteic (36% crude protein) and isoenergetic (4200 kcal/kg).

They were made 4 replicates per each treatment, using 15 fingerlings per replicate. Feed was ad-libitum during the 70 days of the assay. Temperature, mortality, water quality and feed, were checked daily, and diet remnants were removed.

Environmental parameters during the assay:

Assay environmental parameters — Table 2. Environmental parameters registered during the assay.

Results

Nile tilapia: obtained productive parameters — Table 3. Productive parameters obtained during the assay.

The experimental diet achieved an improvement of FCR of 9% and an increase of 3% of the specific growth rate, in comparison with the control diet.

Nile tilapia growth — Graphic 1. Growth during the assay of the control group and the experimental group.

The growth improvement was shown after the 30 day of treatment. Based on the study we can affirm that there is an optimal age and size to administer pronutrients.

Conclusion

Diets including intestinal conditioner pronutrients improve the feed conversion rate (FCR) by 9% during fingerling stage. Intestinal conditioner pronutrients are commercialized under the name of Alquernat Nebsui, by Biovet S.A.