Data/hora: 08/06/2024 09:36:27

Biblioteca(s): | Embrapa Meio Ambiente.
Data corrente: | 04/08/2017
Data da última atualização: | 21/04/2022
Autoria: | HISANO, H.; SANCHEZ, M. S. dos S.; NASCIMENTO, M. S.
Afiliação: | HAMILTON HISANO, CPAO; MILENA SOUZA DOS SANTOS SANCHEZ, Unioeste; MARCELO DOS SANTOS NASCIMENTO, Unioeste.
Título: | Citric acid as a feed additive in pacu Piaractus mesopotamicus (Holmberg, 1887) diets.
Ano de publicação: | 2017
Fonte/Imprenta: | Journal of Applied Ichthyology, v. 33, n. 3, p. 478-484, 2017.
DOI: | http://dx.doi.org/10.1111/jai.13289
Idioma: | Inglês
Conteúdo: | Summary: The objective of this study was to evaluate citric acid (0.0, 1.0, 2.0 and 3.0%) in isonitrogenous (23% of digestible protein) and isoenergetic (13.38 MJ of digestible energy/kg) pacu Piaractus mesopotamicus (Holmberg, 1887) diets. A 90- day feeding trial was conducted to evaluate the growth performance, haematological parameters and pH of the diets, stomach and gut, somatic indices, nitrogen retention and body composition of pacu juveniles. Fish (n = 160, 12.53 ± 0.17g) were distributed in 16 aquaria (300- L) with a recirculating water system (4 L/min) and controlled temperature (25.26 ± 0.47°C) in an experimental design completely randomized with four treatments and four replicates. Posteriorly, apparent digestibility coefficients (ADC) were assessed with pacu (n = 96, 80.35 ± 5.12 g) fed experimental diets including 0.1% chromium oxide III. Diet pH decreased (p < .05) with graded levels of citric acid to reduce pH in the stomach and gut. Pacu fed with 2.0% citric acid showed superior (p < .05) final weight at 30 days, compared to control; however, this did not differ by 60 and 90 days where was no difference (p > .05) in the haematology, somatic indices, body composition, or digestibility among treatments. The data showed that dietary citric acid improved the growth of pacu at 30 days, but had no long- term effects on the digestibility of nutrients or the availability of P or Ca in the experimental diets.
Thesagro: | Ácido cítrico; Aditivo; Nutrição animal; Pacu; Suplemento alimentar.
Thesaurus Nal: | Citric acid; Food additives; Freshwater fish.
Categoria do assunto: | L Ciência Animal e Produtos de Origem Animal
Registro original: | Embrapa Meio Ambiente (CNPMA)
Exemplares: | CNPMA - (15558-1) - UPC - AP - DD -  -  -  - DIS