Consulta: subjectFacets:"Aquafeeds"
Registros recuperados: 2
Data/hora: 03/06/2024 06:25:38

Use of a mixture of vegetal (Jatropha curcas) and animal (fish silage) byproducts as protein source in shrimp (Litopenaeus vannamei) diets
Provedor de dados: 96
Autores: Rodríguez-González,Hervey; López-Aguilar,Martín R.; Fonseca-Madrigal,Jorge; Martínez-Palacios,Carlos A.; García-Ulloa,Manuel.
ABSTRACT This study evaluated growth responses of white shrimp Litopenaeus vannamei by testing different combinations of Jatropha curcas kernel meal (JCK) and tilapia waste silage (FS) as dietary protein sources under laboratory and pond conditions. A reference diet (RD) based on fish meal was elaborated to contain 35% crude protein and 434 kcal/g; then, five isoproteic and isoenergetic experimental diets were formulated from RD with different FS/JCK proportions as follows: 75%FS/0%JCK; 56.25%FS/13.25%JCK; 26.5%FS/30.89%JCK; 18.75%FS/39.75%JCK; and 0%FS/53%JCK. For the laboratory trial, shrimp (2.90 g) were stocked at 10 m2 in an indoor recirculating system during 90 days. There were differences among the growth parameters of diets. Mean weight gain...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Alternative diets; Aquafeeds; Growth performance; Survival; White shrimp.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982018000100108

Crambe (Crambe abyssinica) and sunflower (Helianthus annuus) protein concentrates: production methods and nutritional properties for use in fish feed
Provedor de dados: 42
Autores: LOVATTO,NAGLEZI M.; GOULART,FERNANDA R.; LOUREIRO,BRUNO B.; SPERONI,CAROLINE S.; BENDER,ANA B.B.; GIACOMINI,SANDRO J.; RADÜNZ NETO,JOÃO; SILVA,LEILA P. DA.
ABSTRACT The purpose of this study was to develop and improve protein concentration techniques for two industrial by-products with the potential for use in fish feed. In particular, we chemically characterized crambe meal and sunflower meal and their protein concentrates. Three different protein concentration methods were tested: isoelectric pH (pHi), acid pH and alkaline pH. For crambe and sunflower meals extraction using the pHi method was most efficient in terms of protein yield and crude protein content in the concentrates; this method also increased lysine and methionine content in the concentrates. The water holding capacity of the sunflower protein concentrate was greater than that of the crambe protein concentrate. The crambe protein concentrate...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amino acids; Antinutrients; Aquafeeds; Byproducts; Phenolic compounds; Protein concentration.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000502495