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| FERREIRA,POLLYANNA M.F.; CALDAS,DÉBORA W.; SALARO,ANA LÚCIA; SARTORI,SIRLENE S.R.; OLIVEIRA,JERUSA M.; CARDOSO,ALEX J.S.; ZUANON,JENER A.S.. |
| ABSTRACT This study aimed to evaluate the effect of oregano oil on the intestinal and liver morphometry of yellow tail tetra, Astyanax altiparanae. Fish (1.46 ± 0.09 g) were kept in a 60-L aquaria, at a stocking density of 0.5 fi sh L-1. Six diets containing varying amounts of oregano oil were evaluated (0.0; 0.5; 1.0; 1.5; 2.0 and 2.5 g of oregano oil kg-1). At the end of 90 days, the fi sh were euthanised. Four intestines and four livers were collected per treatment, which were fi xed in Bouin and embedded in resin. For height and width folds, the absorption surface area and thickness of the muscular layer a positive linear effect of oregano oil was observed. A decrescent linear effect on the total number of goblet cells was also observed. For the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Carvacrol; Growth promoter; Intestinal histology; Liver histology; Origanum vulgare; Thymol. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000300911 |
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| SALARO,ANA LUCIA; OLIVEIRA JUNIOR,JOSÉ C.; LIMA,FREDERICO W.; FERRAZ,RENATO B.; PONTES,MARCELO D.; CAMPELO,DANIEL A.V.; ZUANON,JENER A.S.; LUZ,RONALD K.. |
| ABSTRACT The aim of this study was to evaluate commercial gelatin in the total replacement of bovine heart in feed training of "pacamã" Lophiosilurus alexandri in different water salinities. A completely randomized experimental design, in a 2 × 3 factorial arrangement, was performed using two types of moist ingredients (bovine heart and gelatin) and three water salinities (0.0; 2.0 and 4.0 g of salt L-1) with three replications. Juveniles (2.39 ± 0.08 cm standard length and 0.20 ± 0.03 g of weight) were conditioned to accept commercial diets by the technique of the gradual transition of ingredients. At the end of 36 days no differences were observed to weight gain, length gain and specific growth rate. The feed training efficiency was better (P < 0.05)... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Carnivorous fish; Feed training efficiency; Management efficiency; Neotropical fish. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652015000502281 |
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