Benefits of using the probiotic Efinol^®L during transportation of cardinal tetra,Paracheirodon axelrodi(Schultz), in the Amazon

Abstract

The objective of this experiment was to test the probiotic E¢nol s L during transportation of cardinal tetra, Paracheirodon axelrodi (Schultz). For the transportation, ¢sh were distributed in 18 plastic tanks, of which nine contained the E¢nol s L (10 mg L À 1 ; probiotic treatment) and the remaining had no probiotic (control treatment). Transport lasted 24 h and three di¡erent boxes of each treatment were sampled at 3, 12 and 24 h. Up to the 12-h sampling period, no sig-ni¢cant di¡erence in the survival was observed; on the other hand, survival was higher at the end of the transport (24 h) in the probiotic treatment. No significant di¡erence was found in dissolved oxygen and temperature between treatments. Conductivity, pH and alkalinity increased along the transport, but without a di¡erence between treatments. Ammonia increased in all treatments, although it was signi¢cantly lower in the probiotic group at 24 h. Cortisol levels were signi¢cantly higher in all transported ¢sh when compared with the basal values. At 24 h, cortisol levels in control ¢sh were signi¢cantly higher than those in the probiotic treatment.With the observed results, we are able to conclude that the probiotic E¢nol s L is e⁄cient during cardinal transport, lowering the mortality and helping maintain water quality possibly by lowering metabolic wastes.

Effect of beta 1,3 glucan in stress responses of the pencilfish (Nannostomus trifasciatus) during transport within the rio Negro basin

“…The concentrations of beta 1,3 glucan tested, which ranged from 10.11 to 19.64 ηg.g wet tissue -1 at the beginning of the transport to 6.63 to 13.91 ηg.g wet tissue -1 on arrival did not differ significantly from those found 24 hours after transport (8.22 to 9.63 ηg.g wet tissue -1 ). Cortisol levels in this study are similar to basal values reported by Gomes et al (2008Gomes et al ( , 2009 ), suggesting this species may respond more moderately to stress caused by this procedure.…”

“…Despite the importance of the ornamental fish trade in the Amazon region, studies that address the impacts of stress arising from the capture and transport process in Amazonian species is still very limited (Gomes et al, 2008(Gomes et al, , 2009Brinn et al, 2012). in the water helps raise conductivity.…”

“…Control of water quality during transportation can result in mortality rates around 5% on arrival, which is deemed acceptable by the export industry (Lim et al, 2003). Previous studies have demonstrated the addition of probiotic Efinol ® L improved water quality during transport, decreasing the stress responses of marbled hatchetfish, Carnegiella strigata (Gomes et al, 2008) and reducing mortality of the cardinal tetra, Paracheirodon axelrodi (Gomes et al, 2009). However, in local cururu stingrays (Potamotrygon cf.…”

Use of sodium chloride and zeolite during shipment of Ancistrus triradiatus under high temperature

“…In a characterization of the conditions of artisanal fish capturing and shipment of the ornamental fish of the family Loricariidae in the state of Meta, Colombia, Ramírez-Duarte et al (2009) In order to minimize the adverse effects associated with fish shipment, a variety of techniques have been developed to be applied during their shipment, such as reducing the water temperature (Lim et al, 2003;Golombieski et al, 2003), use of anesthetics (Iversen et al, 2009;Hasan & Bart, 2007), zeolite, buffer substances (Singh et al, 2004), probiotics (Gomes et al, 2009), and salt (Carneiro & Urbinati, 2001), among others.…”

Evaluación del cloruro de sodio, eugenol y zeolita en el confinamiento de Ancistrus triradiatus

“…A variety of techniques have been developed to mitigate the negative effects of these procedures. To improve the transport conditions of live fish, and increase their survival rate, various practices have been implemented, such as feeding management (Pan et al, 2010), use of loading densities appropriate to the species (Gomes et al, 2003a(Gomes et al, , 2003bUrbinatiet al, 2004), reduction of water temperature (Golombieski et al, 2003;Lim et al, 2003), and addition of salt (Carneiro and Urbinati, 2001;Gomes et al, 2003a), anesthetics (Iversenet al, 2009;Pramodet al, 2010), and ion exchange resins to the water (Singh et al, 2004), and also the use of probiotics (Gomes et al, 2009).…”