The effects of intensive feeding on reproductive performance in laboratory zebrafish (Danio rerio).

The zebrafish (Danio rerio) is among the most widely used model animals in scientific research. Historically, these fish have been reared in the laboratory using simple methods developed by home aquarists. For laboratories with high demand for breeding and generation turn-over, however, there has be...

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Main Authors: Isaac Adatto, Christian Lawrence, Lauren Krug, Leonard I Zon
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2022-01-01
Series:PLoS ONE
Online Access:https://doi.org/10.1371/journal.pone.0278302
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author Isaac Adatto
Christian Lawrence
Lauren Krug
Leonard I Zon
author_facet Isaac Adatto
Christian Lawrence
Lauren Krug
Leonard I Zon
author_sort Isaac Adatto
collection DOAJ
description The zebrafish (Danio rerio) is among the most widely used model animals in scientific research. Historically, these fish have been reared in the laboratory using simple methods developed by home aquarists. For laboratories with high demand for breeding and generation turn-over, however, there has been a shift away from this approach towards one that leverages techniques, tools, and feeds from commercial aquaculture to help accelerate growth rates and decrease generation times. While these advances have improved efficiency, the effects of feeding zebrafish diets that are designed to grow disparately related cold-water fish species to market size quickly are not well-understood. To explore the impacts that intensive feeding protocols may have on this species, groups of zebrafish larvae from two different wild-type lines were stocked into treatment tanks at a standard density of 10 fish per liter and were administered either a "high" or "low" food diet for a maximum of 63 days. During their growth phase, the "high" food diet group received at least 8x more rotifers and at least 2x more Artemia than the "low" food diet group. Growth, survival, and reproductive performance (fecundity and viability) were measured in these fish and in their offspring. We found that fish that were fed more grew more rapidly and were able to reproduce earlier than fish that were fed less, but they were also more likely to produce higher proportions of non-viable embryos.
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spelling doaj.art-7e122ecbf6bf49eea4e9e5a8271be7432023-01-09T05:31:03ZengPublic Library of Science (PLoS)PLoS ONE1932-62032022-01-011711e027830210.1371/journal.pone.0278302The effects of intensive feeding on reproductive performance in laboratory zebrafish (Danio rerio).Isaac AdattoChristian LawrenceLauren KrugLeonard I ZonThe zebrafish (Danio rerio) is among the most widely used model animals in scientific research. Historically, these fish have been reared in the laboratory using simple methods developed by home aquarists. For laboratories with high demand for breeding and generation turn-over, however, there has been a shift away from this approach towards one that leverages techniques, tools, and feeds from commercial aquaculture to help accelerate growth rates and decrease generation times. While these advances have improved efficiency, the effects of feeding zebrafish diets that are designed to grow disparately related cold-water fish species to market size quickly are not well-understood. To explore the impacts that intensive feeding protocols may have on this species, groups of zebrafish larvae from two different wild-type lines were stocked into treatment tanks at a standard density of 10 fish per liter and were administered either a "high" or "low" food diet for a maximum of 63 days. During their growth phase, the "high" food diet group received at least 8x more rotifers and at least 2x more Artemia than the "low" food diet group. Growth, survival, and reproductive performance (fecundity and viability) were measured in these fish and in their offspring. We found that fish that were fed more grew more rapidly and were able to reproduce earlier than fish that were fed less, but they were also more likely to produce higher proportions of non-viable embryos.https://doi.org/10.1371/journal.pone.0278302
spellingShingle Isaac Adatto
Christian Lawrence
Lauren Krug
Leonard I Zon
The effects of intensive feeding on reproductive performance in laboratory zebrafish (Danio rerio).
PLoS ONE
title The effects of intensive feeding on reproductive performance in laboratory zebrafish (Danio rerio).
title_full The effects of intensive feeding on reproductive performance in laboratory zebrafish (Danio rerio).
title_fullStr The effects of intensive feeding on reproductive performance in laboratory zebrafish (Danio rerio).
title_full_unstemmed The effects of intensive feeding on reproductive performance in laboratory zebrafish (Danio rerio).
title_short The effects of intensive feeding on reproductive performance in laboratory zebrafish (Danio rerio).
title_sort effects of intensive feeding on reproductive performance in laboratory zebrafish danio rerio
url https://doi.org/10.1371/journal.pone.0278302
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