The effect of vitamin C on growth factors, survival, reproduction and sex ratio in guppy (Poecilia reticulata).
Journal Title: Aquaculture, Aquarium, Conservation & Legislation - International Journal of the Bioflux Society - Year 2010, Vol 3, Issue 3
Abstract
This study was conducted to examine the effects of dietary vitamin C (Ascorbic Acid, AA) on growth factors, survival, reproductive performance and sex ratio in guppy (Poecilia reticulata Peters,1859). Guppies were divided into 5 treatments with triplicate groups and fed with one of 5 diets for 20 weeks. The experimental vitamin C diets were formulated to contain 400, 800, 1200 and 2000 mg AA kg-1 (treatment 1, 2, 3 and 4 respectively) with 1 control group. The data obtained from the trial were subjected to one-way analysis of variance (ANOVA) to test for effects of dietary treatments. In vitamin C treatments the body weight increase (BWI), percent body weight increase (PBWI), specific growth rate (SGR), daily growth rate (DGR) and reproductive performance of guppies were increased significantly with increasing the levels of vitamin C (P<0.05) and highest BWI, PBWI, SGR and DGR were observed in treatment 4. There were no significant differences in sex ratio observed between the treatments. In survival rate there was significant difference between treatment 2 with treatments 1, 3 and control (P<0.05). This study indicates that BWI, PBWI, SGR and DGR and reproductive performance can be improved by dietary vitamin C supplementation and also may be concluded that the vitamin C requirement of guppies fish for optimum growth and reproductive performance is 2000 mg/kg of dry diet.
Authors and Affiliations
Bahareh Mehrad, Mohammad Sudagar
Keywords
Related Articles
- EP ID EP129339
- DOI -
- Views 173
- Downloads 0
Swollen hindgut syndrome (SHG) of tiger shrimp Penaeus monodon (Crustacea, Malacostraca, Penaeidae) post larvae: Identification of causing pathogenic bacteria and their sensitivity to some antibiotics.
Swollen Hindgut syndrome (SHG) of black tiger shrimp Penaeus monodon Fabricius, 1798 post larvae has been reported from Bangladesh shrimp hatcheries in recent years. At present SHG is a budding problem causing sig...
Seasonal pattern and community structure of fishes in the shallow tidal creek of Obitsu-gawa River Estuary of inner Tokyo Bay, central Japan
Seasonal pattern and the community structure of fishes in the shallow tidal creek of Obitsugawa River Estuary of inner Tokyo Bay was studied for one year. Family Gobiidae corresponded to 98% of the total catch. Dominant...
Growth rate of the chub (Squalius cephalus) and the nase (Chondrostoma nasus) from Raba, Dunajec, and Poprad River
In presented study growth rate of the chub Squalius cephalus and nase Chondrostoma nasus from Raba, Dunajec, and Poprad River were investigated using a back-scaling method. A total number of 167 chubs and 186 nases were...
Influence of food and age on breeding and reproductive performances in a rainbow trout population
In this work paper we want to found what is the relation between some morphological features and level of sexual products in a rainbow trout population of 3 and 4 years age. Also, we investigated the influence of extrude...
Rotifer (Brachionus plicatilis) culture in batch system with suspension of algae (Nannochloropsis oculata) and bakery yeast (Saccharomyces cerevisiae
The rotifer Brachionus plicatilis is commonly cultured and used in hatcheries as the first feed of marine and fresh water fish larvae. Several cultivation techniques have been developed and applied in hatcheries by aqua...