Document Detail


Effect of housefly maggot meal (magmeal) diets on the performance, concentration of plasma glucose, cortisol and blood characteristics of Oreochromis niloticus fingerlings.
MedLine Citation:
PMID:  18662361     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
A 56-day feeding trial was conducted to access the effect of housefly maggot meal (magmeal) diets on the performance, concentration of plasma glucose, cortisol and blood characteristics of Oreochromis niloticus fingerlings. Seven feeds formulated to contain 36% protein and 20 kJ g(-1) gross energy (dry matter basis), were prepared by replacing fish meal with magmeal. Fifteen fingerlings (initial average weight 2.0 +/- 0.1 g) stocked per experimental tank were fed in triplicates at 5% body weight in two portions per day (a level previously established). Growth and food conversion ratio were adequate and comparable without any significant differences (p < 0.5) between feeding groups. Mean values for haematocrit and plasma glucose were not significantly different (p < 0.05) among the feeding groups. Fish group fed control diet (containing highest inclusion level of fish meal and without magmeal) gave the lowest haemoglobin concentration (5.96 +/- 0.22 g dl(-1)). This value was significantly different from other feeding groups. Stressful conditions in fish and in mammals are associated with decreased growth, haematocrit (packed cell volume) and haemoglobin values, increased whole blood glucose (hyperglycaemia) and plasma cortisol concentrations. No such physiological changes were observed in this study. Results suggest that feeding O. niloticus fingerling with magmeal diets did not cause any form of physiological stress. Magmeal can be used as a good alternative protein source in tilapia diets.
Authors:
J O Ogunji; W Kloas; M Wirth; N Neumann; C Pietsch
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2007-11-07
Journal Detail:
Title:  Journal of animal physiology and animal nutrition     Volume:  92     ISSN:  1439-0396     ISO Abbreviation:  J Anim Physiol Anim Nutr (Berl)     Publication Date:  2008 Aug 
Date Detail:
Created Date:  2008-07-29     Completed Date:  2008-10-17     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  101126979     Medline TA:  J Anim Physiol Anim Nutr (Berl)     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  511-8     Citation Subset:  IM    
Affiliation:
Department of Animal Production and Fisheries Management, Ebonyi State University, Abakaliki, Nigeria. Ogunjijo@yahoo.com
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MeSH Terms
Descriptor/Qualifier:
Animal Feed
Animal Nutritional Physiological Phenomena
Animals
Blood Chemical Analysis / veterinary
Blood Glucose / metabolism*
Cichlids / blood*,  growth & development*
Diet*
Hematocrit / veterinary
Hemoglobins / metabolism
Houseflies*
Hydrocortisone / blood*
Larva
Random Allocation
Chemical
Reg. No./Substance:
0/Blood Glucose; 0/Hemoglobins; 50-23-7/Hydrocortisone

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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