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Appears in Collections:Aquaculture Journal Articles
Peer Review Status: Refereed
Title: Bioactive factors in microbial biomass have the capacity to offset reductions in the level of protein in the diet of black tiger shrimp, Penaeus monodon
Author(s): Glencross, Brett
Arnold, Stuart
Irvin, Simon
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Keywords: Prawns
Protein requirement
Microbial floc
Protein retention
Issue Date: 1-Sep-2015
Date Deposited: 13-Jul-2016
Citation: Glencross B, Arnold S & Irvin S (2015) Bioactive factors in microbial biomass have the capacity to offset reductions in the level of protein in the diet of black tiger shrimp, Penaeus monodon. Aquaculture, 446, pp. 74-79.
Abstract: A factorial experiment was conducted with black tiger shrimp (Penaeus monodon) juveniles to determine the effects of varying protein inclusion in the diet and also varying inclusion of a microbial biomass on growth, feed and nutrient utilization when fed in indoor laboratory conditions. The growth performance of the shrimp improved with increasing diet protein level. However, in the absence of the added microbial biomass, this growth performance plateaued at the 480. g/kg protein level. The addition of the microbial biomass improved growth at each inclusion level of both protein and microbial biomass. No plateau in growth was observed with the addition of the microbial biomass. Improvements in feed conversion were seen with increasing dietary protein levels and also the inclusion of the microbial biomass. Examination of the feed intake of each treatment supports that there was a combined effect of an increase in feed intake and improvements in feed conversion that contributed to the improvements in growth performance with the use of the microbial biomass, but the increases in dietary protein level largely influenced growth through improvements in feed conversion.
DOI Link: 10.1016/j.aquaculture.2015.04.007
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