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Comparison of three inert markers in measuring apparent nutrient digestibility of juvenile abalone under different culture condition and temperature regimes

Citation

Nur, KU and Adams, L and Stone, D and Savva, N and Adams, M, Comparison of three inert markers in measuring apparent nutrient digestibility of juvenile abalone under different culture condition and temperature regimes, IOP Conf. Series: Earth and Environmental Science, 24-25 July 2017, Yogyakarta, Indonesia, pp. 012004. ISSN 1755-1307 (2018) [Refereed Conference Paper]


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DOI: doi:10.1088/1755-1315/139/1/012004

Abstract

A comparative research using three inert markers, chromic oxide, yttrium and ytterbium to measure the apparent nutrient digestibility of experimental feed in juvenile Hybrid abalone (Haliotis rubra X H. laevigata) and Greenlip abalone (H.laevigata) revealed that apparent digestibility of crude protein (ADCP) measured using yttrium and ytterbium in hybrid abalone were significantly different across the treatments. Protein digestibility measured in experimental tanks was higher than those measured in indoor and outdoor commercial tanks, regardless of inert marker used. Chromic oxide led to overestimated ADCP compared to when measured using yttrium and ytterbium. There were no significant interactions between temperature and inert markers when measuring ADCP and apparent digestibility of gross energy (ADGE). However, there was a significant difference of ADCP amongst inert markers when measured in greenlip abalone cultured at two temperatures. While measurements of ADGE calculated using three inert markers shared the same value.

Item Details

Item Type:Refereed Conference Paper
Keywords:abalone, digestibility, inert markers
Research Division:Agricultural and Veterinary Sciences
Research Group:Fisheries Sciences
Research Field:Aquaculture
Objective Division:Animal Production and Animal Primary Products
Objective Group:Fisheries - Aquaculture
Objective Field:Aquaculture Molluscs (excl. Oysters)
UTAS Author:Adams, L (Dr Louise Adams)
UTAS Author:Adams, M (Dr Mark Adams)
ID Code:130910
Year Published:2018
Deposited By:Fisheries and Aquaculture
Deposited On:2019-02-20
Last Modified:2019-02-21
Downloads:0

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