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Apparent digestibility of common feed ingredients by juvenile haddock, Melanogrammus aeglefinus L.

From National Research Council Canada

DOIResolve DOI: https://doi.org/10.1111/j.1365-2109.2004.01060.x
AuthorSearch for: 1; Search for: 1; Search for: 1
Affiliation
  1. National Research Council of Canada. NRC Institute for Marine Biosciences
FormatText, Article
Subjectenergy; gadoids; haddock; lipid; protein
Abstract
The digestible energy (DE) content and the apparent digestibility coefficients (ADCs) of nutrients in common feed ingredients available in Atlantic Canada for haddock, Melanogrammus aeglefinus, feed formulations were determined. Juvenile haddock (mean weight, 93.9±2.1 g) were held in tanks equipped with fecal collection columns and fed practical fish meal-based diets for 5 weeks. The experimental diets consisted of a reference diet and six test diets, each containing 30% test ingredient, with all diets being supplemented with chromic oxide (Cr2O3, 5 g kg1) as the inert digestion indicator. Three marine fish by-products, herring meal (HM), shrimp meal (SM) and crab meal (CRM) and three plant protein supplements, dehulled soybean meal (SBM), canola meal (CAM) and corn gluten meal (CGM) were the test ingredients. The DE content of HM, SBM, CGM, CRM, CAM and SM were 18.3, 18.0, 17.8, 12.4, 10.9 and 8.8 MJ kg1 respectively. Protein ADCs were 95.9%, 92.2%, 92.3%, 82.0%, 83.0% and 73.5% respectively. Organic matter ADCs were 95.9%, 89.0%, 72.6%, 68.9%, 58.9% and 54.9% respectively. Lipid ADCs were 97.9%, 83.0%, 57.4%, 62.0%, 87.2% and 55.8% respectively. Based upon its high crude protein content and nutrient ADC and DE content, properly processed dehulled SBM was found to be a good plant protein supplement to partially replace HM in haddock feeds.
Publication date
In
  • Aquaculture Research 35, no. 7 (19 April 2004): 643–651.
LanguageEnglish
Peer reviewedYes
NRC numberNRCC 54688
1334
NPARC number3538084
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Record identifier0ad89c29-b85a-401e-bf27-c634e9035550
Record created2009-03-01
Record modified2020-04-17
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