The influence of oil extraction process of different rapeseed varieties on the ileal digestibility of crude protein and amino acids in broiler chickens

The current study assessed the effect of rapeseed variety and oil extraction process on the apparent and standardised ileal digestibility (AID, SID) of crude protein (CP) and amino acids (AA) in rapeseed co-products in broiler chickens. PR46W21 and DK Cabernet rapeseed varieties were de-oiled by sof...

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Main Authors:	Kasprzak, M.M., Houdijk, J.G.M., Olukosi, O.A., Appleyard, H., Kightley, S.P.J., Carre, P., Wiseman, J.
Format:	Article
Language:	English
Published:	Elsevier Masson 2017
Online Access:	http://eprints.nottingham.ac.uk/44227/ http://eprints.nottingham.ac.uk/44227/ http://eprints.nottingham.ac.uk/44227/ http://eprints.nottingham.ac.uk/44227/1/Paper%207.pdf

id	nottingham-44227
recordtype	eprints
spelling	nottingham-442272018-04-10T14:18:25Z http://eprints.nottingham.ac.uk/44227/ The influence of oil extraction process of different rapeseed varieties on the ileal digestibility of crude protein and amino acids in broiler chickens Kasprzak, M.M. Houdijk, J.G.M. Olukosi, O.A. Appleyard, H. Kightley, S.P.J. Carre, P. Wiseman, J. The current study assessed the effect of rapeseed variety and oil extraction process on the apparent and standardised ileal digestibility (AID, SID) of crude protein (CP) and amino acids (AA) in rapeseed co-products in broiler chickens. PR46W21 and DK Cabernet rapeseed varieties were de-oiled by soft and standard hexane extraction, producing soft rapeseed meal (SRSM) and rapeseed meal (RSM), respectively. The soft, non-standard hexane extraction method was designed to reduce heat treatment that occurs prior to hexane extraction in order to maximise potential genetic differences in digestibility values of rapeseed co-products. The test meals were incorporated into semi-synthetic diets at a level of 500 g/kg; diets were fed to 14-day old paired chickens (n = 6 pairs) for ten days, when ileal digesta was collected post-slaughter from Meckel’s diverticulum to the ileal-caecal junction. The AID and SID of CP and AA were determined using titanium dioxide as inert dietary marker. The variety PR46W21 showed a greater AID and SID of CP, arginine, leucine, methionine, cysteine, phenylalanine, valine and lysine in RSM compared to the DK Cabernet RSM (p < 0.05). The soft processing increased AID and SID of CP, histidine and lysine in SRSM of PR46W21 and DK Cabernet compared to their RSM counterparts (p < 0.05). An interaction between variety and processing was only observed for AID and SID of tryptophan (p < 0.001), as only in PR46W21 standard processing reduced the tryptophan SID compared to its soft processed counterpart. The data support the view that the selection of rapeseed variety and modification of thermal treatment during the oil extraction might improve nutritional value of rapeseed meals. Elsevier Masson 2017-03-24 Article PeerReviewed application/pdf en cc_by_nc_nd http://eprints.nottingham.ac.uk/44227/1/Paper%207.pdf Kasprzak, M.M. and Houdijk, J.G.M. and Olukosi, O.A. and Appleyard, H. and Kightley, S.P.J. and Carre, P. and Wiseman, J. (2017) The influence of oil extraction process of different rapeseed varieties on the ileal digestibility of crude protein and amino acids in broiler chickens. Animal Feed Science and Technology, 227 . pp. 68-74. ISSN 0377-8401 http://www.sciencedirect.com/science/article/pii/S0377840117300639?via%3Dihub doi:10.1016/j.anifeedsci.2017.03.009 doi:10.1016/j.anifeedsci.2017.03.009
repository_type	Digital Repository
institution_category	Local University
institution	University of Nottingham Malaysia Campus
building	Nottingham Research Data Repository
collection	Online Access
language	English
description	The current study assessed the effect of rapeseed variety and oil extraction process on the apparent and standardised ileal digestibility (AID, SID) of crude protein (CP) and amino acids (AA) in rapeseed co-products in broiler chickens. PR46W21 and DK Cabernet rapeseed varieties were de-oiled by soft and standard hexane extraction, producing soft rapeseed meal (SRSM) and rapeseed meal (RSM), respectively. The soft, non-standard hexane extraction method was designed to reduce heat treatment that occurs prior to hexane extraction in order to maximise potential genetic differences in digestibility values of rapeseed co-products. The test meals were incorporated into semi-synthetic diets at a level of 500 g/kg; diets were fed to 14-day old paired chickens (n = 6 pairs) for ten days, when ileal digesta was collected post-slaughter from Meckel’s diverticulum to the ileal-caecal junction. The AID and SID of CP and AA were determined using titanium dioxide as inert dietary marker. The variety PR46W21 showed a greater AID and SID of CP, arginine, leucine, methionine, cysteine, phenylalanine, valine and lysine in RSM compared to the DK Cabernet RSM (p < 0.05). The soft processing increased AID and SID of CP, histidine and lysine in SRSM of PR46W21 and DK Cabernet compared to their RSM counterparts (p < 0.05). An interaction between variety and processing was only observed for AID and SID of tryptophan (p < 0.001), as only in PR46W21 standard processing reduced the tryptophan SID compared to its soft processed counterpart. The data support the view that the selection of rapeseed variety and modification of thermal treatment during the oil extraction might improve nutritional value of rapeseed meals.
format	Article
author	Kasprzak, M.M. Houdijk, J.G.M. Olukosi, O.A. Appleyard, H. Kightley, S.P.J. Carre, P. Wiseman, J.
spellingShingle	Kasprzak, M.M. Houdijk, J.G.M. Olukosi, O.A. Appleyard, H. Kightley, S.P.J. Carre, P. Wiseman, J. The influence of oil extraction process of different rapeseed varieties on the ileal digestibility of crude protein and amino acids in broiler chickens
author_facet	Kasprzak, M.M. Houdijk, J.G.M. Olukosi, O.A. Appleyard, H. Kightley, S.P.J. Carre, P. Wiseman, J.
author_sort	Kasprzak, M.M.
title	The influence of oil extraction process of different rapeseed varieties on the ileal digestibility of crude protein and amino acids in broiler chickens
title_short	The influence of oil extraction process of different rapeseed varieties on the ileal digestibility of crude protein and amino acids in broiler chickens
title_full	The influence of oil extraction process of different rapeseed varieties on the ileal digestibility of crude protein and amino acids in broiler chickens
title_fullStr	The influence of oil extraction process of different rapeseed varieties on the ileal digestibility of crude protein and amino acids in broiler chickens
title_full_unstemmed	The influence of oil extraction process of different rapeseed varieties on the ileal digestibility of crude protein and amino acids in broiler chickens
title_sort	influence of oil extraction process of different rapeseed varieties on the ileal digestibility of crude protein and amino acids in broiler chickens
publisher	Elsevier Masson
publishDate	2017
url	http://eprints.nottingham.ac.uk/44227/ http://eprints.nottingham.ac.uk/44227/ http://eprints.nottingham.ac.uk/44227/ http://eprints.nottingham.ac.uk/44227/1/Paper%207.pdf
first_indexed	2018-09-06T13:32:01Z
last_indexed	2018-09-06T13:32:01Z
_version_	1610865151349620736

The influence of oil extraction process of different rapeseed varieties on the ileal digestibility of crude protein and amino acids in broiler chickens

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