Please use this identifier to cite or link to this item: https://une.intersearch.com.au/unejspui/handle/1959.11/2705
Title: The effect of dietary treatment on meat quality and on consumer perception of sheep meat eating quality
Contributor(s): Pethick, D W (author); Davidson, R (author); Hopkins, D L (author); Jacob, R H (author); D'Souza, D N (author); Thompson, John Mitchell (author); Walker, P J (author)
Publication Date: 2005
DOI: 10.1071/EA03255
Handle Link: https://hdl.handle.net/1959.11/2705
Abstract: The aim of this experiment was to test the effects of dietary treatment on sheep meat eating quality as perceived by untrained Australian consumers. Six-month-old Suffolk × Merino lambs (n = 192) were allocated to 1 of 4 nutritional treatments for 60–77 days and were fed: (i) an irrigated perennial ryegrass–clover–kikuyu sward; (ii) irrigated perennial ryegrass–clover–kikuyu pasture for 48–61 days then poor quality straw for the last 12–16 days; (iii) a mixed ration treatment consisting of a high-energy pelleted diet (40% barley grain, 30% wheat grain, 15% hay and 12% lupin grain); or (iv) irrigated pasture for 37–51 days followed by a moderate-energy pelleted diet (36% wheat grain, 35% hay and 24.5% lupin grain) for 23–26 days. The starting liveweight of lambs was 31.5–35.5 kg and the final hot carcass weight was 19–20 kg. The nutritional treatment finishing system employing straw feeding for the last 12–16 days was associated with a loss of liveweight during this period, a decreased tissue depth at the GR site and a decreased content of intramuscular fat and glycogen in muscle. Untrained Australian consumers were asked to rate samples (scale 0–100) of the 'M. longissimus thoracis et lumborum' (LL) from lambs for tenderness, liking of flavour, juiciness and overall liking and then classify the meat as unsatisfactory, good everyday or better than everyday. Straw feeding was also associated with significantly reduced consumer scores for juiciness (P<0.05) and liking of flavour (P<0.10) with no changes in tenderness and overall liking. There was no significant difference in the consumer acceptance of the LL obtained from lambs finished on pasture v. grain-based diets. It is concluded that nutritional finishing systems should be selected to prevent animals from losing weight pre-slaughter and that decisions on pasture v. grain based feeding systems be based on the cost of production.
Publication Type: Journal Article
Source of Publication: Australian Journal of Experimental Agriculture, 45(5), p. 517-524
Publisher: CSIRO Publishing
Place of Publication: Collingwood, Victoria, Australia
ISSN: 0816-1089
Field of Research (FOR): 070203 Animal Management
Peer Reviewed: Yes
HERDC Category Description: C1 Refereed Article in a Scholarly Journal
Other Links: http://nla.gov.au/anbd.bib-an4599774
Statistics to Oct 2018: Visitors: 297
Views: 297
Downloads: 0
Appears in Collections:Journal Article

Files in This Item:
2 files
File Description SizeFormat 
Show full item record

SCOPUSTM   
Citations

27
checked on Nov 26, 2018

Page view(s)

86
checked on Mar 3, 2019
Google Media

Google ScholarTM

Check

Altmetric

SCOPUSTM   
Citations

 

Items in Research UNE are protected by copyright, with all rights reserved, unless otherwise indicated.