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Increasing sustainability in pork production by using high inclusion levels of co-products DDGS, wheat middling and canola meal doesn't affect pig growth performance and meat quality but reduce boar taint

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posted on 2023-07-31, 21:37 authored by Thanh Nguyen, Shola Olumodeji, Kirsty Chidgey, Timothy Wester, Carolina Realini CujoCarolina Realini Cujo, Patrick Morel

Objective
The present study is to examine the effect of high inclusion of co-products in pig diets (referred to as an alternative diet) during the finishing stage on pig growth performance, meat quality and boar taint compounds.
Methods
Growing pigs were fed an alternative diet made with distillers dried grains with solubles (25%), canola meal (20%), and wheat middling (15%) or a control diet based on barley and soybean meal to investigate the impact of co-products on pig performance and meat quality. Sixteen female and sixteen entire male Duroc×(Large White×Landrace) pigs (22.6±2.07 kg, body weight±standard error) were equally allocated to the diets.
Results
Pigs fed the alternative diet had a lower feed intake; however, growth rate and feed conversion efficiency were unaffected by diet. A diet by sex interaction was found for gain:feed whereby males fed the alternative diet had the best feed conversion (p<0.01). Pork from pigs fed the alternative diet had lower a* and Chroma and protein % (p<0.05), while other meat quality characteristics were unaffected. The alternative diet reduced backfat skatole levels (p<0.001).
Conclusion
A diet containing high inclusion levels of co-products can be fed to pigs during the finishing stage without detrimental effects on pig performance or meat quality and with the potential to enhance pork flavour. This finding suggests a solution to increase the sustainable development of pig production.

Funding

Ministry for Primary Industries Sustainable Food and Fibre Futures

History

Rights statement

© 2023 by Animal Bioscience. This is an open-access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Publication date

2023-02-27

Project number

  • Non revenue

Language

  • English

Does this contain Māori information or data?

  • No

Publisher

Asian-Australasian Association of Animal Production Societies (AAAP)

Journal title

Animal Bioscience

ISSN

2765-0235

Volume/issue number

36(7)

Page numbers

1091-1100

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