Feed Ingredients: Nutrient composition of canola meal
Published: October 5, 2017
By: Fernando Diaz, DVM, PhD, Dairy Nutrition and Management Consultant. Diplomate ACANS.
A new study about the nutritive characteristics of canola meal from Canadian processing facilities has been published recently in the Animal Feed Science and Technology magazine (Adewole et al, 2016). The authors evaluated samples of canola meal collected from eleven canola processing facilities in Canada over 4 successive years (2011–2014). Overall, the contents of various components of canola meal in percentage of dry matter (DM) basis were:
- crude protein: 41.7% DM (range 40.2 - 42.9%)
- fat: 3.5% (2.6 - 4.3%)
- sucrose: 6.1% (5.7- 6.2%)
- neutral detergent fiber: 29.4% (26.9 - 36.9%)
- non-starch polysaccharides: 21.9% (20.7 - 22.8%)
- neutral detergent insoluble crude protein (NDICP): 5.4% (7.3 - 4.1%)
- lysine: 2.11% (2.00 - 2.29%)
- methionine: 0.69% (0.64 - 0.72%)
There were variations between processing facilities and years in the contents of protein, fiber, fat, sugars, oligosaccharides, NDICP, and lysine of canola meal produced in Canada. While variations in the protein content of the canola meal in this study was reported to be mainly due to variations in the protein content of the canola seed feedstock, variations between processing facilities and years in the content of fat could be a consequence of different processing practices among the processing facilities in terms of adding back any by-products of seed cleaning. In addition, there were variations in lysine content between processing facilities, whereas, other amino acids were similar between processing facilities.
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18 de octubre de 2017
Hi Fernando,
Another interesting post as usual.
The canola seed I have experience with has very low variation in CP content, so it's interesting that lysine in canola meal varies so much in your data. Also interesting that the other amino acids do not vary much, indicating the importance of a controlled process to minimize lysine damage.
Thank you,
Dave Albin
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Anderson International Corp
17 de octubre de 2017
Fernando;
Canola seed in Canada is processed under the 2 main extraction methods depending on the crushing capacity and market targets, one method is under mechanical pressing with extrusion assistance and chemical extraction using hexane as a solvent. Both methods produce high protein meals with different characteristics in terms of residual oil and crude protein content.
The crude protein content you mentioned at the beginning with a range of 40-43% on a dry matter basis sounds about right, however, the fat content range between 2.6-4.3% is not quite common on this industry. Meals mechanically extracted will have between 5-8% residual oil and solvent extracted meals will have 1% or less residual oil, as you can see there is no way to have a commercial meal with a 3% residual oil in average unless the process has been manipulated on purpose or the analyzed samples were mixed up before testing which obviously will reflect results that are not valid or realistic.
Thank you.
Enrique Diaz.
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27 de octubre de 2017
This is an interesting information on canola seed by products,but something still bothered me why different nutritional values for all the feedstuff I.e different tables for feed formation. Can you suggest/advice on this.Thanks.
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9 de octubre de 2017
Thanks for this. I hope studies can be extend to other type of poultry meal.
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