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Digestible and Net Energy Content of Toasted and Non-Toasted Canola Meal

Digestible and Net Energy Content of Toasted and Non-Toasted Canola Meal

Canola meal (CM) is a valuable source of essential amino acids for pigs, although the digestibility of these nutrients is limited by both composition (high dietary fibre level) and processing (toasting). Its low energy value is probably the most limiting factor for its use in swine nutrition and is explained by the absence of digestible carbohydrates and oil and by the relatively high level of dietary fibre.  A breeding program has been initiated in Canada to develop canola seeds with lower fibre content. It is based on cultivars of Brassica napus and Brassica junceae carrying the yellow-seed colour genes.  “The digestible energy and net energy content of the black-seeded canola meal of Brassica napus was lower than the yellow-seeded canola meal of Brassuca napus and Brassica. junceae”  On the other hand, with the progress obtained in terms of levels of anti-nutritional factors in the seed, research scientists are wondering if the toasting process is still required. Non-toasted meals are yellow but toasting can have a negative impact
on the availability of the amino acids. The present project aimed at evaluating the digestible and net energy content
(DE and NE) of non-toasted and toasted canola meals obtained from yellow and black-seeded B. napus and yellow-seeded B. junceae.

Digestible and Net Energy Content of Toasted and Non-Toasted Canola Meal (View pdf)