Evaluation of the feed value for ruminants of newly developed black and yellow type of canola seeds
plant breeders in 1970’s. Canola includes the yellow (CS_Y) and the black-seeded (CS_B) varieties; whereas hulls from yellow-seeded have been noted to be lower in fiber and higher in oil and protein content than those from black-seeded types. The aim of this study was to study the variety effect and evaluate the nutritive value, for ruminants, of the yellow and black-seeded canola (B. napus). The items assessed are 1) chemical and nutrient profiles, 2) energy value, 3) rumen CS_Y was lower in NDF and ADF. The crude protein and the feed milk value were not different between the two canola seed varieties. No significant differences for the CT content were observed among the feedstuffs while the total polyphenols were higher for the yellow-seeded. The crude protein degradability of CS_Y was not different from that of the CS_B while the highest NDF degradability fund for the CS_Y. The energy values of the yellow-seeded canola were higher compared to the black-seeded canola.
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