Table 2.
Total and individual glucosinolate concentrations (mg/g DM) of individual forages and diets fed during continuous culture fermentation
| Glucosinolate† | Ingredient | Diet* | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Annual Ryegrass | Canola | Rapeseed | Turnip | Orchardgrass | ARG | CAN | RAP | TUR | |
| Glucobrassicanapin | 0.00 | 5.72 | 5.13 | 17.29 | 0.00 | 0.00 | 2.86 | 2.57 | 8.65 |
| Progoitrin | 0.00 | 3.04 | 9.66 | 15.26 | 0.00 | 0.00 | 1.52 | 4.83 | 7.63 |
| Gluconapin | 0.00 | 1.00 | 1.42 | 4.15 | 0.00 | 0.00 | 0.50 | 0.71 | 2.08 |
| Glucobrassicin | 0.00 | 0.95 | 1.25 | 1.96 | 0.00 | 0.00 | 0.48 | 0.63 | 0.98 |
| Gluconasturtiin | 0.00 | 0.68 | 1.16 | 3.95 | 0.00 | 0.00 | 0.34 | 0.58 | 1.98 |
| Glucoraphanin | 0.00 | 0.16 | 0.63 | 0.42 | 0.00 | 0.00 | 0.08 | 0.32 | 0.21 |
| Glucoerucin | 0.00 | 0.01 | 0.05 | 0.41 | 0.00 | 0.00 | 0.01 | 0.03 | 0.21 |
| Sinigrin | 0.00 | 0.08 | 0.23 | 0.31 | 0.00 | 0.00 | 0.04 | 0.12 | 0.16 |
| Glucoraphenin | 0.00 | 0.04 | 0.04 | 0.05 | 0.00 | 0.00 | 0.02 | 0.02 | 0.03 |
| Total | 0.00 | 11.68 | 19.51 | 43.80 | 0.00 | 0.00 | 5.84 | 9.76 | 21.90 |
*Diets calculated using actual nutrient composition and proportion of individual forages (DM basis); ARG = 50% orchardgrass + 50% annual ryegrass; CAN = 50% orchardgrass + 50% canola; RAP = 50% orchardgrass + 50% rapeseed; TUR = 50% orchardgrass + 50% turnip.
†No detectable levels of gluoiberin, glucoiberverin, gluochlearin, or sinalbin were found in any of the forages or diets tested.