Table 5.
Correlation coefficients (r) between individual and total glucosinolate concentrations (mg/g DM) and daily CH4 production (mg/d) of fermentors fed annual ryegrass, canola, rapeseed, or turnip with orchardgrass
| Glucosinolate* | r | P value |
|---|---|---|
| Glucobrassicanapin | −0.523 | 0.038 |
| Sinigrin | −0.643 | 0.007 |
| Glucobrassicin | −0.732 | 0.001 |
| Glucoerucin | −0.333 | 0.207 |
| Gluconapin | −0.509 | 0.044 |
| Gluconasturtiin | −0.456 | 0.076 |
| Glucoraphanin | −0.670 | 0.005 |
| Glucoraphenin | −0.787 | <0.001 |
| Progoitrin | −0.593 | 0.015 |
| Total | −0.567 | 0.022 |
*No correlation was tested between daily CH4 production and sinalbin, glucohlearin, glucoiberin, or glucoibeverin due to lack of measurable concentrations in any forage analyzed.