Table 4.
The effect of feeding glycerin on the total bacteria, Butyrivibrio fibrisolvens, Butyrivibrio proteoclasticus (previously called Clostridium proteoclasticum), and Selenomonas ruminantium in the DNA extract of rumen fluid from young bulls that were fed a high level of concentrate.
| DNA Copies/μL (log10) | Treatments 1 | Hours Post-Feeding | SEM 2 | p-Value | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 0 G | 20 G | 40 G | 80 G | 0 | 8 | Treatment (G) | Hour (T) | GxT | ||
| Total bacteria | 10.03 | 10.13 | 9.45 | 9.47 | 10.10 | 9.93 | 0.071 | 0.778 | 0.240 | 0.967 |
| Butyrivibrio fibrisolvens | 7.27 | 7.23 | 6.98 | 7.17 | 7.23 | 7.09 | 0.063 | 0.356 | 0.253 | 0.408 |
| Butyrivibrio proteoclasticus | 3.87 | 3.92 | 3.52 | 3.24 | 3.87 | 3.40 | 0.196 | 0.514 | 0.230 | 0.951 |
| Selenomonas ruminantium | 0.21 b | 1.24 b | 1.24 b | 2.53 a | 1.42 | 1.19 | 0.205 | 0.004 | 0.561 | 0.767 |
1 Concentrate without glycerin, with 20, 40 or 80 g of glycerin per kg of dry matter (0 G, 20 G, 40 G and 80 G, respectively). 2 SEM = standard error of the mean (n = 4 per treatment × 2 per post-feeding time). a,b Means in the same row with different superscripts are significantly different (p < 0.05).