Table 7. Effects of persimmon peel or damaged whole persimmons, compared to various types of silages, on volatile fatty acid concentrations during in vitro rumen fermentation.
Treatments1) | SEM | p-value | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
PP3R7 | PP5R5 | PP7R3 | PP8R2 | WP3R7 | WP5R5 | WP7R3 | MS | RS | RGS | WCRS | |||
Total volatile fatty acids (VFA) (mM) | |||||||||||||
6 h | 27.36 | 27.89 | 27.63 | 29.78 | 26.64 | 28.06 | 28.59 | 28.8 | 27.58 | 28.06 | 27.58 | 0.573 | 0.070 |
24 h | 49.28a | 52.80b | 57.10c | 63.0ef | 48.14a | 53.46b | 57.58cd | 65.36f | 47.65a | 60.27de | 59.2cd | 0.944 | < 0.001 |
Acetate (%) | |||||||||||||
6 h | 70.58b | 70.99bc | 70.96bc | 71.92e | 70.70b | 70.02a | 70.07a | 70.06a | 71.75e | 71.21c | 73.02f | 0.145 | < 0.001 |
24 h | 67.4ef | 65.78d | 62.29b | 59.62a | 67.18e | 64.83c | 61.73b | 64.20c | 68.92g | 68.03fg | 70.96h | 0.253 | < 0.001 |
Propionate (%) | |||||||||||||
6 h | 16.19bc | 16.17bc | 16.53cd | 16.07bc | 15.87b | 16.77de | 16.56cd | 17.12e | 15.01a | 16.02b | 15.24a | 0.152 | < 0.001 |
24 h | 20.11b | 21.83c | 26.11e | 29.13f | 20.26b | 22.69c | 26.43e | 24.78d | 18.41a | 20.17b | 20.39b | 0.317 | < 0.001 |
Butyrate (%) | |||||||||||||
6 h | 10.70ef | 10.57de | 10.42d | 10.13c | 10.89f | 10.92f | 11.22g | 10.06c | 10.77ef | 9.75b | 9.11a | 0.071 | < 0.001 |
24 h | 10.29f | 10.15f | 9.56de | 9.28d | 10.25f | 10.29f | 9.73e | 8.84c | 10.46f | 8.38b | 6.46a | 0.104 | < 0.001 |
Valerate (%) | |||||||||||||
6 h | 0.79ef | 0.70bc | 0.66b | 0.59a | 0.76cde | 0.70bc | 0.65ab | 0.84f | 0.76de | 0.92g | 0.82ef | 0.020 | < 0.001 |
24 h | 0.77de | 0.76d | 0.62b | 0.55a | 0.77de | 0.75d | 0.66bc | 0.81de | 0.70c | 1.41f | 0.82e | 0.018 | < 0.001 |
Acetate:Propionate ratio | |||||||||||||
6 h | 4.36cde | 4.39de | 4.29bcd | 4.48e | 4.46e | 4.18ab | 4.23abc | 4.09a | 4.78f | 4.45de | 4.79f | 0.048 | < 0.001 |
24 h | 3.35fg | 3.02e | 2.39b | 2.05a | 3.32f | 2.86d | 2.34b | 2.59c | 3.74h | 3.37fg | 3.48g | 0.047 | < 0.001 |
PP3R7, PP5R5, PP7R3, and PP8R2, persimmon peel mixed with rice straw at ratios of 3:7, 5: 5, 7:3 and 8:2, respectively; WP3R7, WP5R5, WP7R3, damaged whole persimmon mixed with rice straw at ratios of 3:7, 5: 5, and 7:3, respectively.
Mean values with different superscripts within a row differ significantly (p < 0.05).
PP, persimmon peel; WP, damaged-whole persimmon; MS: maize silage, RS, rice straw silage, WCRS, whole crop rye silage, SSGS, sorghum-sudangrass silage.