This experiment was conducted to investigate the combination effects of wheat straw (WS) and non-conventional feeds. Combinations of WS with spouting corn bran (SCB), soybean hulls (SH), orange peel (OP) and apple pomace (AP) were mixed in the proportion of 0: 100, 25: 75, 50: 50, 75: 25 and 100: 0, respectively, and rumen fermentation in vitro was adopted to evaluate combination effects by analysis of total volatile fatty acids (TVFA) concentration, dry matter degradation rate (DMD), neutral detergent fiber degradation rate (NDFD) and acid detergent fiber degradation rate (ADFD) after 48 h. The results showed as follows: 1) in the combinations of WS with SCB, SH, OP and AP, when the proportion of WS was 25%, the TVFA concentration was higher than that of the WS proportions of 50%, 75% and 100%. 2) With the increasing of the proportion of WS, the DMD of combinations of WS with SCB, SH, OP and AP gradually decreased; the DMD of combinations of WS with SCB and SH had significant difference in each proportion (P<0.05). 3)With the increasing of the proportion of WS, the NDFD and ADFD of combinations of WS with SCB and SH gradually decreased, and had significant difference in each proportion (P<0.05). In the combination of WS with OP, the NDFD and ADFD were the highest when the proportion of WS was 50%. 4) In the combinations of WS with OP and AP, when the proportion of WS was 50%, the combination effect values of NDFD and ADFD were the highest, which was significantly higher than the other proportions (P<0.05); in the combination of WS with SCB, when the proportion of WS was 75%, the combination effect values of NDFD and ADFD were the highest, which were significantly higher than the other proportions (P<0.05). It is concluded that the combinations of WS with SH and SCB in proportion of 75: 25, and the combinationsof WS with AP and OP in proportion of 50: 50 have the best combination e effects in this experiment.
MENG Meijuan
,
TU Yunlu
,
BAI Yunfeng
,
YAN Shaohua
,
GAO Lipeng
,
LIU Ping
,
LIU Jian
. Combination Effects on Wheat Straw and Non-Conventional Feeds[J]. Chinese Journal of Animal Nutrition, 2016
, 28(9)
: 3005
-3014
.
DOI: 10.3969/j.issn.1006-267x.2016.09.041
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