Abstract
This study investigated the effects of the rumen fungus Piromyces sp. CN6 CGMCC 14449 as a silage additive on the fermentation quality, nutrient composition and in vitro digestibility of whole crop maize silage. Whole crop maize served as the silage material and was vacuum packed in polyethylene bags. Three ensiling treatments were applied: a control (CK), addition of a fungus (FU) at 105 thallus-forming units per gram, and addition of compound enzyme (EN) at 0.033 mg/g (containing cellulase and xylanase at activities of 90 filter paper units and 6000 IU per gram, respectively). Compared with the CK, the FU and EN treatments decreased the pH after 30 days fermentation (P <0.05). Both FU and EN treatments increased the lactate, crude protein, and water-soluble carbohydrate contents (P <0.05), whereas reduced the acetate, ADF and NDF contents as well as the ammonia nitrogen to total nitrogen ratio in silage after 30 days of ensilaging (P <0.05), compared with those for the CK, while no changes were found in the dry matter and dry matter recovery (P > 0.05). The fungal inoculant increased the in vitro digestibility of dry matter, NDF and ADF in silage after 30 days fermentation (P <0.05). In conclusion, the rumen fungus Piromyces sp. CN6 CGMCC 14449 can improve the quality and nutrient composition of whole crop maize silage and increase the crude fibre digestibility.
| Original language | English |
|---|---|
| Article number | 121 |
| Number of pages | 8 |
| Journal | AMB Express |
| Volume | 9 |
| DOIs | |
| Publication status | Published - 29 Jul 2019 |
Cite this
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Effects of Piromyces sp. CN6 CGMCC 14449 on fermentation quality, nutrient composition and the in vitro degradation rate of whole crop maize silage. / Wang, Dangdang; Zhao, Congcong; Liu, Shimin; Zhang, Tao; Yao, Junhu; Cao, Yangchun.
In: AMB Express, Vol. 9, 121, 29.07.2019.Research output: Contribution to journal › Article
TY - JOUR
T1 - Effects of Piromyces sp. CN6 CGMCC 14449 on fermentation quality, nutrient composition and the in vitro degradation rate of whole crop maize silage
AU - Wang, Dangdang
AU - Zhao, Congcong
AU - Liu, Shimin
AU - Zhang, Tao
AU - Yao, Junhu
AU - Cao, Yangchun
PY - 2019/7/29
Y1 - 2019/7/29
N2 - This study investigated the effects of the rumen fungus Piromyces sp. CN6 CGMCC 14449 as a silage additive on the fermentation quality, nutrient composition and in vitro digestibility of whole crop maize silage. Whole crop maize served as the silage material and was vacuum packed in polyethylene bags. Three ensiling treatments were applied: a control (CK), addition of a fungus (FU) at 105 thallus-forming units per gram, and addition of compound enzyme (EN) at 0.033 mg/g (containing cellulase and xylanase at activities of 90 filter paper units and 6000 IU per gram, respectively). Compared with the CK, the FU and EN treatments decreased the pH after 30 days fermentation (P <0.05). Both FU and EN treatments increased the lactate, crude protein, and water-soluble carbohydrate contents (P <0.05), whereas reduced the acetate, ADF and NDF contents as well as the ammonia nitrogen to total nitrogen ratio in silage after 30 days of ensilaging (P <0.05), compared with those for the CK, while no changes were found in the dry matter and dry matter recovery (P > 0.05). The fungal inoculant increased the in vitro digestibility of dry matter, NDF and ADF in silage after 30 days fermentation (P <0.05). In conclusion, the rumen fungus Piromyces sp. CN6 CGMCC 14449 can improve the quality and nutrient composition of whole crop maize silage and increase the crude fibre digestibility.
AB - This study investigated the effects of the rumen fungus Piromyces sp. CN6 CGMCC 14449 as a silage additive on the fermentation quality, nutrient composition and in vitro digestibility of whole crop maize silage. Whole crop maize served as the silage material and was vacuum packed in polyethylene bags. Three ensiling treatments were applied: a control (CK), addition of a fungus (FU) at 105 thallus-forming units per gram, and addition of compound enzyme (EN) at 0.033 mg/g (containing cellulase and xylanase at activities of 90 filter paper units and 6000 IU per gram, respectively). Compared with the CK, the FU and EN treatments decreased the pH after 30 days fermentation (P <0.05). Both FU and EN treatments increased the lactate, crude protein, and water-soluble carbohydrate contents (P <0.05), whereas reduced the acetate, ADF and NDF contents as well as the ammonia nitrogen to total nitrogen ratio in silage after 30 days of ensilaging (P <0.05), compared with those for the CK, while no changes were found in the dry matter and dry matter recovery (P > 0.05). The fungal inoculant increased the in vitro digestibility of dry matter, NDF and ADF in silage after 30 days fermentation (P <0.05). In conclusion, the rumen fungus Piromyces sp. CN6 CGMCC 14449 can improve the quality and nutrient composition of whole crop maize silage and increase the crude fibre digestibility.
KW - Crop straw
KW - Maize silage
KW - Anaerobic fungi
KW - Piromyces Spp
KW - Fibre degradation
KW - Enzymes
KW - AEROBIC STABILITY
KW - LACTOBACILLUS-BUCHNERI
KW - NUTRITIVE-VALUE
KW - RUMEN FUNGI
KW - ANAEROBIC FUNGI
KW - FIBROLYTIC ENZYMES
KW - WHEAT-STRAW
KW - CORN
KW - DIGESTIBILITY
KW - INOCULATION
U2 - 10.1186/s13568-019-0846-x
DO - 10.1186/s13568-019-0846-x
M3 - Article
VL - 9
JO - AMB Express
JF - AMB Express
SN - 2191-0855
M1 - 121
ER -