PMID- 31480164
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20200928
IS  - 1011-2367 (Print)
IS  - 1976-5517 (Electronic)
IS  - 1011-2367 (Linking)
VI  - 33
IP  - 4
DP  - 2020 Apr
TI  - Dynamic changes and characterization of the protein and carbohydrate fractions of 
      native grass grown in Inner Mongolia during ensiling and the aerobic stage.
PG  - 556-567
LID - 10.5713/ajas.19.0212 [doi]
AB  - OBJECTIVE: To improve the utility of native grass resources as feed in China, we 
      investigated the dynamics of protein and carbohydrate fractions among Inner 
      Mongolian native grasses, during ensiling and the aerobic stage, using the 
      Cornell Net Carbohydrate and Protein System. METHODS: Silages were prepared 
      without or with lactic acid bacteria (LAB) inoculant. We analyzed the protein and 
      carbohydrate fractions and fermentation quality of silages at 0, 5, 15, 20, 30, 
      and 60 d of ensiling, and the stability at 0.5, 2, 5, and 10 d during the aerobic 
      stage. RESULTS: Inner Mongolian native grass contained 10.8% crude protein (CP) 
      and 3.6% water-soluble carbohydrates (WSC) on a dry matter basis. During 
      ensiling, pH and CP and WSC content decreased (p<0.05), whereas lactic acid and 
      ammonia nitrogen (N) content increased (p<0.05). Non-protein N (PA) content 
      increased significantly, whereas rapidly degraded true protein (PB1), 
      intermediately degraded true protein (PB2), total carbohydrate (CHO), sugars 
      (CA), starch (CB1), and degradable cell wall carbohydrate (CB2) content decreased 
      during ensiling (p<0.05). At 30 d of ensiling, control and LAB-treated silages 
      were well preserved and had lower pH (<4.2) and ammonia-N content (<0.4 g/kg of 
      fresh matter [FM]) and higher lactic acid content (>1.0% of FM). During the 
      aerobic stage, CP, extract ether, WSC, lactic acid, acetic acid, PB1, PB2, true 
      protein degraded slowly (PB3), CHO, CA, CB1, and CB2 content decreased 
      significantly in all silages, whereas pH, ammonia-N, PA, and bound true protein 
      (PC) content increased significantly. CONCLUSION: Control and LAB-treated silages 
      produced similar results in terms of fermentation quality, aerobic stability, and 
      protein and carbohydrate fractions. Inner Mongolian native grass produced good 
      silage, nutrients were preserved during ensiling and protein and carbohydrate 
      losses largely occurred during the aerobic stage.
FAU - Du, Zhumei
AU  - Du Z
AD  - Key Laboratory of Forage Cultivation, Processing and High Efficient Utilization 
      of Ministry of Agriculture, Key Laboratory of Grassland Resources, Ministry of 
      Education, P. R. of China, College of Grassland, Resources and Environment, Inner 
      Mongolia Agricultural University, Hohhot 010019, China.
FAU - Risu, Na
AU  - Risu N
AD  - The Center of Ecology and Agrometeorology of Inner Mongolia, Hohhot 010019, 
      China.
FAU - Gentu, Ge
AU  - Gentu G
AD  - Key Laboratory of Forage Cultivation, Processing and High Efficient Utilization 
      of Ministry of Agriculture, Key Laboratory of Grassland Resources, Ministry of 
      Education, P. R. of China, College of Grassland, Resources and Environment, Inner 
      Mongolia Agricultural University, Hohhot 010019, China.
FAU - Jia, Yushan
AU  - Jia Y
AD  - Key Laboratory of Forage Cultivation, Processing and High Efficient Utilization 
      of Ministry of Agriculture, Key Laboratory of Grassland Resources, Ministry of 
      Education, P. R. of China, College of Grassland, Resources and Environment, Inner 
      Mongolia Agricultural University, Hohhot 010019, China.
FAU - Cai, Yimin
AU  - Cai Y
AD  - Japan International Research Center for Agricultural Sciences (JIRCAS), Tsukuba, 
      Ibaraki 305-8686, Japan.
LA  - eng
GR  - 2016YFC0500504/National Natural Science Foundation of China/
GR  - 31460638/Ministry of Science and Technology, China/
PT  - Journal Article
DEP - 20190803
PL  - Korea (South)
TA  - Asian-Australas J Anim Sci
JT  - Asian-Australasian journal of animal sciences
JID - 9884245
PMC - PMC7054601
OTO - NOTNLM
OT  - Aerobic Stability
OT  - Cornell Net Carbohydrate and Protein System
OT  - Inner Mongolian Native Grass
OT  - Silage Fermentation
COIS- CONFLICT OF INTEREST We certify that there is no conflict of interest with any 
      financial organization regarding the material discussed in the manuscript.
EDAT- 2019/09/05 06:00
MHDA- 2019/09/05 06:01
PMCR- 2020/04/01
CRDT- 2019/09/04 06:00
PHST- 2019/03/15 00:00 [received]
PHST- 2019/07/12 00:00 [accepted]
PHST- 2019/09/05 06:00 [pubmed]
PHST- 2019/09/05 06:01 [medline]
PHST- 2019/09/04 06:00 [entrez]
PHST- 2020/04/01 00:00 [pmc-release]
AID - ajas.19.0212 [pii]
AID - ajas-19-0212 [pii]
AID - 10.5713/ajas.19.0212 [doi]
PST - ppublish
SO  - Asian-Australas J Anim Sci. 2020 Apr;33(4):556-567. doi: 10.5713/ajas.19.0212. 
      Epub 2019 Aug 3.