Abstract
In order to better utilize the last cut alfalfa harvested before killing frost in a high moisture environment, the effects of chemical additives on the quality of alfalfa silage were studied in south of China. The alfalfa was freshly harvested at branching stage, and wilted by dry matter content of about 300 g/kg (fresh matter basis). Silage was prepared by using a small-scale silage fermentation system, where sucrose, potassium citrate, sodium carbonate, formic acid, acetic acid and propionic acid were used as silage additives, and no additives served as control. These silos were stored at ambient temperature (5-20°C), and the silage qualities were analyzed after 120 days of fermentation. All additive treatments affected the chemical composition and N distribution, increased the water-soluble content and crude protein contents, decreased non-protein nitrogen (NPN) content, and enhanced the in vitro ruminal dry matter digestibility (except for sodium carbonate). Silages treated with organic acids were preserved with significantly (P < 0.05) lower pH value, ethanol content and NPN content compared with control. When the fermentation quality, chemical composition and N distribution were considered, the treatment with sucrose or organic acids resulted in high quality of alfalfa silage ensiled before killing frost, with formic acid having the best effect.
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Claims 6
Claim · model-written summary
All additive treatments increased water-soluble content and crude protein in alfalfa silage.
- Taxon
- alfalfa
Medicago sativat0 - Treatment
- All additive treatmentse0
- Outcome
- water-soluble content and crude protein contentse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“All additive treatments affected the chemical composition and N distribution, increased the water-soluble content and crude protein contents, decreased non-protein nitrogen (NPN) content, and enhanced the in vitro ruminal dry matter digestibility (except for sodium carbonate).”
t0“alfalfa silage”
Claim · model-written summary
All additives reduced non-protein nitrogen in alfalfa silage.
- Taxon
- alfalfaMedicago sativat0
- Treatment
- All additive treatmentse0
- Outcome
- non-protein nitrogen (NPN) contente0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“All additive treatments affected the chemical composition and N distribution, increased the water-soluble content and crude protein contents, decreased non-protein nitrogen (NPN) content, and enhanced the in vitro ruminal dry matter digestibility (except for sodium carbonate).”
t0“alfalfa silage”
Claim · model-written summary
Additives other than sodium carbonate enhanced in vitro ruminal dry matter digestibility of alfalfa silage.
- Taxon
- alfalfaMedicago sativat0
- Treatment
- All additive treatmentse0
- Outcome
- in vitro ruminal dry matter digestibilitye0
- Direction
- enhancede0
- Qualifier
- except for sodium carbonatee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“All additive treatments affected the chemical composition and N distribution, increased the water-soluble content and crude protein contents, decreased non-protein nitrogen (NPN) content, and enhanced the in vitro ruminal dry matter digestibility (except for sodium carbonate).”
t0“alfalfa silage”
Claim · model-written summary
Organic acid treatments significantly reduced pH, ethanol and non-protein nitrogen relative to control.
- Taxon
- alfalfaMedicago sativat0
- Treatment
- organic acidse0
- Outcome
- pH value, ethanol content and NPN contente0
- Direction
- lowere0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Silages treated with organic acids were preserved with significantly (P < 0.05) lower pH value, ethanol content and NPN content compared with control.”
t0“alfalfa silage”
Claim · model-written summary
Sucrose or organic acids produced high-quality alfalfa silage before killing frost.
- Taxon
- alfalfaMedicago sativat0
- Treatment
- sucrose or organic acidse0
- Outcome
- quality of alfalfa silagee0
- Direction
- highe0
- Qualifier
- before killing froste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the treatment with sucrose or organic acids resulted in high quality of alfalfa silage ensiled before killing frost, with formic acid having the best effect.”
t0“alfalfa silage”
Claim · model-written summary
Formic acid had the best effect on alfalfa silage quality among treatments considered.
- Taxon
- alfalfaMedicago sativat0
- Treatment
- formic acide0
- Outcome
- best effecte0
- Direction
- best effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“with formic acid having the best effect.”
t0“alfalfa silage”
The same questions in other papers
sucrose · quality: general · Medicago sativa (alfalfa)Positive and negative results
4 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
2 papers more in this group
See all 6 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.