Abstract
Corn silage digestibility studies have focussed on genetically distant corn types. Conversely, silage additive studies monitored fermentation differences without discussing the subject of hybrid digestibility. How ensiling phases and additives affect silage quality in commercial corn hybrids has not been properly examined yet. As corn silage quality is a result of combined silage fermentation and digestibility characteristics, the aim of the study was to examine fermentation and digestibility responses to inoculant application in whole-plant corn silage of commercial hybrids intended for silage production in several time points during ensiling. Three corn hybrids grown under identical conditions in a split-plot field test were ensiled without inoculant application and with inoculant containing lactic acid bacteria and carbohydrate-degrading enzymes. Silages were sampled before ensiling, at the peak of the fermentation phase and during the stable phase. The fermentation profile, carbohydrate fraction, ruminal in vitro true dry matter digestibility, ruminal in vitro starch digestibility, and ruminal in vitro neutral detergent fibre digestibility were monitored. Although adding inoculant to silage improved its lactic acid production and decrease in pH, it did not affect its starch and fibre contents or their digestibility. Digestibility improved as ensiling continued, with the highest in vitro neutral detergent fibre digestibility and in vitro true dry matter digestibility values observed in the stable phase. Corn hybrids in this study differed in main fermentation characteristics, carbohydrate contents, and digestibility. These results suggest that even for commercial corn hybrids, the hybrid type is more important than inoculant for optimising silage characteristics and digestibility.
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Claims 8
Claim · model-written summary
Inoculant application improved lactic acid production in corn silage.
- Taxon
- corn
Zea mays subsp. mayst0 - Treatment
- adding inoculant to silagee0
- Outcome
- lactic acid productione0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Although adding inoculant to silage improved its lactic acid production and decrease in pH, it did not affect its starch and fibre contents or their digestibility.”
t0“corn”
Claim · model-written summary
Inoculant application improved decrease in pH in corn silage.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- adding inoculant to silagee0
- Outcome
- decrease in pHe0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Although adding inoculant to silage improved its lactic acid production and decrease in pH, it did not affect its starch and fibre contents or their digestibility.”
t0“corn”
Claim · model-written summary
Inoculant application did not affect starch and fibre contents in corn silage.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- adding inoculant to silagee0
- Outcome
- starch and fibre contentse0
- Direction
- did not affecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Although adding inoculant to silage improved its lactic acid production and decrease in pH, it did not affect its starch and fibre contents or their digestibility.”
t0“corn”
Claim · model-written summary
Inoculant application did not affect their digestibility in corn silage.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- adding inoculant to silagee0
- Outcome
- their digestibilitye0
- Direction
- did not affecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Although adding inoculant to silage improved its lactic acid production and decrease in pH, it did not affect its starch and fibre contents or their digestibility.”
t0“corn”
Claim · model-written summary
Digestibility improved with ensiling duration.
- Taxon
- cornZea mays subsp. mayst0
- Outcome
- Digestibilitye0
- Direction
- improvede0
- Setting
- stable phasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Digestibility improved as ensiling continued, with the highest in vitro neutral detergent fibre digestibility and in vitro true dry matter digestibility values observed in the stable phase.”
t0“corn”
Claim · model-written summary
Neutral detergent fibre and true dry matter digestibility were highest in the stable phase.
- Taxon
- cornZea mays subsp. mayst0
- Outcome
- in vitro neutral detergent fibre digestibility and in vitro true dry matter digestibilitye0
- Direction
- higheste0
- Setting
- stable phasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Digestibility improved as ensiling continued, with the highest in vitro neutral detergent fibre digestibility and in vitro true dry matter digestibility values observed in the stable phase.”
t0“corn”
Claim · model-written summary
Corn hybrids differed in fermentation characteristics, carbohydrate content and digestibility.
- Taxon
- CornZea mays subsp. mayse0
- Outcome
- main fermentation characteristics, carbohydrate contents, and digestibilitye0
- Direction
- differede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Corn hybrids in this study differed in main fermentation characteristics, carbohydrate contents, and digestibility.”
Claim · model-written summary
Hybrid type is more important than inoculant for optimizing corn silage characteristics and digestibility.
- Taxon
- cornZea mays subsp. mayse0
- Outcome
- hybrid type is more important than inoculant for optimising silage characteristics and digestibilitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“These results suggest that even for commercial corn hybrids, the hybrid type is more important than inoculant for optimising silage characteristics and digestibility.”
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