Abstract
A late-maturing corn hybrid, Funk brand G4444, was planted in 2-ha plots at 60 000 plants per hectare (low density) and at 100 000 plants per hectare (high density). At harvest, the dry matter and ear contents were 24.2 and 34%, respectively, for the low-density treatment and 22.8 and 28%, respectively, for the high-density treatment. Two groups of 10 lactating cows were used to compare the nutritive value of the ensiled forages over a 10-wk feeding period. Silage dry matter intake, milk yield and milk fat content were 10.33 kg/day, 27.11 kg/day and 3.52% for the cows fed high-density silage compared to 11.79 kg/day, 31.88 kg/day and 2.91% for those fed the low-density silage. Feeding the low-density silage resulted in a decreased level of acetic acid in the rumen and an increased level of propionic acid. Blood hematocrit and plasma calcium levels were lower for cows fed the silage from the low-density planting. Dry matter digestibility of the complete ration was 72.5 and 71.8% for the high- and low-density plantings, respectively. It was concluded that an increased ear content of approximately 10 percentage units resulted in a corn silage which was consumed more readily, altered rumen fermentation and caused a decrease in milk fat content. Key words: Corn silage, lactating dairy cows, planting density
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Claims 12
Claim · model-written summary
High-density planting lowered ear content of the corn silage (28% versus 34%).
- Taxon
- corn
Zea mays subsp. mayst0 - Material
- Funk brand G4444e0
- Organ / stage
- eare1
- Treatment
- high-density treatmente1
- Outcome
- ear contentse1
- Direction
- lowerinferrede1
- Value
- 28%e1
- Qualifier
- 34%e1
- Comparator
- low-density treatmente1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“CORN SILAGE”
e0“A late-maturing corn hybrid, Funk brand G4444, was planted in 2-ha plots at 60 000 plants per hectare (low density) and at 100 000 plants per hectare (high density)”
e1“At harvest, the dry matter and ear contents were 24.2 and 34%, respectively, for the low-density treatment and 22.8 and 28%, respectively, for the high-density treatment”
Claim · model-written summary
High-density planting lowered dry matter content of the corn silage (22.8% versus 24.2%).
- Taxon
- cornZea mays subsp. mayst0
- Material
- Funk brand G4444e0
- Treatment
- high-density treatmente1
- Outcome
- dry mattere1
- Direction
- lowerinferrede1
- Value
- 22.8e1
- Comparator
- low-density treatmente1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“CORN SILAGE”
e0“A late-maturing corn hybrid, Funk brand G4444, was planted in 2-ha plots at 60 000 plants per hectare (low density) and at 100 000 plants per hectare (high density)”
e1“At harvest, the dry matter and ear contents were 24.2 and 34%, respectively, for the low-density treatment and 22.8 and 28%, respectively, for the high-density treatment”
Claim · model-written summary
Cows fed high-density silage had lower silage dry matter intake (10.33 versus 11.79 kg/day).
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- high-density silagee2
- Outcome
- Silage dry matter intakee2
- Direction
- lowerinferrede2
- Value
- 10.33 kg/daye2
- Comparator
- the low-density silagee2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“CORN SILAGE”
e2“Silage dry matter intake, milk yield and milk fat content were 10.33 kg/day, 27.11 kg/day and 3.52% for the cows fed high-density silage compared to 11.79 kg/day, 31.88 kg/day and 2.91% for those fed the low-density silage”
Claim · model-written summary
Cows fed high-density silage had lower milk yield (27.11 versus 31.88 kg/day).
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- high-density silagee2
- Outcome
- milk yielde2
- Direction
- lowerinferrede2
- Value
- 27.11 kg/daye2
- Comparator
- the low-density silagee2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“CORN SILAGE”
e2“Silage dry matter intake, milk yield and milk fat content were 10.33 kg/day, 27.11 kg/day and 3.52% for the cows fed high-density silage compared to 11.79 kg/day, 31.88 kg/day and 2.91% for those fed the low-density silage”
Claim · model-written summary
Cows fed high-density silage had higher milk fat content (3.52% versus 2.91%).
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- high-density silagee2
- Outcome
- milk fat contente2
- Direction
- higherinferrede2
- Value
- 3.52%e2
- Comparator
- the low-density silagee2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“CORN SILAGE”
e2“Silage dry matter intake, milk yield and milk fat content were 10.33 kg/day, 27.11 kg/day and 3.52% for the cows fed high-density silage compared to 11.79 kg/day, 31.88 kg/day and 2.91% for those fed the low-density silage”
Claim · model-written summary
Feeding low-density silage decreased the level of acetic acid in the rumen.
- Taxon
- cornZea mays subsp. mayst0
- Organ / stage
- rumene3
- Treatment
- low-density silagee3
- Outcome
- acetic acid in the rumene3
- Direction
- decreasede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“CORN SILAGE”
e3“Feeding the low-density silage resulted in a decreased level of acetic acid in the rumen and an increased level of propionic acid”
Claim · model-written summary
Feeding low-density silage increased the level of propionic acid in the rumen.
- Taxon
- cornZea mays subsp. mayst0
- Organ / stage
- rumene3
- Treatment
- low-density silagee3
- Outcome
- propionic acide3
- Direction
- increasede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“CORN SILAGE”
e3“Feeding the low-density silage resulted in a decreased level of acetic acid in the rumen and an increased level of propionic acid”
Claim · model-written summary
Blood hematocrit and plasma calcium levels were lower in cows fed low-density planting silage.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- low-density plantinge4
- Outcome
- Blood hematocrit and plasma calcium levelse4
- Direction
- lowere4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“CORN SILAGE”
e4“Blood hematocrit and plasma calcium levels were lower for cows fed the silage from the low-density planting”
Claim · model-written summary
Dry matter digestibility of the complete ration was 72.5 and 71.8% for high- and low-density plantings.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- high- and low-density plantingse5
- Outcome
- Dry matter digestibility of the complete ratione5
- Direction
- higherinferrede5
- Value
- 72.5 and 71.8%e5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“CORN SILAGE”
e5“Dry matter digestibility of the complete ration was 72.5 and 71.8% for the high- and low-density plantings, respectively”
Claim · model-written summary
Increased ear content of about 10 percentage units is associated with a decrease in milk fat content.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- an increased ear contente6
- Outcome
- milk fat contente6
- Direction
- decreasee6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“CORN SILAGE”
e6“an increased ear content of approximately 10 percentage units resulted in a corn silage which was consumed more readily, altered rumen fermentation and caused a decrease in milk fat content”
Claim · model-written summary
Increased ear content made the corn silage more readily consumed.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- an increased ear contente6
- Outcome
- consumede6
- Direction
- more readilye6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“CORN SILAGE”
e6“an increased ear content of approximately 10 percentage units resulted in a corn silage which was consumed more readily, altered rumen fermentation and caused a decrease in milk fat content”
Claim · model-written summary
Increased ear content altered rumen fermentation of cows fed the silage.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- an increased ear contente6
- Outcome
- rumen fermentatione6
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“CORN SILAGE”
e6“an increased ear content of approximately 10 percentage units resulted in a corn silage which was consumed more readily, altered rumen fermentation and caused a decrease in milk fat content”
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