Abstract
The deleterious effect of frost on corn harvested for silage was investigated with 30 lactating Holstein cows fed silages from corn harvested at the milk or dough stage, or after one, two, or five frosts. The fibrous components of the corn plant increased as maturity and dry matter content increased, whereas the mineral content tended to decrease. Dry matter intake and 4% fat-corrected milk increased as maturity of the silage increased up to the silage harvested after two frosts and then declined for the silage harvested after five frosts. Gross energy apparent digestibility decreased from 64.9% for milk stage silage to 60.6% for silage from corn harvested after five frosts. Partitioning of gross energy, nitrogen, calcium, phosphorus, potassium, and magnesium provided similar increasing trends in feed intake, utilization, and milk production from milk stage silage to that harvested after two frosts, then a decline of all measurements occurred with silage harvested after five frosts. Net energy for lactation was calculated for each silage from the observed digestible energy, from a regression equation used by the provincial feed evaluation laboratories, and from a recently published summative equation; the latter method appeared best.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 4
Claim · model-written summary
Fibrous components of the corn plant increased as maturity and dry matter content increased.
- Taxon
- corn plant
Zea mays subsp. mayse1 - Treatment
- maturitye1
- Outcome
- fibrous componentse1
- Direction
- increasede1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The fibrous components of the corn plant increased as maturity and dry matter content increased, whereas the mineral content tended to decrease”
Claim · model-written summary
Mineral content of the corn plant tended to decrease as maturity increased.
- Taxon
- corn plantZea mays subsp. mayse1
- Treatment
- maturitye1
- Outcome
- mineral contente1
- Direction
- tended to decreasee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The fibrous components of the corn plant increased as maturity and dry matter content increased, whereas the mineral content tended to decrease”
Claim · model-written summary
Dry matter intake and 4% fat-corrected milk increased with silage maturity up to two frosts, then declined after five frosts.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- maturity of the silagee2
- Outcome
- Dry matter intakee2
- Direction
- increasede2
- Qualifier
- up to the silage harvested after two frostse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The deleterious effect of frost on corn harvested for silage was investigated with 30 lactating Holstein cows fed silages from corn harvested at the milk or dough stage, or after one, two, or five frosts”
e2“Dry matter intake and 4% fat-corrected milk increased as maturity of the silage increased up to the silage harvested after two frosts and then declined for the silage harvested after five frosts”
Claim · model-written summary
Gross energy apparent digestibility decreased from 64.9 to 60.6 per cent for silage from corn harvested after five frosts compared with milk-stage silage.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- corn harvested after five frostse3
- Outcome
- Gross energy apparent digestibilitye3
- Direction
- decreasede3
- Value
- 60.6%e3
- Comparator
- milk stage silagee3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The deleterious effect of frost on corn harvested for silage was investigated with 30 lactating Holstein cows fed silages from corn harvested at the milk or dough stage, or after one, two, or five frosts”
e3“Gross energy apparent digestibility decreased from 64.9% for milk stage silage to 60.6% for silage from corn harvested after five frosts”
The same questions in other papers
Zea mays subsp. mays · quality: grain · Zea mays (maize)Positive and negative results
7 papers in the same direction as this paper · 2 in the opposite direction
- positive
- positive
- negative
6 papers more in this group
See all 10 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.