Abstract
Three corn hybrids harvested as whole-plant silage were evaluated in three separate feeding trials with lactating dairy cows. In trial 1, 24 multiparous Holstein cows were used in a replicated 4 x 4 Latin square with 28-d periods. Treatments were conventional (Pioneer 3563) and leafy (Mycogen TMF 106) corn silage hybrids, each planted at low (59,000 plants/ha) and high (79,000 plants/ha) plant populations. There were no milk production differences between treatments. Total-tract digestibility of dietary starch was higher for leafy compared with conventional corn hybrids. In trial 2, 26 multiparous Holstein cows were assigned randomly to diets containing either conventional (48% forage diet) or brown-midrib (60% forage diet) corn silage in a crossover design with 8-wk periods. Milk yield was lower, but milk fat percentage and yield were higher, for the high-forage diet containing brown-midrib corn silage. In trial 3, 24 multiparous Holstein cows were used in a replicated 4 x 4 Latin square with 28-d periods. Treatments were corn silage at two concentrations of neutral detergent fiber (Garst 8751, 39.2% NDF; Cargill 3677, 32.8% NDF) each fed in normal- (53% of dry matter) and high- (61 to 67% of dry matter) forage diets. Milk production was not different between corn hybrids. Increased concentrate supplementation increased DMI and milk production. There were minimal benefits to the feeding of leafy or low-fiber corn silage hybrids. Feeding brown-midrib corn silage in a high-forage diet increased milk fat percentage and yield compared with conventional corn silage fed in a normal-forage diet.
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Claims 8
Claim · model-written summary
Leafy and conventional corn silage hybrids produced no milk production differences.
- Taxon
- corn
Zea mays subsp. mayse0 - Treatment
- leafye1
- Outcome
- milk productione2
- Direction
- no milk production differencese2
- Comparator
- conventionale1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Three corn hybrids harvested as whole-plant silage were evaluated in three separate feeding trials with lactating dairy cows”
e1“Treatments were conventional (Pioneer 3563) and leafy (Mycogen TMF 106) corn silage hybrids”
e2“There were no milk production differences between treatments. Total-tract digestibility of dietary starch was higher for leafy compared with conventional corn hybrids”
Claim · model-written summary
Total-tract digestibility of dietary starch was higher for leafy than for conventional corn hybrids.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- leafye2
- Outcome
- Total-tract digestibility of dietary starche2
- Direction
- highere2
- Comparator
- conventional corn hybridse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Three corn hybrids harvested as whole-plant silage were evaluated in three separate feeding trials with lactating dairy cows”
e2“There were no milk production differences between treatments. Total-tract digestibility of dietary starch was higher for leafy compared with conventional corn hybrids”
Claim · model-written summary
The high-forage diet with brown-midrib corn silage lowered milk yield.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- high-forage diet containing brown-midrib corn silagee3
- Outcome
- Milk yielde3
- Direction
- lowere3
- Comparator
- conventional (48% forage diet)e3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Three corn hybrids harvested as whole-plant silage were evaluated in three separate feeding trials with lactating dairy cows”
e3“assigned randomly to diets containing either conventional (48% forage diet) or brown-midrib (60% forage diet) corn silage in a crossover design with 8-wk periods. Milk yield was lower, but milk fat percentage and yield were higher, for the high-forage diet containing brown-midrib corn silage”
Claim · model-written summary
The high-forage diet with brown-midrib corn silage raised milk fat percentage and yield.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- high-forage diet containing brown-midrib corn silagee3
- Outcome
- milk fat percentage and yielde3
- Direction
- highere3
- Comparator
- conventional (48% forage diet)e3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Three corn hybrids harvested as whole-plant silage were evaluated in three separate feeding trials with lactating dairy cows”
e3“assigned randomly to diets containing either conventional (48% forage diet) or brown-midrib (60% forage diet) corn silage in a crossover design with 8-wk periods. Milk yield was lower, but milk fat percentage and yield were higher, for the high-forage diet containing brown-midrib corn silage”
Claim · model-written summary
Brown-midrib corn silage in a high-forage diet increased milk fat percentage and yield compared with conventional silage in a normal-forage diet.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- Feeding brown-midrib corn silage in a high-forage diete7
- Outcome
- milk fat percentage and yielde7
- Direction
- increasede7
- Comparator
- conventional corn silage fed in a normal-forage diete7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Three corn hybrids harvested as whole-plant silage were evaluated in three separate feeding trials with lactating dairy cows”
e7“Feeding brown-midrib corn silage in a high-forage diet increased milk fat percentage and yield compared with conventional corn silage fed in a normal-forage diet”
Claim · model-written summary
Milk production did not differ between corn silage hybrids in the third trial.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- corn hybridse4
- Outcome
- Milk productione4
- Direction
- not differente4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Three corn hybrids harvested as whole-plant silage were evaluated in three separate feeding trials with lactating dairy cows”
e4“Milk production was not different between corn hybrids”
Claim · model-written summary
Increased concentrate supplementation increased dry matter intake and milk production.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- concentrate supplementatione5
- Outcome
- DMI and milk productione5
- Direction
- increasede5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Three corn hybrids harvested as whole-plant silage were evaluated in three separate feeding trials with lactating dairy cows”
e5“Increased concentrate supplementation increased DMI and milk production”
Claim · model-written summary
Feeding leafy or low-fiber corn silage hybrids gave minimal benefits.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- leafy or low-fiber corn silage hybridse6
- Outcome
- benefitse6
- Direction
- minimale6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Three corn hybrids harvested as whole-plant silage were evaluated in three separate feeding trials with lactating dairy cows”
e6“There were minimal benefits to the feeding of leafy or low-fiber corn silage hybrids”
The same questions in other papers
Zea mays subsp. mays · yield · Zea mays (maize)Results differ
95 papers in the same direction as this paper · 196 in the opposite direction
- positive
- positive
- positive
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See all 292 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.