Abstract
In two experiments, 36 multiparous Holstein cows were used to evaluate silages from early or late maturing hybrid corn, each planted at two population densities, 75,000 and 150,000 plants/ha. Silages in Experiment 1 were 1) an early and 2) a late maturing corn planted at 75,000 plants/ha, and in Experiment 2 1) an early and 2) a late maturing corn were planted at 150,000/ha. Cows in Experiment 1 were group-fed a total mixed ration in a 50:50 concentrate:forage ratio, whereas in Experiment 2, cows were individually fed a total mixed ration in a proportion of 60:40. In both experiments 75% of the forage was corn silage. Cows fed the rations containing the early and late corn planted at 75,000 plants/ha had similar milk production, composition, DM intake, efficiency of milk production, rumen pH, and concentration of NH 3 N and VFA. Cows fed the rations containing the early corn at 150,000 plants/ha had higher total milk production, DM intake, and total rumen VFA concentration than cows fed the late corn. Cows fed the late corn had higher milk fat test and feed efficiency. No differences were observed for milk protein, BW, rumen pH, and NH 3 N. If corn is planted at high population densities, it may be advanta-
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Claims 7
Claim · model-written summary
At 75,000 plants/ha, early and late maturing corn gave similar milk production, composition and DM intake in cows.
- Taxon
- corn
Zea mays subsp. mayse2 - Treatment
- early or late maturing hybrid corne1
- Outcome
- milk production, composition, DM intakee2
- Direction
- similare2
- Qualifier
- 75,000 plants/hae2
- Comparator
- late corne2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“In two experiments, 36 multiparous Holstein cows were used to evaluate silages from early or late maturing hybrid corn, each planted at two population densities, 75,000 and 150,000 plants/ha”
e2“Cows fed the rations containing the early and late corn planted at 75,000 plants/ha had similar milk production, composition, DM intake, efficiency of milk production, rumen pH, and concentration of NH 3 N and VFA”
Claim · model-written summary
At 75,000 plants/ha, early and late maturing corn gave similar efficiency of milk production and rumen pH.
- Taxon
- cornZea mays subsp. mayse2
- Treatment
- early and late corne2
- Outcome
- efficiency of milk production, rumen pHe2
- Direction
- similare2
- Qualifier
- 75,000 plants/hae2
- Comparator
- late corne2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“In two experiments, 36 multiparous Holstein cows were used to evaluate silages from early or late maturing hybrid corn, each planted at two population densities, 75,000 and 150,000 plants/ha”
e2“Cows fed the rations containing the early and late corn planted at 75,000 plants/ha had similar milk production, composition, DM intake, efficiency of milk production, rumen pH, and concentration of NH 3 N and VFA”
Claim · model-written summary
At 75,000 plants/ha, early and late maturing corn gave similar concentrations of NH 3 N and VFA in rumen fluid.
- Taxon
- cornZea mays subsp. mayse2
- Treatment
- early and late corne2
- Outcome
- concentration of NH 3 N and VFAe2
- Direction
- similare2
- Qualifier
- 75,000 plants/hae2
- Comparator
- late corne2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“In two experiments, 36 multiparous Holstein cows were used to evaluate silages from early or late maturing hybrid corn, each planted at two population densities, 75,000 and 150,000 plants/ha”
e2“Cows fed the rations containing the early and late corn planted at 75,000 plants/ha had similar milk production, composition, DM intake, efficiency of milk production, rumen pH, and concentration of NH 3 N and VFA”
Claim · model-written summary
At 150,000 plants/ha, early corn gave higher total milk production, DM intake and total rumen VFA concentration than late corn.
- Taxon
- cornZea mays subsp. mayse3
- Treatment
- early corn at 150,000 plants/hae3
- Outcome
- total milk production, DM intake, and total rumen VFA concentratione3
- Direction
- highere3
- Comparator
- late corne3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“In two experiments, 36 multiparous Holstein cows were used to evaluate silages from early or late maturing hybrid corn, each planted at two population densities, 75,000 and 150,000 plants/ha”
e3“Cows fed the rations containing the early corn at 150,000 plants/ha had higher total milk production, DM intake, and total rumen VFA concentration than cows fed the late corn”
Claim · model-written summary
Cows fed late corn had higher milk fat test and feed efficiency.
- Taxon
- cornZea mays subsp. mayse1
- Treatment
- late corne4
- Outcome
- milk fat test and feed efficiencye4
- Direction
- highere4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“In two experiments, 36 multiparous Holstein cows were used to evaluate silages from early or late maturing hybrid corn, each planted at two population densities, 75,000 and 150,000 plants/ha”
e4“Cows fed the late corn had higher milk fat test and feed efficiency”
Claim · model-written summary
Milk protein and body weight did not differ between maturity treatments of corn silage.
- Taxon
- cornZea mays subsp. mayse1
- Treatment
- early or late maturing hybrid corne1
- Outcome
- milk protein, BWe5
- Direction
- No differencese5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“In two experiments, 36 multiparous Holstein cows were used to evaluate silages from early or late maturing hybrid corn, each planted at two population densities, 75,000 and 150,000 plants/ha”
e5“No differences were observed for milk protein, BW, rumen pH, and NH 3 N”
Claim · model-written summary
Rumen pH and NH 3 N did not differ between maturity treatments of corn silage.
- Taxon
- cornZea mays subsp. mayse1
- Treatment
- early or late maturing hybrid corne1
- Outcome
- rumen pH, and NH 3 Ne5
- Direction
- No differencese5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“In two experiments, 36 multiparous Holstein cows were used to evaluate silages from early or late maturing hybrid corn, each planted at two population densities, 75,000 and 150,000 plants/ha”
e5“No differences were observed for milk protein, BW, rumen pH, and NH 3 N”
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