Paper · 2013 · Pakistan Veterinary Journal

Evaluation of Fermentation Dynamics and Structural Carbohydrate Degradation of Napiergrass Ensiled with Additives of Urea and Molasses

H Wang Rong; Chengqun Yu; Z H Li; et al.

10
claims
27
verbatim quotes
11
citations
2
research areas
✓
Open access · cc-by-nc

Abstract

This study examined the effects of urea and molasses on fermentation dynamics and structural carbohydrate degradation of Napiergrass (Pennisetum purpureum Schumach), which was ensiled in laboratory silos for 3, 7, 14, and 30 days at the ambient temperature. The treatments were additions (fresh weight basis) of: no molasses or urea (control), no molasses and 0.4% urea (U), 4% molasses and 0% urea (M), 4% molasses and 0.4% urea (MU). The results showed that the control group produced an unstable fermentation. U silage always had smallest amount of lactic acid and highest levels of pH, acetic acid, butyric acid and ammonia nitrogen. Compared with control, both M and MU increased water soluble carbohydrate contents which promoted lactic acid fermentation domination, but MU did not restrain clostridial fermentation. After 30 days of ensiling, compared with the control, both M and MU lowered structural carbohydrate contents, and U lowered crude protein content but MU increased this parameter. It was concluded that the combination of 4% molasses with 0.4% urea could improve the fermentation and nutritive qualities of Napiergrass but was not sufficient to inhibit clostridial fermentation. (C) 2013 PVJ. All rights reserved

Abstract from the paper’s OpenAlex record; open copy licensed cc-by-nc. 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 10

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Molasses alone and with urea increased water soluble carbohydrate contents of napiergrass silage compared with control.

Taxon
NapiergrassCenchrus purpureuse0
Treatment
4% molassese1
Outcome
water soluble carbohydrate contentse2
Direction
increasede2
Comparator
controle2
Setting
laboratory silose0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Cenchrus purpureus
Cenchrus purpureus · TaxonForest and Kim Starr · CC BY 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“Napiergrass (Pennisetum purpureum Schumach), which was ensiled in laboratory silos for 3, 7, 14, and 30 days at the ambient temperature”

✓ located verbatim in the source · abstract, characters 121–256 · show in text ↑
e1

“The treatments were additions (fresh weight basis) of: no molasses or urea (control), no molasses and 0.4% urea (U), 4% molasses and 0% urea (M), 4% molasses and 0.4% urea (MU)”

✓ located verbatim in the source · abstract, characters 258–434 · show in text ↑
e2

“Compared with control, both M and MU increased water soluble carbohydrate contents”

✓ located verbatim in the source · abstract, characters 638–720 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Molasses with urea did not restrain clostridial fermentation in napiergrass silage.

Taxon
NapiergrassCenchrus purpureuse0
Treatment
4% molasses and 0.4% ureae1
Outcome
clostridial fermentatione3
Direction
did not restraine3

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Cenchrus purpureus
Cenchrus purpureus · TaxonForest and Kim Starr · CC BY 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“Napiergrass (Pennisetum purpureum Schumach), which was ensiled in laboratory silos for 3, 7, 14, and 30 days at the ambient temperature”

✓ located verbatim in the source · abstract, characters 121–256 · show in text ↑
e1

“The treatments were additions (fresh weight basis) of: no molasses or urea (control), no molasses and 0.4% urea (U), 4% molasses and 0% urea (M), 4% molasses and 0.4% urea (MU)”

✓ located verbatim in the source · abstract, characters 258–434 · show in text ↑
e3

“but MU did not restrain clostridial fermentation”

✓ located verbatim in the source · abstract, characters 773–821 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

After 30 days of ensiling, molasses alone and with urea lowered structural carbohydrate contents of napiergrass silage compared with control.

Taxon
NapiergrassCenchrus purpureuse0
Treatment
4% molassese1
Outcome
structural carbohydrate contentse4
Direction
lowerede4
Qualifier
After 30 days of ensilinge4
Comparator
controle4

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Cenchrus purpureus
Cenchrus purpureus · TaxonForest and Kim Starr · CC BY 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“Napiergrass (Pennisetum purpureum Schumach), which was ensiled in laboratory silos for 3, 7, 14, and 30 days at the ambient temperature”

✓ located verbatim in the source · abstract, characters 121–256 · show in text ↑
e1

“The treatments were additions (fresh weight basis) of: no molasses or urea (control), no molasses and 0.4% urea (U), 4% molasses and 0% urea (M), 4% molasses and 0.4% urea (MU)”

✓ located verbatim in the source · abstract, characters 258–434 · show in text ↑
e4

“After 30 days of ensiling, compared with the control, both M and MU lowered structural carbohydrate contents”

✓ located verbatim in the source · abstract, characters 823–931 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

After 30 days of ensiling, urea alone lowered crude protein content of napiergrass silage compared with control.

Taxon
NapiergrassCenchrus purpureuse0
Treatment
0.4% ureae1
Outcome
crude protein contente5
Direction
lowerede5
Qualifier
After 30 days of ensilinge5
Comparator
controle5

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Cenchrus purpureus
Cenchrus purpureus · TaxonForest and Kim Starr · CC BY 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“Napiergrass (Pennisetum purpureum Schumach), which was ensiled in laboratory silos for 3, 7, 14, and 30 days at the ambient temperature”

✓ located verbatim in the source · abstract, characters 121–256 · show in text ↑
e1

“The treatments were additions (fresh weight basis) of: no molasses or urea (control), no molasses and 0.4% urea (U), 4% molasses and 0% urea (M), 4% molasses and 0.4% urea (MU)”

✓ located verbatim in the source · abstract, characters 258–434 · show in text ↑
e5

“After 30 days of ensiling, compared with the control, both M and MU lowered structural carbohydrate contents, and U lowered crude protein content but MU increased this parameter”

✓ located verbatim in the source · abstract, characters 823–1000 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

After 30 days of ensiling, molasses with urea increased crude protein content of napiergrass silage compared with control.

Taxon
NapiergrassCenchrus purpureuse0
Treatment
4% molasses and 0.4% ureae1
Outcome
crude protein contente5
Direction
increasede5
Qualifier
After 30 days of ensilinge5
Comparator
controle5

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Cenchrus purpureus
Cenchrus purpureus · TaxonForest and Kim Starr · CC BY 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“Napiergrass (Pennisetum purpureum Schumach), which was ensiled in laboratory silos for 3, 7, 14, and 30 days at the ambient temperature”

✓ located verbatim in the source · abstract, characters 121–256 · show in text ↑
e1

“The treatments were additions (fresh weight basis) of: no molasses or urea (control), no molasses and 0.4% urea (U), 4% molasses and 0% urea (M), 4% molasses and 0.4% urea (MU)”

✓ located verbatim in the source · abstract, characters 258–434 · show in text ↑
e5

“After 30 days of ensiling, compared with the control, both M and MU lowered structural carbohydrate contents, and U lowered crude protein content but MU increased this parameter”

✓ located verbatim in the source · abstract, characters 823–1000 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

The control silage of napiergrass produced an unstable fermentation.

Taxon
NapiergrassCenchrus purpureuse0
Outcome
fermentatione6
Qualifier
unstablee6

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Cenchrus purpureus
Cenchrus purpureus · TaxonForest and Kim Starr · CC BY 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“Napiergrass (Pennisetum purpureum Schumach), which was ensiled in laboratory silos for 3, 7, 14, and 30 days at the ambient temperature”

✓ located verbatim in the source · abstract, characters 121–256 · show in text ↑
e6

“The results showed that the control group produced an unstable fermentation”

✓ located verbatim in the source · abstract, characters 436–511 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Urea silage had the smallest amount of lactic acid among napiergrass silages.

Taxon
NapiergrassCenchrus purpureuse0
Treatment
0.4% ureae1
Outcome
amount of lactic acide7
Direction
smalleste7

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Cenchrus purpureus
Cenchrus purpureus · TaxonForest and Kim Starr · CC BY 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“Napiergrass (Pennisetum purpureum Schumach), which was ensiled in laboratory silos for 3, 7, 14, and 30 days at the ambient temperature”

✓ located verbatim in the source · abstract, characters 121–256 · show in text ↑
e1

“The treatments were additions (fresh weight basis) of: no molasses or urea (control), no molasses and 0.4% urea (U), 4% molasses and 0% urea (M), 4% molasses and 0.4% urea (MU)”

✓ located verbatim in the source · abstract, characters 258–434 · show in text ↑
e7

“U silage always had smallest amount of lactic acid and highest levels of pH, acetic acid, butyric acid and ammonia nitrogen”

✓ located verbatim in the source · abstract, characters 513–636 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Urea silage had the highest levels of pH, acetic acid and butyric acid among napiergrass silages.

Taxon
NapiergrassCenchrus purpureuse0
Treatment
0.4% ureae1
Outcome
pH, acetic acid, butyric acide7
Direction
highest levelse7

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Cenchrus purpureus
Cenchrus purpureus · TaxonForest and Kim Starr · CC BY 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“Napiergrass (Pennisetum purpureum Schumach), which was ensiled in laboratory silos for 3, 7, 14, and 30 days at the ambient temperature”

✓ located verbatim in the source · abstract, characters 121–256 · show in text ↑
e1

“The treatments were additions (fresh weight basis) of: no molasses or urea (control), no molasses and 0.4% urea (U), 4% molasses and 0% urea (M), 4% molasses and 0.4% urea (MU)”

✓ located verbatim in the source · abstract, characters 258–434 · show in text ↑
e7

“U silage always had smallest amount of lactic acid and highest levels of pH, acetic acid, butyric acid and ammonia nitrogen”

✓ located verbatim in the source · abstract, characters 513–636 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Urea silage had the highest level of ammonia nitrogen among napiergrass silages.

Taxon
NapiergrassCenchrus purpureuse0
Treatment
0.4% ureae1
Outcome
ammonia nitrogene7
Direction
highest levelse7

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Cenchrus purpureus
Cenchrus purpureus · TaxonForest and Kim Starr · CC BY 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“Napiergrass (Pennisetum purpureum Schumach), which was ensiled in laboratory silos for 3, 7, 14, and 30 days at the ambient temperature”

✓ located verbatim in the source · abstract, characters 121–256 · show in text ↑
e1

“The treatments were additions (fresh weight basis) of: no molasses or urea (control), no molasses and 0.4% urea (U), 4% molasses and 0% urea (M), 4% molasses and 0.4% urea (MU)”

✓ located verbatim in the source · abstract, characters 258–434 · show in text ↑
e7

“U silage always had smallest amount of lactic acid and highest levels of pH, acetic acid, butyric acid and ammonia nitrogen”

✓ located verbatim in the source · abstract, characters 513–636 · show in text ↑
Intervention effectauthor interpretationoriginal resultpositivemeasured

Claim · model-written summary

The combination of 4% molasses with 0.4% urea could improve fermentation and nutritive qualities of napiergrass silage.

Taxon
NapiergrassCenchrus purpureuse2
Treatment
combination of 4% molasses with 0.4% ureae2
Outcome
fermentation and nutritive qualitiese2
Direction
could improvee2

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Cenchrus purpureus
Cenchrus purpureus · TaxonForest and Kim Starr · CC BY 3.0 us · Wikimedia Commons ↗

Verbatim

e2

“It was concluded that the combination of 4% molasses with 0.4% urea could improve the fermentation and nutritive qualities of Napiergrass”

✓ located verbatim in the source · abstract, characters 1002–1139 · show in text ↑

molasses · quality: sugar starch · Cenchrus purpureus (elephant grass)Results agree

4 papers: 4 positive, 0 negative or no effect

3 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive
See all 4 papers →

nitrogen · molecular: metabolites · Cenchrus purpureus (elephant grass)Positive and negative results

4 papers: 1 positive, 3 negative or no effect

2 papers in the same direction as this paper · 1 in the opposite direction

  1. positive
  2. negative
  3. no effect
See all 4 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.