Nutrient composition and tannin contents of forage sorghum, cowpea, lablab and mucuna hays grown in limpopo province of South Africa

T. Gwanzura, J. W. Ngambi, D. Norris

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

The nutrient composition and tannin contents of forage sorghum (Sorghum sudanese), cowpea (Vigna unguiculata), lablab (Lablab purpureus) and mucuna (Mucuna pruriens) were determined by chemical methods. The experimental design was a completely randomised design with four treatments: forage sorghum, cowpea, lablab and mucuna hays. All the legume species had higher (p<0.05) protein contents than sorghum hay, ranging from 18-22%. Within the legume species, cowpea hay had higher (p<0.05) protein content than lablab and mucuna hays. Similarly, lablab hay had higher (p<0.05) protein content than mucuna hay. Sorghum hay had higher (p<0.05) NDF and ADF values than the legume species. Mucuna hay had higher (p<0.05) concentrations of both condensed tannins and hydrolysable tannins than cowpea, lablab and sorghum hays, while lablab hay had the highest (p<0.05) concentrations of total polyphenols. Among the legume species, mucuna hay had higher (p<0.05) NDF and ADF values than lablab hay, while those of cowpea and lablab hays were similar (p>0.05). Legumes have the potential of being utilised as protein supplements for ruminants on low quality roughages. However, tannins in legumes may have both negative and positive effects on diet intake, digestibility and palatability. There is, therefore, need to evaluate these legumes when used as protein supplements for ruminants on a basal diet of sorghum hay.

Original languageEnglish
Pages (from-to)256-262
Number of pages7
JournalAsian Journal of Animal Sciences
Volume6
Issue number5
DOIs
Publication statusPublished - Aug 27 2012

Fingerprint

Lablab
Mucuna
cowpeas
tannins
nutrient content
South Africa
legumes
forage
protein supplements
ruminants
Mucuna pruriens
Lablab purpureus
Vigna unguiculata
palatability
diet
hay
experimental design
digestibility

All Science Journal Classification (ASJC) codes

  • Animal Science and Zoology

Cite this

@article{4d8c3217cfc244568d53d6d0d636a0cb,
title = "Nutrient composition and tannin contents of forage sorghum, cowpea, lablab and mucuna hays grown in limpopo province of South Africa",
abstract = "The nutrient composition and tannin contents of forage sorghum (Sorghum sudanese), cowpea (Vigna unguiculata), lablab (Lablab purpureus) and mucuna (Mucuna pruriens) were determined by chemical methods. The experimental design was a completely randomised design with four treatments: forage sorghum, cowpea, lablab and mucuna hays. All the legume species had higher (p<0.05) protein contents than sorghum hay, ranging from 18-22{\%}. Within the legume species, cowpea hay had higher (p<0.05) protein content than lablab and mucuna hays. Similarly, lablab hay had higher (p<0.05) protein content than mucuna hay. Sorghum hay had higher (p<0.05) NDF and ADF values than the legume species. Mucuna hay had higher (p<0.05) concentrations of both condensed tannins and hydrolysable tannins than cowpea, lablab and sorghum hays, while lablab hay had the highest (p<0.05) concentrations of total polyphenols. Among the legume species, mucuna hay had higher (p<0.05) NDF and ADF values than lablab hay, while those of cowpea and lablab hays were similar (p>0.05). Legumes have the potential of being utilised as protein supplements for ruminants on low quality roughages. However, tannins in legumes may have both negative and positive effects on diet intake, digestibility and palatability. There is, therefore, need to evaluate these legumes when used as protein supplements for ruminants on a basal diet of sorghum hay.",
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Nutrient composition and tannin contents of forage sorghum, cowpea, lablab and mucuna hays grown in limpopo province of South Africa. / Gwanzura, T.; Ngambi, J. W.; Norris, D.

In: Asian Journal of Animal Sciences, Vol. 6, No. 5, 27.08.2012, p. 256-262.

Research output: Contribution to journalArticle

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