Bird damage and tannin content in grain sorghum hybrids under different environments.

Hoshino, Tsuguhiro; Duncan, R. R.

doi:10.1626/jcs.50.332

Cited by 9 publications

(4 citation statements)

References 7 publications

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“…White sorghum has a similar nutritive value to that of maize for monogastric animals (Douglas et al, 1991a;NRC, 1994) and can replace maize completely in poultry diets (Esonu et al, 1999). However, economic cultivation of white sorghum is limited because of its vulnerability to wild birds (Hoshino and Duncan, 1981). Therefore, production of red sorghum, which is bird resistant and has higher yields, is encouraged.…”

Section: Introductionmentioning

confidence: 99%

Comparative apparent metabolisable energy values of high, medium and low tannin varieties of sorghum in cockerel, guinea fowl and quail

Mandal

et al. 2006

British Poultry Science

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1. Nitrogen-corrected apparent metabolisable energy values (AMEN) of three varieties of sorghum (white-low tannin, brown-medium tannin and red-high tannin) were measured in three species of poultry (cockerel, guinea fowl and Japanese quail) by a practical diet replacement (total collection) method. 2. Each variety of sorghum was tested at two concentrations (200 and 400 g/kg of reference diet) in 6 replications with one cockerel or guinea fowl or two quails per replication. The duration of the trial included a 10 d preliminary feeding period (on conventional grower diet) followed by a 12 d adaptation period (on reference and test diets) and a 3 d balance period (with recording of feed intake and excreta output). 3. The calculated AMEN values of different sorghum varieties were: white--12.9, 12.8 and 12.7; brown--12.7, 12.3 and 12.6; and red--11.4, 11.1 and 11.6 MJ/kg for cockerels, guinea fowls and quails, respectively. The mean AMEN value of red sorghum (11.3 MJ/kg) was significantly lower than those of brown (12.5 MJ/kg) or white sorghum (12.8 MJ/kg). A negative correlation was observed between tannin concentration and AMEN. 4. There was no significant difference in the AMEN values of white, brown and red sorghum varieties to the different poultry species. AMEN values of sorghum for the cockerel could, therefore, be used in practical feed formulation for guinea fowl and quail.

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Section: Introductionmentioning

confidence: 99%

Comparative apparent metabolisable energy values of high, medium and low tannin varieties of sorghum in cockerel, guinea fowl and quail

Mandal

et al. 2006

British Poultry Science

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“…Proanthocyanidin, commonly termed condensed tannin, which is widely distributed over the plant kingdom, is found in many tissues that protect living bodies, especially bark, [1][2][3] seed coat, 4 and fruit skin. 5 It is considered to be a defensive component against other living things.…”

Section: Introductionmentioning

confidence: 99%

Tyrosinase inhibitory activity of proanthocyanidins from woody plants

Takagi

Mitsunaga

2003

J Wood Sci

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Flavanol values, molecular weight distributions, polyphenolic patterns, and tyrosinase inhibitions of proanthocyanidins (PACs) from karamatsu (Larix sp.) bark, acacia Morishima (Acacia mearnsii) bark, and commercial quebracho (Schinopsis lorentzii) extracts were examined to investigate the relation between the structures of PACs from woody plants and tyrosinase inhibitory activities. Aqueous acetone (70%) extracts of acacia showed high flavanol contents and strong tyrosinase inhibition. On the other hand, the quebracho extracts inhibited tyrosinase activity slightly despite its high flavanol content. Phenyl nucleus analysis by the nucleus exchange reaction provided information that karamatsu, quebracho, and acacia extracts consist of procyanidin, profisetinidin, and prorobinetinidin, respectively. The relation between the phenolic hydroxylation pattern and tyrosinase inhibition suggested that the PACs with a 5,7-dihydroxyphenyl structure in the A-ring and a 3,4,5-trihydroxyphenyl structure in the B-ring have potent tyrosinase inhibitory activity.

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“…Bullard et al (1980) reported that tannins and phenolic compounds were the chemical means for bird resistance. Hoshino and Duncan (1981) reported that hybrids of sorghum which contained tannin had no bird damage, and that the tannin content varied with the environmental condition. Tipton et al (1970) reported that the contents of tannic acid and total astringents in the grain were higher in the bird-resistant hybrids than in the susceptible hybrids.…”

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confidence: 99%

Growth, Yield and Quality of Bird-Resistant Sunflower Cultivars Found in Genetic Resources

Yasumoto

Yamaguchi

Yoshida

et al. 2012

Plant Production Science

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Bird damage and tannin content in grain sorghum hybrids under different environments.

Cited by 9 publications

References 7 publications

Comparative apparent metabolisable energy values of high, medium and low tannin varieties of sorghum in cockerel, guinea fowl and quail

Comparative apparent metabolisable energy values of high, medium and low tannin varieties of sorghum in cockerel, guinea fowl and quail

Tyrosinase inhibitory activity of proanthocyanidins from woody plants

Growth, Yield and Quality of Bird-Resistant Sunflower Cultivars Found in Genetic Resources

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