Characterization of protein fractions and amino acids in ensiled alfalfa treated with different chemical additives

Guo, Xusheng; Ding, Wurong; Han, Jing; He, Zhenli

doi:10.1016/j.anifeedsci.2007.07.005

Cited by 60 publications

(70 citation statements)

References 26 publications

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“…Similar effects of organic acid were also reported by Guo et al (6) in alfalfa silage. Both additives seemed to cause a rapid drop in pH in the silage because plant proteases are more active between pH 6 and 7 than at pH 4 (30).…”

Section: Protein Fractionssupporting

confidence: 89%

“…The effect of organic acid on increasing B1 fraction was more prominent with barley and triticale ensiled at the dough stage than other treatments. Similarly, Guo et al (6) reported the addition of organic acid increased the B1 and B3 fraction content of alfalfa silage. The increase in B1 fraction and decrease in A fraction with the addition of silage additives suggests that additives can increase the true protein; considering silages have more NPN than dried forages (31), this could pose a nutritional advantage for ruminant nutrition.…”

Section: Protein Fractionsmentioning

confidence: 81%

“…The nutritional quality of CP in forages is determined by its rate and extent of degradation in the rumen, and this can be enhanced by increasing true protein that is resistant to microbial degradation in the rumen. Choosing the most efficient combination of forage species, timing the harvest, and silage additives could increase CP quality for ruminant production (5,6).…”

Section: Introductionmentioning

confidence: 99%

“…Most common silage additives like organic-acid-based and bacterial inoculant can reduce proteolysis and increase the true protein content of cereal silages. Guo et al (6) reported that organic acid reduced the NPN content of alfalfa silages. Similarly, Davies et al (10) reported reduced proteolysis in grass and clover silages after inoculation with a bacterial inoculant.…”

Section: Introductionmentioning

confidence: 99%

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Conservation characteristics and protein fractions of cereal silages ensiled with additives at the booting and dough stages of maturity

Keleş¹,

Çoşkun²,

İnal³

et al. 2014

Turk J Vet Anim Sci

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This paper describes the sintering behavior and some properties of sepiolite-based cordierite ceramics with the addition of boron oxide at up to 3% wt. Sepiolite, kaolin, and alumina were used to prepare cordierite compositions in the cordierite phase area in a MgO-Al 2 O 3 -SiO 2 system with an excess amount of CaO and some Fe 2 O 3 that basically came from sepiolite. Sintering of the dry-pressed samples was carried out at 850-1200 • C with a sintering time of 3 h. Sintered samples were characterized by XRD and SEM analysis, density, porosity, thermal expansion coefficient, shrinkage, and flexural strength measurements.The results showed that the addition of boron oxide reduced the cordierite formation temperature by about 100 • C and also reduced the sintering temperatures. The results also showed that the densification increased with increasing sintering temperatures up to 1100 • C, but above that temperature, partial melting began to occur in the samples, especially with larger additions of boron oxide.

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Section: Protein Fractionssupporting

confidence: 89%

Section: Protein Fractionsmentioning

confidence: 81%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Conservation characteristics and protein fractions of cereal silages ensiled with additives at the booting and dough stages of maturity

Keleş¹,

Çoşkun²,

İnal³

et al. 2014

Turk J Vet Anim Sci

View full text Add to dashboard Cite

show abstract

“…Results show that concentrations of amino acid in the silage were lower than that in the hay. The similar findings that amino acid breakdown of alfalfa silages have been reported by Guo et al (2008) and Wang et al (2009). Purwin et al 2014) found that the total amino acid content/100 g protein was affected by both the ensiling process and the plant species used (both p-values <0.05).…”

Section: Discussionsupporting

confidence: 75%

Evaluation of Nutritive Value and Identification of Fungi in Silage from New Kenaf (Hibiscus cannabinus) Cultivars

Ryu¹,

Kwon²,

Ahn³

et al. 2016

IJAB

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The effects of harvesting stage of new Kenaf cultivars on the nutritive values, amino acid contents and fungal abundance were investigated. The late and mid-late maturing cultivars offered more DM than did early-maturing cultivars. The DM was highest at 100 DAS in all Kenaf silage. For all cultivars, the crude protein content (7.4-18.4%) of silage was reduced if harvesting was delayed. The neutral detergent fiber (NDF) and acid detergent fiber (ADF) contents were not significantly different among the cultivars; however NDF and ADF contents increased significantly upon late harvesting. All silages had pH values under 4.0, ensuring stable storage. The optimum harvesting time for silage production, as evidenced by yield, fermentation characteristics and nutritive value, was 100 DAS. The concentrations of amino acid in the silage were lower than that in the hay. Silage produced by all Kenaf cultivars exhibited low yeast biodiversity; only one species (Pichia fermentans) was detected when the harvesting date was optimal.

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Effects of sowing methods on nitrogen compounds and protease activities of whole‐crop wheat silage

Tang

et al. 2023

Grassland Research

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Background: Whole-crop wheat (Triticum aestivum) has high nutritive value, and it has become one of the main sources of roughage for ruminants in some countries or regions. This study investigates the effects of no tillage on nitrogen compounds and protease activities of whole-crop wheat silage. Methods: Wheat was planted on the 9th day (NB9) and 5th day (NB5) before rice harvest and on the first day after rice harvest. Sowing before harvest involved no tillage and sowing after rice harvest involved either no tillage (NA1) or conventional tillage (CK). Results: Compared to CK, the crude protein content of NB9 and NB5 decreased by 16.4% and 9.58%, respectively. With the delay of the sowing date, the contents of non-protein nitrogen, rapidly degraded protein, and slowly degraded protein in whole-plant wheat tended to increase. Compared to NA1 wheat silage, the NH 3 -N content of NB9 and NB5 silages decreased by 52.7% and 34.4%, respectively. The acid protease activity of NA1 was significantly higher than that of other treatments (p < 0.05). Conclusions: There was no significant difference in the degree of protein degradation between NA1 and CK silages. Although the degree of protein degradation in early sowing was low, the degree of fermentation was also weak.

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Characterization of protein fractions and amino acids in ensiled alfalfa treated with different chemical additives

Cited by 60 publications

References 26 publications

Conservation characteristics and protein fractions of cereal silages ensiled with additives at the booting and dough stages of maturity

Conservation characteristics and protein fractions of cereal silages ensiled with additives at the booting and dough stages of maturity

Evaluation of Nutritive Value and Identification of Fungi in Silage from New Kenaf (Hibiscus cannabinus) Cultivars

Effects of sowing methods on nitrogen compounds and protease activities of whole‐crop wheat silage

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