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231225s2019 xx |||||o 00| ||eng c |
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|a 10.5713/ajas.18.0695
|2 doi
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|a pubmed24n0987.xml
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|a (DE-627)NLM296313068
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|a (NLM)31010985
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|a DE-627
|b ger
|c DE-627
|e rakwb
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| 041 |
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|a eng
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| 100 |
1 |
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|a Dong, Zhihao
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Comparison of nitrogen transformation dynamics in non-irradiated and irradiated alfalfa and red clover during ensiling
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|c 2019
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Revised 28.09.2020
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|a published: Electronic-Print
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|a Citation Status PubMed-not-MEDLINE
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|a Objective: To study the contribution of plant enzyme and microbial activities on protein degradation in silage, this study evaluated the nitrogen transformation dynamics during ensiling of non- and irradiated alfalfa (Medicago sativa L.) and red clover (Trifolium pratense L.)
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|a Methods: Alfalfa and red clover silages were prepared and equally divided into two groups. One group was exposed to γ-irradiation at a recommended dosage (25Gky). Therefore, four types of silages were produced: (1) non-irradiated alfalfa silage; (2) irradiated alfalfa silage; (3) non-irradiated red clover silage; and (4) irradiated red clover silage. These silages were opened for fermentation quality and nitrogen components analyses after 1, 4, 8 and 30 days, respectively
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|a Results: The γ-irradiation successfully suppressed microbial activity, indicated by high pH and no apparent increases in fermentation end products in irradiated silages. All nitrogen components, except for peptide-N, increased throughout the ensiling process. Proteolysis less occurred in red clover silages compared with alfalfa silages, indicated by smaller (P<0.05) increment in peptide-N and free amino acid N (FAA-N) during early stage of ensiling. The γ-irradiation treatment increased (P<0.05) peptide-N and FAA-N in alfalfa silage at day 1, whereas not in red clover silage; these two nitrogen components were higher (P<0.05) between day 4 and day 30 in non-irradiated silages than the irradiated silages. The ammonia nitrogen (NH3-N) and non-protein nitrogen (NPN) were highest in non-irradiated alfalfa silage and lowest in irradiated red clover silage after ensiling
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|a Conclusion: The result of this study indicate that red clover and alfalfa are two forages varying in their nitrogen transformation patterns, especially during early stages of ensiling. Microbial activity plays a certain role in the proteolysis and seems little affected by the presence of PPO in red clover compared with alfalfa
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4 |
|a Journal Article
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|a Alfalfa
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| 650 |
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4 |
|a Ensiling
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| 650 |
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4 |
|a Irradiation
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| 650 |
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4 |
|a Nitrogen Transformation
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| 650 |
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4 |
|a Red Clover
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| 700 |
1 |
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|a Li, Junfeng
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Chen, Lei
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Yuan, Xianjun
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Shao, Tao
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Asian-Australasian journal of animal sciences
|d 1998
|g 32(2019), 10 vom: 01. Okt., Seite 1521-1527
|w (DE-627)NLM098195883
|x 1011-2367
|7 nnns
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| 773 |
1 |
8 |
|g volume:32
|g year:2019
|g number:10
|g day:01
|g month:10
|g pages:1521-1527
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|u http://dx.doi.org/10.5713/ajas.18.0695
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