Nutrition Values and in Vitro Gas Production Characteristics of Arundo donax in Different Growth Periods

OUYANG Fulong, CHEN Fu, PENG Yuanyuan, CAI Yixin, XIAO Liang, YI Zili, HE Jianhua

doi:10.3969/j.issn.1006-267x.2017.09.044

Chinese Journal of Animal Nutrition >

2017 , Vol. 29 >Issue 9: 3385 - 3391

DOI: https://doi.org/10.3969/j.issn.1006-267x.2017.09.044

Molecular Nutrition

Nutrition Values and in Vitro Gas Production Characteristics of Arundo donax in Different Growth Periods

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1. College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, China;
2. College of Agronomy, Hunan Agricultural University, Changsha 410128, China

Received date: 2017-03-05

Online published: 2017-09-08

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Abstract

This study was conducted to explore nutrition values and in vitro gas production characteristics of Arundo donax in different growth periods. Whole plant, leave and stem of Arundo donax in different growth periods (75, 90, 105, 120 and 135 d) were determine for nutrient contents by conventional analysis methods; fermentation fluid pH, dry matter disappearance rate (DMD), neutral detergent fiber disappearance rate (NDFD) and acid detergent fiber disappearance rate (ADFD), as well as gas production (GP) and GP dynamic parameters of Arundo donax were determined after fermented for 72 h by an in vitro GP method. The results showed as follows:1) with the extension of growth period, in whole plant of Arundo donax, crude protein content was gradually decreased, and neutral detergent fiber (NDF), acid detergent fiber (ADF) and acid detergent lignin (ADL) contents showed up-down-up of wave shape changes, but overall is on rise; nutrient contents in leave and stem were in great change. 2) With the extension of growth period, DMD, NDFD and ADFD were decreased, there were no significant differences between 75 and 90 d (P>0.05), and the two periods were significantly higher than 105 and 120 d (P<0.05 or P<0.01). 3) With the extension of growth period, maximum GP showed decreasing tendency, there was no significant difference between 75 and 90 d (P>0.05), and the two periods were significantly lower than the other periods (P<0.05 or P<0.01), and 105, 120 and 135 d were 40.22%, 50.98% and 51.53% lower than 90 d, respectively; GP rate showed similar tendency. In conclusion, Arundo donax using as a forage grass should be cut before 90 d.

Key words： Arundo donax; different growth periods; nutrition value; in vitro gas production

Cite this article

OUYANG Fulong, CHEN Fu, PENG Yuanyuan, CAI Yixin, XIAO Liang, YI Zili, HE Jianhua . Nutrition Values and in Vitro Gas Production Characteristics of Arundo donax in Different Growth Periods[J]. Chinese Journal of Animal Nutrition, 2017 , 29(9) : 3385 -3391 . DOI: 10.3969/j.issn.1006-267x.2017.09.044

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