Comparison on Rule of Rumen Degradation between Lavender Straw and Lavender Straw Silage

WEI Chen, YOU Wei, TAN Xiuwen, JIN Qing, ZHANG Xianglun, LIU Guifen, ZHAO Hongbo, ZHANG Chen, WAN Fachun

doi:10.3969/j.issn.1006-267x.2018.07.041

Chinese Journal of Animal Nutrition >

2018 , Vol. 30 >Issue 7: 2799 - 2806

DOI: https://doi.org/10.3969/j.issn.1006-267x.2018.07.041

Molecular Nutrition

Comparison on Rule of Rumen Degradation between Lavender Straw and Lavender Straw Silage

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1. Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan 250100, China;
2. Shandong Provincial Key Laboratory of Animal Disease Control and Breeding, Jinan 250100, China;
3. Shandong Provincial Test Center for Beef Cattle Productivity, Jinan 250100, China;
4. College of Life Sciences, Shandong Normal University, Jinan 250014, China

Received date: 2017-12-27

Online published: 2018-07-20

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Abstract

The purpose of the study was to investigate the rumen degradation characteristics of lavender straw and lavender straw silage, and compared differences of their rule of rumen degradation. Four 1.5 years permanent cannulated Lilu bulls (Limousin×Luxi Yellow Cattle) with average body weight of (415±20) kg were used in the trial. Nylon bag technique was performed to evaluate rumen degradability and degradation parameters of dry matter (DM), organic matter (OM), crude protein (CP) and neutral detergent fiber (NDF) of lavender straw and lavender straw silage. The results showed that ensiling process significantly decreased the OM content of lavender straw (P<0.05), and significantly increased the ether extract (EE) content (P<0.05), and tended to increase the CP content (P=0.07) and decrease NDF content (P=0.08), but had no effect on acid detergent fiber (ADF) content (P>0.05). Ensiling process significantly increased rumen degradability of DM, OM and NDF at 72 h of lavender straw (P<0.05), and had no effect on rumen degradability of CP at 72 h (P>0.05). The efficient degradability of DM, OM, CP and NDF of lavender straw silage was significantly higher than that of lavender straw (P<0.05). Ensiling process did not affect the rapid degradation fraction (a) percentage of DM and OM of lavender straw (P>0.05), but significantly increased the percentage of slow degradation fraction (b) and available fraction of DM and OM (P<0.05), and tended to increase the degradation rate of slow degradation fraction (c) of DM (P=0.06). There was no difference on the percentage of rapid degradation fraction, slow degradation fraction and available fraction of CP between lavender straw and lavender straw silage (P>0.05), but the degradation rate of slow degradation fraction of CP was tended to be increased after ensiling process (P=0.06). Ensiling process significantly increased the rapid degradation fraction, available fraction percentage and degradation rate of slow degradation fraction of NDF of lavender straw (P<0.05), and tended to increase the percentage of slow degradation fraction of NDF (P=0.08). Above all, ensiling process can improve the quality of lavender straw and elevate its utilization efficiency by beef cattle. It will provide reference for further exploitation and use of lavender straw.

Key words： lavender straw; silage; rumen; rule of degradation

Cite this article

WEI Chen, YOU Wei, TAN Xiuwen, JIN Qing, ZHANG Xianglun, LIU Guifen, ZHAO Hongbo, ZHANG Chen, WAN Fachun . Comparison on Rule of Rumen Degradation between Lavender Straw and Lavender Straw Silage[J]. Chinese Journal of Animal Nutrition, 2018 , 30(7) : 2799 -2806 . DOI: 10.3969/j.issn.1006-267x.2018.07.041

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