Comparison on Degradation Rule of Six Kinds of Common Roughages for Ruminants in Rumen of Beef Cattle

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

doi:10.3969/j.issn.1006-267x.2019.04.024

Chinese Journal of Animal Nutrition >

2019 , Vol. 31 >Issue 4: 1666 - 1675

DOI: https://doi.org/10.3969/j.issn.1006-267x.2019.04.024

Molecular Nutrition

Comparison on Degradation Rule of Six Kinds of Common Roughages for Ruminants in Rumen of Beef Cattle

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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

Received date: 2018-09-29

Online published: 2019-04-16

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Abstract

This experiment was conducted to compare the degradation rule of six kinds of common roughages (corn straw, rice straw, peanut vine, soybean straw, sugarcane bagasse and sugarcane shoots) for ruminants in rumen of beef cattle, to provide references for efficient utilization in beef cattle production. Four 30-month, permanent cannulated Lilu steers (Limousin cattle×Luxi yellow cattle) with similar body weight of (415±20) kg were used in the trial. Nylon bag technique was used to evaluate rumen degradability characteristics of dry matter (DM), organic matter (OM), crude protein (CP), neutral detergent fibre (NDF) and acid detergent fibre (ADF). The results showed as follows:1) the CP content in peanut vine was significantly higher than that in other roughages (P<0.05), and the NDF content in peanut vine was significantly lower than that in other roughages (P<0.05). The CP content in sugarcane bagasse was significantly lower than that in other roughages (P<0.05), and the NDF content in sugarcane bagasse was significantly higher than that in other roughages (P<0.05). 2) The sequence of DM effective degradability from high to low was peanut vine > soybean straw > sugarcane shoots > corn straw > rice straw > sugarcane bagasse, and the DM effective degradability had significant difference among different roughages (P<0.05) except between corn straw and sugarcane shoots (P>0.05). The OM effective degradability of peanut vine was significantly higher than that of other roughages (P<0.05), and the OM effective degradability of sugarcane bagasse was significantly lower than that of other roughages (P<0.05). The CP effective degradability had significant difference among different roughages (P<0.05), and the sequence from high to low was peanut vine > corn straw > soybean straw > sugarcane shoots > rice straw > sugarcane bagasse. The NDF effective degradability of soybean straw was significantly higher than that of other roughages (P<0.05), and the NDF effective degradability of sugarcane bagasse was significantly lower than that of other roughages (P<0.05). The ADF effective degradability of peanut vine and soybean straw was significantly higher than that of other roughages (P<0.05), and the ADF effective degradability of sugarcane bagasse was significantly lower than that of other roughages (P<0.05). To sum up, the six kinds of common roughages for ruminant are vary in nutritional component contents and rumen degradation rule, and the peanut vine has the highest usable value, the sugarcane shoots is also a kind of high quality roughage resources, sugarcane bagasse has very low usable value and is unsuitable to be used individually for beef cattle.

Key words： beef cattle; roughage; nutritive value; rumen; degradation rule

Cite this article

WEI Chen, LIU Guifen, YOU Wei, JIN Qing, ZHANG Xianglun, ZHAO Hongbo, WAN Fachun . Comparison on Degradation Rule of Six Kinds of Common Roughages for Ruminants in Rumen of Beef Cattle[J]. Chinese Journal of Animal Nutrition, 2019 , 31(4) : 1666 -1675 . DOI: 10.3969/j.issn.1006-267x.2019.04.024

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