Technology of Sugarcane Caudate Lobe Feed Production by Sectional Soli-State Fermentation

doi:10.3969/j.issn.1000-2561.2021.03.035

Abstract

Abstract:

The aim of the experiment was to study the technological conditions of producing sugarcane caudate lobe feed production by the sectional solid-state fermentation technology. The raw material was sugarcane caudate lobe, five factors including inoculum quantity, moisture content, first stage fermentation time, concentrated-roughage and second stage fermentation time were optimized through single factor and orthogonal experiments. The results showed that when inoculated 0.15% fermenting microbe in the first stage fermentation substrate, adjusted the moisture content to 50%, sealed and fermented at normal atmospheric temperature, mixed with fresh sugarcane caudate lobe in the concen-trated-roughage ratios of 3∶7 and compacted and sealed after 5 days, the quality of sugarcane caudate lobe feed would be the best after 21 days. According to the technological conditions, the crude protein and crude fiber content of sugarcane caudate lobe feed was respectively 15.24% and 24.03%. The technology of sectional solid-state fermentation could rapidly and effectively improve the crude protein content, degrade crude fiber and improve sugarcane caudate feed palatability. It could be applied to the preparation of sugarcane caudate lobe feed.

Key words: sugarcane caudate lobe, sectional solid-state fermentation, feed quality

CLC Number:

S816.5

HUANG Zhenyong, LIAO Caixue, WANG Dongmei, LIANG Xiaojun, WEI Xinping, DAN Ming, ZHANG Ezhen. Technology of Sugarcane Caudate Lobe Feed Production by Sectional Soli-State Fermentation[J]. Chinese Journal of Tropical Crops, 2021, 42(3): 862-868.

Figures/Tables 8

Tab. 1 L9（33）orthogonal experiment factors and levels of first stage fermentation process

水平 Level	因素Factor
	A	B	C
	接种量 Inoculation amount	水分含量 Moisture content/%	一级发酵时间 First stage fermentation time/d
1	0.15	40	3
2	0.2	45	4
3	0.25	50	5

Fig. 1 Effects of different fermentation methods on feed quality Different lowercase letters indicate significant difference at 0.05 level.

Fig. 2 Effects of inoculum quantity on crude protein content of first stage fermented feed Different lowercase letters indicate significant difference at 0.05 level.

Fig. 3 Effect of moisture content on crude protein content of first stage fermented feed Different lowercase letters indicate significant difference at 0.05 level.

Fig. 4 Effect of the first stage fermentation time on crude protein content of first stage fermented feed Different lowercase letters indicate significant difference at 0.05 level.

Tab. 2 Results of L9（33）orthogonal experiment of first stage fermentation process

实验组 Treatment	A	B	C	粗蛋白 CP/%
CK	0	0	0	16.20
1	1	1	1	17.36
2	1	2	2	18.49
3	1	3	3	19.74
4	2	1	2	17.96
5	2	2	3	18.44
6	2	3	1	18.50
7	3	1	3	17.88
8	3	2	1	17.52
9	3	3	2	18.71
K1	18.530	17.733	17.793
K2	18.300	18.150	18.387
K3	18.037	18.983	18.687
R1	0.493	1.250	0.894
主次顺序	B>C>A
优水平	A₁	B₃	C₃
优组合	A₁B₃C₃

Fig. 5 Effect of concentrated-roughage on second stage fermented feed quality Different lowercase letters indicate significant difference at 0.05 level.

Fig. 6 Effect of second stage fermentation time on second stage fermented feed quality Different lowercase letters indicate significant difference at 0.05 level.

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