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通过测定果树枝、菌糠、中药渣、发酵猪粪垫料以及稻壳/木屑不同配比垫料内腐殖质及其组分含量,研究育肥猪一个生长周期内猪发酵床垫料中腐殖质及其主要组分胡敏酸、富里酸的形态变化特性。结果表明:初始中药渣垫料内胡敏酸与富里酸总碳量及富里酸含量最高,初始菌糠垫料内胡敏酸含量、胡/富比及胡敏酸E4/E6比值最高。在育肥猪一个生长周期内,除中药渣垫料外,包括稻壳/木屑不同配比的其他垫料内胡敏酸与富里酸总量表现为前三个月增加而后降低,富里酸表现为前两个月增加而后下降;除菌糠垫料外,包括稻壳/木屑不同配比的其他垫料胡敏酸均表现为持续增加,所有垫料内胡敏酸E4/E6值均下降。饲养三批猪的稻壳/木屑垫料内腐殖质及其不同组分含量以及胡敏酸E4/E6值均相对较低。中药渣、菌糠、果树枝与发酵猪粪垫料同一取样时期垫料内胡敏酸与富里酸总量、胡敏酸以及富里酸含量差异显著,稻壳/木屑垫料不同配比同一取样时期垫料内胡敏酸与富里酸总量、胡敏酸以及富里酸含量差异不显著。不同垫料间胡敏酸E4/E6差异显著,表现为发酵猪粪>果树枝>菌糠>中药渣(初始期除外),稻壳/木屑配比为60/40时胡敏酸E4/E6值较低。
The content of humus and its components in the litter of different ratio of rice hull, fungus chaff, Chinese medicinal residue, fermented pig manure litter and rice husk / The main components of humic acid, fulvic acid morphological characteristics. The results showed that the total carbon and fulvic acid contents of humic acid and fulvic acid were the highest in the initial Chinese medicine litter, and the ratio of humic acid, Hu / Fu ratio and humic acid E4 / E6 was the highest in the initial litter of litter. In one growth cycle of fattening pigs, the total amount of humic acid and fulvic acid in other litter besides Chinese litter and litter, including the different ratios of rice husk and sawdust, increased in the first three months and then decreased. The content of fulvic acid The first two months increased and then decreased. Except for the bacterial waste litter, the other litter humic acids, including the different ratios of rice husk and sawdust, showed a continuous increase, and all the litter hygienic E4 / E6 values decreased. The content of humus and its components and the humic acid E4 / E6 values in the three husks of pigs were relatively low. The content of humic acid, fulvic acid, humic acid and fulvic acid in the litter samples of Chinese medicinal residue, fungus bran, fruit tree branch and fermented pig manure dunnage at the same sampling time were significantly different. The same sampling During the litter, the contents of humic acid, fulvic acid, humic acid and fulvic acid were not significantly different. The difference of humic acid E4 / E6 between different litter was significant, which showed that the fermented pig manure> fruit branch> fungus bran> Chinese medicinal residue (excluding the initial period), humic acid E4 / E6 Lower value.