Method of reducing decomposition of chlorophyll in alfalfa silage

A chlorophyll and alfalfa technology, applied in the field of silage, can solve the problems of unclear chlorophyll degradation and metabolism rules, and achieve the effects of increasing the in vitro dry matter degradation rate, improving the fermentation quality, and slowing down the loss of chlorophyll.

Inactive Publication Date: 2020-09-04
HEILONGJIANG BAYI AGRICULTURAL UNIVERSITY
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Problems solved by technology

Alfalfa silage with good fermentation quality maintains a color similar to that of green alfalfa raw materials, but the law of chlorophyll degradation and metabolism during silage is unclear

Method used

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  • Method of reducing decomposition of chlorophyll in alfalfa silage
  • Method of reducing decomposition of chlorophyll in alfalfa silage
  • Method of reducing decomposition of chlorophyll in alfalfa silage

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Embodiment Construction

[0013] Below in conjunction with experiment the present invention will be further described:

[0014] A method for reducing the decomposition of chlorophyll in alfalfa silage comprises the following steps: the alfalfa raw material is dried in the dark and ventilated place until it is semi-dried, with a water content of about 50%, chopped to 2-3 cm, pressed with sulfuric acid of different concentrations and hydrochloric acid of different concentrations Prepare mixed acid by mixing at a certain volume ratio. Add a certain amount of mixed acid to alfalfa. After processing the sample, weigh 200g and put it into a black polyethylene bag with a size of 16×25cm. Seal the package with a vacuum machine and store it in a dark environment at room temperature. Small-scale fermentation was carried out under , respectively in 0, 1, 3, 5, 7, 15, 22, 39, 46, 53, 60, 67, 74 days unsealed, and 3 bags were unsealed at each time.

[0015] This application aims at the influence of different concen...

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Abstract

The invention provides a method of reducing decomposition of chlorophyll in alfalfa silage. The method comprises the following steps of airing an alfalfa raw material at a dark and ventilation place until being semi-dry with the water content of the alfalfa raw material being about 50 percent, cutting up the alfalfa raw material into 2-3 cm, mixing the alfalfa raw material with 1mol/L sulfuric acid and 2mol/L hydrochloric acid according to a volume ratio of 1 to 4 to prepare mixed acid, adding the mixed acid with an addition amount being 2-10 percent (by mass percentage), treating a sample, weighing 200g of the treated samples, charging the weighed samples in 16*25cm black polyethylene bags respectively, performing sealing packaging with a vacuum machine, performing small-scale fermentation in a room-temperature dark environment, and performing unsealing at day 0, day 1, day 3, day 5, day 7, day 15, day 22, day 39, day 46, day 53, day 60, day 67 and day 74 respectively with unsealing 3bags at each time. By means of the method, chlorophyll a and chlorophyll b are gradually decreased along with extension of a fermentation time in the silage process, and chlorophyll loss in the latestage of alfalfa silage can be reduced by adding MA.

Description

Technical field: [0001] The invention relates to the technical field of silage, in particular to a method for reducing the decomposition of chlorophyll in alfalfa silage. Background technique: [0002] When making silage, commonly used inorganic acid additives are hydrochloric acid, sulfuric acid and phosphoric acid. In 1970, German A.N.BNPTAHEH proposed mixed acid (sulfuric acid, hydrochloric acid) as a preservative used in silage, which can effectively inhibit protein decomposition and respiration of plant cells. Although the industrial by-product hydrochloric acid is a strong acid, it does not contain harmful components such as arsenic and chlorocarbons. However, it can be used as a silage preservative at low concentrations, has no adverse effects on animal organisms, and can also increase the intake of vegetable protein. When the alfalfa silage treated with 6% mixed acid was fed to beef cattle, it was found that the pure protein in the rumen of the acid treatment group ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K30/15A23K30/10
CPCA23K30/15A23K30/10
Inventor 曹阳臧延青李德军张爱忠姜宁
Owner HEILONGJIANG BAYI AGRICULTURAL UNIVERSITY
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