Effects Of Different Storage Temperature And Moisture Content On Microbe And Quality Of Alfalfa Bundles

As a forage,alfalfa have an important position in the development of animal husb- andry,agricultural structure adjustment and ecological construction.However, alfalfa growing and harvest season are mainly raining and hot,alfalfa is prone to mildew in this damp and hot environment.For that reason,experiments were conducted to study the effects of storage temperature and moisture content on microbe and quality of alf- alfa bundles,and to provide the theoretical basis for obtaining high quality alfalfa bun- dles.Test1: Effects of different storage temperature on mouldness and quality of alfalfa bundlesAbstract: To Study the effects of different storage temperature on mouldness and qu- ailty of alfalfa bundles, three different storage temperature (25℃, 30℃, 35℃)were designed using single-factor experimrntal design, three replicates in each treatment. The results showed that: (1) The higher the storage temperature was, and the longer of storage time was, the more molds there were,alfalfa bundles would be mildew faster. (2) There were significant differences in crude protein of every treatment group among the various days (P<0.05). There were significant differences in crude protent of every dayamong treatment groups (P<0.05). The content of crude protein was the highest under 30℃storage temperature.The number of mold was positively correlated with crude protein content. (3) Storage temperature was not significantly associated with both of neutral detergent fiber and acid detergent fiber(P<0.05).Test2: Effects of different moisture content on mouldness and quality of alfalfa bundlesAbstract: To Study the effects of different moisture content on mouldness and quailty of alfalfa bundles, three different moisture content (15%, 25%, 35%) were designed using single-factor experimrntal design,three replicates in each treatment. The results showed that: (1) The higher the moisture content was and the longer of storage time was, the more molds there were, alfalfa bundles would be mildew faster. The number of mold was highest in 9d, followed by a sharp decline during the whole experimental period. (2)There were significant differences in crude protein of every treatment group among the various days (P<0.05). There were significant differences in crude protent of every day among treatment groups (P<0.05). The number of mold was positively correlated with crude protein content. (3) There were significant differences in ether extract of every treatment group among the various days (P<0.05). There were significant differences in ether extract of every day among treatment groups (P<0.05). The number of mold was negatively correlated with ether extract content. (4) There were significant differences in soluble sugar of every treatment group among the various days (P<0.05). There were significant differences in soluble sugar of every day among treatment groups (P<0.05). The number of mold was negatively correlated with soluble sugar content.Test3: Effects of different storage temperature and moisture content on microbe and quality of alfalfa bundlesAbstract: To study the storage temperature and moisture content on microbe and quality of alfalfa bundles,three different storage temperature (25℃, 30℃, 35℃)and three different moisture content (15%, 25%, 35%) were dseigned using two-factor expertimental design. The results showed that:(1)The change of microbe in all treatmental groups were obviously. The number of bacteria and mold were a maximu- m in the 35℃35% treatment group. The number of bacteria and mold were positively correlated with storage temperature and moisture content. Bacteria and mold were both increased firstly and then decreased during the whole experimental period. (2)Nutritional quality. The number of microbe was positively correlated with crude protein content. Storage temerature and moisture content were positively correlated with crude protein content. The number of microbe,storage temperature and moisture content were negatively correlated with ether extract, soluble sugar, crude ash, calcium, phosphorus,protein solubility. (3) Physical index. Volumetric weight did not change, swelling capacity changed greatly during early experimental period. Specific porosity in all treatment groups changed significantly. The change of specific porosity was also obvious during the whole experimental period, specific porosity of 25℃15%, 25℃25%, 30℃15%, 35℃15% groups of decreased with storage time increasing. Specific porosity of 25℃35%, 35℃25%groups increased with storage time increasing. Specific porosity of 35℃25% group was highest in everyday.