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Study On The Efficiency Of Mixed Fermentation Of Tomato Pomace With Reed,Alfalfa And Corn Straw

Posted on:2010-04-29Degree:MasterType:Thesis
Country:ChinaCandidate:S F R X T YuFull Text:PDF
GTID:2143360275487975Subject:Animal Nutrition and Feed Science
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This research was carried out to evaluate the fermentation quality and nutrition value of mixed silage of reed,alfalfa and corn straw whith tomato pomace which were different moisture content of 40%, 50%, 60%, 70% (The following were Groupâ… ,â…¡,â…¢,â…£) and different fermenting period of 30,45,60d.and analysing the rumen disappearance rate of silage on sheep.then do the palatability test for sheep.Testâ… : there was significant effects of the different moisture centent on the silage quelity, sensory evaluation of groupâ… ,â…¡andâ…¢were significantly better than groupâ…£; from pH value, organic acids and NH3-N,we can clearly see that, groupâ…¡andâ…¢pH values and groupâ…¢andâ…£NH3-N are better than the other groups, lactic acid was high in groupsâ…¡andâ…¢.acetic acid was higher in groupsâ… ,â…¡andâ…¢than another, the propionic acid was higher in control group and groupâ…¢,â…£, groupâ…£higher levels of butyric acid; from the nutrient contents, the compare of DM content and fermentation of raw materials is not great changed ( P> 0.05), CP, ADF and EE contents gradually increased with the increase of the mixed ratio, NDF content gradually decreased.Test II: There is no significant difference between the sensory evaluation of the different fermentation time;According to the content of the pH value,lactic acid and ammonia nitrogen,pH value decreased as the fermentation time prolonged,and NH3-N gradually increased, The lactic acid content was high of the fermentation time 45d. Acetic acid, propionic acid and butyric acid were gradually increased. DM, CP, ADF, OM and EE contents were gradually increased as the fermentation time prolonged, meanwhile NDF decreased;Test III: From the nylon bag test , the DM, CP, NDF and ADF disappearance rate gradually increased as the tomato mixture ratio increased. the disappearance rate of the Groupâ…¢andâ…£were significantly higher than the groupâ… andâ…¡. Different fermentation time significantly effected the disappearance rate of mixed silage. the 45d was higher than other fermentation period, and fermentation of 30,45 and 60d were higher than the 0d, Show that the efficiency of fermentation was better.Testâ…£: The palatability test results showed that, tomato and alfalfa mixed silage group has always been a priority feed by sheep, followed the mixed silage group of the tomato pomace and corn straw, and the tomato pomace and reed mixed silage group finally. Therefore, the high-water tomato pomace mixed with other forage silage modulation can enhance the sheep's appetite, improve feed utilizations.
Keywords/Search Tags:tomato pomace, reed, alfalfa, corn straw, mixed silage
PDF Full Text Request
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