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Effect Of Supplying The Sunflower Seed Through Treating With Different Method On The Rumen Fermentation And Milk Conjugated Linolic Acid (CLA) In Dairy

Posted on:2008-11-26Degree:MasterType:Thesis
Country:ChinaCandidate:L YuFull Text:PDF
GTID:2143360218459696Subject:Animal production and management
Abstract/Summary:PDF Full Text Request
milk, increase milk yield and the content of CLA in milk that applying fat in the ratio of pre-lactated period. Results showed fatty feedstuff affected through treating with different methods on fatty acid in milk, especially CLA. This objects study the effect applying the sunflower seed through treating with different methods on ruminal fermentation,digestion and metabolism,performance and content of CLA in milk, premises was fat is uniform content in ratio. The sunflower seed was treated by three ways as followed: baking,rolling and crushing. The results as followed:1. There were not distinction about pH value and the amount of infusorian in ruminal fluid (P>0.05).The content of NH3-N,BCP,total VFA,the ratio of Acetic acid: propanoic acid and liquid phase flowed velocity were similar in three treatments (P>0.05). As a result, the effect was not significantly differented adding the sunflower seed through three different processing on ruminal fermentation.2. The digestibility of OM,CP,NDF and crude fat was not different in total alimentary tract (P>0.05), nitric metabolism was similar (P>0.05). In a word, the effect was not obviously differented adding the sunflower seed through three different processing on nitric metabolism and nutrients` digestibility.3. The results showed the effect was not clearly dissimilarity adding the sunflower seed through three different processing on milk yield and composing (P>0.05).4. The effect was not evidently distincted adding the sunflower seed through three different processing on the ratio of fatty acid in milk, but the content of CLA , rolling was the highest compared with others (P<0.05).( baking:1.46±0.33, Rolling:1.01±0.03, crushing:0.69±0.07)。...
Keywords/Search Tags:Conjugated linolic acid (CLA), Baking, Rolling, Crushing, Dairy, Sunflower seed
PDF Full Text Request
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