Dietary molasses increases ruminal pH and enhances ruminal biohydrogenation during milk fat depression

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dc.contributor.author Titgemeyer, Evan C.
dc.contributor.author Bradford, Barry J.
dc.date.accessioned 2010-11-22T18:00:13Z
dc.date.available 2010-11-22T18:00:13Z
dc.date.issued 2010-11-22
dc.identifier.uri http://hdl.handle.net/2097/6591
dc.description Dairy Research, 2009 is known as Dairy Day, 2009 en
dc.description.abstract Molasses has long been used in animal feeds for palatability and as a binding agent to ensure uniform consumption of essential nutrients. Recent work with molasses in highly fermentable diets has revealed that molasses might offer additional benefits in dairy rations. Feeding highconcentrate diets increases the risk of milk fat depression by disrupting the normal pathway of fatty acid biohydrogenation in the rumen. Preliminary research conducted at Kansas State University and other universities has indicated that dietary sugars have the potential to increase milk fat synthesis during milk fat depression. In this study, we sought to understand the reasons for this beneficial effect of molasses on milk fat synthesis. Despite the fact that molasses provides readily fermentable sugar, replacing 5% of dietary corn grain with molasses increased ruminal pH, improved fatty acid biohydrogenation, and shifted the profile of fermentation acids in a manner suggesting that growth of fiber-digesting bacteria was improved. Results of several studies suggest that 5% dietary molasses can increase milk fat yield by 5 to 10%, and the current study indicates that this effect is driven by a stabilization of ruminal pH and biohydrogenation en_US
dc.publisher Kansas State University. Agricultural Experiment Station and Cooperative Extension Service en_US
dc.relation.isPartOf Kansas Agricultural Experiment Station contribution; no. 10-103-S en_US
dc.relation.isPartOf Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 1021 en_US
dc.relation.isPartOf Dairy Day, 2009 en_US
dc.subject Dairy en_US
dc.subject Feed intake en_US
dc.subject Milk fatty acids en_US
dc.subject Milk yield en_US
dc.subject Molasses en_US
dc.subject Rumen pH en_US
dc.title Dietary molasses increases ruminal pH and enhances ruminal biohydrogenation during milk fat depression en_US
dc.type Conference paper en_US
dc.date.published 2009 en_US
dc.citation.epage 33 en_US
dc.citation.spage 29 en_US
dc.contributor.authoreid etitgeme en_US
dc.contributor.authoreid bbradfor en_US

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