title: Effects of feeding buffering mineral mixture on subacute rumen acidosis and some production traits in dairy cows.
abstract: This trial was designed in order to evaluate the incidence of subacute rumen acidosis (SARA) during early lactation and to investigate the possibilities for its prevention by use of a buffering mineral mixture. On the beginning of the trial it was found that the pH value of rumen fluid in 4 animals was lower than normal (pH < 6.0) and that 20% of animals have had SARA. The control and the experimental group of cows were fed the same meal with exception of concentrated feed which in the experimental group contained the mineral mix with buffering activity in amount of 1%. Continuous addition of buffering mineral mixture in the amount of 1% in concentrated feed for early lactation cows successfully prevents SARA formation and leads to increased milk production, as well as increased milk fat and protein content.
authors.affiliation: Department of Nutrition and Botany, Faculty of Veterinary Medicine, University of Belgrade, Bulevar Oslobodenja 18, Belgrade 11000, Serbia. petrujkic@vet.bg.ac.rs
authors.forename: Branko
authors.initials: B
authors.lastname: Petrujkić
authors.forename: Horea
authors.initials: H
authors.lastname: Samanc
authors.forename: Milan
authors.initials: M
authors.lastname: Adamović
authors.forename: Velibor
authors.initials: V
authors.lastname: Stojić
authors.forename: Tihomir
authors.initials: T
authors.lastname: Petrujkić
authors.forename: Svetlana
authors.initials: S
authors.lastname: Grdović
authors.forename: Dragan
authors.initials: D
authors.lastname: Sefer
authors.forename: Radmila
authors.initials: R
authors.lastname: Marković
mesh_terms: D000138:Acidosis / Q000209:etiology / Q000662:veterinary*; D000821:Animal Feed / Q000009:adverse effects*; D000818:Animals; D002021:Buffers; D002417:Cattle; D002418:Cattle Diseases / Q000209:etiology*; D004044:Dietary Proteins; D004734:Energy Metabolism; D005260:Female; D006863:Hydrogen-Ion Concentration; D007774:Lactation; D008903:Minerals / Q000009:adverse effects*; D006109:Poaceae; D012417:Rumen / Q000378:metabolism*; D012820:Silage
chemical_list: D002021:Buffers; D004044:Dietary Proteins; D008903:Minerals