Publikationsdatenbank

The effect of various anionic salts on ruminant pH and short-chain fatty acids in non-pregnant and non-lactating cows (2009)

Art

Zeitschriftenartikel / wissenschaftlicher Beitrag

Autoren

Gelfert, C. C.

Engel, M.

Männer, K.

Staufenbiel, R.

Quelle

New Zealand Veterinary Journal

Bandzählung: 57

Heftzählung: 4

Seiten: 225 – 228

ISSN: 0048-0169

Sprache

Englisch

Verweise

Pubmed: 19649017

Kontakt

Institut für Tierernährung

Königin-Luise-Str. 49
14195 Berlin
+49 30 838 52256
tierernaehrung@vetmed.fu-berlin.de

Abstract / Zusammenfassung

AIM: To evaluate whether the different anionic salts used in the prevention of parturient paresis have an impact on the ruminal pH and the production of short-chain fatty acids (SCFA) in mature non-pregnant, non-lactating cows.

METHODS: Eleven Holstein-Friesian crossbred cows were administered 2,000 mEq of either one of three chloride salts, viz CaCl2, MgCl2, or NH4Cl; four sulphate salts, viz CaSO4, CaSO4 with a grain size of 10 microm, MgSO4, or (NH4)2SO4; two combinations of anionic salts, viz CaCl2+MgSO4, or CaSO4+NH4Cl; NaCl; or water, via a ruminal cannula over a 14-day treatment period. The salts and controls were assigned in an 11 x 11 Latin square, and the cows were distributed randomly. Ruminal fluid was collected four times in each treatment period for monitoring the ruminal pH, and four times a day at Days 7 and 14 for monitoring any changes in the concentrations of SCFA.

RESULTS: Feeding anionic salts did not change the ruminal pH, total concentration of SCFA, or distribution pattern of the main SCFA acetic acid, propionic acid, butyric acid or valeric acid (p>0.05).

CONCLUSIONS AND CLINICAL RELEVANCE: Feeding anionic salts has no negative side effect on the ruminal pH and concentrations of SCFA in mature non-pregnant, non-lactating cattle. Impaired function of the rumen due to the feeding of anionic salts is not likely.