Indicators of induced subacute ruminal acidosis (SARA) in Danish Holstein cows

Acta Veterinaria Scandinavica
A M DanscherJ C Plaizier

Abstract

The prevalence of subacute ruminal acidosis (SARA) in dairy cows is high with large impact on economy and welfare. Its current field diagnosis is based on point ruminal pH measurements by oral probe or rumenocentesis. These techniques are invasive and inaccurate, and better markers for the diagnosis of SARA are needed. The goal of this study was to evaluate clinical signs of SARA and to investigate the use of blood, faecal and urinary parameters as indicators of SARA. Six lactating, rumen cannulated, Danish Holstein cows were used in a cross-over study with three periods. The first and second periods included two cows on control diet and two cows on nutritional SARA challenge. The third period only included two cows on SARA challenge. Control diet was a conventional total mixed ration [45.5% dry matter (DM), 17.8% crude protein, 43.8% neutral detergent fibre, and 22.5% acid detergent fibre (DM basis)]. SARA challenge was conducted by substituting control diet with grain pellets (50% wheat/barley) over 3 days to reach 40% grain in the diet. Ruminal pH was measured continuously. Blood samples were collected once daily at 7 h after feeding. Samples of faeces and urine were collected at feeding, and at 7 and 12 h after feeding. Blo...Continue Reading

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Citations

Aug 27, 2016·Journal of Animal Physiology and Animal Nutrition·B StefanskaJ Skomiał
Mar 17, 2017·Journal of Animal Physiology and Animal Nutrition·M EgerGerhard Breves
Dec 17, 2018·Animal Science Journal = Nihon Chikusan Gakkaihō·Keiko NishimuraShiro Kushibiki
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Related Concepts

Metabolic Acidosis
Metazoa
Bos indicus
Cattle Diseases
Feces
Rumen
Stomach Diseases
Viral Markers
Cross-Over Studies
Acids

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