Effect of hypocalcemia on motility of the ruminant stomach [Sheep]

The sensitivity of ruminal and abomasal contractions to hypocalcemia was evaluated in sheep. Serum diffusible calcium concentrations were determined during induction of hypocalcemia (IV infusion of Na2EDTA) and recovery from hypocalcemia (no infusion). Contractile strength of the rumen gradually dec...

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Bibliographic Details
Published inAmerican journal of veterinary research Vol. 42; no. 9; p. 1488
Main Authors Huber, T.L, Wilson, R.C, Stattelman, A.J, Goetsch, D.D
Format Journal Article
LanguageEnglish
Published United States 01.09.1981
Subjects
Abomasum - physiopathology
Animals
Calcium - blood
Gastrointestinal Motility
Hypocalcemia - physiopathology
Hypocalcemia - veterinary
Muscle Contraction
Rumen - physiopathology
Sheep
Sheep Diseases - physiopathology
Stomach, Ruminant - physiopathology
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Summary:The sensitivity of ruminal and abomasal contractions to hypocalcemia was evaluated in sheep. Serum diffusible calcium concentrations were determined during induction of hypocalcemia (IV infusion of Na2EDTA) and recovery from hypocalcemia (no infusion). Contractile strength of the rumen gradually decreased as serum diffusible calcium concentrations decreased; significant correlation (r = 0.75; P less than 0.001) was observed. Ruminal contractions disappeared before clinical signs of hypocalcemia were seen. Abomasal contractions were slightly reduced when serum diffusible calcium concentrations were equal to those producing ruminal stasis and clinical signs of hypocalcemia. These observations indicated that ruminal dysfunction may occur considerably before the onset of clinical signs of hypocalcemia.
Bibliography:L74
8126179
ISSN:0002-9645
1943-5681