Daniel R C
Can J Comp Med. 1983 Jul;47(3):276-80.
The relationship between plasma calcium level and rumen motility in cows and sheep and abomasal motility in cows was investigated by inducing hypocalcaemia in seven cows and five sheep by the infusion of Na2 EDTA over a period of approximately two hours. Rates and amplitudes of rumen and abomasal contractions were markedly reduced by the reduction of plasma calcium level to approximately 50% of normal. There were significant positive linear relationships (P less than 0.05) between rate and amplitude of rumen contractions in both sheep and cows over a plasma calcium range of 1-3 mmol/L. There was also a significant linear relationship (P less than 0.05) between plasma calcium and abomasal rate of contraction over the same range in cows, but the relationship with amplitude of abomasal contraction was not quite significant (P less than 0.1 greater than 0.05).
通过在大约两小时内给7头奶牛和5只绵羊输注乙二胺四乙酸二钠（Na2 EDTA）诱导低钙血症，研究了奶牛和绵羊血浆钙水平与瘤胃运动以及奶牛皱胃运动之间的关系。当血浆钙水平降至正常水平的约50%时，瘤胃和皱胃收缩的速率和幅度显著降低。在血浆钙浓度为1 - 3 mmol/L的范围内，绵羊和奶牛瘤胃收缩的速率和幅度之间均存在显著的正线性关系（P < 0.05）。在相同范围内，奶牛血浆钙与皱胃收缩速率之间也存在显著的线性关系（P < 0.05），但与皱胃收缩幅度的关系不太显著（0.05 < P < 0.1）。
