Colvin H W, Digesti R D, Louvier J A
J Dairy Sci. 1978 Oct;61(10):1414-21. doi: 10.3168/jds.S0022-0302(78)83743-6.
Rumen motility was measured in cattle by recording changes in rumen pressure through a rumen cannula. Irrespective of diet, eating increased rumen motility and amplitude of primary rumen contractions. Succulent, readily fermentable, and nonscabrous alfalfa tops fed alone or with oat hay produced a greater frequency of primary and secondary rumen contractions than oat hay fed alone. The intrarumen pressure was also greater when alfalfa tops were fed. Oat hay in the diet caused primary rumen contractions of a greater amplitude than when alfalfa tops were fed alone. Correlations were positive between frequency of primary and secondary rumen contractions and intrarumen pressure.
通过瘤胃瘘管记录瘤胃压力变化来测定牛的瘤胃蠕动。无论日粮如何，采食都会增加瘤胃蠕动和原发性瘤胃收缩的幅度。单独饲喂或与燕麦干草一起饲喂多汁、易于发酵且无粗糙感的苜蓿顶部时，原发性和继发性瘤胃收缩的频率比单独饲喂燕麦干草时更高。饲喂苜蓿顶部时瘤胃内压力也更高。日粮中的燕麦干草引起的原发性瘤胃收缩幅度比单独饲喂苜蓿顶部时更大。原发性和继发性瘤胃收缩频率与瘤胃内压力之间呈正相关。
