反芻胃の消化に関する研究 : VII胃内容積に就て

概要

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In order to estimate the effect of microorganisms in the rumen on the nutrition of the ruminant quantitatively, it is necessery to determine the volume of liquid in the fore-stomach where numerousmicroorganisms live in an active state.Several experiments were conducted for this purpose, in which sodium chloride, powder or solution, was put into the rumen of goats through a permanent fistula and the concentration of Cl in the rumen liquor is determined at definite time intervals.The results obtained are as follows.1. When the feeding conditions are fixed on the whole, the concentration of Cl in the liquid part of the rumen content may be assumed practically to be constant. 2. The concentration of Cl in the rumen liquid attains to and remains at an almost constant level 2 or 3 hours after the administration of sodium chloride, which may be powder or solution.3. From the difference in Cl oncentration between the rumen liquids collected before and 2 hours after the administration of sodium chloride, respectively, liquid part of the eticulo-rumen ntents of the goats was calculated as follows.
社団法人日本畜産学会の論文