Publication Date
1985
Location
Kyoto Japan
Description
In order to quantify the relationship between plant growth rate and its dry matter digestibility, an analytical method was proposed. The change in digestibility was expressed by the difference between mean relative growth rates of total dry matter and indigestible dry matter. And a concept of specific formation rate was introduced to show the efficiency of formation of indigestible materials assuming which are formed from accumulated digestible materials. The method was applied to the results of an experiment in which green panic (Panicum maximum var. trichoglume cv. Petrie) was grown for two successive periods of a week, and treated with each of three temperatures of 20°, 25° and 30°C in the respective periods. Plants grew best in 30°(lst period)-30°(2nd period) treatment and in vitro dry matter digestibility was the lowest in 25°-30°. Generally ascending temperatures increased relative growth rate of indigestible materials more than that of total dry matter leading to lower digestibilities. Specific formation rate of plants grown under the respective temperatures in the first period increased under the higher temperatures in the second period, especially in ascending temperatures. The use of the proposed method will give unified informations on dry matter production and digestibility of plants in comparing among forage species or assessing environmental effects.
Citation
Masuda, Y, "Analysis of Dry Matter Digestibility of Green Panic as Affected by the Change in Temperature" (1985). IGC Proceedings (1985-2023). 28.
(URL: https://uknowledge.uky.edu/igc/1985/ses10/28)
Included in
Agricultural Science Commons, Agronomy and Crop Sciences Commons, Plant Biology Commons, Plant Pathology Commons, Soil Science Commons, Weed Science Commons
Analysis of Dry Matter Digestibility of Green Panic as Affected by the Change in Temperature
Kyoto Japan
In order to quantify the relationship between plant growth rate and its dry matter digestibility, an analytical method was proposed. The change in digestibility was expressed by the difference between mean relative growth rates of total dry matter and indigestible dry matter. And a concept of specific formation rate was introduced to show the efficiency of formation of indigestible materials assuming which are formed from accumulated digestible materials. The method was applied to the results of an experiment in which green panic (Panicum maximum var. trichoglume cv. Petrie) was grown for two successive periods of a week, and treated with each of three temperatures of 20°, 25° and 30°C in the respective periods. Plants grew best in 30°(lst period)-30°(2nd period) treatment and in vitro dry matter digestibility was the lowest in 25°-30°. Generally ascending temperatures increased relative growth rate of indigestible materials more than that of total dry matter leading to lower digestibilities. Specific formation rate of plants grown under the respective temperatures in the first period increased under the higher temperatures in the second period, especially in ascending temperatures. The use of the proposed method will give unified informations on dry matter production and digestibility of plants in comparing among forage species or assessing environmental effects.
