Generally, in forages, the increasing age leads to declined proportion of potentially digestible component while the proportion of lignin, protected cellulose, hemicelluloses and other indigestible fractions such as cuticle and silica increase
(Reid, 1973). Ademosun and Kolade (1973) have shown that the crude protein, Ether extract and Ash contents of grasses decreased with increasing maturity, while their contents of crude fiber, cell wall constituents, cellulose, lignin pasture mature, the proportion of the stem compared with the leaf also increase.
The growth and pasture quality of the grass are inversely proportional to one another, as a result of differences in botanical composition between the levels of maturity. The presence of an increased plant stem, typically of older plants, may restrict access to leafy parts and force animals to consume lower quality herbage
(Reiling, 2001). In addition, Reiling (2001) also noted that in the older pasture, the NDF ,ADF, ADL fractions increased with level of maturity, while the nitrogen content also decreases from the young to the matured plants (Reiling, 2001).
The factors that negatively affects the nutritional qualities are also of essential, as this has been an important case study.
Rethman (2001) noted that environment temperatures influences the production of vegetative materials and nutritive quality of guinea grass, as well as the increased plant maturity. Indicating that forage plants are better utilized at younger stages of development.