To get more production from these ruminants it is necessary to enhance the utilization of these LQF. The quality of LQF can be improved by using supplements that are rich in energy, protein, vitamin and minerals (Chaudhry,2008).
It is also important to know the availability and shortage of various nutrients in LQF as compared to high quality forages (HQF) so that the researchers in the future can develop most appropriate strategies for their use in ruminant diets.
Statistical Analyses: The data were analysed by using analysis of variance in General Linear Model of Minitab to compare forage groups of HQF and LQF for their compositions.
The HQF contained higher CP, EE, SS, TP and SP contents than that of LQF. However, the LQF contained higher DM, NDF, ADF and ADL when compared with the HQF.
Within LQF, the oxalate contents were significantly (P less than 0.05) higher for hay than other LQF.
In general, Calcium (Ca), Phosphorus (PHOS), Sulfur (S), Magnesium (Mg), Potassium (K) and Cobalt (Co) were significantly higher in HQF than LQF (P less than 0.05) whereas Manganese (Mn) content was higher in LQF.
Amongst the two forage groups, the LQF contained more Saturated Fatty Acids (SFA) whereas HQF contained more Poly-unsaturated Fatty Acids (PUFA).
In vitro degradability of forages: There were statistically significant differences between the IVD of the forages as shown in Table 4, where HQF had higher values than those of LQF (P less than 0.001).
Conversely, to increase the nutritive value and utilization of LQF in ruminants, additional supplements containing CP, EE and SS should have to be added when LQF are offered as a feed to the ruminants.
Among the four LQF, ryegrass hay appeared to contain relatively a better mix of CP and SS than the other LQF whereas out of the three HQF, dried ryegrass had a better nutrient mix comprising CP, EE and SS than other two HQF.
The mean tannin contents were higher in HQF than LQF (P greater than 0.05).