Study on degradability of nutrients in total mixed ration composed of ensiled pineapple waste and rice straw as roughage sources
By Puliphong jitmano
This experiment was conducted to study the degradability of DM, CP and NDF in total mixed ration with ensiled pineapple waste and rice straw as sources by using nylon bag technique. Four crossbred Holstein Friesian steers with average weight 400 + - 30 kg were randomly allotted to fed one of four dietary treatments. They were TMRs composed of ensiled pineapple waste: rice straw at different ratio, i.e. 50:0, 45:5, 40:5 and 35:15 (dry matter basis) respectively, according to Latin square design. Each period lasted for 21 days. Chemical composition showed that all the experimental diets (TMR) were high in nutritive value. Dry matter content of total mixed rations increased with decreasing level of ensiled pineapple waste. The nylon bag technique revealed that DM, CP and NDF digestibility of TMR increased with incubation times from 4 to 96 hours TMR 1 (50:0) had significantly higher in % DM, CP and NDF degradability than the others (P<0.05). The potential degradability (A+B) of DM, CP and NDF was significantly higher in TMR 1 (P<0.05). TMR 2 had significantly higher in CP degradability than the others.
Department of Animal Technology, Maejo University Chiangmai , Thailand.
February 28 2008 09:06 pm | Research