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Journal of Animal and Veterinary Advances
Year: 2005 | Volume: 4 | Issue: 12 | Page No.: 1021-1024
Rumen Degradability of Imbrasia belina (Mophane worm) and Carcass Meal
Rasengwatshe A and O.R. Madibela
Abstract: This study was carried out to evaluate the dry matter degradability of mophane worm and carcass meal. It is believed that farmers in the region are using mophane as a source of protein for their livestock. Nylon bags were used to incubate mophane and carcass meal samples in the rumen of two steers for different time periods. After each time period the bags were removed and washed under tap water. The residue in the bag was weighed and the percentage degradability was expressed as the amount of dry matter that disappeared after weighing the residue. Percentage dry matter disappearing was plotted against time and the graph used to derive degradation constants. It was found that mophane worm have higher readily soluble material ‘a`, than carcass meal (33 versus 8%). This, together with the extent of degradation reaction, resulted in a higher degradation for mophnae worm than carcass meal. However, degradation of carcass meal was faster than that of mophane worm (0.171 verses 0.086-1), but this did not improve the degradability of carcass as the degradation curve was lower than that of mophane worm. This may be due to an exhaustion of degradable material caused by the heat treatment of carcass meal. At an assumed passage rate of 0.05-1, mophane worm had a higher effective degradability (ED) than carcass meal. This means that more mophane worm would be fermented in the rumen than carcass meal. In order to protect some of the mophane worm from rumen fermentation, it would be necessary to provide heat treatment either by roasting or baking.
How to cite this article:
Rasengwatshe A and O.R. Madibela , 2005. Rumen Degradability of Imbrasia belina (Mophane worm) and Carcass Meal. Journal of Animal and Veterinary Advances, 4: 1021-1024.