1. Department of Food Science, Nutrition and Technology, University of Nairobi. P.O. Box 29053-00625, Nairobi, Kenya.
2. Department of Animal Production, University of Nairobi. P.O. Box 29053-00625, Nairobi, Kenya.
3. Department of Plant Science and Crop Protection, University of Nairobi. P.O. Box 29053- 00625, Nairobi, Kenya