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digestible protein with a TDN spread of 20.5% to 7.3. Digest ible protein was 2%. Rappahannock had but two Sudax silage samples submitted for test - results averaged 12.1% TDN and 1.55% digestible protein. Variations of TDN content are due primarily to state of maturity at harvest. Authorities say corn should be ensiled in the hard dough stage. At present it is felt Sudansorghum crosses should also be harvested In this stage (hard dough) however research is being conducted to determine accuracy of this belief. While hay tests in t; h e neighborhood of 50% TDN, we more frequently look upon this forage as a source of digestible protein for valancing rations. Variations in hays were as follows; j
90.7%