Utilization of heat-dried stipe of mushroom (Agaricus bisporus Sing.) for animal feed
1993
Maeda, Y. (Tokyo Univ. of Agriculture (Japan)) | Takenaga, H. | Aso, S. | Yamanaka, Y.
In order to utilize stipe of mushroom (Agaricus beisporus Sing.) for animal feed, stipe was dried (freeze, 80, 120 degrees C) and ground to make powdered feed. Edible part of mushroom was freeze-dried as a control. 1) The contents of crude protein, crude fat, NDF and mineral (% of dry matter) in stipe showed 25, 1, 45 and 18%. Crude protein and crude fat contents in stipe were half as much as those in edible part. On the other hand, the contents of potassium (K), calcium (Ca), magnesium (Mg), phosphorus (P) and sodium (Na) in stipe showed 3.3, 0.3, 0.2, 0.8 and 0.14%, respectively. Those value except for P in stipe were higher than those in edible part. Especially, Ca content showed 15th times higher than that in edible part. 2) Amino acid contents (% of dry matter) in stipe showed lower value of 15% as compared to 25% in edible part. Leu, Arg, Glu, Tyr and Asp formed 55% of total amino acids in stipe. On the other hand, Cys was not detected and Met content showed the lowest value under 0.3%. 3) Pepsin-pancreatin digestibility and percentage of soluble nitrogen in total nitrogen in stipe showed about 50% and 30%, respectively. 4) Using stipe as silage-additives, fermentation quality of silage was good even though adding 5% of fresh material. 5) Drying stipe at 120 degrees C seemed to be the most effective treatment in shortening of drying hours and palatability of dairy cattle
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