Animal wastes are generated worldwide in a huge amount. Disposal of this bulk waste is a global environmental problem accounting to pollution of soil and ground water sources. Because of these wastes are nutritionally rich, so these can be used as supplements in the mushroom industry. In present study, few wastes viz., Chicken feather (CF), Fish scale (FS) and Sheep hair (SH) were evaluated as supplement @15% on dry weight basis of substrate for enhancing yield and biological efficiency of Elm Oyster Mushroom Hypsizygus ulmarius. Wheat straw (WS) was used as a growing medium. All the animal wastes were autoclaves at 15 lbs for 60 min while wheat straw was pasteurized in the solution of Formaldehyde (500 ppm) and Bavistin (75 ppm) for 18 hours. The measured parameters were net yield (Weight of fresh mushrooms), biological efficiency and number of fruiting bodies produced varied among themselves. All the supplemented sets except FS+WS showed early mycelial colonization, primordial development and fruit bodies maturation than control which ranged from 14-18 days, 17-19 days and 21-23 days, respectively. The fish scale containing sets could not show even the mycelial initiation from the spawn. Among the animal wastes used, only the set with Chicken feather produced significantly higher yield and biological efficiency (618.67 gm, 123.61 %) of mushroom than the control (548 gm, 109.6%). It also produced significant number of mushroom fruit bodies (41). The percentage yield of different wastes was also evaluated. In comparison to non-supplemented sets (31.84%), chicken feather contributed 35.95% of total mushroom production followed by sheep wool (32.19%). Chicken feather also showed highest percentage yield increase (+12.89) over control. (PDF)

Cited this as: 

     Siddhant, P.O. Ukaogo and Mahesh Kumar (2021): Supplementation of animal wastes and its impact on yield of elm oyster mushroom Hypsizygus ulmarius. International Marmara Scientific Research and Innovation Congress, Istanbul. August 21-22, 2021. p. 577.