Abstract:
The present study was carried out at the Biochemistry laboratory and Mushroom
Culture House (MCH) of Department of Biochemistry, Sher-e-Bangla Agricultural
University, Dhaka, during the month of February to July’09 to determine the effect
of different levels of cow dung as supplement with sawdust on the performance of
oyster mushroom. All the treatments perform better over control. Mycelium
running rate in spawn packet and highest average number of primordia/packet was
found to be differed due to different levels of supplements used. The highest
average weight of individual fruiting body was observed in sawdust supplemented
with cow dung @ 10% (3.69 g). The supplementation of sawdust with cow dung
had great effect on biological yield, economic yield and Dry yield, biological
efficiency, cost benefit ratio. The highest biological yield (254.7 g), economic
yield (243.3 g) and Dry yield (23.40 g) biological efficiency (87.82%), cost benefit
ratio (8.29) was counted under sawdust supplemented with cow dung @ 10%.
Among the chemical characteristics highest content of protein, ash, crud fiber
(24.07) was found in treatment T
4
, on the other hand lowest lipid (3.90 %) and
carbohydrate (32.57) percentage was counted under treatment T
. Among the
minerals highest amount of nitrogen (4.85), potassium (1.39), calcium (22.08),
magnesium (20.21), sulfur (0.042), iron (43.11) and lowest phosphorus (0.92) was
counted under sawdust supplemented with cow dung @ 10%. There fore it can be
concluded that cow dung @ 10% with saw dust may be an alternative supplement
to produce oyster mushroom for better cost benefit management.
Description:
A Thesis
Submitted to the Faculty of Agriculture,
Sher-e-Bangla Agricultural University,
in partial fulfillment of the requirements for the degree of
MASTER OF SCIENCE (M.S.)
IN
BIOCHEMISTRY
SEMESTER: July-December’08
