Abstract
With an aim of the development of shrimp farming, the study was carried out on the availability and
nutritive value of feed resources in the local markets, socio-economic aspects of shrimp farmers,
management practices in small-scale shrimp farms, and formulation of cost effective shrimp feed.
ng to its sustainability.
continuing to persist, shrimp farmers will have no option to stop or limit their shrimp farming and the
country will be in a risk of losing a potential foreign exchange earning sector in the near future. The
database on feed resources and shrimp farming practices developed through this study can be used by
ffoett foad formulotion
spot disease outbreak in their ghers and was the main cause of lower proint (23
intervention. The study indicates that disease has become the most burning and threatened issue for
bagda farming. The average annual income of shrimp farmers was a little higher than their annual
expenditure. which indicates they have a little for shrimp farming and their livelihood. If this situation
the of coefficients of Cobb-Douglas production function model indicates that one percent increase
seed and feed would increase the production by 0.7 and 0.3% for bagda and 0.2 and 0.2% for golda
farming respectively from the present shrimp production. About 95% bagda farmers reported white
ofit (22601 TL ho) in the
of 2170 kg/ha snail meat. For mixed shrımp farmıng, stocking density and reed appineation rate wen
18308 PL/ha and 995kg/ha respectively. Average shrimp production from bagda, golda and mixed
shrimp ghers were 124 kg/ha, 331 kg/ha and 125 kg/ha respectively, where golda production was
significantly higher (P<0.05) than bagda and mixed shrimp ghers. In input production relationship,
production and profit through growth trial at farmer's level. In Khulna district, bagda was cultured
with low density (13302 post larvae (PL)/ha and without feeding. In case of golda farming, stocking
density was 19361PL/ha where 1824 kg/ha supplementary feed were applied with occasional addition Lfoad onliootion ro
the cheapest among available commercial shrimp feeds, followed by Niribilh Shrimp Feed (Growe
2.2) in terms of cost per kg protein. Shrimp feed formulated with fishmeal, rice polish, meat and bone
meal, mustard oil cake, soybean oil cake and wheat flour in the present study was nutritionally
equivalent (28% nrotein) but 1/3 cheaner than the commercial shrimp feed and yielded higher
study area. There were commercial pelleted shrimp feeds available in most of the local markets
golda farming upazilas, the retail price of which ranged from 18 to 20 Tk./kg with crude protein
content ranging from 19 to 29%. Saudi-Bangla Shrimp Feed (Grower 1.8, special and Grower) were
of
respectively. Nutritive value of locally produced fishmeal generally was of poor quality. Generally
significant (P>0.05) seasonal variation of protein content of feedstuffs was not observed except
chewya fishmeal, soybean oil cake, sesame oil cake and wheat bran. The imported meat & bone meal
and protein concentrates were ayailable and servedl as good source of protein for shrimp feed in the
Tisnmeal, wneat
and soybean oil cake in 2003. Crude protein content of chewya fishmeal, vati fishmeal, miscellaneous
fishmeal, mustard oil cake, sesame oil cake, coconut oil cake, rice polish, wheat bran and soybean
cake ranged between 38-61, 25-67, 18-65, 30-38, 23-33, 14-21, 10-17, 13-19 and 40-53%
oil
sesame oil cake, coconut oil cake, rice polish, wheat bran and soybean oil cake ranged between 25-40,
15-35, 12-35, 8-14, 8-13, 7-13, 5-9, 7-12 and 11-20 Tk./kg respectively in the study period. The price
feed ingredients was observed to vary seasonally and within the markets for miscellaneous
oil cake coconut oil cake. wheat bran
of
fiahmool whont bran and soyhean oil cake in 2002 and mustard
cakes, rice and wheat by-products are ofmy usep mng as ran-made leeu.
commonly used feedstuffs were generally available throughout the year in all golda farming upazilas
while it was less available in bagda farming upazilas. The price of commonly available indigenous
feed ingredients such as chewya fishmeal, vati fishmeal, miscellaneous fishmeal, mustard oil cake,
A
Freshwater prawn, golda (Macrobrachium rosenbergii) is farmed in northern upazilas (sub-district) of
Khulna district and brackishwater shrimp, bagda (Penaeus monodon) in the southern upazilas.
small number of shrimp farmers cultured golda and bagda mixed in the same farm. Fishmeal, oil
amonlu uood in ohrimp farming o farm mode faed Tha