A Case Study on Feed Management to Improving Production and Economic Returns for the Semi-Intensive Pond Production of Litopenaeus vannamei
Palabras clave:Shrimp, Feed management, semi-intensive
Feed represent one of the primary costs associated with the production of shrimp under semi-intensive and intensive
conditions. The feed is also the initial source of pollutants; hence, overfeeding or poor quality feeds can severely
impact water quality and production. In order to improve production of shrimp under semi-intensive conditions and
reduce waste outputs it is critical to optimize feed allowance and to develop appropriate feeding management plans.
Despite the importance of feed management from both economic and environmental perspectives, there is relatively
little scientific information regarding feed management. It is also quite interesting to note that almost all
management set points (e.g. poor growth, or good growth) result in increases in feed input and that most often one
of the lowest payed employee is responsible for the proper application of the most costly component of shrimp
culture, (i.e. the feed). Over the last six years, research at the Claude Petite Mariculture Center has been conducted
using standardized operational protocols (35 shrimp/meter, 10 hp/ha of base aeration, limited water exchange) while
achieving a systematic improvement in feed management. This paper discusses from a historical perspective the
systematic improvement in feed management that have allowed us to improve feed utilization and total production
from typical feed conversion ratios (FCR, feed inputs per unit of shrimp harvested) of around 2:1 to 1.2-1.4:1 with
increases in overall production from around 4,000 kg/ha to 6,000kg/ha. These improvement in FCR have resulted
in significant reductions in feed costs and subsequent improvement on the return on investment.
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