Engorde de cangrejo rojo ucides occidentalis en corrales a diferentes densidades

The present work one carries out in the island Costa Rica, belonging to the canton Santa. Rosa, county The Gold. You uses twelve corrals of eight m2, in a rectangular way. These were built with mesh and mangrove stakes and covered the whole superior contour of the corral with zinc. The density of three crab / m2 was significantly better than the other densities that had five, seven nine crabs / m2 respectively. The weight was statistically better in the Treatment One that corresponds three crabs / m2. In the final weight I am better in the treatment one that corresponds three crabs / m2. The final height is better the treatment four that corresponds nine crabs / m2. In the final width the treatment one went better than it corresponds three crabs / m2. The survival was of ninety three% and a mortality seven% of a total of five hundred seventy six sowed crabs. The salinity that was sowed went from twenty-eight ppt to the beginning of the investigation and after six months of cultivation the reading stayed in trenita ppt, for the rising thing it is a species that presents an easy adaptability and development in these cultivation types. The Cost of production of the crab is of twenty-three cents of dollar. The gross entrance for each crab is of twenty seven cents of dollar. Of each dollar invested in the upbringing of the crab a benefit it is obtained of $2,16. The utility that is perceived by the upbringing of the crabs in the lapse of six months is of $144.

• Glavni autor: Escobar Astudillo, Oscar Rolando (author)
• Format: bachelorThesis
• Jezik: spa
• Izdano: 2008
• Teme: ENGORDE; CANGREJO ROJO; CORRALES; DIFERENTES DENSIDADES
• Online pristup: http://repositorio.utmachala.edu.ec/handle/48000/1713