Resumen

TERRONES ESPANA, Shirley  y  REYES AVALOS, Walter. Effect of diets with biological silage of mollusk residues on the growth of shrimp Cryphiops caementarius and tilapia Oreochromis niloticus in intensive co-culture. Scientia Agropecuaria [online]. 2018, vol.9, n.2, pp.167-176. ISSN 2077-9917.  http://dx.doi.org/10.17268/sci.agropecu.2018.02.01.

The aim was to evaluate the effect of diets with biological silage of mollusk residues on the growth of shrimp Cryphiops caementarius and Oreochromis niloticus tilapia in intensive co-culture. Seventy-two male shrimp (5.16 ± 0.37 cm total length and 4.78 ± 1.13 g wet weight) and 48 reversed tilapia fry (4.28 ± 0.31 cm total length and 2.86 ± 0.45 g wet weight). Three experimental diets (25, 50 and 75% of silage) and a control diet were used, with three replicates. The silage was made from viscera and mantles of the mollusk Argopecten purpuratus. The co-culture was carried out in 12 aquariums (55 L) implemented with six individual shrimp culture containers (32 shrimp m-2), and the tilapia was stocked in the remaining water (22 tilapias m-2). The experiment lasted 90 days. Shrimp growth was similar between treatments. The growth of tilapia was greater with 25% and 50% silage. The FCA was low (1.5 to 1.7) in shrimp and high (1.9 to 2.1) in tilapia, up to 50% silage. Diet with 50% silage is recommended for shrimp males, although for tilapia it is suggested to try another diet.

Palabras clave : Biological silage; intensive culture; growth; shrimp; tilapia of the Nile.

        · resumen en Español     · texto en Español     · Español ( pdf )