Control de progenies de tilapia roja (Oreochromis sp.) sin reversar en la etapa E2, mediante el empleo del chuy (Crenicichla sp.) como controlador biológico

In The Padmi Research Station, located in the parish of Los Encuentros, Yantzaza Canton province of Zamora Chinchipe, the amount of biomass produced and profitability we are evaluated using the Chuy (Crenicichla sp.) as biological control in two densities for the cultivation of red tilapia (Oreochromis sp.) without reversing. The research was designed randomized block consisting of three treatments and six repetitions, considering that each half is a repeat; the treatments were used E2T10 where 200 Tilapia with 10 Chuy Rojas, Rojas E2T20 using 200 Tilapia with 20 Chuy and witness E2T used where only 200 Tilapias Rojas; the following results to the sixth half of the experiment, for increased weight if there was statistical difference and the treatment was the best increase was E2T10 with 21.06 grams and feed conversion there was no statistical difference, the treatment that best result Numerical feed conversion had is the E2T10 with 1.30. In the control progeny not present shoals of tilapia fry was observed in E2T10 treatments and E2T20 treatments, there control over them in treatment, while in the treatment E2T, 4300 Youth tilapia captured after finishing work field. In the economic profitability the most profitable treatment was E2T10, followed by treatment E2T20 and ultimately the E2T treatment.

• المؤلف الرئيسي: Procel Jiménez, Gina Elizabeth (author)
• التنسيق: bachelorThesis
• اللغة: spa
• منشور في: 2015
• الموضوعات: TILAPIA ROJA; CHUY; CRENICICHLA SP; OREOCHROMIS SP.
• الوصول للمادة أونلاين: http://dspace.unl.edu.ec/jspui/handle/123456789/11182