Analysis of Fertilizer Effect in the Tilapia Growth of Mozambique (Oreochromis mossambicus)

Authors: Sérgio Afonso Mulema, Andrés Carrión García, Vicente Ernesto

Abstract:

This paper analyses the effect of fertilizer (organic and inorganic) in the growth of tilapia. An experiment was implemented in the Aquapesca Company of Mozambique; there were considered four different treatments. Each type of fertilizer was applied in two of these treatments; a feed was supplied to the third treatment, and the fourth was taken as control. The weight and length of the tilapia were used as the growth parameters, and to measure the water quality, the physical-chemical parameters were registered. The results show that the weight and length were different for tilapias cultivated in different treatments. These differences were evidenced mainly by organic and feed treatments, where there was the largest and smallest value of these parameters, respectively. In order to prove that these differences were caused only by applied treatment without interference for the aquatic environment, a Fisher discriminant analysis was applied, which confirmed that the treatments were exposed to the same environment condition.

Keywords: Fertilizer, tilapia, growth, statistical methods.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1315831

References:

[1] S. Alves and L. Mello, Manual para Monitoramento Hidrobiologico em Fazendas de cultivo de camar˜ao, Recife, 2007.
[2] A. Baillo and A., Gran´e, 100 Problemas resueltos de Estad´ıstica Multivariante implementados en Matlab, Delta Publicaiones, 2017.
[3] J. Ferr´e and F. X., Rius, Introducci´on al Dise˜no Estadistico de Experimentos, Departamento de Qu´ımica Anal´ıtica y Qu´ımica Org´anica Universitat Rovira i Virgili, 2002.
[4] W. G., Cochran and G. M., Cox, Experimental Designs, 1992.
[5] Nicovita, Manual de Cranza Til´apia, Dispon´ıvel em www.alicorp.com.pe,2002.
[6] M., Lagos, M., H´ector, D., Meyer and R.,Castillo, Comparaci´on de la sobrevivencia y crecimiento de dos l´ıneas de tilapia cultivadas bajo dos sistemas de manejo, Escuela Agr´ıcola Panamericana, Zamorano, 2000.
[7] FAO, Fertilizantes y fertilizaci´on, (http:/www.fao.org/fishery/ culturedspecies/Oreochromis-niloticus), 2016.
[8] R., Romero and L., Z´unica, M´etodos estad´ısticos para Ingenieros, Universidad Politecnica de Valencia, 2013.
[9] T., Martinez, Adaptaci´on y crecimiento de las tilapias Oreochromis niloticus, Oreochromis aureus, Oreochromis mossambicus x Oreochromis niloticus en agua salada, Universidad de Colima. Disponible en http:digeset.ucol.mx.tesis-posgrado.Pdf, 2003.
[10] A. G. J, Tacon, The nutrition end feeding of farmed fish and shrimp-a tranining manual.3. Feeding methods. FAO field Document. Project GCP/RLA/075/ITA/Field Document 7/E.FAO, Brasilia, Brazil. 208 p, 1988.