Effects of biofloc technology on reproduction and ovarian recrudescence in Nile tilapia

被引：14

作者：

de Alvarenga, Erika Ramos ^{[1
]}

Moreira de Sales, Suellen Cristina ^{[1
]}

de Brito, Tulio Soares ^{[1
]}

Santos, Claudia Regina ^{[1
]}

Serafim Correa, Rebeca Dias ^{[1
]}

de Oliveira Alves, Gabriel Francisco ^{[1
]}

Manduca, Ludson Guimaraes ^{[1
]}

Turra, Eduardo Maldonado ^{[1
]}

机构：

[1] Univ Fed Minas Gerais, Escola Vet, Lab Aquacultura LAQUA, Belo Horizonte, MG, Brazil

来源：

AQUACULTURE RESEARCH | 2017年 / 48卷 / 12期

关键词：

biofloc technology; Oreochromis niloticus; ovary morphometry; post-spawn period; OREOCHROMIS-NILOTICUS BROODFISH; SPAWNING PERFORMANCE; BROODSTOCK; QUALITY; FECUNDITY; NITROGEN; REMOVAL; DENSITY; GROWTH; L;

D O I：

10.1111/are.13420

中图分类号：

S9 [水产、渔业];

学科分类号：

0908 ;

摘要：

The objectives of this study were to evaluate the reproductive cycle, morphological changes of ovary and mobilization of energy reserves in Nile tilapia reared with biofloc technology (BFT). In general, the growth and reproductive performance were highly similar between BFT and Control system (clear water). Difference between the systems was found in the hepatosomatic index (using mixed-effects models), which suggested that BFT can alter the energy mobilization in the post-spawning period. The absolute and relative fecundity, fertilization rate, number of larvae produced per female, gonadosomatic index, proportion of oogenesis cells, number of post-ovulatory and atretic follicles were similar between the two systems. We also did not detect a reduction in the reproductive cycle length in Nile tilapia reared in BFT. Because there was no evidence of the negative effects of BFT on Nile tilapia reproduction, we concluded that BFT might be used for breeder stocking of this species.

引用

页码：5965 / 5972

页数：8

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