A simple technique to identify nile tilapia females (Oreochromis niloticus) incubating eggs orally

Ciência Rural

Afonso, Luís Orlando Bertolla¹  Rotta, Marco Aurélio¹ 

[1] Universidade Federal do Rio Grande do Sul

关键词: /font> spawning;    stress;    sexual identification;    mirror;    crystalline water;   

DOI  :  10.1590/S0103-84782001000300028

学科分类：农业科学（综合）

来源: Universidade Federal de Santa Maria * Centro de Ciencias Rurais

【 摘 要 】

In aquaculture laboratories which work with Nile tilapia (Oreochromis niloticus) reproduction and use crystalline water, is frequently necessary to verify whether the females are incubating orally the eggs. The identification of the females when there is not know-how is difficult and slow, and in most cases is stressful and damage the eggs. This study describes a simple technique, using a mirror, to identify Nile tilapia incubating eggs orally in crystalline water. The results showed that is possible to identify the females which are incubating orally with 100% efficiency.

【 授权许可】

CC BY-NC