Tilapia sex organ

As for most fish, male and female tilapia look the same. The female lays eggs while the male fertilizes them, and this is a clue about how to tell them apart. Under the fish near the tail, there are several openings that are different in males and in females. This difference is used by fish farmers to identify the male fish, which they prefer because those fish grow bigger. Other differences between males and females are in the internal organs and the behavior after spawning.
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How to Sex Tilapia

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Difference Between Male & Female Tilapia | Sciencing

Skip to search form Skip to main content. Seale and Darren T. Lerner and Gordon E. The heat-treated fish were then cultivated at a normal water temperature for over six months. ResultsThe testes of all individuals heat-treated for 50 days were sterile. View on Springer.
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How to Determine the Sex of Your Fish

Fish reproductive organs include testes and ovaries. In most species, gonads are paired organs of similar size, which can be partially or totally fused. The genital papilla is a small, fleshy tube behind the anus in some fishes, from which the sperm or eggs are released; the sex of a fish often can be determined by the shape of its papilla.
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