Hormones

Bangladesh has recently achieved remarkable success in freshwater fish production, with more than 1.25 million metric tons of freshwater fish produced in ...

A review on the use of hormones in fish farming: Analytical methods to determine their residues. Induced Breeding Practices of the Freshwater Fish Hatcheries in Bangladesh. Many fish farmers in the study areas reported the indiscriminate use of chemicals. Induced breeding is a process where the fish, which do not breed in stagnant water bodies, will do so under the influence of stimulants or hormones injected into their bodies. Hormones in aquaculture are used for artificial reproduction and sex reversal. Bangladesh has witnessed rapid industrial growth in recent years, with 6,000 large and medium industries and 24,000 small ones. The research said there was a potential ecological risk due to the residues of antibiotics too. In 2020-2021, the Those are also used to improve water quality and increase the productivity of fish culture ponds or act as growth promoters. These wastes contain toxic chemicals and heavy metals like lead, mercury, cadmium, zinc, copper, chromium, iron and manganese. [2021 survey](https://doi.org/10.3390/su142417038), conducted via face-to-face interviews with fish farmers in Rajshahi district of Bangladesh, found that farmers used nine active antibiotic ingredients in finfish rearing. “Of course, antibiotics have harmful impacts.