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Toxicological assessment of dietary exposure of polyethylene microplastics on growth, nutrient digestibility, carcass and gut histology of Nile Tilapia (Oreochromis niloticus) fingerlings

Ecotoxicology 2024 15 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 60 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.

Syed Makhdoom Hussain, Muhammad Asim Mahmood, Syed Makhdoom Hussain, Syed Makhdoom Hussain, Syed Makhdoom Hussain, Syed Makhdoom Hussain, Syed Makhdoom Hussain, Pallab K. Sarker, Shafaqat Ali, Syed Makhdoom Hussain, Syed Makhdoom Hussain, Syed Makhdoom Hussain, Syed Makhdoom Hussain, Muhammad Arif, Syed Makhdoom Hussain, Shafaqat Ali, Shafaqat Ali, Pallab K. Sarker, Muhammad Arif, Nisar Ahmad, Muhammad Arif, Pallab K. Sarker, Shafaqat Ali, Shafaqat Ali, Shafaqat Ali, Pallab K. Sarker, Pallab K. Sarker, Shafaqat Ali, Muhammad Arif, Pallab K. Sarker, Shafaqat Ali, Shafaqat Ali, Shafaqat Ali, Muhammad Arif, Pallab K. Sarker, Pallab K. Sarker, Muhammad Arif, Shafaqat Ali, Pallab K. Sarker, Adan Naeem Adan Naeem Bilal Ahmad Paray, Muhammad Arif, Muhammad Arif, Nadia Nazish, Pallab K. Sarker, Muhammad Arif, Shafaqat Ali, Nadia Nazish, Bilal Ahmad Paray, Nadia Nazish, Muhammad Arif, Danish Riaz, Nadia Nazish, Shafaqat Ali, Nisar Ahmad, Pallab K. Sarker, Danish Riaz, Bilal Ahmad Paray, Adan Naeem Shafaqat Ali, Adan Naeem

Summary

Researchers fed Nile tilapia fish diets containing different amounts of polyethylene microplastics and found that higher levels significantly reduced growth, nutrient absorption, and body composition. Fish exposed to the highest microplastic concentration (10%) showed severe gut damage visible under a microscope. Since tilapia is widely farmed for human consumption, these findings raise concerns about microplastic contamination affecting both fish health and the safety of farmed seafood.

Polymers

LDPE PE

Models

Fish other

This study was conducted to ascertain the negative effects of dietary low-density polyethylene microplastics (LDPE-MPs) exposure on growth, nutrient digestibility, body composition and gut histology of Nile tilapia (Oreochromis niloticus). Six sunflower meal-based diets (protein 30.95%; fat 8.04%) were prepared; one was the control (0%) and five were incorporated with LDPE-MPs at levels of 2, 4, 6, 8 and 10% in sunflower meal-based diets. A total of eighteen experimental tanks, each with 15 fingerlings, were used in triplicates. Fish were fed at the rate of 5% biomass twice a day for 60 days. Results revealed that best values of growth, nutrient digestibility, body composition and gut histology were observed by control diet, while 10% exposure to LDPE-MPs significantly (P < 0.05) reduced weight gain (WG%, 85.04%), specific growth rate (SGR%, 0.68%), and increased FCR (3.92%). The findings showed that higher level of LDPE-MPs (10%) exposure in the diet of O. niloticus negatively affects nutrient digestibility. Furthermore, the results revealed that the higher concentration of LDPE-MPs (10%) had a detrimental impact on crude protein (11.92%) and crude fat (8.04%). A high number of histological lesions were seen in gut of fingerlings exposed to LDPE-MPs. Hence, LDPE-MPs potentially harm the aquatic health.

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