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Impact of copper stress in the intestinal barriers and gut microbiota of Chinese stripe-necked turtle (Mauremys sinensis).
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Ministry of Education Key Laboratory for Ecology of Tropical Islands, Key Laboratory of Tropical Animal and Plant Ecology of Hainan Province, College of Life Sciences, Hainan Normal University, Haikou 571158, China. Electronic address:
Copper is used to treat algal blooms, macrophyte infestations and other environmental issues, but its rising ambient levels harm aquatic animals, especially their intestines. However, its impact on turtles' digestive health is not well understood, and the risks are unclear. This study investigates the effects of copper on the intestinal health of Chinese stripe-necked turtle, focusing on histomorphology, mucosal barrier function, gene expression, and gut microbiota.
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Nutrition and Animal-Microbiota Ecosystems Laboratory, Department of Biosystems, KU Leuven 3000, Heverlee, Belgium. Electronic address:
An alternative hatching system known as hatch on-farm (HOF) provides early access to feed compared to hatch in hatchery (HH) system. Early feeding may promote favorable gut development, potentially improving intestinal health and broiler performance. Previous studies have assessed the effects of HOF on chick quality, welfare and performance, its impacts on gut health remain inconclusive.
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Department of Anatomy, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, Karnataka 576104, India. Electronic address:
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Department of Medical Genetics, Faculty of Pharmacy, Medical University, 5800 Pleven, Bulgaria.
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Department of Medicine and Technological Innovation, University of Insubria, Varese, Italy.
Article Synopsis
- This study examines how the growth and calcification of the appendicular skeleton in the Raja asterias affects its movement in water, highlighting the link between bone structure and fin mechanics.
- It identifies two growth patterns—crustal in larger skeletal parts and catenated in fin radials—showing how differences in development can influence fin flexibility and locomotion.
- The results suggest that unique calcification patterns, especially in the pelvic fins, evolve to meet the mechanical needs of swimming, emphasizing the adaptability of Batoidea fins through their joint structures and specialized designs.
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