scholarly journals Effect of bioaccumulation and biosedimentation of some heavy metals on histological features in the cichlid fish, Tilapia zillii inhabiting Lake Qarun, Egypt.

2021 ◽  
Vol 25 (3) ◽  
pp. 695-711
Author(s):  
Ahmed Y. H. Elwasify et al.
Keyword(s):  
Heavy Metals ◽  
Cichlid Fish ◽  
Histological Features ◽  
Tilapia Zillii ◽  
Lake Qarun

scholarly journals Parental behavior and some histological features of scales in Cichlasoma citrinellum (Pisces, Cichlidae)

1973 ◽  
Vol 51 (6) ◽  
pp. 619-622 ◽  
Author(s):  
David L. G. Noakes
Keyword(s):  
Fish Species ◽  
Parental Behavior ◽  
Cichlid Fish ◽  
Epidermal Thickness ◽  
Histological Features ◽  
Epidermal Mucus ◽  
Mucus Cells ◽  
Possible Cause

Young Cichlasoma citrinellum contact parents preferentially, depending on sex and color of the parents. The number of epidermal mucus cells on adults' scales is positively correlated with the amount of contacting by the young. The epidermal thickness of these scales is negatively correlated with the amount of contacting. These correlations are discussed as possible cause–effect relationships with the contacting preferences of the young, and are compared to similar behavior in other cichlid fish species.

scholarly journals Effect of heavy metals on the ovary of Tilapia zillii in some canals of Nile Delta area, Egypt.

2019 ◽  
Vol 23 (3) ◽  
pp. 329-345
Author(s):  
Ahmad M. Azab ◽  
Mohamed A. Aly-Eldeen ◽  
Hassan M. M. Khalaf-Allah ◽  
Mohamed M. A. El-Battal
Keyword(s):  
Heavy Metals ◽  
Nile Delta ◽  
Delta Area ◽  
Tilapia Zillii

scholarly journals Histological Changes in the Liver and Biochemical Parameters of Chickens Treated with Lead Acetate II

2018 ◽  
Vol 12 (6) ◽  
pp. 1-5
Author(s):  
Milad Ashrafizadeh ◽  
◽  
Hossein Rafiei ◽  
Zahra Ahmadi ◽  
◽  
...  
Keyword(s):  
Heavy Metals ◽  
Lead Acetate ◽  
Biochemical Parameters ◽  
Liver Enzymes ◽  
Human Tissues ◽  
Histological Changes ◽  
Histological Features ◽  
Comprehensive Plan ◽  
Different Doses ◽  
Different Parts

Background: Lead is one of the heavy metals that is persists in the environment and has destructive effects on various human tissues. We investigated the effects of lead on the histological features of liver and its enzymatic functions. Methods: Forty chickens were purchased and randomly divided into four groups. In addition to the normal feed, each group received different doses of lead acetate II in the feed. After preparing microscopic slides, the level of liver enzymes was measured. Results: It was demonstrated that the level of liver enzymes increases and devastating effects on the liver structures occurred. Conclusion: In according to the adverse effects of lead on the liver and due to the increase use of this harmful agent in the different parts and its increase in the air, especially in Iran, there is a need for considering a comprehensive plan for preventing of more outbreak of this agents and inhibiting the toxic effects of it on the birds.

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