Medicine and Health Sciences Commons^™

Assessment Of Trichostrongyles Resistance Against Anthelmintics Commonly Used In Sheep Reared In Dakahlia Governorate, Egypt, Mahmoud R. Saleh, Ibrahim Abbas, Moustafa Al-Araby, Salah Abu-Elwafa

Mansoura Veterinary Medical Journal

Objective: To investigate, for the first time, the anthelmintic resistance of different trichostrongle-infecting sheep in the Dakahlia governorate, Egypt.

Design: Randomized controlled study.

Animals: 820 sheep were reared within 10 free-grazing herds with infrequent deworming practices.

Procedures: Fresh fecal samples were collected, and their floats were examined for trichostrongyle eggs, which were then identified using fecal cultures and/or ITS2-PCR amplification. Sheep (n=500) whose samples had egg counts ≥ 150 eggs per gram (EPG) of feces were selected and divided in each herd into five equal groups; each group received one of the tested anthelmintics, including albendazole (5 mg/kg BW), levamisole …

Investigation Of Nile Tilapia Mortalities During Summer 2019 In El-Manzala Fish Farms In Dakahlia Governorate, Egypt, Amira M. M. El- Sherbiny, Moustafa M. S. Fouda, Medhat S. Shakweer, Viola H. Zaki

Mansoura Veterinary Medical Journal

Objective: To identify suspected causes of mass mortality in Oreochromis niloticus at El-Manzala fish farms in Dakahlia Governorate, Egypt, during disease outbreaks in the summer of 2019.

Design: Observational study.

Animals: Two hundred diseased and freshly dead Oreochromis niloticus (Nile tilapia) weighting 100-150 g.

Procedures: Collected fish samples were subjected to clinical, postmortem and bacteriological investigations regarding histopathological alterations, pathogenicity tests, and antibiogram susceptibility of the main isolated bacterial species.

Results: A total of 286 bacterial isolates were detected from all examined fish samples. Bacteriological examination revealed that all bacteria were gram-negative rods, which were identified as A. hydrophila (43.36%), …

Pathological, Ultrastructural And Haematological Studies On The Simultaneous Effect Of Dietary Supplementation With Lauric And Benzoic Acids On Nile Tilapia, Abdelaziz M. Rabea, Iman Ibrahim, Hebatallah A. Mahgoub, Ahmed El- Shaieb

Mansoura Veterinary Medical Journal

Objective: To evaluate the simultaneous effect of dietary acidifier lauric and benzoic acids on immunohematological parameters and histopathological changes in O. niloticus.

Design: Randomized controlled study.

Animal Models: The experiment was performed on 120 juvenile Nile tilapia weighing (50 ± 6.14 g).

Procedures: Fish were divided into four experimental groups (30 fish/group): Control group received normal diet; Benzoic Acid group was supplemented with benzoic acid 1 g/kg diet); Lauric Acid group was supplemented with lauric acid (1 g/kg diet); combination group was supplemented with benzoic acid (1 g/kg diet) and lauric acid (1 g/kg diet). Supplements were applied for 30 …