Twelve adult animals of both goats and sheep were used in this study.The segments of oesophagus from the anterior 3 rd (cervical part) were taken from six samples of goats and six samples of sheep. The segments of 0.5cm were processed by histological techniques which were stained by haematoxylin and eosin and examined under light microscope. The results of this examination revealed that, both species of animals had the for layers which were the tunica mucosa, submucosa, muscularis and adventitia, the mucosa had stratified squamous epithelium with variable amount of keratin on its surface, the lamina properia was formed by dense connective tissue with the presence of thin zone of muscularis mucosa, while in sheep the keratin on the surface of epithelium was more and the lamina properia was thinner than goat, but the muscularis mucosa was formed by masses of smooth muscle fibers more than goat. The sub mucosa was more condensed with connective tissue in goat than sheep with the presence of medium and small sized blood vessels. In this layer in both animals. The tunica muscularis of both were formed by skeletal muscle fibers, in goat were arranged into three directions which were inner circular, middle oblique and outer longitudinal, while in sheep was found as inner circular and outer longitudinal. finally, both animals were containing outer layer of loose connective tissue called tunica adventitia and in sheep had more fat cells invaded this layer with blood vessels, fat cells and nerves.
Twelve adult animals of both goats and sheep were used in this study. The segments of oesophagus from the anterior 3rd (cervical part) were taken from six samples of goats and six samples of sheep. The segments of 0.5cm were processed by histological techniques which were stained by haematoxylin and eosin and examined under light microscope. The results of this examination revealed that, both species of animals had the for layers which were the tunica mucosa, submucosa, muscularis and adventitia, the mucosa had stratified squamous epithelium with variable amount of keratin on its surface, the lamina properia was formed by dense connective tissue with the presence of thin zone of muscularis mucosa, while in sheep the keratin on the surface of epithelium was more and the lamina properia was thinner than goat, but the muscularis mucosa was formed by masses of smooth muscle fibers more than goat. The sub mucosa was more condensed with connective tissue in goat than sheep with the presence of medium and small sized blood vessels. In this layer in both animals. The tunica muscularis of both were formed by skeletal muscle fibers, in goat were arranged into three directions which were inner circular, middle oblique and outer longitudinal, while in sheep was found as inner circular and outer longitudinal. finally, both animals were containing outer layer of loose connective tissue called tunica adventitia and in sheep had more fat cells invaded this layer with blood vessels, fat cells and nerves.
Research has been designed to focusing and evaluation the effect of cypermethrin as insecticide material in the skin of the rabbits. Cypermethrin was applied on the skin after shaving the dorso-lateral aspect of rabbits .The animals (12) were classified into four groups (A, B, C and D), three animals per group. Groups (B, C and D) were exposed to cypermethrin at doses (0.001, 0.005, 0.010)mg/kg respectively, while (A) was a control group. After ten days of drug's application, animals of group (D) were died at ending of the study because they received heavy dose. The groups (B and C) shown excitation signs, followed by inhibition and depression of their activity. The animals of groups (A, B and C) were scarified and a specimens (0.5) cm3 of skin from the dorso- lateral aspect were obtained, washed with water and put in formalin (10)% then processed after (24) hours by using histological technique, sectioned at (5)µm thickness, stained with Hematoxylin and Eosin a then examined under light microscopic at different powers. http://dx.doi.org/10.25130/tjps.25.2020.022
This study aimed to isolate and diagnose the bacterial pathogens that causes pneumonia in sheep, study the biochemical and histopathological changes in lung tissue of infected animals and determining the most effective types of antibiotics for treating sheep diseased with pneumonia. 150 samples (50 nasal swabs, 50 tracheal samples, 50 lungs samples from slaughtered sheep) were collected randomly from different areas of Salah Aldeen governorate during the period (September 2019 till January 2020) . The results showed that no significant differences in the values between positive and negative results from nasal, tracheal and infected lungs at a probability level P< 0.05. And showed that Staphylococcus aureus and Klebsiella pneumonia are two main bacterial causes of pneumonia in sheep . In macroscopic examination the prominent lesion in most lung samples was congestion and presence of emphysema with an expansion of the bronchitis and found that the most common type of pneumonia infection is broncho pneumonia. All the isolated bacterial species; however, show sensitivity to the antibiotics chloramphenicol and trimethoprim + sulfamethoxazole except Pasteurella Spp., that it shows resistance to trimethoprim+ sulfamethoxazole.
Research has been designed to focusing and evaluation the effect of cypermethrin as insecticide material in the skin of the rabbits. Cypermethrin was applied on the skin after shaving the dorso-lateral aspect of rabbits .The animals (12) were classified into four groups (A, B, C and D), three animals per group. Groups (B, C and D) were exposed to cypermethrin at doses (0.001, 0.005, 0.010)mg/kg respectively, while (A) was a control group. After ten days of drug's application, animals of group (D) were died at ending of the study because they received heavy dose. The groups (B and C) shown excitation signs, followed by inhibition and depression of their activity. The animals of groups (A, B and C) were scarified and a specimens (0.5) cm3 of skin from the dorso- lateral aspect were obtained, washed with water and put in formalin (10)% then processed after (24) hours by using histological technique, sectioned at (5)µm thickness, stained with Hematoxylin and Eosin a then examined under light microscopic at different powers.
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