Natural Diet of Two Commercial Crab Species, Portunus segnis (Forskål, 1775) and P. sanguinolentus (Herbst, 1783), in the Coastal Waters of Karachi
Shazia Rasheed,
Javed Mustaquim
Issue:
Volume 6, Issue 3, May 2018
Pages:
35-42
Received:
26 April 2018
Accepted:
17 May 2018
Published:
25 June 2018
Abstract: Stomach contents of 558 Portunus segnis (Forskål, 1775) and 426 P. sanguinolentus (Herbst, 1783), from coastal waters of Karachi were examined. Crabs were collected from Korangi Creek, Karachi from January 2004 to December 2005. The frequency of occurrence and points methods were used for the stomach contents analysis. Out of 558 P. segnis and 426 P. sanguinolentus, 254 (45.52%) and 227 (53.3%) crabs had empty stomach, respectively. Mollusca and Crustacea dominated the diet of both the species. According to points method Mollusca and Crustacea scored 67.28% and 53.8% points in P. segnis and P. sanguinolentus, respectively. When analyzed by frequency of occurrence method Mollusca and Crustacea occurred in 88.37% and 71.4% stomachs in P. segnis and P. sanguinolentus, respectively. Majority of the Mollusca eaten by P. segnis and P. sanguinolentus were small soft-shelled bivalves while Crustacea included mostly small crabs. Small fish, shrimps, polychaete worms, sponges, starfishes, brittle stars, bryozoans, and plant (algae) materials were also present in some stomachs in small quantity. Results of the present study suggest that the two crab species are opportunistic predator competing for food in the natural environment.
Abstract: Stomach contents of 558 Portunus segnis (Forskål, 1775) and 426 P. sanguinolentus (Herbst, 1783), from coastal waters of Karachi were examined. Crabs were collected from Korangi Creek, Karachi from January 2004 to December 2005. The frequency of occurrence and points methods were used for the stomach contents analysis. Out of 558 P. segnis and 426 ...
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The Epidemiological Survey and Analysis of Canine Babesiosis in Xi’an City, China
Wuren Ma,
Yunpeng Fan,
Feng Jie,
Lingyu Zhang,
Yuan Zhong,
Weimin Zhang,
Xiaoping Song
Issue:
Volume 6, Issue 3, May 2018
Pages:
43-50
Received:
8 July 2018
Accepted:
23 July 2018
Published:
21 August 2018
Abstract: The canine babesiosis is one of the major diseases that significantly harm to the dogs. In order to analyze the characteristics of babesiosis in dogs, and to explore the characteristics of blood changes in canine babesiosis in Xi’an city, 194 cases of canine babesiosis were diagnosed in the animal teaching hospital of the Northwest A&F University during January 2013 to December 2015. The results showed that autumn was the main season for canine babesiosis in Xi’an city, male dogs under 3 years old were the main pathogenic group, and Teddy dog is the most susceptible breed. In addition, the number of red blood cell, platelet, hematokrit, hemoglobin, eosinophil granulocyte and the concentration of calcium were decreased; the mean corpuscular volume, the number of white blood cell, the concentration of alkaline phosphatase, total bilirubin, urea nitrogen, phosphorus, alanine aminotransferase and aspartate aminotransferase was elevated. Moreover, the liver and kidney function was also destroyed in a certain degree. It indicated that the dogs suffered from severe anemia (regenerative anemia), accompanied by inflammatory reaction, which can cause the blood coagulation dysfunction, some drugs with protecting liver and kidney should be used in the process of treatment so as to improve the cure rate of this disease. These findings provided important reference information for the prevention and treatment of babesiosis.
Abstract: The canine babesiosis is one of the major diseases that significantly harm to the dogs. In order to analyze the characteristics of babesiosis in dogs, and to explore the characteristics of blood changes in canine babesiosis in Xi’an city, 194 cases of canine babesiosis were diagnosed in the animal teaching hospital of the Northwest A&F University d...
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