September 2011
Effect of ethanol and sialidase activities on the developing kidney of Wistar rats
The use of ethanol is widespread and its adverse effects have been documented. This study was to investigate the histological changes and sialic acid levels of the developing kidney as a result of oral administration of ethanol for thirty days. Twenty five adult Wistar rats, between 170 and 200 g in weight divided into five groups of five rats each were used for this study. 0.18 to 0.19 ml, 0.17 to 0.20 ml, 0.17 to...
September 2011
Impact of glutamine on glutathione peroxidase activity (GPX) and total antioxidant status (TAS) during transition period in Holstein dairy cows
The objectives of this study were to investigate whether or not consumption of protected glutamine during transition period would affect biomarkers of oxidative stress and milk production. 36 pregnant Holstein dairy cattle were chosen according to body condition score (BCS) and their parity, after which they were classified into two groups with regards to their expecting calving and parity. Group B received...
September 2011
The effect of nicotine on the serum level of insulin in adult male Wistar rats
Nicotine is an alkaloid used by millions of people worldwide through cigarette smoking and has adverse effects on every organ and particularly on the endocrine system. Also, millions of humans suffer from diabetes due to either insulin deficiency or insulin resistance. The present study reports the effects of nicotine on the serum level of insulin in adult male Wistar rats. In this empirical research work, we used 50...
September 2011
Changes of stress indicators during surgery of female Persian sturgeon [Acipenser persicus, (Borodin, 1897)]
Understanding of the stress responses in fish may help to improve management, production, and animal welfare. To determine the threshold levels of stress responses in Persian sturgeon, Acipenser persicus, the main indicators of stress (cortisol and glucose) were measured during surgery operation. For this purpose, five blood samples were collected as follow: four samples with 15 min intervals during 45 min...
September 2011
Somatic cell count, total bacterial count and acidity properties of milk in Khartoum State, Sudan
This work was conducted in Khartoum State to study the limits of the somatic cell count (SCC), the total bacteria count (TBC) and the acidity of the raw cow milk produced in the three geographical areas of the Khartoum State. A total of 644 stratified random raw milk samples were collected during summer and winter. The different counts and acidity were evaluated in the farm milk and compared to that sold in the market....
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