Juniper Publishers Journal of Dairy and Veterinary Sciences

  Journal of Dairy & Veterinary Sciences - Juniper Publishers Abstract Veterinary drugs are any substances applied to or administered to animals for their therapeutic, prophylactic and diagnostic purposes or modification of physiological function or behavior. They are used throughout the world and more than half of all medicines are prescribed, dispensed or sold improperly. In Ethiopia, also different studies revealed the improper utilization of drugs is common. The use of veterinary drugs in food-producing animals has the potential to generate residues in animal derived products and poses a health hazard to the consumer. The most likely reason for drug residues might be due to improper drug usage and failure to keep the withdrawal period. The residual amount ingested is in small amounts and not necessarily toxic. The major public health significances of drug residue are development of antimicrobial drug resistance, hypersensitivity reaction, carcinogenicity, mutagenicity, tera...

  Journal of Dairy & Veterinary Sciences - Juniper Publishers Abstract The temperature in a liquid nitrogen storage tank is critical to maintain the viability of bovine semen stored within the tank. The objective was to determine the relationship of the temperature gradient in the neck of a tank to the level of liquid nitrogen in the tank. Using an electronic thermometer, temperature was measured at three locations: a) 2 cm below the top of the neck, b) 7 cm below the top of the neck (and below the frost line), and c) 2 cm above the level of liquid nitrogen. Liquid nitrogen volume in the tank was incrementally decreased from 18 L to 6 L. The experiment was repeated twice, and temperatures at each location and nitrogen level were recorded four times. Data on the effect of liquid nitrogen level, location, and two-way interaction on the temperature gradient in the neck of the tank were analyzed using a general linear mixed model procedure. There was an effect of location and volum...