Under German law, federal ministries are responsible for preparing legislation, while federal states (Länder) are responsible for applying the legislation. The author describes the system, contrasting it with the situation in former East Germany, where preparation and application of legislation were controlled centrally. The author also describes the various inland water fisheries Acts and regu...

A number of recombinant inbred mouse strains (currently 48) have been developed from the strains A/J and C57BL/6J. These strains are likely to become an excellent probe in the study of genetic mechanisms underlying host resistance to infections and tumors.

By W. H. BLACK, senior animal husbandman, and R. L. HINER, assistant animal husbandman, Animal Husbandry Division, Bureau of Animal Industry; L. B. BTJRK, marketing specialist, Agricultural Marketing Service; LUCY M. ALEXANDER, associate specialist in foods, Foods and Nutrition Division, Bureau of Home Economics, United States Department of Agriculture, and C. V. WILSON, associate animal husban...

The goal of this study was to identify inbred rat strains that could serve as useful models for exploration of the genetic basis of aerobic endurance performance. Six rats of each gender from 11 different inbred strains were tested for 1) maximal running capacity on a treadmill and 2) isolated cardiac performance. Running performance was estimated from 1) duration of the run, 2) distance run, a...

background: serological diagnosis of toxoplasma gondii infection using crude antigens may not be more accurate. to increase the diagnostic potency of anti-gens, isolation of their immunogenic fractions could be useful. the current re-search adopted to obtain an affinity isolated fraction from rh strain using cnbr sepharose 4b column coupled with infected mice sera helping in detec-tion of igm a...

Tn studies by electron mic['oscopy the significance of capsules on M. leprae seems to have been overlooked, in part for teclm ical r easons and in part from lack of other cytolog ic and physiologic data as a basi for interpretation. Three studies of washed, intact leprosy bacilli (1.3. 7) fail ed to focus a ttention on the extracellular matrix , The diffi culty of visualizing such structures on...

Abstract Avian infectious bronchitis (IB) is a highly contagious disease caused by virus (IBV), coronavirus of domestic fowl. IB major concern in the poultry industry, causing worldwide economic losses through decreased egg production and quality increasing chicken's susceptibility for secondary bacterial infections, particularly Escherichia coli . In this study, anti‐IBV activity cathelicidins...