An overview is presented of recent studies on intestinal bacterial flora and the current state of probiotics (viable bacteria preparations) developed for use in domestic animals in Japan. They belong to two major categories, namely, veterinary drugs for treating gastro-intestinal disorders (such as diarrhoea), and feed probiotics to improve weight gain and feed efficiency, and also to maintain ...

three iranian native strains and three japanese commercial lines of the silkworm bombyx mori were analyzed using amplified fragment length polymorphism (aflp) markers. a set of ten psti/taqi primer combinations amplified a total of 322 bands out of which 251 (%78) were polymorphic. estimates of nei’s gene diversity for all loci in individual strains and commercial lines indicated a higher degre...

Postpartum dam performance was studied in a complete diallel design involving five lines of mice. The selection criterion in each line was: large litter size at birth (L+); large 6-wk body weight (W+); an index for large litter size and small 6-wk body weight (L+W-); the complementary index (L-W+) and random (K). Females from the five lines and 20 reciprocal F1 crosses were mated to sires of a ...