Colour marking of small fish with a marking stand for Dermojet.

We designed a marking stand for the Dermojet , which substantially improves fish marking via needleless subcutaneous injection of dye. The marking stand allows to increase the nozzle-to-fish distance, adjust this position and to keep the jet injector fixed during operation as well as dye refilling. A laser pointer enables a precise and small-scale aiming.

Protective effect of the new calcium antagonist anipamil against isoprenaline-induced cardionecrosis in rats.

The new calcium antagonist anipamil (1,7-bis-(3-methoxyphenyl)-3-methylaza-7-cyano-nonadecane) exhibited a pronounced protective effect against isoprenaline-induced myocardial necrosis in rats. Anipamil was administered in single doses of 10 or 20 mg/kg daily for 4 days. 30 mg/kg isoprenaline was given by subcutaneous injection on the 3rd and 4th days of the study.

Post-mating non-infectious hydrometra in BALB/c: Bom mice.

Post-mating non-infectious hydrometra and hydrovagina of unknown aetiology, leading to a scrotum-like swelling of the perineum, was observed during an experiment on BALB/c: Bom mice. There was a closure of the vulva with accumulation of secretions of uterine glands under high pressure in both uterus and vagina. The mice were otherwise clinically healthy, gained body weight normally, but were incapable of breeding.

[Development of volatile compounds from radicals arising during intermediate steps of the lipoxygenase-reaction (author's transl)].

The development of volatile compounds arising from radicals during intermediate reaction steps of the lipoxygenase-linoleic-acid-reaction (from soy) was investigated in model experiments with defined conditions. The results indicate as follows: Among the volatile compounds formed, hexanal has a special position. Its development is closely connected to the enzymatic formation of the 13-linoleic-acid-hydroperoxide because it is formed from the 13-linoleic-acid-peroxy-radical, which is a direct precursor of the 13-linoleic-acid-hydroperoxide.