objectives: nowadays, a lot of attention has been paid to the therapeutic properties of herbs, including evaluation of the effects of these plants on fertility in laboratory animals. apium graveolens l. (celery) has been widely used in traditional medicine for treatment of various disorders including impotency. therefore, this study was designed to investigate the effects of aqueous extract of ...

Wilhelm Boland Institut für Organische Chemie und Biochemie, Universität Bonn, D-53121 Bonn. Bundesrepublik Deutschland Z. Naturforsch. 49c, 601-606 (1994); received March 7/May 17, 1994 Laminaria, Phaeophyceae, Pheromone Receptor Specificity, Structure-Activity Relationship The pheromone receptor specificity and threshold concentrations have been determined for spermatozoid chemotaxis in Lamin...

the hypothesis of this experiment was that the various sources of dietary fat with different dietary ratios of polyunsaturated fatty acids (pufas) to saturated fatty acids (sfas) would alter the reproduction parameters of mature rams. twelve mature rams were randomly allotted to one of four dietary treatments in a completely randomized design. dietary treatments were: 1) ration with 4% soybean ...

A linkage map of 40 linkage groups (LGs) was developed for brook charr, Salvelinus fontinalis, using an F(2) interstrain hybrid progeny (n = 171) and 256 coding gene SNP developed specifically for brook charr and validated from a large (>1000) subset of putative SNP, as well as 81 microsatellite markers. To identify quantitative trait loci (QTL) related to reproduction functions, these fish wer...

Salient features of structure of the spermatozoid of a fern (Pteridium aquilinum) have been determined by a combination of visual and ultraviolet microscopy, with electron microscopy of shadow-cast whole mounts and thin sections, using magnifications up to but not exceeding 50,000 diameters. Attention has been concentrated on the arrangement rather than on the internal details of the various pa...