| 3-o-acetyl-narcissidine, a bioactive alkaloid from hippeastrum puniceum lam. (amaryllidaceae). | in the context of the study on plant defensive compounds we have isolated the main alkaloid from hippeastrum puniceum (amaryllidaceae), 3-o-acetyl-narcissidine (1), and its biological activities tested against two divergent insect species and several plant species. 1 was isolated from the bioactive alkaloidal fraction of h. puniceum. its chemical structure was established by spectroscopic analysis. the biological activity tests showed that 1 is an antifeedant against the polyphagous insect spodo ... | 2008 | 19040099 |
| seasonal variations in the crop contents of scavenging helmeted guinea fowls (numida meleagris, l.) in parakou (benin). | 1. an experiment was carried out with 120 helmeted guinea fowls during one year in parakou (benin). feed intake, ingredient and chemical composition, along with the nutritional adequacy of scavenging diets were measured during the rainy season (november-february) and dry season (march-october) in order to propose supplementation strategies. ingredients found in crops were identified and allocated into 6 main categories (supplemental feed, seeds, green forages, animal materials, mineral matter an ... | 2008 | 19093249 |