4 results for “viable eggs”

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Research ArticleOpen accessIn the keywordsAltered Reproduction in Clarias gariepinus Exposed to Industrial EffluentsAdeogun Aina Olubukola, Chukwuka Azubuike VictorProblem statement: Reproductive success is a key factor in determining species survival and the unregulated discharge of industrial effluents into rivers and streams in a developing country like Nigeria, can impair reproductive ability in non-target organisms like fish. Fish, generally accumulate contaminants from their environment in their tissues and these can be transmitted through the yolk lipids to the eggs. … …American Journal of Agricultural and Biological Sciences, Vol. 7, Issue 1 · 21 Feb 2012 · 7,706 accessesView PDF Cite

Research ArticleOpen accessIn the abstractOvocidal Effect of Achillea salicifolia and Hedysarum Gmelinii Extracts on Toxocara Cati Eggs in an in Vitro ExperimentLyudmila Lider, Yerlan Suleimen, Gulnur Mamytbekova et al.This study investigated the ovicidal activity of Achillea salicifolia and Hedysarum gmelinii extracts against Toxocara cati eggs under in vitro conditions. Two concentrations (5% and 10%) and four exposure times (0.5, 1, 24, 48 h) were tested in triplicate. The proportion of viable and non-viable eggs, embryo destruction, and shell degeneration were recorded microscopically. Statistical analysis was performed using one-way … …American Journal of Animal and Veterinary Sciences, Vol. 20, Issue 4 · 19 Feb 2026 · 1,620 accessesView PDF Cite

Research ArticleOpen accessIn the abstractThe Yellow Mealworm as a Novel Source of ProteinA. E. Ghaly, F. N. AlkoaikProblem statement: Yellow mealworms of different sizes (4.8-182.7 mg) were grown in a medium of wheat flour and brewer’s yeast (95:5 by weight) to evaluate their potential as a protein source. Approach: There was an initial adjustment period (3-9 days) observed during which the younger larvae (4.8-61.1 mg) grew slowly while the older ones (80.3-182.7 mg) lost weight. After this … …American Journal of Agricultural and Biological Sciences, Vol. 4, Issue 4 · 31 Dec 2009 · 20,859 accessesView PDF Cite

Research ArticleOpen accessIn the abstractMorpho-physiological Differences of the Spermatheca of Attini Ants (Hymenoptera: Myrmicinae)Gabriela Ortiz, Maria Izabel Camargo-MathiasThe insect's spermatheca store the spermatozoa from the time of copulation until the fertilization of the eggs and consists of a sac, usually associated to glands. The ant species Atta laevigata, Atta sexdens sexdens, Atta sexdens piriventris, Acromyrmex coronatus and Cyphomyrmex muelleri are considered pests, as they cause economics losses to several crops. The spermatheca of these species were examined … …American Journal of Agricultural and Biological Sciences, Vol. 1, Issue 4 · 31 Dec 2006 · 7,583 accessesView PDF Cite