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84 articles for “reproduction”
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Research ArticleOpen accessIn the abstractECOTOXICOLOGICAL BIOASSAYS OF THE EARTHWORMS ALLOLOBOPHORA CALIGINOSA SAVIGNY AND PHERETIMA HAWAYANA ROSA TREATED WITH ARSENATEAbdelmonem Mohamed KhalilLittle research has been carried out on the effect of arsenate on earthworms. Ecotoxicological laboratory tests are fundamental tools for assessing the toxicity of arsenate to soil organisms. In this study, the impact of arsenate on the survival, reproduction and behaviour of the endogenic earthworms Allolobophora caliginosa and the anecic earthworms Pheretima hawayana has been quantified. The 96-h LC 50 … …OnLine Journal of Biological Sciences, Vol. 13, Issue 3 · 27 Sep 2013 · 7,073 accessesView PDFCite
Research ArticleOpen accessIn the abstractGenetic Characterization of a Bovine Breed (Tabapua) Under Artificial Selection Located in the Amazon RegionJose Elivalto Guimaraes Campelo, Marcone Helmer da Silva, Ednaldo da Silva Filho et al.Brazil currently has the biggest commercial bovine cattle population in the world. Several different breeds that come from Europe and India compose it. They are primarily used for dairy and meat production. In Brazil, several high quality genetic background cattle are kept in a condition known as pure breed, meaning no other animal of different genetic background is interbreeding with … …American Journal of Animal and Veterinary Sciences, Vol. 7, Issue 4 · 30 Jan 2013 · 7,558 accessesView PDFCite
Research ArticleOpen accessIn the abstractUse of Quinolones in Bull Semen Extenders to Reduce Sperm Deoxyribonucleic Acid DamageClara Gonzalez-Marin, Michael Eduard Kjelland, Rosa Roy et al.Cryopreserved sperm samples from Holstein bulls (n = 20) were examined for bacterial presence and Sperm DNA Fragmentation (SDF) dynamics. SDF was assessed after thawing (T0) and at 4, 24 and 48 h of incubation (37°C) and the rate of SDF (r-SDF), as an estimator of the DNA degradation over time, was calculated. Two groups of bulls were identified based … …American Journal of Animal and Veterinary Sciences, Vol. 7, Issue 4 · 29 Dec 2012 · 7,433 accessesView PDFCite
Research ArticleOpen accessIn the abstractLife Cycle of Laboratory-Reared Acrobasis nuxvorella Neunzig (Lepidoptera: Pyralidae): A Pecan Nut PestCorella-Madueno Alba Guadalupe, Fu-Castillo Agustin, Harris Marvin et al.Acrobasis nuxvorella Neunzig is a monophagous pest that feeds on pecan nut trees, Carya illinoinensis. Its specific feeding habit makes the reproduction of this insect in the laboratory challenging. The objective of the present work was to replicate the biological cycle of A. nuxvorella under laboratory conditions. Different instar larvae of the insect were collected from infested nut trees. The … …American Journal of Agricultural and Biological Sciences, Vol. 7, Issue 4 · 19 Sep 2012 · 8,326 accessesView PDFCite
Research ArticleOpen accessIn the abstractHybrid Algorithm for Lossless Image Compression using Simple Selective Scan order with Bit Plane SlicingS. N. Sivanandam, A. Pasumpon PandianProblem statement: Identifying the new lossless image compression algorithm for high performance applications like medical and satellite imaging; a high quality lossless image is most important when reproduction which leads to classify the data for decision making. Approach: A new lossless hybrid algorithm based on simple selective scan order with Bit Plane Slicing method is presented for lossless Image compression … …Journal of Computer Science, Vol. 8, Issue 8 · 28 Jul 2012 · 7,486 accessesView PDFCite
Research ArticleOpen accessIn the abstractPerformance Analysis of Multi Clustered Parallel Genetic Algorithm with Gray ValueP. Vishnu Raja, V. Murali BhaskaranProblem statement: Encoding is one of the major factors in genetic algorithms, for a complex problem the optimality for the problem is determined. The encoding mechanism is the initial step which forms the chromosome to form the best fit individuals in the entire population. The proposed method tries to encode the initial population by the binary encoding and by gray … …American Journal of Applied Sciences, Vol. 9, Issue 8 · 28 Jun 2012 · 7,166 accessesView PDFCite
Research ArticleOpen accessIn the abstractEffect of Different Exogeneous Compounds on Biosorption of EndosulfanDeepika Dave, A. K. DikshitProblem statement: Organochlorine pesticide endosulfan is widely used as a replacement for DDT and dieldrin in many parts of the world. Presence of residual pesticides in the water, air and soil environment was confirmed since 1960s. Such Persistent Organic Pollutants (POPs) are of concern because of their long-term subtle effects on hormones, the immune system and reproduction. Therefore, it becomes … …American Journal of Environmental Sciences, Vol. 7, Issue 3 · 11 Jul 2011 · 7,205 accessesView PDFCite
Research ArticleOpen accessIn the abstractMalaria and Climate Change: Discussion on Economic ImpactsMd. Shahin Mia, Rawshan Ara Begum, Ah-Choy Er et al.Problem statement: Climate change is a global environmental change that is adversely affecting human health by causing various health impacts in countries throughout the world. Climate is the most influential driving force of vector-borne diseases such as malaria. Changes in climate factors substantially affect reproduction, development, distribution and seasonal transmissions of malaria. Climate change increases the outbreak of malaria which … …American Journal of Environmental Sciences, Vol. 7, Issue 1 · 28 Feb 2011 · 6,588 accessesView PDFCite
Research ArticleOpen accessIn the abstractRobust Image Watermarking Using Discrete Wavelet TransformDhandapani Samiappan, Krishnan AmmasiProblem statement: Digital Watermarking have gained popularity in recent years as a means of protecting multimedia data from illegal copying and unlawful reproduction. It is mainly used for copyright protection of multimedia data. Approach: In this study an image watermarking algorithm which is blind (do not require the presence of host image for detection) and robust is proposed. Results: The … …Journal of Computer Science, Vol. 7, Issue 1 · 16 Dec 2010 · 8,144 accessesView PDFCite
Research ArticleOpen accessIn the abstractDNA Polymorphism of Bovine Pituitary-Specific Transcription Factor and Leptin Gene Between Iranian Bos indicus and Bos taurus CattleArash Javanmard, Nader Asadzadeh, Fatollah SarhadiProblem statement: Variations at DNA level contribute to the genetic characterization of livestock populations and this may help to identify possible hybridization events as well as past evolutionary trends. Approach: The leptin and Pit-1 are attractive candidate genes for production and reproduction traits in cattle. A total of 247 Animals from four breeds from two species of Iranian cattle populations … …American Journal of Agricultural and Biological Sciences, Vol. 5, Issue 3 · 30 Sep 2010 · 8,028 accessesView PDFCite