Essays about: "larval development"

Showing result 21 - 25 of 29 essays containing the words larval development.

  1. 21. The effect of abiotic and landscape features on abundance of Anopheles larvae

    University essay from SLU/Dept. of Ecology

    Author : Milda Norkute; [2014]
    Keywords : Anopheles arabiensis; larvae; density; breeding habits; dipping; landscape; Ethiopia;

    Abstract : Mosquitoes are medically the most important group of insects, transmitting a number of deadly diseases, including malaria. Female mosquitoes transmit them while feeding on human blood, which is required to mature eggs. It is important to understand vector population dynamics in order to effectively control them. READ MORE

  3. 22. Differences in host plant preferences and olfactory physiology between populations of the moth Spodoptera littoralis established in Egypt and Benin

    University essay from SLU/Dept. of Plant Breeding (from 130101)

    Author : Louise Wyke; [2013]
    Keywords : Odour collection; electroantennographic recordings; Spodoptera littoralis strains; oviposition preferences; larval development; diets;

    Abstract : This study was made to compare and distinguish any differences in olfactory recognition and host plant adaptation between two strains of cotton leaf worm, Spodoptera littoralis. The populations used were established in Egypt and Benin, Africa. READ MORE

  4. 23. Environmental tolerance of the free-living stages of the poultry roundworm (Ascaridia galli)

    University essay from SLU/Dept. of Biomedical Sciences and Veterinary Public Health

    Author : Behdad Tarbiat; [2012]
    Keywords : Ascaridia galli; roundworm; organic farm; laying hens; prevalence; environmental factors;

    Abstract : As the EU ban on conventional cages (1999 EU-directive) drew closer, most European countries moved towards alternative systems. Consequently, barn and free-range systems has become increasingly popular. Regardless of how welfare has improved, this major change in husbandry likely affects the parasite transportation. READ MORE

  5. 24. Gene expression, phylogenetic and syntenic analyses of pantophysin (Pan I) and synaptophysin-like2 (Sypl2) genes in Atlantic cod (Gadus morhua L.)

    University essay from SLU/Dept. of Animal Breeding and Genetics

    Author : Suzana Stjelja; [2012]
    Keywords : Gene expression; fish; evolution; phylogeny;

    Abstract : The pantophysin (Pan I) locus reveals differences between Norwegian coastal cod (NCC) and Northeast Arctic cod (NEAC) populations that are highly significant, temporally stable and larger than for any other genetic marker. However, the biochemical basis for the selection and the functional role of pantophysin in fishes are unknown. READ MORE

  6. 25. Utveckling av spolmaskägg från häst, utsatta för stigande koncentrationer av bensimidazol.

    University essay from SLU/Dept. of Biomedical Sciences and Veterinary Public Health

    Author : Isabelle Sjögren; [2012]
    Keywords : anthelmintika; bensimidazol; häst; parascaris equorum; spolmask; LDA;

    Abstract : I Sverige och övriga världen ses en ökad resistensutveckling mot anthelmintika hos ett flertal parasiter. Spolmasken, Parascaris equorum, är en av hästens vanligaste parasiter. För diagnos av läkemedelsresistens hos hästens spolmask används idag FECRT-metoden (faecal egg count reduction test). READ MORE