Essays about: "chick"

Showing result 1 - 5 of 31 essays containing the word chick.

  1. 1. Short- and Long-Term Effects of Filial Imprinting on a Model Hen on the Emotional State of White Leghorn Chicks (Gallus gallus domesticus)

    University essay from Linköpings universitet/Institutionen för fysik, kemi och biologi

    Author : Lovisa Åkerstedt; [2023]
    Keywords : chick; cognition; emotional state; fear; filial imprinting; model hen; White Leghorn; Gallus gallus domesticus;

    Abstract : In layer hen commercial production systems, chicks are not raised by hens and do therefore not receive any maternal care. In the wild, after hatching, chicks undergo filial imprinting where they create a social bond with a stimulus in their surrounding environment, usually the mother hen. READ MORE

  3. 2. Common Guillemots Uria aalge Alter Trip Patterns During Breeding

    University essay from SLU/Dept. of Animal Environment and Health

    Author : Mica Bohacek; [2022]
    Keywords : Common Murre; Stora Karlsö; trip duration; trip frequency; central-place foragers; feeding rate; time-budget;

    Abstract : Seabirds are facing immense pressures, primarily induced by competition with commercial fisheries; this is of considerable concern due to the critical role that they play in marine food webs and their invaluable function as bioindicators. In this thesis, I studied the temporal change in trip duration for the Common Guillemot Uria aalge, a circum-arctic seabird species. READ MORE

  4. 3. Common Guillemots Uria aalge Alter Trip Patterns During Breeding

    University essay from SLU/Dept. Of Aquatic Resources

    Author : Mica Bohacek; [2022]
    Keywords : Common Murre; Stora Karlsö; trip duration; trip frequency; central-place foragers; feeding rate; time-budget;

    Abstract : Seabirds are facing immense pressures, primarily induced by competition with commercial fisheries; this is of considerable concern due to the critical role that they play in marine food webs and their invaluable function as bioindicators. In this thesis, I studied the temporal change in trip duration for the Common Guillemot Uria aalge, a circum-arctic seabird species. READ MORE

  5. 4. The broiler production systems of Sweden and the United States : a comparison of the processing systems andhealth and welfare programs

    University essay from SLU/Department of Molecular Sciences

    Author : DenaMarie Bengtsson; [2021]
    Keywords : animal welfare; antibiotics; automation in poultry production; breeders; broilers; conventional broilers; feed; hatcheries; organic broilers; poultry production; poultry slaughter; poultry vaccines;

    Abstract : The aim of this thesis was to research broiler production in Sweden and the United States and to evaluate their processing systems as well as their health and welfare regulations. Sweden produces 110 million broilers a year and the United States produces 9 billion broilers a year. READ MORE

  6. 5. Feeding brown algae and brown algae extracts from Saccharina Latissima to Broiler breeders : effects on transfer of antibodies and nutrients from hen to egg

    University essay from SLU/Dept. of Animal Nutrition and Management

    Author : Stina Kling; [2021]
    Keywords : broiler; broiler breeder; brown algae; Saccharina Latissima; laminarin; prebiotic; transfer; antibodies; nutrients; iodine; chicken; egg quality;

    Abstract : Brown algae and extracts of algae have been proved to have prebiotic effects. Seaweeds grow very fast and underwater. This is good from a sustainable point of view since algae do not need fertilizers, freshwater or agricultural land for growth. Brown algae is rich in nutrients, vitamins and minerals, and has an especially high content of iodine. READ MORE