Sökning: "chick quality"
Visar resultat 1 - 5 av 6 uppsatser innehållade orden chick quality.
1. Feeding brown algae and brown algae extracts from Saccharina Latissima to Broiler breeders : effects on transfer of antibodies and nutrients from hen to egg
Master-uppsats, SLU/Dept. of Animal Nutrition and ManagementSammanfattning : 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. LÄS MER
2. Seasonal changes in clupeids maturation constrains the food quality of chicks of the common guillemot (Uria aalge) : A case study of a potential mismatch, from the perspective of the common guillemot chicks on Stora Karlsö, the Baltic Sea
Master-uppsats, Stockholms universitet/Stockholm Resilience CentreSammanfattning : Background: Common guillemots are integral elements of the Baltic Sea marine ecosystem. They possess life-history characteristics such as relatively long lifespan, quite low fecundity resulting in only one egg per breeding season – characteristics that make them particularly vulnerable to even small changes in the environment. LÄS MER
3. Identifying factors of importance for chick quality and traits that may predict chick quality
Master-uppsats, SLU/Dept. of Animal Nutrition and ManagementSammanfattning : In the hatcheries today, the eggs that have cracks are sorted out before incubation. When hatched the chicks are graded as saleable or unsaleable, and salable chicks are transported to the farm. First week mortality (FWM) is a common way to assess chick quality and performance at the farm and it varies among flocks. LÄS MER
4. Evaluating camera monitoring of breeding seabirds
Kandidat-uppsats, Uppsala universitet/Institutionen för biologisk grundutbildningSammanfattning : This thesis was made in collaboration with the Baltic Seabird Project with the purpose of evaluating the possibilities of using cameras to monitor the fledging success of Common Guillemots on Stora Karlsö. Fledging success is measured from the time the egg is laid, hatched, until the chick is 15 days old and considered ready to leave the nest. LÄS MER
5. Sex differences in feeding visit rates in Northern Wheatears Oenanthe oenanthe
Kandidat-uppsats, SLU/Dept. of EcologySammanfattning : AbstractThe Northern Wheatear (Oenanthe oenanthe) is a small insectivorous passerine bird living in open landscapes. Both parents feed the brood of approximately five chicks, but little is known about how each sex allocates their feeding effort. LÄS MER