Carry-over and interaction effects of different hand-milking techniques and milkers on milk
Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
The main idea of this thesis is studying the importance of the carry-over effects and interaction effects in statistical models. To investigate it, a hand-milking experiment in Burkina Faso was studied. In many no electricity access countries, such as Burkina Faso, the amount of milk and milk compositions are still highly relying on hand-milking techniques and milkers. Moreover, the time effects also plays a important role in stockbreeding system. Therefore, falling all effects, carry-over effects and interaction effects into a linear mixed effects model, it is concluded that the carry-over effects of milker and hand-milking techniques cannot be neglected, and the interaction effects among hand-milking techniques, different milkers, days and periods can be substantial.
Place, publisher, year, edition, pages
1986. , 26 p.
Carry-over effect, Interaction effect, Linear mixed effects model, Fixed effects, Random effects, Hand-milking, Milker, Milk composition.
Probability Theory and Statistics
IdentifiersURN: urn:nbn:se:uu:diva-154641OAI: oai:DiVA.org:uu-154641DiVA: diva2:421336
Subject / course
Master Programme in Statistics
UppsokSocial and Behavioural Science, Law
Norell, Lennart, ProfessorLyhagen, Johan, Professor