Partitioning Variation for Power Analyses
Partitioning Variation for Power Analyses
Whenever experiments are conducted with birds, or other animals, researchers first decision to make is the desired experimental unit. The experimental unit may be individuals housed separately, or several individuals housed together.
When individuals are housed separately, variation due to the genetics of different birds and location effects due to different microclimates are confounded. Even the best of research facilities have slight differences in microclimates, the temperature, humidity, and ventilation that individuals are exposed to. Also, when animals are housed individually, there are no social interactions like there would be under commercial conditions. Social interactions are especially important for determining feed intake and inter-bird heat passage.
When birds or animals are housed together in pens, it is possible to mathematically separate the effects of genetic variation and location, or pen. This workbook can produce projected power curves from inputted experimental data.
Download The Partition of Variation for Predicting Experimental Power Workbook Tool
The Poultry Hub Australia profoundly acknowledges and respects that its foundations, both people and facilities, are established on land rich in the history and traditions of the world’s oldest living culture. PHA values and respects Indigenous knowledge, understanding its importance in our shared history. We acknowledge the strength, resilience, and contributions of the Aboriginal community, we pay our tributes to the Aboriginal Elders – those who guided us in the past, those who lead us today, and those who will enlighten our paths in the future.