|
Study questions
- Describe how you could include contrast terms in the analysis of variance (see Case Study 15) to investigate
any pattern in the effect of level of spent yeast on weight gain or feed conversion efficiency.
- Describe how logistic regression (see Case Study 14) might be used to analyse the effect
of spent yeast on mortality in this experiment assuming that chickens are allocated to, say, 20 surrounds.
- When individual chickens die during an experiment discuss what effect, if any, this might have on the
performance of the surviving group. When analysing weight gain over particular sub-periods of an experiment
discuss whether one should eliminate or retain all measurements for chickens that die during the experiment up to the point that they die.
- Assessment of the amount of feed consumed can be affected by the design of the feeders, as there can be feed spill when the chickens feed.
Describe how you might modify the feeder shown in this study to minimise feed wastage.
|
|
