A Guide to Academic Integrity. This is a set of interactive guides that aim to help you gain a better understanding of academic integrity and develop your skills so that your assessed work does not accidentally plagiarise the work of others.
Colostrum should not be thawed and refrozen. Colostrum can be stored frozen for up to a year with no loss of quality. Also storing at a moderate temperature (~ 20 C) for 2 days or refrigeration for 1 week should not result in a decrease in quality.
Odds are, the calf has nursed. It is imperative that the calf nurses within the first 24 hours. That first milk is colostrum, which is essential to the calf's health. Without a good dose of colostrum, the calf will not live. At this stage, I would be more focused on what the cow is doing than the calf.