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.
Unless I have a specific purpose, I only freeze colostrum from the first milking. I've used colostrum that was frozen for 3 years with good results. When I know I'm going to need a lot of milk to start a calf, I'll freeze everything that has the slightest trace of colostrum. For example, I have a cow that was born to a Johne's positive mother. While she's still testing negative herself, this cow is in perpetual quarantine.