When does the release of corticotropin-releasing factor (crf) stop?

When there is a sufficient cortisol level in the body.

Explanation:

Corticotropin-releasing factor (CRF) is a hormone synthesized in the hypothalamus, whose function is the release of adrenocorticotropic hormone (ACTH), also called corticotropin, by the adenohypophysis. The stimuli for the release of CRF converge to the median eminence, leading to their secretion in the pituitary vessels, on the other hand, when the release of cortisol in the organism is high and its concentration is at a significant level, the release of CRF is interrupted.

substitution is the answer in this case

common management practices in dairy and poultry farming are: (i) proper shelter facilities and their regular cleaning. (ii) some basic hygienic conditions such as clean water, nutritious food, etc. (iii) animals are kept in spacious, airy, and ventilated place.