1. Diurnal variation in concentrations of hydrocortisone in plasma of swine;Whipp;Am J Vet Res,1970
2. Circadian variation in plasma cortisol and corticosterone in pigs and mares;Bottoms;Am J Vet Res,1972
3. Circadian rhythm. Man and animals;Atcheson,1975
4. Rhythms in CRF, ACTH, and corticosteroids;Krieger,1979
5. Effects of photoperiod and feeding on plasma corticosteroid concentrations and maximum corticosteroid-binding capacity in pigs;Barnett;Aust J Biol Sci,1981