1. Abebe G., Scott J., Eley S., 1992. Absence of diurnal rhythm of plasma cortisol in Bos indicus (Boran) cattle, Tropical Agriculture (Trinidad), 69 (1), 39-42.
2. Bazzano M., Faggio C., Panzera M., Assenza A., Piccione G, 2015. Daily rhythm of total activity/rest pattern in small and large domestic animals, Journal of Biological Research 88, 51-61.
3. Berger J., 2008. A two-clock model of circadian timing in the immune system of mammals, Pathologies biologic, 56 (5), 286-291.
4. Bertolucci C., Giannetto C., Fazio F., Piccione G, 2008. Seasonal variations in daily rhythms of activity in athletic horses, Animal 2 (7), 1055-1060.
5. Brown R. W., Thomas J. L., Cook H. M., Riley J. L., Booth G. D, 1977. Effect of environmental temperature stress on intramammary infections of dairy cows and monitoring of body and intramammary temperatures by radiotelemetry, Animal Journal of Veterinary Research, 38:181-187.