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Effects of photoperiod on growth and development of ruminants


, : Effects of photoperiod on growth and development of ruminants. Growth regulation in farm animals: 427-453

The review considers (1) the neural pathway involved in the transduction of the photoperiod signal; (2) effects of photoperiod on growth and development in sheep and cattle; (3) effects of photoperiod on secretion of prolactin and other hormones influencing growth (somatotropin, glucocorticoids, insulin, thyroid hormones and beta -endorphins) in livestock; (4) the role of melatonin in the recognition of photoperiod.

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