Photoperiodic Regulation of Reproductive Activity in the Ram: Evidence for the Involvement of Circadian Rhythms in Melatonin and Prolactin Secretion

Neural regulation of circadian rhythms.

1979 • 1,417 citations

The Pineal and Its Hormones in the Control of Reproduction in Mammals*

1980 • 1,243 citations

The Entrainment of Circadian Oscillations by Light and Their Role as Photoperiodic Clocks

1964 • 735 citations

Radioimmunoassay of Serum Concentrations of Melatonin in Sheep Exposed to Different Lighting Regimens

1976 • 643 citations

Seasonal Breeding: Nature's Contraceptive

1980 • 618 citations

Biological clocks in seasonal reproductive cycles

1981 • 449 citations

Effect of Melatonin on the Reproductive Systems of Male and Female Syrian Hamsters: A Diurnal Rhythm in Sensitivity to Melatonin¹²

1976 • 407 citations

Melatonin. A Mammalian Pineal Hormone*

1981 • 284 citations

An Introduction to Biological Rhythms

1976 • 256 citations

Some Grubbs-Type Statistics for the Detection of Several Outliers

1972 • 254 citations

Photoperiodic Regulation of Neuroendocrine-Gonadal Activity

1979 • 227 citations

Circadian Rhythmicity in Photoperiodically Induced Gonadotrophin Release and Gonadal Growth in the Quail

1969 • 217 citations

The relationship between sexual and aggressive behaviour, and pituitary and testicular activity during the seasonal sexual cycle of rams, and the influence of photoperiod

1977 • 173 citations

Studies on the Nature of the Endogenous Rhythm Affecting Photoperiodic Response of Biloxi Soybean

1958 • 169 citations

Diurnal Rhythm and Photoperiodism in Testicular Recrudescence of the House Finch

1963 • 159 citations

Regulation of Testis Function in Golden Hamsters: A Circadian Clock Measures Photoperiodic Time

1972 • 145 citations

Serum Melatonin Concentrations During Different Stages of the Annual Reproductive Cycle in Ewes

1978 • 136 citations

Melatonin Induction of Gonadal Quiescence in Pinealectomized Syrian Hamsters

1977 • 131 citations

PURIFICATION AND CHARACTERIZATION OF CAPRINE PROLACTIN

1974 • 119 citations

PHOTOPERIODIC CONTROL OF TESTIS ACTIVITY IN THE VOLE, MICROTUS AGRESTIS

1974 • 111 citations

HOURLY FLUCTUATIONS IN THE BLOOD LEVELS OF MELATONIN, PROLACTIN, LUTEINIZING HORMONE, FOLLICLE-STIMULATING HORMONE, TESTOSTERONE, TRI-IODOTHYRONINE, THYROXINE AND CORTISOL IN RAMS UNDER ARTIFICIAL PHOTOPERIODS, AND THE EFFECTS OF CRANIAL SYMPATHECTOMY

1982 • 105 citations

Photoperiodic Timing Mechanisms in Insects

1966 • 104 citations

Circadian Control of Photoperiodism in the House Finch demonstrated by Interrupted-night Experiments

1964 • 98 citations

Circadian organization and neural mediation of hamster reproductive rhythms

1977 • 92 citations

PHOTOPERIODIC CONTROL OF SEASONAL BREEDING IN THE RAM: PARTICIPATION OF THE CRANIAL SYMPATHETIC NERVOUS SYSTEM

1979 • 91 citations

Photoperiodism in Vertebrates

1981 • 84 citations

Photoperiodic Regulation of Hamster Testis: Circadian Sensitivity to the Effects of Light

1975 • 72 citations

Long-term rhythms of testicular volume and plasma prolactin concentrations in rams reared for 3 years in constant photoperiod

1982 • 69 citations

Light control of prolactin secretion in sheep. Evidence for a photoinducible phase during a diurnal rhythm

1977 • 69 citations

Circadian Clock in Insect Photoperiodism

1970 • 67 citations

The effects of a sudden decrease or increase in daylength on prolactin secretion in the ram

1978 • 65 citations

Ultradian and Seasonal Rhythms in Plasma Gonadotropins, Prolactin, Cortisol, and Testosterone in Pinealectomized Rams*

1981 • 48 citations

EFFECTS OF PINEALECTOMY ON THE SECRETION OF LUTEINIZING HORMONE, TESTOSTERONE AND PROLACTIN IN RAMS EXPOSED TO VARIOUS LIGHTING RÉGIMES

1979 • 47 citations

The effect of rearing under a long or short photoperiod on testis growth, plasma testosterone and prolactin concentrations, and the development of sexual behaviour in rams

1980 • 45 citations

Role of melatonin and circadian rhythms in seasonal reproduction in rams.

1981 • 43 citations

Photoperiodic Regulation of Testis Function in Rats: Mediation by a Circadian Mechanism

1982 • 30 citations

Effects of modifying olfactory and pineal gland function on the seasonality of semen production and plasma luteinizing hormone, testosterone and prolactin levels in rams

1979 • 18 citations

Effects of Short Photoperiod on Pituitary and Testicular Function in the Chinese Hamster, Cricetulus griseus1

1981 • 12 citations

Modulation of gonadal activity by timed injections of melatonin in pinealectomized or intact ferrets kept under two photoperiods

1982 • 10 citations