"1" . "T\u016Fmov\u00E1, Eva" . . "Physiological aspects of oviposition and its role in egg quality" . "1"^^ . "Expulsion of the fully calcified egg from the reproductive tract requires coordination of the muscular activity of the shell gland with relaxation in uterovaginal sphincter. Both arginine vasotocin and prostaglandin F2a result contraction of smooth muscle in the avian uterus through their regulation of intramuscularly Ca2+ concentrations. Because of increasing of phosphorus and magnesium concentrations in the shell gland fluid during the final two hours of calcification, it could be concluded that they might be involved in the termination of shell deposition. Oviposition time is strongly affected by numerous factors, including photoschedule, ovulation, surges of LH and sex steroids hormones and stress factors. In birds ovulation and oviposition are processes controlled by LH and sex steroid hormones. In fact, time of ovulation and oviposition are closely affected by lighting regimes because the open period of LH release is a response to the circadian rhythms. Exposure to stress causes hens to delay t" . "Z(MSM 412100003)" . . . "CZ - \u010Cesk\u00E1 republika" . . . "Physiological aspects of oviposition and its role in egg quality"@en . "Expulsion of the fully calcified egg from the reproductive tract requires coordination of the muscular activity of the shell gland with relaxation in uterovaginal sphincter. Both arginine vasotocin and prostaglandin F2a result contraction of smooth muscle in the avian uterus through their regulation of intramuscularly Ca2+ concentrations. Because of increasing of phosphorus and magnesium concentrations in the shell gland fluid during the final two hours of calcification, it could be concluded that they might be involved in the termination of shell deposition. Oviposition time is strongly affected by numerous factors, including photoschedule, ovulation, surges of LH and sex steroids hormones and stress factors. In birds ovulation and oviposition are processes controlled by LH and sex steroid hormones. In fact, time of ovulation and oviposition are closely affected by lighting regimes because the open period of LH release is a response to the circadian rhythms. Exposure to stress causes hens to delay t"@en . . "2"^^ . . "RIV/60460709:41210/04:7566" . . . . "35" . . "41210" . . "Expulsion of the fully calcified egg from the reproductive tract requires coordination of the muscular activity of the shell gland with relaxation in uterovaginal sphincter. Both arginine vasotocin and prostaglandin F2a result contraction of smooth muscle in the avian uterus through their regulation of intramuscularly Ca2+ concentrations. Because of increasing of phosphorus and magnesium concentrations in the shell gland fluid during the final two hours of calcification, it could be concluded that they might be involved in the termination of shell deposition. Oviposition time is strongly affected by numerous factors, including photoschedule, ovulation, surges of LH and sex steroids hormones and stress factors. In birds ovulation and oviposition are processes controlled by LH and sex steroid hormones. In fact, time of ovulation and oviposition are closely affected by lighting regimes because the open period of LH release is a response to the circadian rhythms. Exposure to stress causes hens to delay t"@cs . . "Scientia Agriculturae Bohemica" . . "1211-3174" . "32;40" . "Physiological aspects of oviposition and its role in egg quality" . "[D20FA26A59E2]" . . . "9"^^ . "Physiological aspects of oviposition and its role in egg quality"@en . . . "RIV/60460709:41210/04:7566!RIV/2005/MSM/412105/N" . "Ebeid, Tarek Amin" . "oviposition time; prostaglandins; arginine vasotocin; LH, lighting regimes; environmental stressors; egg weight; eggshell quality"@en . "Fyziologick\u00E9 aspekty doby snesen\u00ED vejce a jejich v\u00FDznam pro kvalitu vajec"@cs . . "Fyziologick\u00E9 aspekty doby snesen\u00ED vejce a jejich v\u00FDznam pro kvalitu vajec"@cs . . "579526" .