A gradual change in daylight length during the year affects the breeding season of Egyptian geese. So the application of optimal photoperiod is essential to improve the reproductive capacity of the animal. This study was conducted to assess the changes in behaviour, circulating levels of follicle-stimulating hormone (FSH), luteinizing hormone (LH), prolactin, and reproductive traits during the season of breeding in Geese. Eighty female geese at age 12 months with an average body weight of 2800 ± 200 g were selected and observed from 1st January to June. A total of 80 female Egyptian geese at age 12 months with an average body weight 2800 ± 200 g were distributed randomly into four groups (20 geese for each group), 5 replicates groups were made comprising 4 birds each. Our results showed a significant increase in feeding, locomotion, body care, and alert behaviour during laying period, with more walking, flaying and swimming, sun rays help bird for more preening to self-grooming enrichment by a pool of water help bird for swimming. The highest FSH and LH levels were recorded during the period of laying, while their lowest levels were during the period of incubation. Egg number and hatchability increased in June compared to March, April, and May by an increase in daylight hours during the breeding season. It could be concluded that the increase in daylight length had a favorable effect on behaviour, gonadotropins, egg number, and hatchability during spring (March- beginning of June, where there is an increase in daylight length) in geese.

年内日照长度的逐渐变化会影响埃及鹅的繁殖季节。因此，最佳光周期的应用对于提高动物的繁殖能力至关重要。这项研究旨在评估鹅繁殖季节行为，卵泡刺激素（FSH），促黄体激素（LH），催乳素和生殖性状的变化。从1月1日到6月，选择了80只12个月大的母鹅，平均体重为2800±200克。总共将80只平均年龄2800±200克，年龄在12个月大的埃及鹅随机分为四组（每组20只鹅），分为5组，每组4只。我们的结果表明，进食，运动，身体护理，并在产卵期间表现出警觉性，随着步行，剥皮和游泳的增加，阳光可以帮助禽类更容易自我修饰，通过水池来游泳。产蛋期间FSH和LH水平最高，而孵化期间最低。与三月，四月和五月相比，六月的卵数和孵化率增加了，因为在繁殖季节白天的时间有所增加。可以得出结论，白天的增加对鹅的行为，促性腺激素，卵数和孵化率有很好的影响（春季（6月的3月初，白天的长度有所增加））。太阳光线可以帮助鸟儿更容易自给自足，通过水池来帮助他们进行自我修饰。产蛋期间FSH和LH水平最高，而孵化期间最低。与三月，四月和五月相比，六月的卵数和孵化率由于繁殖季节白天时间的增加而增加。可以得出结论，白天的增加对鹅的行为，促性腺激素，卵数和孵化率有很好的影响（春季（6月的3月初，白天的长度有所增加））。太阳光线可以帮助鸟儿更容易自给自足，通过水池来帮助他们进行自我修饰。产蛋期间FSH和LH水平最高，而孵化期间最低。与三月，四月和五月相比，六月的卵数和孵化率由于繁殖季节白天时间的增加而增加。可以得出结论，白天的增加对鹅的行为，促性腺激素，卵数和孵化率有很好的影响（春季（6月的3月初，白天的长度有所增加））。在繁殖季节，夏令时增加了4月和5月的时间。可以得出结论，白天的增加对鹅的行为，促性腺激素，卵数和孵化率有很好的影响（春季（6月的3月初，白天的长度有所增加））。在繁殖季节，夏令时增加了4月和5月的时间。可以得出结论，白天的增加对鹅的行为，促性腺激素，卵数和孵化率有很好的影响（春季（6月的3月初，白天的长度有所增加））。