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首页> 外文会议>International symposium on animal environment and welfare >Boosting the Economic Returns of Goose Breeding and Developing the Industry by Controlled Photoperiod for Out-of-Season Reproduction
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Boosting the Economic Returns of Goose Breeding and Developing the Industry by Controlled Photoperiod for Out-of-Season Reproduction

机译：促进鹅养殖的经济回报，控制光周期促进季节性繁殖

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Goose breeds throughout China stop laying eggs during the period from spring to late summer, which leads to gosling and egg prices to skyrocket in this period.To maximize economic returns, artificial photoperiodic programs were developed to induce out-of-season egg laying.For short day breeders such as the Magang and Shitou geese in Guangdong Province,egg laying was interrupted in winter by using 18 h photoperiod for 75 days.Egg laying was reinitiated by decreasing the daily photoperiod to 11 h in spring, from March to April.During summer months, geese maintained under 11 h photoperiod exhibited sound reproductive activities, as manifested by high egg laying rate, fertility and hatchability.For long day breeding Yangzhou goose, a 2-phase photoperiod program was used, which consisted of a short daily photoperiod of 11 h for 3 months starting in winter, and the long daily photoperiod of 11 h to 12h thereafter from spring onwards.Apart from using of an artificial photo-program, mechanical ventilation and water pad cooling of goose house are also required for maintaining sound reproductive performances for Yangzhou goose in Jiangsu Province, where summer can be extremely hot.Out-of-season breeding, which makes gosling production coincide with the annual price peak, has increased economic profit per goose by 3 to 6 times more than those by the conventional production.Over the years, the out-of-season goose breeding has helped farmers to expand and modernize the production, and significantly increase the profit margin of a relatively primitive geese industry.
机译：在中国春季到夏天的时期，鹅品种在春天到夏天，这导致了在此期间飙升的鸡蛋和鸡蛋价格。为了最大化经济回报，开发了人工光周期计划，以诱导季节蛋铺设。广东省麦克和石油鹅等短日饲养员在冬季中断了鸡蛋敷料，通过使用18小时光周期，持续75天。从3月至4月，通过将日常光周期降低到11小时，重新加固。夏季，鹅维持在11小时的光周期下展出了声音生殖活动，表现出高卵铺设率，生育和孵化率。甚至养殖扬州鹅，使用了一项2相光周期的程序，其中包括每日短的每日光紫外线11小时在冬季开始3个月，以及11小时的长日照片，此后从春天向后开始.Apart使用人工照片，机械鹅屋的通风和水垫冷却也需要在江苏省扬州鹅的健全生殖性能，夏季可以是极热的。季节繁殖，使得流氓生产与年度价格高峰相符，增加了每只鹅的经济利润超过传统生产的比例超过3倍。多年来，季节性鹅养殖帮助农民扩大和现代化生产，并大大增加了相对原始鹅的利润率行业。

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