LED绿光在雏鹅高密度养殖模式中的调控作用  

Regulation LED green light in high-density culture mode of goslings

作　　者：黄晓凤[1] 刘作兰 薛佳佳 陈英[1] 谢群 钟航[1] 罗艺[1] 关正军 汪超[1,3] HUANG Xiaofeng;LIU Zuolan;XUE Jiajia;CHEN Ying;XIE Qun;ZHONG Hang;LUO Yi;GUAN Zhengjun;WANG Chao(Chongqing Academy of Animal Sciences,Chongqing 402460,China;Department of Engineering and Technology,Southwest University,Chongqing 400715,China;Scientific Observation and Experiment Station of Livestock Equipment Engineering in Southwest,Ministry of Agriculture and Rural Affairs,Chongqing 402460,China)

机构地区：[1]重庆市畜牧科学院,重庆402460 [2]西南大学工程技术学院,重庆400715 [3]农业农村部西南设施养殖工程科学观测实验站,重庆402460

出　　处：《农业工程学报》2024年第20期202-209,共8页Transactions of the Chinese Society of Agricultural Engineering

基　　金：重庆市自然科学基金面上项目(CSTB2022NSCQ-MSX1021);重庆市专项财政资金项目(23517C);国家现代农业产业技术体系项目(CARS-42-22)。

摘　　要：为探究两阶段LED绿光在雏鹅高密度饲养模式中的调控作用,确定适宜的光照方案。该研究基于生产实际,采用双因素试验设计(孵化光照×育雏光照),设置黑暗和绿光2种孵化光照,白光和绿光2种育雏光照,分析高密度饲养模式下孵化期和育雏期LED绿光照射对14 d雏鹅生长性能、肠道发育、血液激素、羽毛质量及啄羽行为的影响。结果表明,育雏期提供LED绿光能显著增加14 d雏鹅体质量、1~14 d日均体质量增量、日均采食量(P<0.05)并降低料重比(P<0.05),显著降低血液中五羟色胺、皮质酮含量及十二指肠隐窝深度(P<0.05),显著增加雏鹅胸腹部羽毛长度(P<0.05)、降低雏鹅背部裸露评分(P<0.01)及减少啄羽行为(P<0.001);种蛋绿光孵化可显著减少子代雏鹅啄羽时间和次数(P<0.05);而孵化光照和育雏光照在影响雏鹅各指标上无显著交互作用(P>0.05)。该研究证实了两阶段LED绿光对雏鹅高密度饲养模式中负面效应的正面调控作用,且育雏期提供绿光效果更好,可为鹅高效生产提供理论依据。Meat goose can represent one of the most significant economic waterfowl in China.An excessively high stocking density can reduce the production performance and welfare of geese.Moreover,the light-emitting diode(LED)green light can play a pivotal role in regulating the growth and development of embryos and offspring in chickens.This study aims to determine the optimal regimen of LED green light in the high-density rearing mode of goslings.According to the actual production,a two-factor experiment was designed with the incubation light(dark and LED green)and growth light(LED white and LED green).A systematic analysis was made to explore the effects of LED green light on growth performance,intestinal development,blood hormones,feather quality,and pecking behaviors of geese in high-stocking density.The results show that the light intensities were 30–40 and 30–35 lx during the incubation and brooding period,respectively,with a light cycle of L:D=24:0.The growth performance of geese was significantly improved by LED green light during the gosling brooding period.The LED green light during the growing period was found to significantly increase the body weight of geese at 14 days,as well as the daily gain and feed intake of geese for 1 to 14 days(P<0.05).Furthermore,there was a significant decrease in the ratio of feed to gain of geese for 1 to 14 days(P<0.05).A significant reduction was found in the concentration of serotonin and corticosterone in the blood,as well as the duodenal crypt depth of the geese at 14 days in the green light group during the growth period(P<0.05),compared with the white light group.Furthermore,the LED green light irradiation during the growing period was observed to significantly increase the length of the chest and abdomen feathers of geese at 14 days posthatching(P<0.05),whereas,the back bare score of geese was reduced at 14 days post-hatching(P<0.01),and the average pecking time and frequency of geese was reduced for 1 to 14 days post-hatching(P<0.001).Thus,the green light environment d

关 键 词：LED绿光 雏鹅 生长性能 孵化期 高密度 肠道发育 羽毛质量 啄羽行为 

分 类 号：S835[农业科学—畜牧学] S815.5[农业科学—畜牧兽医]