动物营养学报2019，Vol.31Issue(8)：3590-3599,10.DOI:10.3969/j.issn.1006⁃267x.2019.08.020
豆粕粉碎粒度对蛋鸡生产性能、蛋品质和消化器官指数的影响
Effects of Soybean Meal Particle Size on Performance, Egg Quality and Digestive Organ Indices of Laying Hens
摘要
Abstract
This experiment was conducted to investigate the effects of different soybean meal particle sizes on performance, egg quality and digestive organ indices of laying hens. The crushing granularity of soybean meal crushed by hammer?chip pulverizer in diet was set as five crushing groups with sieve apertures of 4.00, 5.00, 6.00, 7.00 and 8.00 mm, respectively, and one non?crushing group with sieve size of 6.00 mm. The other feed ingredients were processed in the same way. A total of 2 592 Hyline brown laying hens of 210?day?old were selected and randomized into 6 groups with 6 replicates per group and 72 laying hens per replicate. The experiment lasted for 8 weeks. The results showed that the geometric mean particle size of soybean meal in crushing groups increased significantly with the increasing of the grinding mesh size ( P＜0.05) , and which was smaller than that in non?crushing group with sieve size of 6.00 mm ( P＜0.05). Meanwhile, the granularity dis?tribution was also different. The performance, egg quality and digestive organ indices of laying hens in the crushing groups were better than those in the non?crushing group with sieve size of 6.00 mm. After the soybean meal was crushed by hammer mill, the soybean meal particle size had no significant effects on the perform?ance, egg quality and digestive organ indices of laying hens ( P＞0.05) , but the performance, egg quality and digestive organ indices of laying hens in 5.00 mm sieve diameter group with 732.00 μm geometric mean parti?cle size were better than those in the other groups. It is concluded that the performance, egg quality and diges?tive organ indices of laying hens are the best when the soybean meal is ground with a hammer mill equipped with 5.00 mm screen for laying hens’ diet ( the geometric mean particle diameter of soybean meal is 732.00 μm).[ Chinese Journal of Animal Nutrition, 2019, 31(8) :3590?3599]关键词
豆粕/粉碎粒度/蛋鸡/生产性能/蛋品质/消化器官指数Key words
soybean meal/particle size/laying hens/performance/egg quality/digestive organ indices分类
农业科技引用本文复制引用
吴雨珊,王钦晖,刘传辉,李军国,李俊,薛勇,杨洁..豆粕粉碎粒度对蛋鸡生产性能、蛋品质和消化器官指数的影响[J].动物营养学报,2019,31(8):3590-3599,10.基金项目
现代农业产业技术体系北京市家禽创新团队项目( BAIC04⁃2018) （ BAIC04⁃2018）
国家重点研发计划项目"畜禽养殖绿色安全饲料饲养新技术研发" (2018YFD0500600) （2018YFD0500600）
中国农业科学院创新工程项目( CAAS⁃ASTIP⁃2017⁃FRI⁃08) （ CAAS⁃ASTIP⁃2017⁃FRI⁃08）
