日粮中添加胆碱对晚产蛋母鸡生产性能和肝脏特性的影响
Effects of Dietary Choline Supplementation on Production Performance and Liver Characteristics in Late-Laying Hens.
摘要(中文译文)
本研究探讨了在66至100周龄的延长产蛋周期内，长期饲粮添加胆碱对褐壳蛋鸡生产性能、肝脏特性及蛋品质的影响。共选取240只海兰褐壳蛋鸡，随机分为四个饲粮处理组，分别添加0%、0.07%、0.28%或0.84%的50%胆碱，每处理组设六个重复。试验期间全程监测生产性能，并于100周龄时采集样品进行生理指标分析。66至75周龄期间，产蛋率随饲粮胆碱水平的升高呈线性增加（< 0.05），而76至100周龄期间各处理组间未见显著差异。添加胆碱显著降低了肝脏脂肪含量和丙二醛浓度（< 0.01），表明肝脏脂质代谢改善且氧化应激减轻。小白卵泡和小黄卵泡数量增加（< 0.05），提示早期卵泡发育增强。血清无机磷水平呈线性下降（< 0.01），而其他血液生化指标未受影响。饲粮处理对骨骼质量性状无影响。添加胆碱组蛋鸡的蛋黄重量降低（< 0.05），而蛋清品质和蛋壳性状保持不变。综上所述，饲粮添加胆碱可改善肝脏健康，并在延长至100周龄的生产周期内维持生产性能。
Abstract
This study investigated the effects of long-term dietary choline supplementation on the productive performance, liver characteristics, and egg quality of brown laying hens during an extended laying cycle from 66 to 100 weeks of age. A total of 240 Hy-Line Brown laying hens were randomly allocated to four dietary treatments containing 0%, 0.07%, 0.28%, or 0.84% supplemental Choline-50%, with six replicates per treatment. Production performance was monitored throughout the experiment, and samples for physiological analyses were collected at 100 weeks of age. Egg production during 66-75 weeks increased linearly with increasing dietary choline levels ( < 0.05), whereas no significant differences were observed between weeks 76 and 100. Choline supplementation significantly decreased liver fat content and malondialdehyde concentration ( < 0.01), indicating improved hepatic lipid metabolism and reduced oxidative stress. Small white and yellow follicle counts increased ( < 0.05), suggesting enhanced early follicular development. Serum inorganic phosphorus levels decreased linearly ( < 0.01), whereas the other blood biochemical traits were unaffected. Dietary treatments did not influence bone quality traits. Yolk weight decreased in the choline-supplemented hens ( < 0.05), whereas albumen quality and shell traits remained unchanged. In conclusion, dietary choline supplementation may improve liver health and maintain productivity during production cycles extending up to 100 weeks of age.
如何引用
AMA
Hee-Jin Kim, Hyunsoo Kim, Myunghwan Yu, Chunik Lim, Junseon Hong, Eui-Chul Hong, et al. Effects of Dietary Choline Supplementation on Production Performance and Liver Characteristics in Late-Laying Hens.. Animals : an open access journal from MDPI. 2026; doi:10.3390/ani16132106.
APA
Hee-Jin Kim, Hyunsoo Kim, Myunghwan Yu, Chunik Lim, Junseon Hong, Eui-Chul Hong, et al (2026). Effects of Dietary Choline Supplementation on Production Performance and Liver Characteristics in Late-Laying Hens.. Animals : an open access journal from MDPI. https://doi.org/10.3390/ani16132106
GB/T 7714
Hee-Jin Kim, Hyunsoo Kim, Myunghwan Yu, Chunik Lim, Junseon Hong, Eui-Chul Hong, et al. Effects of Dietary Choline Supplementation on Production Performance and Liver Characteristics in Late-Laying Hens.[J]. Animals : an open access journal from MDPI, 2026 doi:10.3390/ani16132106.
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