Park Sang-Oh, Hwangbo Jong, Yuh In-Suh, Park Byung-Sung
J Environ Biol. 2014 Jul;35(4):635-40.
This study was carried out to find out the effect of supplying gamma linolenic acid (GLA) on laying performance and egg quality. A hundred twenty of 30 weeks old hyline brown laying hens with 98% of egg production were completely randomized to 4 different treatment groups by 30 hens (the control group fed with the diet containing beef tallow, 3 treatment groups fed with the diet containing corn oil, the diet containing hemp seed oil and the diet containing evening primrose oil, respectively), and their laying performance and egg production were investigated for 5 weeks. Intake of hemp seed oil or evening primrose helped to increase the retention rate of GLA, which was transmigrated into eggs from blood. GLA was not detected in the blood samples of control group and treatment group fed diet containing corn oil, while it was significantly increased in the blood samples of the treatment groups fed with diet containing hemp seed oil and diet containing evening primrose oil, respectively. GLA retention was not observed in the eggs produced respectively by control group and treatment group fed with diet containing corn oil, whereas it was significantly increased in the eggs produced by the treatment group fed with diet containing hemp seed oil by 1.09% and the treatment group fed with diet containing evening primrose oil by 4.87%. This result suggests that GLA-reinforced functional eggs can be produced by adding hemp seed oil and evening primrose oil to the feed for laying hens and feeding them with it. It is thought that further researches and clinical trials on biochemical mechanism related to atopic dermatitis should be conducted in future.
本研究旨在探究补充γ-亚麻酸（GLA）对蛋鸡产蛋性能和蛋品质的影响。选取120只30周龄、产蛋率为98%的海兰褐蛋鸡，将其完全随机分为4个不同处理组，每组30只（对照组饲喂含牛脂的日粮，3个处理组分别饲喂含玉米油、大麻籽油和月见草油的日粮），并对其产蛋性能和产蛋情况进行了5周的调查。摄入大麻籽油或月见草油有助于提高GLA的保留率，GLA可从血液转运至鸡蛋中。对照组和饲喂含玉米油日粮的处理组血液样本中未检测到GLA，而分别饲喂含大麻籽油日粮和含月见草油日粮的处理组血液样本中GLA显著增加。对照组和饲喂含玉米油日粮的处理组所产鸡蛋中未观察到GLA保留，而饲喂含大麻籽油日粮的处理组所产鸡蛋中GLA保留率显著提高1.09%，饲喂含月见草油日粮的处理组所产鸡蛋中GLA保留率显著提高4.87%。这一结果表明，通过在蛋鸡饲料中添加大麻籽油和月见草油并饲喂蛋鸡，可以生产出富含GLA的功能性鸡蛋。认为未来应进一步开展与特应性皮炎相关生化机制的研究和临床试验。
