Moon Seung-Gyu, Lee Sung-Kwang, Lee Woo-Do, Niu Kai-Min, Hwang Won-Uk, Oh Jong-Seok, Kothari Damini, Kim Soo-Ki
Department of Animal Science and Technology, Konkuk University, Seoul 05029, Korea.
Institute of Biological Resource, Jiangxi Academy of Sciences, Nanchang 330029, China.
Anim Biosci. 2021 Feb;34(2):285-294. doi: 10.5713/ajas.20.0552. Epub 2020 Nov 9.
This study was conducted to investigate the supplementary effect of a phytogenic blend (SPA: a mixture containing fermented Schisandra chinensis pomace, fermented Pinus densiflora needle extract, and Allium tuberosum powder in the ratio of 2:2:1) on egg production, egg quality, blood constituents, and visceral organs in laying hens.
A total of 135 Hy-line brown laying hens (48-wk-old) were randomly allocated to three dietary treatments with 5 replicates of 9 hens. The control group (CON) was fed a basal diet (no exogenous SPA addition) and the experimental groups were fed the basal diet containing SPA at the level of 0.1% and 0.3% for 6 weeks.
The feed intake was significantly improved in SPA supplemented groups as compared with the control (p<0.05). However, egg production, daily egg mass, and feed conversion ratio were not different among the dietary treatments (p>0.05). For egg quality traits, only Haugh unit (HU) was significantly improved in SPA (0.3%) (p<0.05) as compared with other groups. However, HU was not affected during 4-wk of storage at 18°C among the dietary treatments (p>0.05). Furthermore, SPA supplementation did not affect the blood biochemical constituents except for the phosphate content, which was significantly higher in SPA groups than the CON group (p<0.05). There were no significant differences in visceral organ characteristics and immune indicators (immunoglobulin A [IgA], IgG, and IgM) in SPA or CON groups.
This study suggested that the supplementation of SPA may have beneficial effects on feed intake and egg quality in laying hens.
本研究旨在探讨一种植物源混合物（SPA：一种由发酵五味子果渣、发酵赤松针叶提取物和韭菜粉按2:2:1比例组成的混合物）对蛋鸡产蛋性能、蛋品质、血液成分和内脏器官的补充作用。
将135只海兰褐蛋鸡（48周龄）随机分为三个日粮处理组，每组9只鸡，重复5次。对照组（CON）饲喂基础日粮（不添加外源SPA），实验组分别饲喂添加0.1%和0.3% SPA的基础日粮，为期6周。
与对照组相比，添加SPA的组采食量显著提高（p<0.05）。然而，日粮处理间的产蛋量、日产蛋量和饲料转化率没有差异（p>0.05）。对于蛋品质性状，与其他组相比，只有添加0.3% SPA组的哈氏单位（HU）显著提高（p<0.05）。然而，在18°C储存4周期间，日粮处理间的HU不受影响（p>0.05）。此外，除磷含量外，添加SPA对血液生化成分没有影响，SPA组的磷含量显著高于CON组（p<0.05）。SPA组和CON组在内脏器官特征和免疫指标（免疫球蛋白A [IgA]、IgG和IgM）方面没有显著差异。
本研究表明，添加SPA可能对蛋鸡的采食量和蛋品质有有益影响。
