ABSTRACT The aim of the present study was to evaluate the effects of dietary supplementation with tomato peels (TP) and rosehip meal (RM) on their phytochemicals transfer to the egg, the antioxidant profile and the markers of lipid peroxidation in stored eggs. The experiment was conducted on 42-week-old TETRA SL laying hens, which were assigned to three dietary treatments with 30 birds each: the Control group (CON) received a corn-soybean diet containing 6% flaxseed meal without any by-product addition. Groups TP and RM received Diet CON with additionally 2% TP and 2% RM, respectively. Average daily feed intake, feed conversion ratio and laying percentage were not significantly changed by the dietary treatments. Compared to the other groups, the inclusion of dietary TP led to a significant increase in egg weight (p < 0.05) and vitamin E content in eggs (p < 0.05). The dietary inclusion of RM generated a higher vitamin A content in eggs compared to Groups CON and TP (p < 0.10). After 40 d of storage, in Groups CON, TP and RM the vitamin E contents of eggs deceased by 10.1%, 14.2% and 13.3%, respectively, whereas the reduction of the lutein and zeaxanthin concentration in eggs was more pronounced (by 24.8%, 21.8% and 25.5%, respectively). For the most primary as well as for secondary oxidation products, storage time had a significant influence (p < 0.05) on the degradation process of the eggs. After 40 d of storage, the most distinct reduction in the formation rate of secondary oxidation products was observed in Group RM (by more than 30%), while the reduction for Group TP amounted from 15% to 25%, when compared with Group CON. Therefore, the results of the present study showed a significantly positive effect of RM in retarding the lipid peroxidation process during storage.

中文翻译：

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番茄皮和玫瑰果粉日粮植物化学物质对蛋鸡脂质过氧化的影响

摘要 本研究的目的是评估膳食补充剂番茄皮 (TP) 和玫瑰果粉 (RM) 对其植物化学物质转移到鸡蛋、抗氧化特性和储存鸡蛋中脂质过氧化标志物的影响。实验是在 42 周龄的 TETRA SL 蛋鸡上进行的，它们被分配到三个日粮处理，每只 30 只鸡：对照组 (CON) 接受含有 6% 亚麻籽粉的玉米 - 大豆日粮，不添加任何副产品. TP 和 RM 组分别接受饮食 CON 和 2% TP 和 2% RM。日平均采食量、饲料转化率和产蛋率没有因日粮处理而发生显着变化。与其他组相比，包含膳食 TP 导致蛋重显着增加（p < 0. 05) 和鸡蛋中的维生素 E 含量 (p < 0.05)。与 CON 组和 TP 组相比，RM 的饮食包含在鸡蛋中产生更高的维生素 A 含量（p < 0.10）。储存 40 天后，在 CON、TP 和 RM 组中，鸡蛋的维生素 E 含量分别下降了 10.1%、14.2% 和 13.3%，而鸡蛋中叶黄素和玉米黄质浓度的下降更为明显（下降了 24.8% 、21.8% 和 25.5%）。对于初级和次级氧化产物，储存时间对鸡蛋的降解过程有显着影响（p < 0.05）。储存 40 天后，与 CON 组相比，RM 组观察到二次氧化产物的形成率降低最明显（降低超过 30%），而 TP 组的降低量从 15% 到 25% . 所以，