Acta Veterinaria et Zootechnica Sinica ›› 2025, Vol. 56 ›› Issue (6): 2968-2977.doi: 10.11843/j.issn.0366-6964.2025.06.039

• Basic Veterinary Medicine • Previous Articles     Next Articles

Preventive Effect of Aspirin Eugenol Ester on Fatty Liver Hemorrhagic Syndrome in Laying Hens

YAN Kai1,2(), XU Xiao2, QING Zhe2, BAI Lixia2, LI Zhun2, YANG Yajun2, LIU Xiwang2, LI Shihong2, GE Wenbo2,*(), LI Jianyong1,2,*(), LI Cun1,*()   

  1. 1. College of Animal Science and Veterinary Medicine, Tianjin Agricultural University, Tianjin 300392, China
    2. Key Laboratory of New Animal Drug Project of Gansu Province, Key Laboratory of Ministry of Agriculture and Rural Affairs, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China
  • Received:2024-07-29 Online:2025-06-23 Published:2025-06-25
  • Contact: GE Wenbo, LI Jianyong, LI Cun E-mail:jinngoi17@gmail.com;gewenbo@caas.cn;lijy1971@163.com;hhlicun@163.com

Abstract:

This study aimed to investigate the preventive effects of aspirin eugenol ester (AEE) on fatty liver hemorrhagic syndrome (FLHS) in laying hens. A total of seventy-eight 160-day-old Hy-Line Brown laying hens were randomly assigned to six groups, each containing 13 hens. Results were as follows: Group Ⅰ received a basal diet, while Groups Ⅱ to Ⅴ were fed a high-energy, low-protein diet supplemented with 0, 25, 50, and 100 mg·kg-1 of AEE, respectively. Group Ⅵ was provided a diet containing 2 g·kg-1 choline chloride. The experiment lasted for 90 days. The results are in the following fashion: ① Compared to Group Ⅰ, Group Ⅱ showed a significant decrease in egg production rate and average egg weight (P < 0.05), and a significant increase in the feed-to-egg ratio (P < 0.05). In comparison to Group Ⅱ, Groups Ⅲ to Ⅵ exhibited a significant increase in egg production rate and average egg weight at different time points (P < 0.05), and a significant decrease in the feed-to-egg ratio (P < 0.05). ② Compared to Group Ⅰ, the body weight of hens in Group Ⅱ significantly increased (P < 0.05). However, compared to Group Ⅱ, the body weights of hens in Groups Ⅲ to Ⅵ significantly decreased (P < 0.05). ③ Compared to Group Ⅰ, the hens in Group Ⅱ showed significantly enlarged livers with a yellowish color, punctate hemorrhages on the surface, and increased friability. HE staining revealed disordered hepatocyte arrangement and the presence of fat vacuoles of various sizes. In contrast, the liver structure of hens in Groups Ⅲ to Ⅵ returned to normal compared to Group Ⅱ. ④ Liver Index and Lipid Levels: Compared to Group Ⅰ, Group Ⅱ showed significantly increased liver index and elevated levels of triglyceride (TG), total cholesterol (TC), and low-density lipoprotein (LDL) in serum and liver tissues, with significantly decreased high-density lipoprotein (HDL) levels (P < 0.05). However, compared to Group Ⅱ, Groups Ⅲ to Ⅵ exhibited significantly lower liver index, TG, TC, and LDL levels, and significantly increased HDL levels (P < 0.05). ⑤ Group Ⅱ exhibited significantly lower activities of liver superoxide dismutase (SOD), glutathione peroxidase (GSH), and catalase (CAT), along with significantly higher malondialdehyde (MDA) levels compared to Group Ⅰ (P < 0.05). In comparison, Groups Ⅲ to Ⅵ had significantly higher SOD, GSH, and CAT activities and lower MDA levels compared to Group Ⅱ (P < 0.05). The results indicate that feeding laying hens a high-energy, low-protein diet effectively induces fatty liver hemorrhagic syndrome. Supplementing this diet with varying doses of AEE demonstrates a protective effect against FLHS in laying hens.

Key words: aspirin eugenol ester, laying hens, fatty liver hemorrhagic syndrome, antioxidant markers

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