Effects of ginkgo leaf extract on growth performance, nutrient utilization, blood biochemical parameters, meat quality, fatty acid profiles, and gene expression in growing rabbits

作者：Lu Qi, Rui Chen, Shuanglong Xie, Xu Wang, Jixiao Qin, Yiqing Xu, Yiming Ban, Chengcheng Gao, Peiyao Li, Xingzhou Tian · 发表于：Journal of Animal Science · 年份：2025 · DOI：10.1093/jas/skaf395 · 被引用次数：2 · 研究领域：Rabbits: Nutrition, Reproduction, Health、Veterinary Medicine and Surgery、Moringa oleifera research and applications

The objective of this study was to observe the effects of ginkgo leaf extract (GLE) on growth performance, nutrient utilization, antioxidant activity, carcass yield, meat quality, fatty acid profiles, and gene expression in rabbits. A total of 80 weaned male rabbits were randomly divided into 4 equal treatment groups according to a completely randomized design. The control (CON) group was fed a basal diet, whereas treatments 1 (LG), 2 (MG), and 3 (HG) were fed a basal diet supplemented with 2, 4, and 6 g/kg GLE, respectively. The results indicated that compared with the CON group, the MG treatment group presented significantly (P < 0.05) greater body weight change and average daily gain from 0-42 d. The mortality rate was significantly lower (P < 0.05) in rabbits fed GLE than in those of the CON group. Additionally, the apparent digestibility of acid detergent fibre, hemicellulose, and ash in the rabbits in the MG group was greater (P < 0.05) than that in the CON group. Compared with the CON group, dietary supplementation with GLE significantly increased nitrogen retention. Compared with those in the other three treatment groups, the gross energy (GE) absorption and GE retention in the MG treatment group significantly increased (P < 0.05). Compared with the CON group, the GLE-supplemented groups presented significantly (P < 0.05) increased plasma catalase levels and significantly (P < 0.05) decreased malondialdehyde and total cholesterol contents. Compared with those fed the ...