Huang Yinghao, Yan Qi, Jiang Maocheng, Guo Sheng, Li Huiwei, Lin Miao, Zhan Kang, Zhao Guoqi, Duan Jinao
Institute of Animal Culture Collection and Application, College of Animal Science and Technology, Yangzhou University, Yangzhou, China.
Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Jiangsu Key Laboratory for High Technology Research of TCM Formulae, Nanjing University of Chinese Medicine, Nanjing, China.
Front Vet Sci. 2022 Jul 11;9:952137. doi: 10.3389/fvets.2022.952137. eCollection 2022.
The purpose of the study was to assess the recovery, immune function, and breeding efficiency of postpartum dairy cows fed (AM) as a feed additive. The experiment used a completely randomized design. Cows were randomly assigned to two groups: (1) Control group fed total mixed ration (TMR; CON group, = 15); (2) AM group fed TMR and AM (AM group, = 15). The AM group was fed 675 g/day. The experimental results showed that compared with the CON group. The breeding interval of the AM group of dairy cows had a tendency to shorten (0.05 < < 0.1). Plasma viscosity (PV), Plasma fibrinogen (FIB), the red cell aggregation index (TRCAI), Calcitonin (CT), Immunoglobulin M (IgM), and Luteinizing hormone (LH) results of AM group showed a time-treatment interaction ( < 0.05). Furthermore, the result of the study revealed that feeding AM as feed additives to dairy cows during the postpartum period had positive effects on wound recovery, immune function, endocrine regulation, and breeding efficiency.
本研究的目的是评估作为饲料添加剂饲喂（AM）的产后奶牛的恢复情况、免疫功能和繁殖效率。试验采用完全随机设计。奶牛被随机分为两组：（1）对照组饲喂全混合日粮（TMR；CON组，n = 15）；（2）AM组饲喂TMR和AM（AM组，n = 15）。AM组每天饲喂675克。实验结果表明，与CON组相比。AM组奶牛的繁殖间隔有缩短的趋势（0.05 < P < 0.1）。AM组的血浆粘度（PV）、血浆纤维蛋白原（FIB）、红细胞聚集指数（TRCAI）、降钙素（CT）、免疫球蛋白M（IgM）和促黄体生成素（LH）结果显示出时间-处理交互作用（P < 0.05）。此外，研究结果表明，在产后期间给奶牛饲喂AM作为饲料添加剂对伤口恢复、免疫功能、内分泌调节和繁殖效率有积极影响。
