中国畜牧兽医 ›› 2026, Vol. 53 ›› Issue (2): 810-818.doi: 10.16431/j.cnki.1671-7236.2026.02.027

• 营养与饲料 • 上一篇    下一篇

妊娠中后期添加酵母培养物对母羊生产性能、产后血清指标及瘤胃发酵参数的影响

杨振祥1,2,3(), 李林贵1,2,3, 李昌昌1,3,4, 马文彬1,2,3, 刘艳丰1,3(), 杨会国5, 王文奇1,3(), 李长青6   

  1. 1.新疆畜牧科学院饲料研究所,乌鲁木齐 830011
    2.新疆农业大学动物科学学院,乌鲁木齐 830052
    3.新疆草食家畜饲料生物饲料技术重点实验室,乌鲁木齐 830011
    4.塔里木大学动物科学与技术学院,阿拉尔 843300
    5.新疆畜牧科学院畜牧研究所,乌鲁木齐 830011
    6.内蒙古自治区农牧业科学院,呼和浩特 010031
  • 收稿日期:2025-06-19 出版日期:2026-02-20 发布日期:2026-01-27
  • 通讯作者: 刘艳丰,王文奇 E-mail:2362469334@qq.com;xjslslyf@163.com;xjslswwq@163.com
  • 作者简介:杨振祥,E-mail: 2362469334@qq.com
  • 基金资助:
    国家重点研发计划项目(2021YFD1600701);财政部和农业农村部国家现代农业产业技术体系(CARS-38)

Effect of Adding Yeast Cultures During Mid to Late Gestation on Production Performance, Postpartum Serum Indices and Rumen Fermentation Parameters in Ewes

YANG Zhenxiang1,2,3(), LI Lingui1,2,3, LI Changchang1,3,4, MA Wenbin1,2,3, LIU Yanfeng1,3(), YANG Huiguo5, WANG Wenqi1,3(), LI Changqing6   

  1. 1.Feed Research Institute,Xinjiang Academy of Animal Science,Urumqi 830011,China
    2.College of Animal Science,Xinjiang Agricultural University,Urumqi 830052,China
    3.Xinjiang Key Laboratory of Herbivorous Livestock Feed Biotechnology,Urumqi 830011,China
    4.School of Animal Science and Technology,Tarim University,Alar 843300,China
    5.Livestock Research Institute,Xinjiang Academy of Animal Science,Urumqi 830011,China
    6.Inner Mongolia Academy of Agricultural and Animal Husbandry Sciences,Hohhot 010031,China
  • Received:2025-06-19 Online:2026-02-20 Published:2026-01-27
  • Contact: LIU Yanfeng, WANG Wenqi E-mail:2362469334@qq.com;xjslslyf@163.com;xjslswwq@163.com

摘要:

目的 探讨妊娠中后期添加酵母培养物(YC)对初产母羊生产性能及产后血清生化指标和瘤胃发酵参数的影响。 方法 选取36只妊娠51 d、体重为(37.72±1.91)kg的健康湖羊,按体重相近原则随机分成2组,每组6个重复,每个重复3只羊。试验经9 d预饲,于妊娠60~150 d进行分组饲喂,其中对照组(CK组)提供全混合饲粮;试验组(YC组)在全混合饲粮中添加5%的YC。母羊分娩后,2组均饲喂相同的对照组饲粮。于产后第20天采集母羊血液和瘤胃液样本,测定血清生化、免疫、抗氧化指标及瘤胃发酵参数;同时测定母羊与羔羊的生产性能,以评估YC的持续性效应。 结果 与CK组相比,①YC组羔羊初生重显著升高(P<0.05),羔羊20 d体重也有升高的趋势(0.05<P<0.10);②YC组母羊血清中皮质醇(COR)含量极显著升高(P<0.01),总蛋白(TP)含量显著升高(P<0.05),白蛋白(ALB)含量有升高的趋势(0.05<P<0.10);③YC组母羊血清中白细胞介素-2(IL-2)和肿瘤坏死因子-α(TNF-α)含量极显著升高(P<0.01),免疫球蛋白G(IgG)含量显著升高(P<0.05);④YC组母羊血清中谷胱甘肽过氧化物酶(GSH-Px)活性极显著升高(P<0.01),总抗氧化能力(T-AOC)显著升高(P<0.05),超氧化物歧化酶(SOD)活性有升高的趋势(0.05<P<0.10),丙二醛(MDA)含量则呈降低的趋势(0.05<P<0.10);⑤YC组瘤胃液中微生物蛋白(MCP)含量和丙酸浓度均有升高的趋势(0.05<P<0.10)。 结论 妊娠中后期添加YC可提高初产母羊生产性能,改善母羊机体免疫功能和抗氧化能力。

关键词: 初产湖羊; 酵母培养物; 生产性能; 血清指标; 瘤胃发酵参数

Abstract:

Objective The aim of this study was to investigate the persistent effects of yeast culture (YC) supplementation during mid-to-late gestation on the productive performance, postpartum serum biochemical indices and rumen fermentation parameters of primiparous ewes. Method Thirty-six healthy Hu sheep weighing (37.72±1.91) kg on the 51st day of gestation were selected for the experiment, and were randomly divided into 2 groups according to the principle of similarity in body weight, with 6 replicates in each group and 3 sheep in each replicate. After 9 days of pre-feeding, the experimental feeding was conducted from gestation day 60 to 150. The ewes in control group (CK group) were fed a total mixed ration, while in experimental group (YC group) were fed the same ration supplemented with 5% YC. After lambing, both groups were fed the same diet as the CK group. On postpartum day 20, blood and rumen fluid samples were collected from the ewes for determination of serum biochemical, immune, and antioxidant indices, as well as rumen fermentation parameters. The production performance of the ewes and lambs was also measured to assess the sustained effects of YC. Result Compared with CK group, ① The birth weight of lambs in YC group was significantly increased (P<0.05), and the weight of lambs on day 20 was also tended to increase (0.05<P<0.10); ② The serum cortisol (COR) content of ewes in YC group was extremely significantly increased (P<0.01), the total protein (TP) content was significantly increased (P<0.05), and the albumin (ALB) content tended to increase (0.05<P<0.10); ③ The serum interleukin-2 (IL-2) and tumor necrosis factor-α (TNF-α) contents of ewes in YC group were extremely significantly increased (P<0.01), and the immunoglobulin G (IgG) content was significantly increased (P<0.05); ④ In the serum of ewes in YC group, the activity of glutathione peroxidase (GSH-Px) was extremely significantly increased (P<0.01), the total antioxidant capacity (T-AOC) was significantly increased (P<0.05), the activity of superoxide dismutase (SOD) showed an increasing trend (0.05<P<0.10), and the content of malondialdehyde (MDA) showed a decreasing trend (0.05<P<0.10); ⑤ In the rumen fluid of YC group, the content of microbial protein (MCP) and the concentration of propionic acid showed an increasing trend (0.05<P<0.10). Conclusion Adding YC in the middle and late stages of pregnancy could improve the production performance of primiparous ewes and improve their immune function and antioxidant capacity.

Key words: primiparous Hu sheep; yeast culture; production performance; serum indices; ruminal fermentation parameters

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