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首页> 外文期刊>Journal of dairy research >Contrasting effects of high-starch and high-sugar diets on ruminal function in cattle
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Contrasting effects of high-starch and high-sugar diets on ruminal function in cattle

机译：高淀粉和高糖饮食对牛瘤术仪器的对比作用

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摘要

The experiment reported in this research paper aimed to determine whether clinical and sub-clinical effects on cattle were similar if provided with isoenergetic and isonitrogenous challenge diets in which carbohydrate sources were predominantly starch or sugar. The study was a 3 × 3 Latin square using six adult Jersey cows with rumen cannulae, over 9 weeks. In the first 2 weeks of each 3 week experimental period cows were fed with a maintenance diet and, in the last week, each animal was assigned to one of three diets: a control diet (CON), being a continuation of the maintenance diet; a high starch (HSt) or a high sugar (HSu) diet. Reticuloruminal pH and motility were recorded throughout the study period. Blood and ruminal samples were taken on day-1 (TP-1), day-2 (TP-2) and day-7 (TP-7) of each challenge week. Four clinical variables were recorded daily: diarrhoea, inappetence, depression and ruminal tympany. The effects of treatment, hour of day and day after treatment on clinical parameters were analysed using linear mixed effects (LME) models. Although both challenge diets resulted in a decline in pH, an increase in the absolute pH residuals and an increase in the number of minutes per day under pH 5.8, systemic inflammation was only detected with the HSt diet. The challenge diets differentially modified amplitude and period of reticuloruminal contractions compared with CON diet and both were associated with an increased probability of diarrhoea. The HSu diet reduced the probability of an animal consuming its complete allocation. Because the challenge diets were derived from complex natural materials (barley and molasses respectively), it is not possible to assign all the differential effects to the difference in starch and sugar concentration: non-starch components of barley or non-sugar components of molasses might have contributed to some of the observations. In conclusion, substituting much of the starch with sugar caused no substantial reduction in the acidosis load, but inflammatory response was reduced while feed rejection was increased.
机译：该研究报告的实验旨在确定是否提供了碳水化合物源主要淀粉或糖的异肉和异常挑战饮食，确定对牛对牛的临床和分临床效果相似。这项研究是3×3拉丁广场，使用六个成年泽西奶牛，9周内超过9周。在每3周的前2周内，每3周实验期奶牛服用维护饮食，并且在上周，每只动物都被分配到三种饮食中的一种：控制饮食（CON），是维护饮食的延续;高淀粉（HST）或高糖（HSU）饮食。在整个研究期间记录了网状pH和运动性。在每次挑战周的第1天（TP-1），Day-2（TP-2）和Day-7（TP-7）上进行血液和瘤胃样品。每日记录四种临床变量：腹泻，吸气，抑郁和瘤胃鼓胀。使用线性混合效应（LME）模型分析治疗后治疗后的治疗时间和一天的疗效。虽然两种挑战饮食导致pH的下降，但在pH 5.8下，每天每天的分钟数增加，仍然增加了全身炎症的增加，并且仅通过HST饮食来升高。挑战饮食差异修正的幅度和近视瘤收缩时期与腐蚀饮食相比，两者与腹泻的概率增加有关。 HSU饮食降低了动物完全分配的动物的可能性。因为挑战饮食源自复杂的天然材料（分别分别是大麦和糖蜜），因此不可能将所有差异效应分配给淀粉和糖浓度的差异：大麦的非淀粉组分或糖蜜的非糖组分可能为一些观察结果做出了贡献。总之，用酸中毒载荷的大部分淀粉用糖替换造成显着减少，但炎症反应在进料排出时降低。

著录项

  • 来源
    《Journal of dairy research》 |2020年第2期|175-183|共9页
  • 作者

    Andrea Francesio; Lorenzo Viora; Matt J. Denwood; Will Tulley; Nicola Brady; Peter Hastie; Andrew Hamilton; Christopher Davison; Craig Michie; Nicholas N. Jonsson;

  • 作者单位

    School of Veterinary Medicine University of Glasgow Bearsden Road Glasgow G61 1QH UK;

    School of Veterinary Medicine University of Glasgow Bearsden Road Glasgow G61 1QH UK;

    Department of Veterinary and Animal Sciences University of Copenhagen 1870 Frederiksberg C Denmark;

    The Evidence Group Evidence Group Ltd Cumbria House Gilwilly Road Penrith CA11 9FF UK;

    Institute of Biodiversity Animal Health and Comparative Medicine University of Glasgow Bearsden Road Glasgow G61 1QH UK;

    School of Veterinary Medicine University of Glasgow Bearsden Road Glasgow G61 1QH UK;

    Department of Electronic and Electrical Engineering University of Strathclyde 16 Richmond Street Glasgow G1 1XQ UK;

    Department of Electronic and Electrical Engineering University of Strathclyde 16 Richmond Street Glasgow G1 1XQ UK;

    Department of Electronic and Electrical Engineering University of Strathclyde 16 Richmond Street Glasgow G1 1XQ UK;

    School of Veterinary Medicine University of Glasgow Bearsden Road Glasgow G61 1QH UK Institute of Biodiversity Animal Health and Comparative Medicine University of Glasgow Bearsden Road Glasgow G61 1QH UK;

  • 收录信息 美国《科学引文索引》(SCI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Haematology; inflammation; reticuloruminal acidosis; SARA;

    机译：血液学;炎;网状酸中毒剂;萨拉;

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