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首页> 外文期刊>Journal of dairy research >Effects of intramammary antibiotic therapy during the dry period on the performance of Lacaune dairy sheep under intensive management
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Effects of intramammary antibiotic therapy during the dry period on the performance of Lacaune dairy sheep under intensive management

机译：集约化管理干乳期抗生素对Lacaune奶牛生产性能的影响

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摘要

Often the only way to ensure profitability of Lacaune dairy sheep is intensive management, which requires appropriate dry-period treatment to ensure animal productivity and health. The present study aimed to investigate the effects of intramammary antibiotic dry therapy on the performance and health of Lacaune sheep under intensive management. We recorded data for 5981 complete lactation periods that followed a dry period. A total of 2402 lactation periods were preceded by a dry period involving intramammary administration of 300 mg of cephapirin benzathine (antibiotic group) and 3579 lactation periods were preceded by dry periods with no treatment (control group). The following on-farm yield data were collected for individual lactation periods: length of the subsequent lactation period; total milk yield per lactation period; daily milk yield and length of the subsequent dry period. Data on confounding factors that might affect productivity were also recorded, including the individual ewe, number of lactation periods and length of the previous dry period. Milk quality was assessed using data on somatic cell count (SCC) and content of protein and fat taken from the Spanish National Official Milk Yield Recording System. Antibiotic dry therapy significantly improved total yield per lactation period, which was 429 ± 151.1 I in the antibiotic group and 412 ± 165.5 I in the control group, as well as the daily milk yield, which was 1986±497.0 and 1851 ±543.2 ml/d, respectively (both P＜0.0001). The initial dry period was significantly longer in the antibiotic group than in the control group, and dry period length correlated inversely with yield variables such us total yield per lactation period (r = - 0.055; P＜ 0.0001) and yield per day in milk (r= - 0.039; P＜ 0.0001). As a result, milk yield records systematically underestimated the positive effects of antibiotic dry therapy. Antibiotic dry therapy also significantly improved milk quality. Milk from the antibiotic group showed 50% lower SCC (573 ±1326 vs. 1022 ±2126 cells/ml; P<0-0001) and slightly higher content in fat (7.33 ±0.91 vs. 7.15 ±0.87%) and protein (5.63 ±0.44 vs. 5.44 ±0.4%). The results of this study suggest that cephalosporin dry therapy of Lacaune dairy sheep increases milk production and improves milk quality during subsequent lactation periods.
机译：通常，确保Lacaune奶牛获利的唯一方法是集约化管理，这需要适当的干期处理以确保动物的生产力和健康。本研究旨在调查强化管理下乳内抗生素干法治疗对Lacaune绵羊的性能和健康的影响。我们记录了在干燥期之后的5981个完整泌乳期的数据。总共2402个泌乳期之前是一个干乳期，涉及在乳房内施用300 mg头孢氨苄苄星（抗生素组），而3579个泌乳期之前是不治疗的干乳期（对照组）。针对各个泌乳期收集以下农场产量数据：后续泌乳期的长度；每个泌乳期的总产奶量；每日产奶量和随后干燥期的长度。还记录了可​​能影响生产率的混杂因素的数据，包括单个母羊，泌乳期数和前一个干燥期的长度。使用来自西班牙国家官方牛奶产量记录系统的体细胞计数（SCC）数据和蛋白质和脂肪含量评估了牛奶质量。抗生素干法治疗可显着提高每次泌乳期的总产量，抗生素组为429±151.1 I，对照组为412±165.5 I，日产奶量为1986±497.0和1851±543.2 ml /分别为d（均为P ＜0.0001）。抗生素组的初始干燥期明显长于对照组，干燥期长度与产量变量成反比，例如每个泌乳期的总产量（r =-0.055； P ＜0.0001）和每天的牛奶产量（ r ＝ -0.039； P ＜0.0001）。结果，牛奶产量记录系统地低估了抗生素干法疗法的积极作用。抗生素干法治疗还可以显着改善牛奶质量。抗生素组的牛奶的SCC降低了50％（573±1326比1022±2126细胞/ ml; P <0-0001），脂肪和蛋白质（7.33±0.91比7.15±0.87％）略高（50％） ±0.44对5.44±0.4％）。这项研究的结果表明，Lacaune乳羊的头孢菌素干疗法可在随后的泌乳期增加产奶量并改善牛奶质量。

著录项

  • 来源
    《Journal of dairy research》 |2015年第1期|95-101|共7页
  • 作者

    Fernando Hernandez; Laura Elvira; Beatriz Fernandez; Marta Egea; Antonio Gonzalez-Bulnes; Juan V Gonzalez-Martin; Susana Astiz;

  • 作者单位

    Granja Cerromonte SL, San Juan de la Encinilla, 05358 Avila, Spain;

    TRIALVET S.L., C/Encina, 22, 28721 Cabanillas de la Sierra, Madrid, Spain,MSD Animal Health Spain, C/ Josefa Valcarcel, 38, 28027 Madrid, Spain;

    Department of Animal Reproduction, INIA, Avda Pta. de Hierro s, 28040 Madrid, Spain;

    Outcomes Research Department, Pfizer Spain, Avda Europa 20B, 28108, Alcobendas, Madrid, Spain;

    Outcomes Research Department, Pfizer Spain, Avda Europa 20B, 28108, Alcobendas, Madrid, Spain;

    TRIALVET S.L., C/Encina, 22, 28721 Cabanillas de la Sierra, Madrid, Spain,Department of Animal Medicine and Surgery, Faculty of Veterinary Medicine, Universidad Complutense de Madrid (UCM), Avda. Pta. de Hierro s, 28040 Madrid, Spain;

    Department of Animal Reproduction, INIA, Avda Pta. de Hierro s, 28040 Madrid, Spain;

  • 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

    Lacaune; dairy sheep; antibiotic dry therapy; cephalosporin; SCC; intensive management;

    机译：拉考恩乳羊抗生素干疗法;头孢菌素SCC;集约管理;

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