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首页> 外文期刊>Animal Reproduction Science >Effects of d-cloprostenol administrations with 7.5 and 11.5-day intervals between administrations on pregnancy rates after artificial insemination in estrous cyclic dairy goats
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Effects of d-cloprostenol administrations with 7.5 and 11.5-day intervals between administrations on pregnancy rates after artificial insemination in estrous cyclic dairy goats

机译：D-Clopostenol施用7.5和11.5天间隔对妊娠期乳房山羊人工授精后妊娠速率对妊娠率的影响

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摘要

This study was conducted to evaluate effects of two administrations of d-cloprostenol at different intervals to synchronize the time of estrus and ovulation among estrous cyclic goats. In Experiment 1, 32 does were treated with 30 mu g d-cloprostenol at 7.5 (T7.5, n = 16) or 11.5-day (T11.5, n=16) intervals. In Experiment 2, the same treatments were administered and there was AI of the does (T7.5, n = 40 and T11.5, n = 38). In Experiment 1, ultrasonic assessments of ovaries were conducted at the time of the second administration of d-cloprostenol, every 12 h until detection of ovulation, and 7 days after estrous onset to detect the corpora lutea, as well as for pregnancy diagnosis 40 days after AI. In Experiment 1, the estrous response (90.6%, 29/32) was similar (P > 0.05) in both groups. Diameter of the largest follicle at the time of administration of the second dose was larger (P = 0.01) in the T7.5 than T11.5 group (7.0 compared with 5.7 mm), while the values for ovarian variables were similar (P > 0.05). In Experiment 2, the greatest (P 0.001) synchrony in timing of initiation of estrus in does (T7.5 = 83.3% and T11.5 = 50.0%) occurred after the second day (36-48 h). The pregnancy rate tended (P = 0.0836) to be greater for does in the T7.5 (71.4%, 40/56) than T11.5 (55.6%, 30/54) group. With use of both protocols, there were acceptable estrous synchronization and pregnancy rates in estrous cyclic dairy goats.
机译：进行该研究以评估两种施用D-Clopostenol以不同间隔的影响，以使雌性循环山羊的雌性和排卵的时间同步。在实验1,32中，将32例在7.5（T7.5，N = 16）或11.5天（T11.5，N = 16）间隔下用30μgd-cloporostenol处理。在实验2中，施用相同的处理，并且存在相同的处理（T7.5，N = 40和T11.5，n = 38）。在实验1中，在第二次施用D-Clopostenol时进行卵巢的超声波评估，每12小时直到检测排卵，发病术后7天检测，以检测Lutea，妊娠诊断40天ai后。在实验1中，两个组中的溶解反应（90.6％，29/32）相似（p> 0.05）。在施用第二剂量时，在T7.5的较大（P = 0.01）时，最大卵泡的直径比T11.5组（7.0与5.7毫米），而卵巢变量的值相似（P> 0.05）。在实验2中，在第二天（36-48小时）后，最大的（T7.5 = 83.3％和T11.5 = 50.0％）的开始时的最大（P <0.001）同步。在T7.5（71.4％，40/56）中，妊娠率趋于（p = 0.0836），比T11.5（55.6％，30/54）组。随着两种协议的使用，患有循环乳制品山羊的可接受的骚扰和怀孕率。

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  • 来源
    《Animal Reproduction Science》 |2019年第2019期|共7页
  • 作者

    Bonato G. C.; Maia A. L. R. S.; Cortes L. R.; Oliveira T. A.; Arrais A. M.; Figueira L. M.; Oliveira M. E. F.; Souza-Fabjan J. M. G.; Fonseca J. F.;

  • 作者单位

    Univ Fed Vicosa Programa Posgrad Med Vet Av Peter Henry Rolfs S-N BR-36570000 Vicosa MG Brazil;

    Univ Fed Fluminense Fac Vet Av Vital Brazil Filho 64 BR-24230340 Niteroi RJ Brazil;

    Univ Fed Fluminense Fac Vet Av Vital Brazil Filho 64 BR-24230340 Niteroi RJ Brazil;

    Univ Presidente Antonio Carlos Med Veterinciria Av Juiz de Fora BR-36047362 Juiz De Fora MG Brazil;

    Univ Fed Rural Rio de Janeiro Inst Vet Rodovia BR 465 Km 07 Zona Rural BR-23890000 Seropedica RJ Brazil;

    Univ Fed Lavras Programa Posgrad Zootecnia Av Doutor Sylvio Menicucci 1001 BR-37200000 Lavras MG Brazil;

    Univ Estadual Paulista Fac Ciencias Agr &

    Vet Via Acesso Prof Paulo Donato Castellane S-N BR-14884900 Jaboticabal SP Brazil;

    Univ Fed Fluminense Fac Vet Av Vital Brazil Filho 64 BR-24230340 Niteroi RJ Brazil;

    Univ Fed Vicosa Programa Posgrad Med Vet Av Peter Henry Rolfs S-N BR-36570000 Vicosa MG Brazil;

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  • 正文语种 eng
  • 中图分类 动物学;
  • 关键词

    PGF2 alpha; AI; Estrous synchrony; Ultrasonography; Ovulation; Goats;

    机译：pgf2 alpha;ai;ostrous同步;超声检查;排卵;山羊;

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