Comparison of two methods of synchronization of estrus in brown brocket deer (Mazama gouazoubira)
Comparison of two methods of synchronization of estrus in brown brocket deer (Mazama gouazoubira)
复制标题
DOI：
10.1016/j.anireprosci.2009.05.010
复制
发表时间：
2010-02-01
影响因子：
2.2
通讯作者：
Barbanti Duarte, Jose Mauricio
中科院分区：
文献类型：
--
作者：
Zanetti, Eveline dos Santos;Polegato, Bruna Furlan;Barbanti Duarte, Jose Mauricio
本研究旨在建立褐花鹿 (Mazama gouazoubira) 发情同步的方案。两组后鹿（n = 3）接受两种不同的方案：治疗1接受阴道内黄体酮（CIDR®）装置8天，然后在取出时注射265μg氯前列醇；治疗2接受两次265μg氯前列醇注射，间隔11天。 30天后，每组三只后接受另一种治疗。通过发情结束后6天的生殖行为、粪便孕激素和雌激素浓度以及腹腔镜CL观察来评估治疗效果。所有后鹿（100%）在治疗完成后均出现发情行为，但起始时间之间存在显着差异，治疗 I 为 70.5 +/- 5.0 小时，治疗 2 为 52.3 +/- 5.6 小时。平均发情持续时间（34.7 +/- 4.50 和 37.0 +/- 8.11 小时）、排卵率（5/6 和 4/6）、平均CL 大小（4.85 +/- 0.74 和 3.21 +/- 0.19 mm）和发情结束后 6 天的平均粪便孕激素浓度（865.53 +/- 76.59 和 1073.35 +/- 106.82 ng/g 粪便）在治疗之间没有显着差异。在整个治疗过程中粪便雌激素浓度没有差异，并且雌激素：孕激素比率的最大值与发情行为一致。尽管没有直接评估生育能力，但这两种治疗方法都可以有效地同步古阿祖比拉物种的发情期，并形成功能性黄体。 (C) 2009 Elsevier B.V. 保留所有权利。
This study aimed to establish a protocol for synchronization of estrus in brown brocket deer (Mazama gouazoubira). Two groups of hinds (n = 3) were submitted to two different protocols: Treatment 1 received an intravaginal progesterone (CIDR(R)) device for 8 days, followed by 265 mu g injection of cloprostenol at the time of removal; and Treatment 2 received two injections of 265 mu g of cloprostenol 11 days apart. After 30 days, each group of three hinds received the other treatment. Treatment efficacy was evaluated by reproductive behavior, fecal progestin and estrogen concentration and the observation of CL by laparoscopy 6 days after the end of estrus. All the hinds (100%) had estrous behavior upon the completion of treatment, but a significant difference occurred between the time of onset, 70.5 +/- 5.0 h for Treatment I and 52.3 +/- 5.6 h for Treatment 2. The mean estrus duration time (34.7 +/- 4.50 and 37.0 +/- 8.11 h), ovulation rates (5/6 and 4/6), mean CL size (4.85 +/- 0.74 and 3.21 +/- 0.19 mm) and mean fecal progestin concentration at 6 days after the end of estrus (865.53 +/- 76.59 and 1073.35 +/- 106.82 ng/g feces) were not significantly different between treatments. There was no difference in fecal estrogen concentrations throughout the treatment and the greatest values of the estrogen: progestin ratio coincided with estrous behavior. Although fertility was not evaluated directly, both treatments were effective in synchronizing estrus in the species M. gouazoubira, with the formation of functional corpora lutea. (C) 2009 Elsevier B.V. All rights reserved.