• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Animal Science >Effects of ring castration with local anesthesia and analgesia in Holstein calves at 3 months of age on welfare indicators
【24h】

Effects of ring castration with local anesthesia and analgesia in Holstein calves at 3 months of age on welfare indicators

机译：3月龄荷斯坦牛犊局部麻醉和镇痛进行环去势对福利指标的影响

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Forty-seven Holstein calves (130 +/- 3.43 kg of BW and 95 +/- 1.5 d of age) were randomly assigned to 2 treatments [ intact (INT), n = 23; or castrated ( CAS), n = 24] to evaluate the effect of ring castration at 3 mo of age on welfare indicators. Castration was performed with local anesthesia (2% lidocaine, 3 mL in each testis and 2 mL in the scrotum) and analgesia ( flunixin meglumine, intramuscularly, 3 mg/kg of BW). No local anesthesia or analgesia was used with INT calves. Serum cortisol concentration was determined at -120, 0, 30, 60, 90, and 180 min with respect to castration. At d 0, 1, 3, 7, 14, 21, 28, 35, 42, and 49, serum haptoglobin concentration was determined, rectal body and scrotal temperatures were measured, lesions at the castration site were scored, and the activity and behavior of 18 calves ( 9 INT and 9 CAS) were recorded continuously for 24 h. Weekly BW and concentrate and straw DMI were recorded. To evaluate humoral immunity, at 14 d after castration, ovalbumin was injected subcutaneously and serum antibody titers against ovalbumin before the injection and at d 35 were determined. At d 49 after castration, calves were intravenously injected with ACTH, and at 0, 1, 2, and 4 h thereafter, serum cortisol and testosterone concentrations were determined. Average daily gain was greater (P < 0.001) in INT than CAS calves (1.36 vs. 1.16 +/- 0.038 kg/d, respectively). Area under the curve of cortisol at castration day was reduced (P < 0.05) in CAS calves compared with INT calves (18 vs. 33 +/- 5.2 nmol/L per hour, respectively). The main scrotal lesion score observed in CAS calves throughout the study was 0, corresponding to no visible swelling, inflammation, or infection. However, scrotal lesion scores classified as 1 ( swelling) were greater (P < 0.01) at 21 and 28 d after castration than at 1, 3, 7, and 14 d. Abnormal standing occurred more frequently ( P < 0.001) in CAS than INT calves (2.6 vs. 0.5 +/- 0.03%, respectively) from 3 to 14 d after castration. Head turning tended (P = 0.06) to be greater at d 14 of the study in CAS than INT calves (3.0 vs. 2.6 +/- 0.04%, respectively). At d 49, 100% of CAS calves had no testes and no serum testosterone was detected. In summary, ring castration of Holstein calves performed at 3 mo of age with local anesthesia and analgesia decreased ADG and affected some behavioral traits during the first 14 d after castration. However, intake, serum cortisol and haptoglobin concentrations, rectal temperature, and humoral immunity were not altered
机译：47只荷斯坦犊牛（体重130 +/- 3.43 kg，年龄95 +/- 1.5 d）被随机分配到2种治疗中[完整（INT），n = 23;或cast割（CAS），n = 24]，以评估3个月大时ring割对福利指标的影响。 local割采用局部麻醉（2％利多卡因，每个睾丸3 mL，阴囊2 mL）和镇痛（氟尼辛葡甲胺，肌注，3 mg / kg BW）进行。 INT小腿未使用局部麻醉或镇痛。相对于去势，在-120、0、30、60、90和180分钟确定血清皮质醇浓度。在第0、1、3、7、14、21、28、35、42和49天，测定血清触珠蛋白浓度，测量直肠和阴囊温度，对去势部位的病变进行评分，并记录其活动和行为连续记录24小时的18头犊牛（9 INT和9 CAS）。记录每周BW，精矿和秸秆DMI。为了评估体液免疫性，去势后14 d皮下注射卵清蛋白，并在注射前和d 35测定针对卵清蛋白的血清抗体滴度。去势后第49天，给小牛静脉注射ACTH，然后在0、1、2和4小时，测定血清皮质醇和睾丸激素的浓度。 INT的平均日增重高于CAS犊牛（P <0.001）（分别为1.36和1.16 +/- 0.038 kg / d）。与INT犊牛相比，CAS犊牛去势日皮质醇曲线下的面积减少了（P <0.05）（分别为每小时18 vs. 33 +/- 5.2 nmol / L）。在整个研究中，CAS小腿所观察到的主要阴囊病变评分为0，与可见的肿胀，炎症或感染无关。但是，cast割后21和28 d阴囊病变评分为1（肿胀）大于1、3、7和14 d（P <0.01）。在cast割后3到14 d，CAS站立异常的发生率比INT犊牛高（P <0.001）（分别为2.6和0.5 +/- 0.03％）。在CAS研究中，第14天的头转弯倾向（P = 0.06）大于INT犊牛（分别为3.0 vs. 2.6 +/- 0.04％）。在第49天，CAS小牛100％没有睾丸，也没有检测到血清睾丸激素。综上所述，荷斯坦犊牛在3个月大时进行cast割，局部麻醉和镇痛可降低decreased割后的ADG并影响一些行为特征。但是，摄入量，血清皮质醇和触珠蛋白浓度，直肠温度和体液免疫均未改变

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号