Pregnancy Loss in Dairy Cattle: Relationship of Ultrasound, Blood Pregnancy-Specific Protein B, Progesterone and Production Variables
Pregnancy Loss in Dairy Cattle: Relationship of Ultrasound, Blood Pregnancy-Specific Protein B, Progesterone and Production Variables
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DOI：
10.1111/rda.12703
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发表时间：
2016-08-01
影响因子：
1.7
通讯作者：
Balogh, O. G.
中科院分区：
文献类型：
--
作者：
Gabor, G.;Kastelic, J. P.;Balogh, O. G.
内容 目标是确定奶牛妊娠损失百分比 (PPL) 与以下各项之间的关联： (i) 超声检查妊娠诊断； (ii) 通过血清妊娠特异性蛋白 B (PSPB) 浓度诊断妊娠，无论是否存在血清孕酮浓度； (iii) 生产和环境因素。这项研究包括 13 年来对匈牙利奶牛群中荷斯坦-弗里斯兰奶牛进行的 149822 例妊娠诊断。确定以下内容： 人工授精后 29-42 天经直肠超声检查诊断怀孕的奶牛的 PPL（AI；n=11457）； AI 后 29-35 天通过血清 PSPB 诊断怀孕的奶牛 PPL（n=138365）； PPL 及其与血清孕酮浓度、PSPB 和生产/环境变量的关联。 PPL的定义是基于超声检查或PSPB最初诊断为怀孕但在AI后60 -70天经直肠触诊检查时未怀孕的奶牛的百分比。 PPL 较低（p
Contents Objectives were to determine associations between percentage pregnancy loss (PPL) in dairy cattle and: (i) pregnancy diagnosis by ultrasonography; (ii) pregnancy diagnosis by serum pregnancy-specific protein B (PSPB) concentrations, with or without serum progesterone concentrations; and (iii) production and environmental factors. This study included 149822 pregnancy diagnoses conducted over 13years in Holstein-Friesian cows in Hungarian dairy herds. The following were determined: PPL in cows diagnosed pregnant by transrectal ultrasonography 29-42days after artificial insemination (AI; n=11457); PPL in cows diagnosed pregnant by serum PSPB 29-35days after AI (n=138365); and PPL and its association with serum progesterone concentrations, PSPB and production/environmental variables. The definition of PPL was percentage of cows initially diagnosed pregnant based on ultrasonography or PSPB, but not pregnant when examined by transrectal palpation 60 -70days after AI. The PPL was lower (p