羊毛皮质醇作为妊娠晚期母羊及其新生儿压力的推定回顾性指标:胎次和产仔数的影响-一项探索性研究

IF 2.1 Q1 AGRICULTURE, DAIRY & ANIMAL SCIENCE
E. Zeinstra, J. Vernooij, Mireille Bentvelzen, F. J. van der Staay, R. Nordquist
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引用次数: 0

摘要

应激是影响动物福利的一个重要因素。毛发或羊毛的皮质醇浓度被认为是动物所经历的压力的潜在长期指标。使用Swifter羊,我们研究了母羊胎次和产仔数是否会影响母羊及其后代的羊毛皮质醇浓度。我们假设,产多胎的母羊及其后代的羊毛皮质醇浓度会高于产多胎的母羊及其后代,产仔多的母羊及其后代的羊毛皮质醇浓度会低于产仔少的母羊及其后代,公羊羔的羊毛皮质醇浓度会高于母羊羔,母羊及其羊羔羊毛中的羊毛皮质醇浓度是相关的。羔羊毛在妊娠晚期在子宫内生长。在母羊中,使用剃毛法,这样母羊的羊毛样本也覆盖了大约妊娠的最后三个月。我们的研究证实产仔数量影响母羊羊毛皮质醇浓度:产仔较大(即3或4只羔羊)的母羊羊毛皮质醇浓度高于产仔较小(即1或2只羔羊)的母羊。没有证据表明母羊和羊羔的羊毛皮质醇浓度是相关的。母羊的产仔数和胎次都不影响羔羊的羊毛皮质醇。我们的研究证实,羊毛皮质醇可以在母羊和它们的新生羔羊中可靠地测量,并表明它可能是妊娠最后三个月压力的回顾性指标。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Wool cortisol as putative retrospective indicator of stress in ewes during the third trimester of pregnancy, and their newborns: effects of parity and litter size — an exploratory study
Stress is an important factor in animal welfare. Hair or wool cortisol concentrations are considered to be potential long-term indicators of stress experienced by an animal. Using Swifter sheep, we investigated whether ewe parity and litter size affect the wool cortisol concentrations in ewes and their offspring. We hypothesized that multiparous ewes and their offspring would have higher wool cortisol concentrations than primiparous ewes and their offspring, that ewes with larger litters and their offspring would have lower wool cortisol concentrations than ewes with smaller litters and their offspring, that male lambs would have higher wool cortisol concentrations than female lambs, and that the wool cortisol concentrations in the wool of ewes and their lambs would be correlated. Lamb wool grows in utero during the third trimester of pregnancy. In ewes, the shave–reshave method was used so that wool samples from ewes also covered approximately the last trimester of pregnancy. Our study confirmed that litter size affected ewe wool cortisol concentrations: ewes that gave birth to larger litters (i.e., 3 or 4 lambs) had higher wool cortisol concentrations than ewes that gave birth to smaller litters (i.e., 1 or 2 lambs). There was no evidence that the wool cortisol concentrations of the ewes and their lambs were correlated. Neither litter size nor parity of the ewe affected wool cortisol in the lambs. Our study confirms that wool cortisol can be reliably measured in ewes and their newborn lambs, and suggests that it may be useful as a retrospective indicator of stress during the last trimester of pregnancy.
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CiteScore
2.30
自引率
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审稿时长
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