Effects of embryo injected with ochratoxins A on hatching quality and jejunum antioxidant capacity of ducks at hatching.

Effects of embryo injected with ochratoxins A on hatching quality and jejunum antioxidant capacity of ducks at hatching.
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DOI:
10.3389/fvets.2022.944891
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发表时间:
2022
影响因子:
3.2
通讯作者:
--
中科院分区:
农林科学2区
文献类型:
--
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大量研究表明赭曲霉毒素A(OTA)具有多种毒理作用,包括肝毒性、肾毒性、遗传毒性、肠毒性和免疫毒性。本研究的主要目的是探讨不同注射时间和OTA剂量的胚胎暴露于OTA对鸭孵化质量和孵化时空肠抗氧化能力的影响。总共对 480 个受精卵进行了称重,并随机分配到 4 × 4 析因设计中,其中包括在胚胎发育第 8、13、18 和 23 个胚胎发育(E8、E13、E18 和 E23)时使用四种 OTA 剂量(0、2、4 和 8 ng/g 卵)。每个处理包括 6 次重复,每次重复 5 个鸡蛋。结果表明,注射时间影响孵化重量(P < 0.0001)。 E18和E23的空肠和回肠相对长度低于E8和E13(P < 0.05)。注射时间、剂量及其相互作用对空肠形态,即绒毛高度(Vh)、隐窝深度(Cd)和绒毛高度/隐窝深度比Vh/Cd没有影响(P > 0.05)。注射时间影响超氧化物歧化酶(SOD)活性(P < 0.0001)、总抗氧化能力(T-AOC)(P < 0.05)和丙二醛(MDA)含量(P < 0.0001)。 E8和E13注射OTA的雏鸭空肠SOD和T-AOC活性均低于E18注射OTA的雏鸭(P < 0.05)。在 E13 注射 OTA 的雏鸭中,MDA 含量最高(P < 0.05)。注射时间(P < 0.0001)、OTA剂量及其相互作用影响IL-1β含量(P < 0.05),特别是在E13时显着增加。总之,注射赭曲霉毒素A的胚胎影响了孵化重量、空肠和回肠的相对长度,降低了抗氧化能力,增加了空肠促炎细胞因子IL-1β的含量。
Numerous studies have shown that ochratoxins A (OTA) exerts diverse toxicological effects, namely, hepatotoxicity, nephrotoxicity, genotoxicity, enterotoxicity, and immunotoxicity. The main objective of this study was to investigate the influence of embryonic exposure to OTA by different injection times and OTA doses on hatching quality and jejunal antioxidant capacity of ducks at hatching. In total, 480 fertilized eggs were weighed and randomly assigned into a 4 × 4 factorial design including four OTA doses (0, 2, 4, and 8 ng/g egg) on 8, 13, 18, and 23 of embryonic development (E8, E13, E18, and E23). Each treatment included 6 repeats with 5 eggs per repeat. The results showed that the injection time affected the hatching weight (P < 0.0001). The relative length of the jejunum and ileum on E18 and E23 was lower than on E8 and E13 (P < 0.05). Injection time, doses, and their interaction had no effect on jejunum morphology, namely, villous height (Vh), crypt depth (Cd), and villous height/crypt depth ratio Vh/Cd (P > 0.05). The injection time affected the activities of Superoxide dismutase (SOD) (P < 0.0001), total antioxidant capacity (T-AOC) (P < 0.05) and the malondialdehyde (MDA) content (P < 0.0001). The activity of SOD and T-AOC activities in the jejunum of ducklings injected with OTA at the E8 and E13 was lower than that injected at the E18 (P < 0.05). The highest MDA content was observed in ducklings injected with OTA at the E13 (P < 0.05). The injection time (P < 0.0001), OTA doses and their interaction affected the contents of IL-1β (P < 0.05), which significantly increased especially on E13. In conclusion, the embryo injected with ochratoxins A affected the hatching weight, the relative length of jejunum and ileum, decreased the antioxidant capacity and increased the content of proinflammatory cytokine IL-1β of the jejunum.
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发表时间: 2018-04
期刊: Asian-Australasian journal of animal sciences
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