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81.
高碘日粮对蛋鸡生产性能,体内代谢和蛋品质的影响 总被引:3,自引:0,他引:3
日粮加碘65ppm饲喂蛋鸡,破壳率减少(P<0.05),饲料消耗降低(P<0.01),采食量、产蛋量和蛋重无明显影响(P<0.05),肝中GOT和GPT酶活性显著上升(P<0.01),AKP明显升高(P<0.05),血清中AKP明显增加(P<0.05),SOD提高显著(P<0.05),而肝中CDH和CK,血清中LDH,GOT、GPT和CK无显著差异(P<0.05),SOD提高显著(P<0.05), 相似文献
82.
Iodine is an essential trace element for humans, and while plants play an important role in its supplementation, they can also be subject to iodine toxicity. Herein, comparison of iodide and iodate effects on barley (Hordeum vulgare L.) development was evaluated in laboratory experiments when it was cultivated in iodine-spiked agar cultivation media and agricultural soil. Our results show that iodine toxicity is highly dependent on its chemical form and also reflects growth substrate type. Barley responses to iodine presence in agar and soil media suggest that iodide has more severe inhibitory effects than iodate on plant growth. Furthermore, the detrimental effect of iodine notably increased in soil with biomass synthesis as the most sensitive physiological parameter to adverse iodide and iodate effects. However, mild iodate and iodide stimulation of barley growth was observed which implies they are beneficial for growth at low concentrations. These effects were more intense when iodine was applied as iodide, especially in soil cultivation system where natural geochemical processes lead to alteration in iodine speciation which significantly increases plant sensitivity to iodine toxicity. 相似文献