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首页> 外文期刊>Animal Production Science >Selenium supplementation increases wool growth and reduces faecal egg counts of Merino weaners in a selenium-deficient area
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Selenium supplementation increases wool growth and reduces faecal egg counts of Merino weaners in a selenium-deficient area

机译：在缺硒地区，补充硒可以增加羊毛的生长并减少美利奴断奶仔猪的粪便卵数

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This paper reports on the effects of selenium supplementation on liveweight (LW), greasy fleece weight (GFW), fibre diameter (FD), impact of parasite infection and plasma glutathione peroxidase (GSH-Px) activity in weaned Merino sheep reared in a selenium-deficient area (blood GSH-Px <40 U/g Hb). At weaning, 208 Merino wethers were assigned to two groups: control (CTRL) and treatment (SEL). The SEL group was injected with 0.5 mL of Deposel, a slow release selenium injection. LW, blood and faecal samples were taken at 6-week intervals over a 24-week period. At the end of the trial the animals were shorn and GFW and FD measurements were taken. The SEL group had significantly higher (P < 0.01) LW compared with the CTRL group at Weeks 6, 12, 18 and 24. There was a significant difference (P < 0.05) in GFW between the SEL and CTRL group, 2.93 and 2.75 kg, respectively. There was no difference in FD between the two groups. A trend (P < 0.06) towards lower faecal egg counts in the SEL group was seen but the difference between the two groups was not significant. As expected, the SEL group had significantly (P < 0.001) higher plasma GSH-Px activity compared with the CTRL group. In conclusion, selenium supplementation in weaned Merino sheep reared in a selenium-deficient area could increase the LW and GFW of the young sheep while perhaps reducing the level of parasitic infection.
机译：本文报道了硒对饲养在硒中的美利奴绵羊断奶绵羊的活重（LW），油腻的羊毛重量（GFW），纤维直径（FD），寄生虫感染和血浆谷胱甘肽过氧化物酶（GSH-Px）活性的影响。 -面积不足（血液GSH-Px <40 U / g Hb）。断奶时，将208头美利奴羊胎分为两组：对照（CTRL）和处理（SEL）。 SEL组注射0.5 mL的Deposel（一种缓慢释放的硒注射液）。在24周内每隔6周采集一次LW，血液和粪便样本。在试验结束时，将动物剪毛并进行GFW和FD测量。与CTRL组相比，SEL组在第6、12、18和24周时的LW显着更高（P <0.01）。SEL和CTRL组之间的GFW有显着差异（P <0.05），分别为2.93和2.75 kg ， 分别。两组之间的FD没有差异。 SEL组的粪便卵数降低的趋势（P <0.06）被观察到，但两组之间的差异并不显着。正如预期的那样，SEL组的血浆GSH-Px活性明显高于CTRL组（P <0.001）。总之，在缺硒地区饲养的断奶美利奴绵羊中补充硒可以增加幼羊的体长和生长面积，同时可能降低寄生虫感染的水平。

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