This is the time to provide real bones, rawhides, pig ears and other safe things for the puppy to chew on.
在这个阶段可以给它真正的骨头，咬胶、 猪耳或者其他对幼犬安全的东西给它咬。
The experiment proved that IVM is safe and effective for expelling Ascaris Suam. Ivermectin was easy to be taken by pig, low cost and has good popularizing prospect.
试验证明伊维菌素干混悬剂驱除猪蛔虫安全高效，投药方便，成本较低，具有推广前景。
The results showed that it is rich of trace elements such as Fe, Mn, Mg and Zn in bedding and the bedding meets the secondary standard of organic fertilizer, the pig-on-litter bedding is safe.
结果表明：生物床养猪垫料中含有丰富的铁、锰、镁、锌等微量元素，结合全国有机肥料品质要素分级标准，综合评定生物床养猪垫料符合二级有机肥的标准，生物床养猪垫料安全达标。
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