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Hence, the author recommend that the decent added dosage of phytase in rapeseedmeal and cottonseed meal be 945U/kg and 873U/kg, respectively.

在菜籽粕和棉籽粕中植酸酶的适宜添加剂量分别为945U／kg和873U／kg。

Methods: Forty pregnant rats were randomly divided into 4 groups and were given DBP by gastric intubation at a dose of 0, 100, 500 or 800 mg/kg from the 14th day to the 18th day of pregnancy. The incidence of cryptorchidism was evaluated in each group 70 days after birth. The histological changes of testis and epididymis in cryptorchid rats were also observed.

孕鼠40只，随机分组，在怀孕14~18天期间，每天分别灌胃给予大豆油、DBP 100mg/kg、500mg/kg、800mg/kg，出生70天后观察雄仔鼠隐睾发生率及隐睾睾丸、附睾病理组织学改变。

The effect of sleep improvement of the three dosages(570 mg/kg,1000 mg/kg and 2000 mg/kg)of Semen Ziziphi Spinosae was studied by the experiments of sleep-induced directly, prolonging sleeping time induced by pentobarbital sodium, affecting mouse sleeping rate under the threshold hypnogenesis dosage of pentobarbital sodium and affecting sleeping delitescence induced by tobarbital sodium. The content of 5-HT in the brain of mouse was measured by fluorescence assay.

通过直接睡眠实验、延长戊巴比妥钠睡眠时间实验、戊巴比妥钠阈下催眠剂量实验和巴比妥钠睡眠潜伏期实验，比较低、中、高3个剂量（570 ，1 000 及2 000 mg/kg）酸枣仁粉剂对小鼠睡眠的影响，并且用荧光法测定小鼠脑中 5-羟色胺含量。

The intraperitonealLD_(50) values in mice of VES and VDPG were 0.16mg/kg and 0.39mg/kg,respectively. The intraperitoneal LD_(50) value in cockroach of VDPG andVES were 2.32μg/g and 1.87μg/g, respectively. After intraperitonealinjection of the venom in mice, the main poisoning symptoms includedlethargy, ataxia, diaphoresis, convulsion, anorexia, shortness of breath,and difficulty to open eyes, etc. Whereas the mice injected withphysiological saline acted normally.

两种粗毒都对小鼠和蜚蠊有较强的毒性，其中毒囊粗毒和电刺激粗毒对小鼠的LD_(50)值分别为0.39mg／kg和0.16mg／kg；毒囊粗毒和电刺激粗毒对蜚蠊的LD_(50)值分别为2.32μg／g和1.87μg／g体重；小鼠经腹腔注射粗毒后，出现无生气、共济失调、排汗、痉挛、食欲减退、呼吸短促、睁眼困难等症状，而注射生理盐水的小鼠活动正常。

Results The total dosimetry received by 160 cases of experimental group was 1768.38×10^(-4)μC/kg and 5493.54×10^(-4)μC/kg in control group.

结果 实验组160例总照射量为1768.38×10^(-4)μC/kg；对照组160例总照射量为5493.54×10^(-4)μC/kg。

The results showed that FW, DW, root activity, POD activity and CAT activity of Vallisneria natans L and Elodea nuttallii were improved when ammonia concentrations were less than 50mg?kg^(-1) and 500mg?kg^(-1), respectively.

kg^(-1)和＜500mg？kg^(-1)时可以分别促进苦草和伊乐藻鲜物质量、干物质量和根系活力的增加，大于此范围则会抑制苦草为Vallisneria natans L和伊乐藻Elodea nuttallii的生长。

The endermic LD50 to rat and mouse were 926 mg/Kg and 1210 mg/Kg respectively. The results of subscute toxicity test in rats showed that the content of blood urea nitrogen in exposure groups was higher than that in control group, the histopathological changes of testis observed in exposure groups were obvious. Mutagenic tests including bacillus subtilis DNA rec-assay, micronucleus ...

其大、小鼠经皮LD_(50)分别为926mg/kg和1210mg/kg；大鼠90天经皮染毒，试验组BUN含量高于对照组，光镜下，试验组睾丸的组织学结构有明显改变；枯草杆菌DNA重组试验、小鼠骨髓多染红细胞微核试验和小鼠睾丸染色体畸变分析试验均获得阳性结果。

Unsaturated fatty acid EPA and DHA content respectively was 170 mg/kg and 150 mg/kg.

不饱和脂肪酸EPA、DHA的含量分别为170 mg/kg和150 mg/kg。

METHODS: Sixty Sprague-Dawley male rats were randomly divided into four groups(n = 15), four methods were designed on rats models of sciatic nerve compression. There were simple decompression as group A, internal neurolysis after decompression as group B, lemithason(0.5 mg/kg) injected in the epineurium after decompression as group C, and lemithason(0.5 mg/kg) injected around the epineurium after decompression and internal neurolysis as group D.

在大鼠坐骨神经卡压模型基础上，将60只SD成年雄性大鼠随机等分为四组。A组：仅去除卡压；B组：去除卡压后切开神经外膜；C组：去除卡压后神经外膜下周围注射利美达松(0.5mg/kg)；D组：去除卡压后切开神经外膜，然后在神经周围注射利美达松(0.5mg/kg)。

The results showed that under different doses the hemolytic index of the gelatin microspheres was lower than 5%, so it did not have significant toxicity; primary skin irritation test showed there were no erythema, eschar and edema of 10% florfenicol gelatin microspheres injection; the LD50 of the microspheres was 2.226 7 g/kg and its 95% credibility limit was 1.950 2~2.635 6 g/kg.

实验结果显示，不同剂量的肺靶向氟苯尼考明胶微球注射剂的溶血指数均小于5%，无明显毒性；10%氟苯尼考明胶微球注射剂对受试动物皮肤无明显刺激作用；肺靶向氟苯尼考明胶微球对小鼠的LD50为2.226 7 g/kg，LD50 95%的可信限为1.950 2 ~2.635 6 g/kg。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。