ObjectiveTo study the effect of trazodone on serum NO level in castrated male rats.

目的研究盐酸曲唑酮对去势雄鼠血清一氧化氮（NO）水平的影响。

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Objective to assess corneal epithelial cell apoptosis and related gene expression in castrated male rabbit with experimental xerophthalmia.

目的探讨去势雄兔干眼病模型角膜上皮细胞凋亡及相关基因表达与组织损伤的关系。

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Calcitonin inhibits the bone resorption, increases the bone mass and improves the abnormal bone structure. Calcitonin may prevent the bone loss in castrated male rats.

降钙素可抑制骨吸收，增加骨量，改善骨结构的异常，可预防去势大鼠骨质的丢失。

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Now speaking of the British, they call a castrated male pig a hog.

VOA: special.2009.07.21

A male horse is a gelding if it was castrated and a stallion if it was not.

VOA: special.2009.07.21

Among cattle,a bull is a male cow that has not been castrated.

VOA: special.2009.07.21