While not usually inherited like the color of hair and eyes, many families hae predispositions for specific diseases and these diseases may affect fertility.
虽然这些疾病不像头发颜色和眼镜颜色那样明显地遗传，但是很多家族都有易患某种疾病的倾向，而这些疾病也是有可能影响生育的。
According to the character of the ovulation and embryo development in Yuxi Short Thick Dock sheep, several specific proposals and measures for increasing the sheep fertility have been put forward.
根据豫西脂尾羊排卵及胚胎生长发育特点，就如何提高其繁殖率问题提出了具体建议和措施。
Except for some specific years, Japanese fertility has shown a declining trend.
日本人口生育率除在个别年份有所提高外，一直处于不断下降的趋势。
Except for some specific years, Japanese fertility has shown a declining trend.
日本人口生育率除在个别年份有所提高外，一直处于不断下降的趋势。
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