Supplemental data by Ukita et al.

They are supporting data of the article entitled "Environmental factors affecting the conception rates of nulliparous and primiparous dairy cattle" in Journal of Dairy Science.该数据集为发表于《乳品科学杂志》（Journal of Dairy Science）的题为《影响未产与初产奶牛受胎率的环境因素》的论文的配套支撑数据。