Bogin E, Avidar Y, Davidson M, Gordin S, Israeli B
J Dairy Res. 1982 Feb;49(1):13-23. doi: 10.1017/s0022029900022081.
The relationship between nutrition, fertility and blood composition was studied in 400 cows from commercial farms. Fertility evaluated by overall conception rate (OCR) was shown to be significantly related proportion of concentrate and roughage feeds in the diet, and to its content of dry matter, digestible protein, Ca and P. The ratio of serum total lipids to glucose and a newly introduced parameter, delta Pi (a calculated value, obtained by subtracting whole blood levels of Pi from those of the blood serum), showed a highly significant relationship to OCR. No significant relationship was found between OCR and serum, total lipids, cholesterol, urea, Ca, Mg, organic and inorganic phosphate. The values and significance of the 2 blood parameters which showed a relationship to fertility are discussed.
在来自商业农场的400头奶牛中研究了营养、繁殖力和血液成分之间的关系。通过总受孕率（OCR）评估的繁殖力被证明与日粮中精饲料和粗饲料的比例及其干物质、可消化蛋白质、钙和磷的含量显著相关。血清总脂质与葡萄糖的比率以及一个新引入的参数δPi（通过从血清中减去全血中的磷水平获得的计算值）与OCR呈高度显著关系。未发现OCR与血清、总脂质、胆固醇、尿素、钙、镁、有机和无机磷酸盐之间存在显著关系。讨论了与繁殖力相关的两个血液参数的值和意义。
