Effects of graded calcium propionate supplementation on body condition score,changes in body weight and energy balance in early lactation Holstein dairy cows were observed.

The cause and regulative factors in the subfertility of high-producing dairy cows were re- viewed from the aspects of body condition score,metabolic signals,endocrine,and reproductive organs.

While carry on the athletics grade point,make use of the in general use formula,measure athletics in the normal distribute of sport result or the index sign carries on the score conversion,making the standard Z cent,standard T cent and progressive grade point formulas become an in general use formula comprehensive,used for different demand of etc.

The findings include that the result of analytical marking of any facet is more reliable than that of holistic marking,and the composite score derived from the facet scores is more reliable than any of the constituent facet scores.

Design and validation of bone marrow histological scoring system for myelodysplastic syndrome;