Study on Calcium Phosphorus and Magnesium Serum Levels in Dairy Cows

Abstract

This is a study of the amount of calcium, phosphorus, and magnesium in 1,500 samples of dairy cow serum from Nong-Pho Dairy cow Center in Rajburi. The blood samples were collected from August, 2525, to February, 2526, and divided into 5 groups according to age. In each age group the samples were divided according to the duration of gestation. The result of the study is that the amount of calcium, phosphorus, and magnesium in the serum is considered normal with the calcium : phosphorus ratio between 1.64 : 1 to 1.80 : 1. A comparative analysis of the average amount of the minerals being studied in dairy cows in the early and late periods of gestation shows that there is no significant statistical difference in dairy cows in each age group. Besides, there is no difference in the amount of minerals being studied between the normal dairy cows group and the infertile group.