Effect of parity on the peripartum hypocalcaemia In dairy cows under Egyptian conditions

Abstract

A total of 30 dairy cows were attended in veterinary practice investigations have been done under Egyptian conditions, in Seds farm belong to animal production research institute , from the reproductive perspective . the study divided the animals according to parities to - one parity , two parity , three parity and more than three parity .The study followed values of some biochemical parameters glucose, calcium, phosphorus, potassium, sodium ,cholesterol, triglyceride, albumin ,total protein and urea. showed that cows affected by hypocalcaemia. The most important notifeibal results in postpartum 1-7 days the calcium level of cows with parity one calcium level were 7.06 gm /dl while in cows with parity two were 6.64 gm/dl, in cows with three parity 6.6 gm /dl and cows more than three parity calcium level were 6.91 gm/dl. 14-21 days post partum .4 cows with parity one calcium level were 7.46 gm /dl, first parity cows has along interval from calving to estrus ,days open and number of services. cows with parity two has along period to come in first estrus at 86 ±5.6 s days and long days open which were 106±4.7 days. But NO. of services were high in cows with more than three parity 1.9±0.16

Keywords

• Parity
• peripartum
• hypocalcaemia
• dairy cows
• Egyptian