Interaction of blood calcium with luteal activity, energy metabolites and somatic cells count in post‐partum dairy cows

Abstract

The aim of the research was to assess whether there was a link between serum calcium (Ca) after calving and serum progesterone, milk somatic cells count and Ca, and other blood metabolites in Achai and crossbred cows. Based on blood calcium level shortly after calving, thirty cows from both breeds were divided into a moderate group (≤10.0 mg/dl of Ca) and a high group (>10.0 mg/dl of Ca), with samples collected at 0, 7, 14, 21, 28 and 35 days post-partum, respectively. On day 35 of the post-partum, crossbred and Achai cows with high blood Ca recorded significantly (p < .01) higher serum progesterone, glucose, triglyceride and milk Ca compared with moderate blood Ca group; however, serum cholesterol was significantly (p < .01) higher in both breeds under high blood Ca. Incidence of subclinical mastitis was significantly (p < .01) higher in crossbred and Achai cows under high blood Ca. The results showed that blood progesterone (OR=2.095), glucose (OR=1.024), triglyceride (OR=4.571), cholesterol (OR=1.111) and milk Ca (OR=1.141) resulted in a greater concentration in crossbred compared to Achai cows. A significant (p < .01) correlation was found between blood Ca and other blood metabolites (progesterone, glucose, triglyceride and cholesterol) in both breeds. In conclusion, greater serum Ca concentration after calving is associated with greater serum progesterone, glucose, triglyceride and milk Ca in crossbred cows; however, the incidence of subclinical mastitis increased.

Blood metabolic pattern and somatic cells dynamic in Achai and Holstein Friesian cows during transition period

“…In the present study, blood glucose increased with the advancement of pregnancy and following a post‐partum period in both breeds. These results are similar to the general findings of Fiore et al (2018), Saqib et al (2018) and Shoukat et al (2022). During the pre‐partum period, the serum glucose levels exhibited lower values when compared to the post‐partum time points.…”

“…This observation suggests a strong correlation between milk somatic cell count and milk production. Moreover, it implies that the occurrence of mastitis is less frequent in the local breed (Shoukat et al, 2022). The variation in SCC appears to be contingent on the interplay of cow breed and milk production.…”

“…et al (2018),Saqib et al (2018) andShoukat et al (2022). During the pre-partum period, the serum glucose levels exhibited lower values when compared to the post-partum time points.…”

“…The quantification of SCC holds significant importance, as it is closely linked to sub‐clinical mastitis and reproductive disorders. Recently, Shoukat et al (2022) observed that the SCC count in Achai cows was comparatively lower than that in high‐producing crossbred cows. This observation implies that local Achai cows exhibit greater resistance to both productive and reproductive ailments.…”

Biological Health Markers Associated with Oxidative Stress in Dairy Cows during Lactation Period

“…The biochemistry of blood is estimated significantly to evaluate cattle health status [ 6 , 7 ]. In dairy animals, biochemical measurements are necessary to find a wide range of pathological, physiological, and metabolic problems [ 8 , 9 ].…”