Effect of Dietary Cation-Anion Difference on Milk Composition and Blood Mineral Status of Peripartum

The aim of this study was to see how a diet designed to provide prepartum (DCAD= -749.16 mEq/head/day) and postpartum (DCAD = 1473.56 mEq/head/day) mineral concentrations, health, and postpartum milk production and composition in buffaloes affected blood mineral concentrations, health, and postpartum milk production and composition. Twenty multiparous buffaloes were enrolled and divided into two classes 21 days before their scheduled calving date. The treatment group of 10 cows was fed anionic rations from birth to parturition and cationic rations from parturition to +21 days, while the control group was fed a standard ration. Milk fever, dystocia, placental retention, mastitis, and weekly milk production and composition data were all reported after delivery. Calcium and magnesium levels were measured in plasma samples taken on days -21, -10, -1, +1, +10, and +21 after calving. Magnesium concentration was improved with a lower prepartum Dietary Cation-Anion Difference (DCAD) in the diet, with the control and treatment groups having DCAD values of 2.770.13 mg/dl and 3.150.12 mg/dl, respectively, one day before calving.When compared to the control group, calcium concentration in the treatment group was significantly higher (P0.05) just one day before calving and even higher (P0.001) at 1, 10, and 21 days after calving. When compared to the control group, there was a significant decrease in the percent occurrence of parturient paresis (10.0 vs. 20.0) and prolapse (0.0 vs. 10.0). The DCAD concentration had no effect on milk yield, protein, lactose, or fat corrected milk, but it did increase postpartum milk fat significantly.It is possible to infer that increasing postpartum milk fat with benefits in calcium status and reduced disease incidence without adversely affecting output in periparturient buffaloes can be achieved by altering DCAD of the diet.

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