Abstract
Background: Seaweeds are rich in complex carbohydrates, proteins and low molecular weight nitrogenous compounds, lipids, organic minerals, vitamins and pigments. The aim of the study is to evaluate the effect of supplementation of seaweed formulations on haematological, blood biochemical parameters and immune response of crossbred calves. Methods: A total of 18 male crossbred calves (130±7.56 kg live weight) were divided into 3 groups of 6 each based on complete randomized design. Calves in control (T0) was fed on standard diet, while treatment groups: T1 and T2 were supplemented with AF-KWP or AFRD-5 at the rate of 4% of concentrate mixture with 1% calcium carbonate and 1% dicalcium phosphate replacing mineral mixture and common salt offered in T0. The experiment was conducted for a period of 240 days. Blood was collected from each calf on 0, 100 and 200 days of experimental periods. Result: Concentration of Hb, PCV and RBC count was significantly higher in T1 and T2. Supplementation of seaweed increased significantly (P less than 0.001) the lymphocytes to neutrophil ratio. Serum total protein, albumin (A), globulin (G) and A:G ratio were comparable. Humoral immune response was significantly higher (P less than 0.001) in T1 and T2. Study concluded that supplementation of seaweed formulations of T1 and T2 improved erythropoiesis, alleviate stress and increased humoral immune responses in crossbred calves and recommend as replacement to mineral mixture and common salt.
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