Eighteen apparently healthy pregnant buffaloes divided into three groups according to gestational stages, i.e. early, mid and late gestation were selected and blood samples were collected. Serum total protein, albumin, globulin and A: G ratio were estimated along with IL-1 beta. The concentration of IL-1 beta increased from early gestation to mid gestation and declined towards late gestation. Concentration of serum total protein, albumin, globulin and A: G was highest during late gestation (8.23+-0.26 g/dl), mid-gestation (3.95+-0.10 g/dl/), late gestation (4.68+-0.21 g/dl/) and early gestation (0.84+-0.12). Concentration of IL-1 beta, serum total proteins, albumin, globulin and A: G was statistically non-significant during all three stages of gestation.

To evaluate the role of dietary supplementation of astaxanthin, prill fat and their combination on antioxidants and immune status of lactating buffaloes during heat stress. Twenty four lactating buffaloes (first to fourth parity) were selected and divided equally into four groups i.e. Group I (control), Group II (astaxanthin 0.25 mg/kg body wt/day), Group III (prill fat 100 g/animal/day) and Group IV (astaxanthin + prill fat). Plasma was separated from the blood collected at fortnightly interval for the analysis of antioxidant enzymes and interleukins levels. The levels of superoxide dismutase and catalase were significantly lower in astaxanthin supplemented groups (Group II and Group IV) compared to Group I and Group III. The levels of pro-inflammatory cytokine (Interleukin-2) was significantly (P LT 0.05) lower in astaxanthin supplemented groups (Group II and Group IV) compared to Group I whereas levels of anti-inflammatory cytokines (Interleukin-10) was significantly (P LT 0.05) higher in all supplemented groups (Group II, Group III and Group IV) than Group I. Results showed that, dietary supplementation of astaxanthin (potent antioxidant) was able to alleviate the heat stress induced changes by lowering the levels of antioxidant enzymes (SOD and CAT) and pro-inflammatory cytokine (IL-2) and improving the levels of anti-inflammatory (IL-10) cytokines in lactating buffaloes during summer season.

Outcome of bovine tuberculosis (bTB), an infectious disease caused by Mycobacterium bovis, is influenced by host genetic background. For this reason, polymorphism discovery association studies are a powerful tool for selective breeding helping disease control. Interleukin-10 (IL-10) is a regulatory cytokine produced by different cells and fine-tune immune response to bTB. Thus, in this research, we evaluated the role of the single nucleotide polymorphism g.4002C GT T in IL-10 gene for susceptibility to bTB in Mediterranean water buffalo. We characterized 184 animals grouped in cases and controls and demonstrated that homozygous subjects TT are about 3 times more susceptible to bTB compared to CC homozygous. Indeed this polymorphism is responsible of amino acid substitution p. (Thr 152 Met) in the primary protein sequence which affects protein secondary structure. This polymorphism might represent a valid tool for marker assisted selection against bovine tuberculosis in water buffalo.