Periparturient high-fat diet supplementation improves hematological indices, milk biochemical composition and productive performance of Goats (Capra hircus)

Rumen bypass fat (RBF) is increasingly recognized as a valuable energy source for dairy animals but their impact on various biochemical and growth performance of kids requires optimizing dietary strategies during the periparturient period in goat farming. The objective of this study was to investigate the effects of RBF supplementation on blood plasma and milk composition, as well as productive potential of Beetal goats. The results exhibited that plasma protein and glucose contents of goats and kids showed non-significant (P  > 0.05) changes, while plasma calcium level was significantly ( P  < 0.05) influenced by supplementation in response to control group. Furthermore, RBF supplementation significantly ( P  < 0.05) enhanced plasma total antioxidant capacity in the T ₂ group and their kids in relative to control group. Treatments significantly ( P  < 0.05) improved cholesterol, high-density lipids (HDL) and antioxidant enzyme activities while triglycerides and low-density lipids (LDL), remained unaffected (( P  > 0.05) compared with control group. Different levels of treatments significantly ( P  < 0.05) enhanced kid growth performance in accordance with control group from day 0 to 60 of post-lactation period. In addition, beetal goats treated with 5% RBF demonstrated significantly ( P  < 0.05) pronounced effects on plasma and milk biochemical indices in relative to control group. The findings offer insights for optimizing dietary management in goat farming practices, emphasizing the importance of considering RBF supplementation for improved productivity in goat farming systems.