Effect of hydrogenated fat-embedded calcium gluconate on lactation performance in dairy cows

Hydrogenated fat-embedded calcium gluconate (HFCG), a prebiotic mixture designed to target the hindgut, has improved milk and component yields when supplemented in mid-lactation cows, likely due hindgut health. The objective of this study was evaluate production responses HFCG fed dairy cattle over full lactation. Seventy-four Holstein cows (21 primiparous, 53 multiparous) were used randomized complete block design comparing supplementation with (approximately 16 g/day supplement delivering approximately 6.4 g active ingredient) negative control from 21 days prior calving until end In multiparous HFCG, average daily protein yield ( P = 0.037) increased during first 8 weeks lactation, while fat, fat- energy-corrected tended ≤ 0.075) increase same period time. Increased supported by concurrent dry matter intake 0.036). Future work is needed characterize mode action product within both lumen host, as well investigate potential differential between primiparous animals course