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Canadian Science Publishing, Canadian Journal of Animal Science, 2024

DOI: 10.1139/cjas-2023-0055

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Effect of feeding calcium gluconate embedded in a hydrogenated fat matrix on performance, gastrointestinal fermentation, ruminal morphology, carcass merit, and meat quality for finishing beef heifers

This paper was not found in any repository, but could be made available legally by the author.
This paper was not found in any repository, but could be made available legally by the author.

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Abstract

Twenty-one beef heifers were used in a randomized complete block design lasting 206 ± 8 day (mean ± SD) to evaluate dry matter intake (DMI), growth, and gastrointestinal tract and carcass characteristics with increasing dose of dietary hydrogenated fat-embedded calcium gluconate (HFCG). Dietary treatments included HFCG included at: 0.0% (CON), 0.09% (CG09), or 0.18% (CG18) DM. Heifers were fed individually and fecal samples were collected on d 171 and 192. Gastrointestinal tissue, digesta, carcass merit, and meat quality and sensory characteristics were assessed after slaughter. Data were analyzed to determine the linear and quadratic effects of HFCG dose. DMI, average daily gain (ADG), and G:F were not affected ( P ≥ 0.08) by dose of HFCG. Gastrointestinal fermentation was minimally affected, while quadratic responses ( P = 0.03 and 0.01, respectively) were observed for jejunal digesta pH and the molar proportion of isovalerate in colonic digesta where both increased and then decreased as HFCG dose increased. Carcass ( P ≥ 0.30), meat quality ( P ≥ 0.06), and sensory characteristics ( P ≥ 0.21) were not affected by dose of HFCG. We conclude that feeding HFCG to finishing beef heifers did not affect DMI, growth, gastrointestinal fermentation parameters, or carcass merit, meat quality, and palatability.