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Effect of Dietary Calcium Propionate Inclusion Level and Duration in High-Risk, Newly Received Stocker Calves: Growth Performance, Body Fat Reserves and Health
Rodriguez-Cordero, D.; Carrillo-Muro, O.; Hernandez-Briano, P.; Rivera-Villegas, A.; Estrada-Angulo, A. Effect of Dietary Calcium Propionate Inclusion Level and Duration in High-Risk Newly Received Stocker Calves: Growth Performance, Body Fat Reserves, and Health. Agriculture2023, 13, 2062.
Rodriguez-Cordero, D.; Carrillo-Muro, O.; Hernandez-Briano, P.; Rivera-Villegas, A.; Estrada-Angulo, A. Effect of Dietary Calcium Propionate Inclusion Level and Duration in High-Risk Newly Received Stocker Calves: Growth Performance, Body Fat Reserves, and Health. Agriculture 2023, 13, 2062.
Rodriguez-Cordero, D.; Carrillo-Muro, O.; Hernandez-Briano, P.; Rivera-Villegas, A.; Estrada-Angulo, A. Effect of Dietary Calcium Propionate Inclusion Level and Duration in High-Risk Newly Received Stocker Calves: Growth Performance, Body Fat Reserves, and Health. Agriculture2023, 13, 2062.
Rodriguez-Cordero, D.; Carrillo-Muro, O.; Hernandez-Briano, P.; Rivera-Villegas, A.; Estrada-Angulo, A. Effect of Dietary Calcium Propionate Inclusion Level and Duration in High-Risk Newly Received Stocker Calves: Growth Performance, Body Fat Reserves, and Health. Agriculture 2023, 13, 2062.
Abstract
Fifty bull calves of the Continental × British crossbred (147.0 ± 1.67 kg body weight, BW) were used in a completely randomized design to investigate the effect varying levels and duration of calcium propionate (CaPr) supplementation on the growth performance, body fat reserves, serum metabolites, and hemogram of high-risk newly received stocker calves. These calves were individually housed and fed a received-diet for 56 d. The calves received the following treatments: 1) No CaPr (CTL), 2) 20 g CaPr/calf/d, 3) 40 g CaPr/calf/d, 4) 60 g CaPr/calf/d, and 5) 80 g CaPr/calf/d, during 14, 28, 42 and 56 d the after arrival. The supplementation with 20 g CaPr from 28 to 56 d after arrival increases average daily gain (ADG) and BW (p < 0.05), and DMI is not affected (p > 0.05). This is reflected at 28 d with increases (p < 0.05) in ADG:DMI ratio and longissimus muscle area (LMA), and at 56 d in back fat thickness (BFT) y fat thickness at the rump (FTR). Also, with 20 g, blood urea nitrogen decreased (p < 0.05); and increases were observed in the activity of gamma glutamyltransferase, monocytes (quadratic trend, p < 0.07) and granulocytes% (quadratic effect, p < 0.03). However, as the level of CaPr increased during the first 14 d after arrival, daily water intake, creatinine, total cholesterol, mean corpuscular hemoglobin concentration (linear effect, p < 0.05), globulin, calcium and mean corpuscular volume (linear trend, p = 0.08) increased, while alkaline phosphatase (linear trend, p = 0.07) and lymphocytes (linear effect, p = 0.05) decreased. Finally, the different levels of CaPr supplementation did not produce any significant effects or differences (p > 0.05), in the remaining serum metabolites and hemogram (p > 0.05). Ultimately, the inclusion of 20 g CaPr/calf/d in the diet for 28 d in newly received stocker calves increases ADG, ADG:DMI ratio and LMA. If extended to 42 or 56 d, the increases in ADG persist, but there is also a rise in body fat reserves (BFT and FTR) at the expense of a reduction in ADG:DMI ratio. Furthermore, the different supplementation levels did not impact the reference range for most serum metabolites or the health of stocker calves.
Biology and Life Sciences, Food Science and Technology
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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