Zinc Signaling in Skeletal Muscle

Gumpper, Kristyn; Ma, Jianjie

doi:10.1007/978-981-15-0557-7_7

Cited by 1 publication

(1 citation statement)

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“…Albeit its relatively slow Zn metabolism compared to other Zn stores, skeletal muscle comprises a large percentage of Zn storage in the body making it a potential indicator of Zn nutrition ( Gumpper and Ma, 2019 ). A tendency for an IMP × Zn effect for muscle Zn concentration was observed ( P = 0.09) in which IS/200-ZnG steers had greater muscle Zn than IS/200-ZnS, NoIMP-ZnB, and NoIMP-ZnG steers while not different from IS/200-ZnB or NoIMP-ZnS.…”

Section: Resultsmentioning

confidence: 99%

Effect of zinc source and implant strategy on performance, carcass characteristics, and trace mineral concentrations in finishing feedlot steers

Messersmith

Hansen

2021

Translational Animal Science

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Seventy-two Angus-crossbred steers (411 ± 16 kg) were assigned to a 2 × 3 factorial arrangement of treatments to examine the effects of blended Zn source supplementation on performance, carcass characteristics, and trace mineral parameters of steers administered no implant or a two-implant program. Factors included implant (IMP) strategies and Zn supplementation. During the 126-d study steers were either not implanted (NoIMP) or implanted (IS/200; Elanco, Greenfield, IN) on d 0 (Component TE-IS; 80 mg trenbolone acetate + 16 mg estradiol) and 57 (Component TE-200; 200 mg trenbolone acetate + 20 mg estradiol). All steers were fed 70 mg Zn/kg on a dry matter (DM) basis from ZnSO4 + 30 mg Zn/kg DM from either basic ZnCl (Vistore Zn, Phibro Animal Health, Teaneck, NJ), Zn glycinate (Gemstone Zn, Phibro Animal Health), or ZnSO4 (ZnB, ZnG, or ZnS, respectively). Steers were blocked by weight into pens of 6 and fed a dry rolled corn-based diet via GrowSafe bunks (GrowSafe Systems Ltd.; Airdrie, AB, Canada). Data were analyzed using the Mixed Procedure of SAS, with fixed effects of Zn, IMP, and the interaction. Steer was the experimental unit (n = 12 steers/treatment). Liver and muscle collected on d -5, 14, 71, and 120 were analyzed for Zn concentration, and data were analyzed as repeated measures (repeated effect = Day). An IMP × Zn tendency (P = 0.07) was observed for d 126 body weight with no effects of Zn within NoIMP while ZnS tended to be heavier than ZnB with ZnG intermediate within IS/200. Carcass-adjusted overall feed efficiency (G:F) was greatest for ZnS (Zn; P = 0.02). Implanted cattle had greater DM intake, G:F, and carcass-adjusted performance (P ≤ 0.01). Liver Zn concentrations were greater for IS/200 by d 120 (IMP × Day; P = 0.02). Within IS/200, ZnG tended to have greater muscle Zn than ZnS while ZnB was intermediate (Zn × IMP; P = 0.09). No Zn or IMP × Zn (P ≥ 0.12) effects were observed for carcass data. However, IS/200 had greater hot carcass weight, dressing percentage, and ribeye area than NoIMP (P ≤ 0.001). These data suggest implants improve growth and influence Zn metabolism. Future work should examine Zn sources and supplementation alongside implant strategies.

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Section: Resultsmentioning

confidence: 99%