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Ribeiro FA, Lau SK, Furbeck RA, Herrera NJ, Henriott ML, Bland NA, Fernando SC, Subbiah J, Pflanzer SB, Dinh TT, Miller RK, Sullivan GA, Calkins CR. Effects of relative humidity on dry-aged beef quality. Meat Sci 2024; 213:109498. [PMID: 38520828 DOI: 10.1016/j.meatsci.2024.109498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 03/12/2024] [Accepted: 03/17/2024] [Indexed: 03/25/2024]
Abstract
This study was conducted to evaluate the effects of relative humidity (RH) on moisture loss and flavor in dry-aged beef. Sixteen strip loins were assigned to one of the four aging treatments: vacuum (WET), dry-aging at 50% RH, dry-aging at 70% RH, or dry-aging at 85% RH and aged for 42 days at 2 °C. Loins were evaluated for evaporation loss, trim loss, tenderness, sensory, and microbiological characteristics. Results show that lower RH results in accelerated moisture loss during the first 3 days of the aging process without significantly affecting the total amount of moisture loss. Pseudomonadales dominated the aerobically dry-aged loins while Enterobacteriales was the most abundant in the wet-aged samples. Dry-aged samples had increased content of free amino acids in the cooked meat juice compared to the wet-aged counterpart. Dry aging at 50% RH tended to associate with more desirable flavor notes.
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Affiliation(s)
- Felipe A Ribeiro
- Department of Animal Science, University of Nebraska, Lincoln, NE 68583-0908, United States
| | - Soon K Lau
- Department of Food Science and Technology, University of Nebraska, Lincoln, NE 68588-6205, United States; Department of Biological Systems Engineering, University of Nebraska, Lincoln, NE 68583-0726, United States
| | - Rebecca A Furbeck
- Department of Animal Science, University of Nebraska, Lincoln, NE 68583-0908, United States
| | - Nicolas J Herrera
- Department of Animal Science, University of Nebraska, Lincoln, NE 68583-0908, United States
| | - Morgan L Henriott
- Department of Animal Science, University of Nebraska, Lincoln, NE 68583-0908, United States
| | - Nicolas A Bland
- Department of Animal Science, University of Nebraska, Lincoln, NE 68583-0908, United States
| | - Samodha C Fernando
- Department of Animal Science, University of Nebraska, Lincoln, NE 68583-0908, United States
| | - Jeyamkondan Subbiah
- Department of Food Science and Technology, University of Nebraska, Lincoln, NE 68588-6205, United States; Department of Biological Systems Engineering, University of Nebraska, Lincoln, NE 68583-0726, United States; Department of Food Science, University of Arkansas, Fayetteville, AR 72704, United States
| | - Sérgio B Pflanzer
- College of Food Engineering, Department of Food Technology, University of Campinas, Campinas, São Paulo 13083-862, Brazil
| | - Thu T Dinh
- Department of Animal and Dairy Sciences, Mississippi State University, Mississippi State, MS 39762, United States
| | - Rhonda K Miller
- Texas A&M University Animal Science Department, 2471 TAMU, College Station, TX 77843, United States
| | - Gary A Sullivan
- Department of Animal Science, University of Nebraska, Lincoln, NE 68583-0908, United States
| | - Chris R Calkins
- Department of Animal Science, University of Nebraska, Lincoln, NE 68583-0908, United States.
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Caetano M, Goulart RS, Silva SL, Leme PR, Pflanzer SB, dos Santos ACR, Lanna DPD. Effects of the Duration of Zilpaterol Hydrochloride Supplementation and Days on Feed on Performance, Carcass Traits and Saleable Meat Yield of Nellore Bulls. Animals (Basel) 2021; 11:ani11082450. [PMID: 34438906 PMCID: PMC8388753 DOI: 10.3390/ani11082450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 08/03/2021] [Accepted: 08/05/2021] [Indexed: 12/02/2022] Open
Abstract
Simple Summary Zilpaterol hydrochloride (ZH) is a β-adrenergic agonist (βAA) to be feed to feedlot cattle at a rate of 8.3 mg/kg during the final 20 to 40 d of the finishing period followed by a minimum 3 d withdrawal period. This compound has the potential to increase animal performance, improve carcass weight and meat yield. Although significant information regarding the effects of duration of ZH supplementation and days on the feed of Bos taurus cattle has been provided, there is a lack of information relative to its effects on Bos indicus breeds such as Nellore cattle. The current study aimed to evaluate the effects of the duration of ZH supplementation and DOF on performance, carcass characteristics, and saleable meat yield of Nellore bulls. The HCW and total saleable meat yield linearly increased with the duration of ZH supplementation as well as when the length of the feedlot period increased. We recommend supplementing ZH for Nellore bulls at least for 20 days, independently of days on feed, to improve hot carcass weight, hindquarter, and saleable meat yields of Nellore bulls. Abstract This study evaluated the effects of the duration of ZH supplementation and days on feed (DOF) on performance, carcass characteristics, and saleable meat yield of Nellore young bulls. The fixed effects included the duration (0, 20, 30, or 40 d before slaughter plus a 3 d ZH withdrawal period—8.33 mg of ZH/kg of DM) and DOF (90 and 117 d). Feed efficiency (G:F) linearly increased when the duration of ZH supplementation increased (p < 0.01). Nellore bulls fed ZH had greater HCW (p < 0.01), dressing percentage (p < 0.01) and Longissimus muscle area (LMA) (p < 0.01), but less 12th-rib fat (p = 0.04) than the control group. The hot carcass weight (HCW) (p < 0.01), and dressing percentage increased linearly (p < 0.01) with the increase of duration of ZH supplementation. The HCW, ossification, and 12th-rib fat increased with DOF (p < 0.01). The ZH supplemented group had most of the individual cuts of hindquarters and total saleable meat increased compared with the control. Zilpaterol hydrochloride was effective in improving hot carcass weight, hindquarter, and saleable meat yields of Nellore bulls when fed for at least 20 d before slaughter, independently of days on feed.
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Affiliation(s)
- Mariana Caetano
- Davies Livestock Research Centre, Department of Animal and Veterinary Bioscience, School of Animal and Veterinary Sciences, Roseworthy Campus, The University of Adelaide, Roseworthy, SA 5371, Australia;
| | - Rodrigo S. Goulart
- Department of Animal Science, College of Animal Science and Food Engineering, University of São Paulo, Pirassununga 13635-900, SP, Brazil; (S.L.S.); (P.R.L.)
- Correspondence:
| | - Saulo L. Silva
- Department of Animal Science, College of Animal Science and Food Engineering, University of São Paulo, Pirassununga 13635-900, SP, Brazil; (S.L.S.); (P.R.L.)
| | - Paulo R. Leme
- Department of Animal Science, College of Animal Science and Food Engineering, University of São Paulo, Pirassununga 13635-900, SP, Brazil; (S.L.S.); (P.R.L.)
| | - Sérgio B. Pflanzer
- Department of Food Technology, Faculty of Food Engineering, The University of Campinas, Campinas 13083-862, SP, Brazil;
| | - Antonio C. R. dos Santos
- Department of Animal Science, College of Agriculture, University of São Paulo, Luiz de Queiroz, Piracicaba 13418-900, SP, Brazil; (A.C.R.d.S.); (D.P.D.L.)
| | - Dante P. D. Lanna
- Department of Animal Science, College of Agriculture, University of São Paulo, Luiz de Queiroz, Piracicaba 13418-900, SP, Brazil; (A.C.R.d.S.); (D.P.D.L.)
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Ribeiro FA, Lau SK, Pflanzer SB, Subbiah J, Calkins CR. Color and lipid stability of dry aged beef during retail display. Meat Sci 2020; 171:108274. [PMID: 32818818 DOI: 10.1016/j.meatsci.2020.108274] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 07/07/2020] [Accepted: 08/06/2020] [Indexed: 10/23/2022]
Abstract
The objective of this study was to determine color and lipid stability of steaks from dry-aged beef loins over 7 d of retail display (RD). Sixteen boneless strip loins were assigned to one of four treatments: wet-aging, dry aging at 50% relative humidity (RH), dry aging at 70% RH, or dry aging at 85% RH and aged for 42 days at 2 °C. Dry aging of beef resulted in decreased lightness (L*), redness (a*), and yellowness (b*) values and increased lipid oxidation compared to wet-aged counterparts (P < 0.05). Dry-aged steaks had greater discoloration (P < 0.05) than wet-aged steaks from d 4 to d 7 of RD. Results suggest that under prolonged RD, dry aging of beef has the potential to reduce color and lipid stability compared to wet aging and thus reduce display life. Color and lipid stability were not affected by RH during dry aging.
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Affiliation(s)
| | - Soon K Lau
- Department of Food Science and Technology, University of Nebraska, Lincoln, NE 68588-6205, USA; Department of Biological Systems Engineering, University of Nebraska, Lincoln, NE 68583-0726, USA
| | - Sérgio B Pflanzer
- School of Food Engineering, Department of Food Technology, University of Campinas, Campinas, São Paulo 13083-862, Brazil
| | - Jeyamkondan Subbiah
- Department of Food Science and Technology, University of Nebraska, Lincoln, NE 68588-6205, USA; Department of Biological Systems Engineering, University of Nebraska, Lincoln, NE 68583-0726, USA; Department of Food Science, University of Arkansas, Fayetteville, AR 72704, USA
| | - Chris R Calkins
- Department of Animal Science, University of Nebraska, Lincoln, NE 68583-0908, USA.
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Rodas-González A, Pflanzer SB, Garmyn AJ, Martin JN, Brooks JC, Knobel SM, Johnson BJ, Starkey JD, Rathmann RJ, de Felicio PE, Streeter MN, Yates DA, Hodgen JM, Hutcheson JP, Miller MF. Effects of postmortem calcium chloride injection on meat palatability traits of strip loin steaks from cattle supplemented with or without zilpaterol hydrochloride. J Anim Sci 2012; 90:3584-95. [PMID: 22851240 DOI: 10.2527/jas.2012-5159] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
An experiment was conducted to determine the effects of zilpaterol hydrochloride mM supplementation (ZH; 8.3 mg/kg on a DM basis for 20 d) and calcium chloride injection [CaCl(2), 200 at 5% (wt/wt) at 72 h postmortem] on palatability traits of beef (Bos taurus) strip loin steaks. Select (USDA) strip loins were obtained from control (no ZH = 19) and ZH-supplemented carcasses (n = 20). Right and left sides were selected alternatively to serve as a control (no INJ) or CaCl(2)-injected (INJ) and stored at 4°C. Before injecting the subprimals (72 h postmortem), 2 steaks were cut for proximate, sarcomere length, and myofibrillar fragmentation index (MFI) analyses. At 7 d postmortem each strip loin was portioned into steaks, vacuum packaged, and aged for the appropriate period for Warner-Bratzler shear force (WBSF; 7, 14, 21, and 28 d postmortem), trained sensory analysis (14 and 21 d postmortem), purge loss (7 d), and MFI (3, 7, 14, 21, and 28 d postmortem). Results indicated steaks from both ZH supplementation and INJ had reduced WBSF values as days of postmortem aging increased. The WBSF values of ZH steaks were greater (P < 0.05) than no ZH steaks at each postmortem aging period. The INJ steaks had lower WBSF values (P < 0.05) than non-injected steaks. A greater percentage (91 vs. 71%) of steaks had WBSF values < 4.6 kg from steers with no ZH supplementation at 7 d postmortem, but the percentage did not differ (P > 0.05) due to ZH at 14, 21, or 28 d or due to INJ at any aging period. Trained panelists rated tenderness less in ZH steaks than steaks with no ZH at 14 d and 21 d. However, INJ improved (P < 0.05) the tenderness ratings and flavor intensity of the trained panelists, compared with their non-injected cohorts at 21 d. Zilpaterol hydrochloride supplementation reduced (P < 0.05) MFI values, but INJ resulted in greater (P < 0.05) MFI values compared with no INJ. Subprimals from ZH and INJ showed greater purge loss (P < 0.05). Although no interactions were found with ZH and CaCl(2), injecting USDA Select strip loins from ZH-fed cattle can help reduce the normal WBSF variation as it does in steaks from non-ZH-fed cattle.
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Affiliation(s)
- A Rodas-González
- Department of Animal and Food Sciences, Texas Tech University, Lubbock 79409, USA
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