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Common and diet-specific metabolic pathways underlying residual feed intake in fattening Charolais yearling bulls. Sci Rep 2021; 11:24346. [PMID: 34934071 PMCID: PMC8692463 DOI: 10.1038/s41598-021-03678-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Accepted: 12/01/2021] [Indexed: 02/06/2023] Open
Abstract
Residual feed intake (RFI) is one of the preferred traits for feed efficiency animal breeding. However, RFI measurement is expensive and time-consuming and animal ranking may depend on the nature of the diets. We aimed to explore RFI plasma biomarkers and to unravel the underlying metabolic pathways in yearling bulls fed either a corn-silage diet rich in starch (corn diet) or a grass-silage diet rich in fiber (grass diet). Forty-eight extreme RFI animals (Low-RFI, n = 24, versus High-RFI, n = 24, balanced per diet) were selected from a population of 364 Charolais bulls and their plasma was subjected to a targeted LC-MS metabolomic approach together with classical metabolite and hormonal plasma analyses. Greater lean body mass and nitrogen use efficiency, and lower protein turnover were identified as common mechanisms underlying RFI irrespective of the diet. On the other hand, greater adiposity and plasma concentrations of branched-chain amino acids (BCAA) together with lower insulin sensitivity in High-RFI animals were only observed with corn diet. Conversely, greater plasma concentrations of BCAA and total triglycerides, but similar insulin concentrations were noted in efficient RFI cattle with grass diet. Our data suggest that there are diet-specific mechanisms explaining RFI differences in fattening Charolais yearling bulls.
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Junghans P, Voigt J, Jentsch W, Derno M. A novel doubly labelled 13C, 15N amino acid method for measuring energy and protein metabolism in man. ISOTOPES IN ENVIRONMENTAL AND HEALTH STUDIES 2019; 55:588-606. [PMID: 31648560 DOI: 10.1080/10256016.2019.1681990] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Accepted: 10/07/2019] [Indexed: 06/10/2023]
Abstract
A novel doubly [1-13C, α-15NH2]-labelled amino acid method (DLAAM) is presented for the determination of the CO2 production (RCO2) and energy expenditure in humans. This method is based on the simultaneous administration of [1-13C]glycine and [15N]glycine followed by the measurement of excretion kinetics of breath 13CO2 and urinary 15N. The basic idea of the DLAAM is that the unknown 13C recovery RF(13C) of the 1-13C amino acid, essential for the calculation of the net CO2 production, can be approximated by the easily measureable 15N recovery RF(15N) of the α-15NH2 labelled amino acid. In four healthy adult men (76-97 kg) the DLAAM was tested parallel to the IC and in one man (74 kg) parallel to the DLWM. Using the approximation RF(13C) ≈ RF(15N) the RCO2 (in l CO2 d-1) was calculated to 387.0 ± 30.3 (DLAAM) vs. 382.8 ± 22.6. (IC). The Bland-Altman plot shows that the difference between the DLAAM and IC of individual RCO2 is within the 95 % confidence interval (mean ± 2 SD): +4.3 ± 37.5 l CO2 d-1. We conclude that the DLAAM and IC may be used interchangeably. The physical activity level (PAL) was calculated based on the DLAAM vs. DLWM to about 1.5.
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Affiliation(s)
- Peter Junghans
- Institute of Nutritional Physiology "Oskar Kellner", Leibniz Institute for Farm Animal Biology (FBN), Dummerstorf, Germany
| | - Jürgen Voigt
- Institute of Nutritional Physiology "Oskar Kellner", Leibniz Institute for Farm Animal Biology (FBN), Dummerstorf, Germany
| | - Werner Jentsch
- Institute of Nutritional Physiology "Oskar Kellner", Leibniz Institute for Farm Animal Biology (FBN), Dummerstorf, Germany
| | - Michael Derno
- Institute of Nutritional Physiology "Oskar Kellner", Leibniz Institute for Farm Animal Biology (FBN), Dummerstorf, Germany
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Liu Y, Albrecht E, Dannenberger D, Hammon HM, Kuehn C, Sauerwein H, Yang R, Zhao Z, Maak S. Retinol binding protein 4 abundance in plasma and tissues is related to body fat deposition in cattle. Sci Rep 2019; 9:8056. [PMID: 31147589 PMCID: PMC6542835 DOI: 10.1038/s41598-019-44509-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Accepted: 05/17/2019] [Indexed: 01/10/2023] Open
Abstract
Retinol binding protein 4 (RBP4) facilitates the transport of retinol in the body but is also an adipokine and fatty acid transporter. Our study was aimed at investigating the associations between RBP4 abundance and fat deposition in cattle. Blood samples of 246 crossbred bulls were taken at 8 months of age and at slaughter at 18 months of age for the determination of RBP4, hormone levels, and fatty acid composition. Significant correlations between plasma RBP4 abundance at 8 months of age and carcass traits at 18 months of age were detected (e.g., r = 0.3; P < 0.001 to carcass fat). Furthermore, RBP4 abundances in the plasma and subcutaneous fat were higher (P < 0.05) in bulls with increased fat deposition, whereas the liver RBP4 expression was not (P > 0.05). Retinol binding protein 4 was immunohistochemically localized in or close to adipocytes within muscle and adipose tissue and in liver stellate cells but not in hepatocytes. Overall, our results indicate that increased RBP4 levels were associated with increased fat deposition and altered fatty acid composition, but not with altered glucose tolerance, in crossbred bulls. Moreover, our results suggest that adipose-tissue-derived RBP4 may contribute to the circulating RBP4 level.
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Affiliation(s)
- Yinuo Liu
- College of Animal Science, Jilin University, Changchun, Jilin, 130062, P.R. China.,Institute of Muscle Biology and Growth, Leibniz Institute for Farm Animal Biology (FBN), 18196, Dummerstorf, Germany
| | - Elke Albrecht
- Institute of Muscle Biology and Growth, Leibniz Institute for Farm Animal Biology (FBN), 18196, Dummerstorf, Germany.
| | - Dirk Dannenberger
- Institute of Muscle Biology and Growth, Leibniz Institute for Farm Animal Biology (FBN), 18196, Dummerstorf, Germany
| | - Harald M Hammon
- Institute of Nutritional Physiology "Oskar Kellner", Leibniz Institute for Farm Animal Biology (FBN), 18196, Dummerstorf, Germany
| | - Christa Kuehn
- Institute of Genome Biology, Leibniz Institute for Farm Animal Biology (FBN), 18196, Dummerstorf, Germany
| | - Helga Sauerwein
- Institute for Animal Science, Physiology and Hygiene Unit, University of Bonn, 53115, Bonn, Germany
| | - Runjun Yang
- College of Animal Science, Jilin University, Changchun, Jilin, 130062, P.R. China
| | - Zhihui Zhao
- College of Animal Science, Jilin University, Changchun, Jilin, 130062, P.R. China.,College of Agriculture, Guangdong Ocean University, Zhanjiang, 523088, P.R. China
| | - Steffen Maak
- Institute of Muscle Biology and Growth, Leibniz Institute for Farm Animal Biology (FBN), 18196, Dummerstorf, Germany
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González-Grajales LA, Pieper L, Kremer J, Staufenbiel R. Influence of food deprivation on intravenous glucose tolerance test traits in Holstein Friesian heifers. J Dairy Sci 2017; 100:7710-7719. [DOI: 10.3168/jds.2016-12133] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2016] [Accepted: 05/11/2017] [Indexed: 12/15/2022]
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