1
|
Macelline SP, Godwin ID, Liu G, Restall J, Cantor DI, McInerney BV, Toghyani M, Chrystal PV, Selle PH, Liu SY. Transgenic, high-protein sorghums display promise in poultry diets in an initial comparison. Poult Sci 2024; 103:103698. [PMID: 38657523 PMCID: PMC11063504 DOI: 10.1016/j.psj.2024.103698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 03/17/2024] [Accepted: 03/26/2024] [Indexed: 04/26/2024] Open
Abstract
This study aimed to compare the inclusion of transgenic sorghums against commercially available sorghums on growth performance in broiler chickens. Isonitrogenous and isoenergetic diets were offered to a total 288 male Ross 308 broiler chickens from 14 to 35 d posthatch. Three dietary treatments were diets based on transgenic sorghums with a mean protein content of 154.7 g/kg and 5 treatments were based on commercially available sorghum hybrids with a mean protein content of 90.6 g/kg. Soybean meal inclusions in the commercial sorghum diets averaged 215 g/kg, which was reduced to 171 g/kg in the transgenic sorghum diets because of the higher protein contents. Overall growth performance was highly satisfactory, and commercial sorghums supported 2.55% (2,330 vs. 2,272 g/bird; P = 0.010) more weight gains and 2.74% (2,929 vs. 2,851 g/bird; P = 0.012) higher feed intakes; however, the transgenic sorghums supported a fractionally better FCR (1.255 vs 1.257; P = 0.826). There were no statistical differences in apparent jejunal and ileal starch and protein (N) digestibility coefficients between treatments. The transgenic sorghum diets generated slightly, but significantly, higher AME:GE ratios and AMEn, but the commercial sorghum diets generated 6.33% (235 vs. 221 g/kg; P < 0.001) greater breast meat yields. Apparent ileal digestibility coefficients of 16 amino acids averaged 0.839 and 0.832 for transgenic and commercial sorghum-based diets, respectively, without any significant differences in individual amino acids. This outcome suggests amino acid digestibilities of the transgenic sorghums may be inherently higher than commercial hybrid sorghums as the 25.7% higher average soybean meal inclusions would have advantaged amino acid digestibilities in commercial sorghum diets. The possibility that the digestibilities of amino acids in the kafirin component of transgenic sorghums was enhanced by modifications to the structure of kafirin protein bodies is discussed. In conclusion, transgenic sorghums with higher protein concentrations led to 20.5% reduction of soybean meal inclusions in broiler diets, and this change did not compromise feed conversion efficiency compared to standard commercial hybrid sorghums.
Collapse
Affiliation(s)
- Shemil P Macelline
- School of Life and Environmental Sciences, Faculty of Science, The University of Sydney, Sydney, New South Wales 2006; Poultry Research Foundation, The University of Sydney, Camden, New South Wales 2570, Australia
| | - Ian D Godwin
- Centre for Crop Science, Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Guoquan Liu
- Centre for Crop Science, Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Jemma Restall
- Centre for Crop Science, Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - David I Cantor
- Australian Proteome Analysis Facility, Macquarie University, Sydney, New South Wales, Australia
| | - Bernard V McInerney
- Australian Proteome Analysis Facility, Macquarie University, Sydney, New South Wales, Australia
| | - Mehdi Toghyani
- School of Life and Environmental Sciences, Faculty of Science, The University of Sydney, Sydney, New South Wales 2006; Poultry Research Foundation, The University of Sydney, Camden, New South Wales 2570, Australia
| | | | - Peter H Selle
- Poultry Research Foundation, The University of Sydney, Camden, New South Wales 2570, Australia; Sydney School of Veterinary Science, The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Sonia Yun Liu
- School of Life and Environmental Sciences, Faculty of Science, The University of Sydney, Sydney, New South Wales 2006.
| |
Collapse
|
2
|
Greenhalgh S, Macelline SP, Chrystal PV, Liu SY, Selle PH. Elevated branched-chain amino acid inclusions generate distinctly divergent growth performance responses in broiler chickens offered wheat- and/or sorghum-based, reduced-crude protein diets. Anim Feed Sci Technol 2022. [DOI: 10.1016/j.anifeedsci.2022.115446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
3
|
Greenhalgh S, Hamilton EJ, Macelline SP, Toghyani M, Chrystal PV, Liu SY, Selle PH. Dietary crude protein concentrations and L-carnitine inclusions interactively influence performance parameters of grower broiler chickens offered sorghum-based diets. Anim Feed Sci Technol 2022. [DOI: 10.1016/j.anifeedsci.2022.115392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
|
4
|
Pulse electric field assisted process for extraction of Jiuzao glutelin extract and its physicochemical properties and biological activities investigation. Food Chem 2022; 383:132304. [DOI: 10.1016/j.foodchem.2022.132304] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 01/24/2022] [Accepted: 01/29/2022] [Indexed: 01/10/2023]
|