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Sahar NU, Shoaib M, Mirza MA, Bhatti SA, Ashraf S, Aslam N, Roobi A, Asif MA. Production performance, protein digestibility, gut health and economic efficiency in sexed broilers with super dozing of lysine. Trop Anim Health Prod 2023; 55:40. [PMID: 36645529 DOI: 10.1007/s11250-023-03450-5] [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: 07/08/2022] [Accepted: 01/04/2023] [Indexed: 01/17/2023]
Abstract
Modern commercial broiler is growing very rapidly and its amino acid requirement is not fulfilling. An experimental trial was conducted to study the effect of super-dosing of lysine in fish meal-based diets (50% fish meal and 50% SBM) on production performance, protein digestibility and economic efficiency in male and female broiler chickens. Four hundred and eighty (480) one-day-old male and female broiler chicks were divided into forty experimental units of 12 birds each. Five levels of dietary lysine i.e. 90, 100, 110, 120 and 130% of Ross-308 recommendation in male and female birds were separately used. Weight gain and feed intake were higher (p < 0.05) in birds received 100 and 110% recommended lysine than other levels. Feed conversion ratio and EPEF were improved (p < 0.05) in birds received 100% recommended lysine than other levels. Higher (p < 0.05) CP digestibility and lower production cost per kg live weight were noted for birds fed diet containing lysine 100, 110 and 120% than 90 and 130%. Male birds had higher (p < 0.05) WG, FI, EPEF, protein digestibility and lower production cost per kg live weight than female birds. In conclusion, lysine levels below 100% and above 110% of Ross recommended levels had poor production performance, protein digestibility and economic efficiency.
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Affiliation(s)
- Najam Us Sahar
- Institute of Animal and Dairy Sciences, Faculty of Animal Husbandry, University of Agriculture, Faisalabad, 38040, Punjab, Pakistan
| | - Muhammad Shoaib
- Institute of Animal and Dairy Sciences, Faculty of Animal Husbandry, University of Agriculture, Faisalabad, 38040, Punjab, Pakistan
| | - Muhammad Aslam Mirza
- Institute of Animal and Dairy Sciences, Faculty of Animal Husbandry, University of Agriculture, Faisalabad, 38040, Punjab, Pakistan
| | - Shaukat Ali Bhatti
- Institute of Animal and Dairy Sciences, Faculty of Animal Husbandry, University of Agriculture, Faisalabad, 38040, Punjab, Pakistan.
| | - Shahzad Ashraf
- Institute of Animal and Dairy Sciences, Faculty of Animal Husbandry, University of Agriculture, Faisalabad, 38040, Punjab, Pakistan
| | - Noreen Aslam
- Institute of Physiology and Pharmacology, Faculty of Veterinary Science, University of Agriculture, Faisalabad, 38040, Punjab, Pakistan
| | - Alishbah Roobi
- Institute of Physiology and Pharmacology, Faculty of Veterinary Science, University of Agriculture, Faisalabad, 38040, Punjab, Pakistan
| | - Muhammad Arslan Asif
- Institute of Animal and Dairy Sciences, Faculty of Animal Husbandry, University of Agriculture, Faisalabad, 38040, Punjab, Pakistan
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