Effects of Different levels of Zinc in the Performance and Meat Zinc Contents of Broilers
DOI:
https://doi.org/10.7719/jpair.v12i1.212Keywords:
Animal Nutrition, Fortification, Meat, Zinc, Career in cruise tourism; cruise industry; mixed method, PhilippinesAbstract
Zinc is one of the most deficient microminerals. For poultry, NRC (1994) recommended 40 ppm only but, commercial feeds contain more than 100 ppm resulting to toxicity. Zinc oxide is commonly used inorganic forticant but, its safety is questionable compared to organic counterpart. Generally, the study aimed to determine the effects of different levels of zinc oxide and zinc methionine in the performance of broilers and their meat content at 36 and 42 days. To address the latter, two experiments (experiment 1, zinc oxide and experiment 2, zinc methionine) were conducted and gathered data were analysed using ANOVA. Results showed that in both experiments, the performance and meat zinc contents were not affected but, the parts were affected showing highest zinc content in the liver, followed by the thigh and legs, and the wings. Lowest amount was noted in the breast. Fortification, up to 36 days of feeding was found to be enough. In fortification programs, it is recommended to use organic minerals.
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References
Browning,JD,R.S Mac Donald, W.H.Thorton, and BL O’Dell 1998 Reduced food intake in zinc deficient rats is normalized by megestrol acetate but not by insulin like growth factor-1.J Nutrition 128: 136-42.
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Copyright (c) 2013 Maria Fe S. Bulao, Sonia P. Acda, Geraldine C. Sanchez
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Open Access. This article published by JPAIR Multidisciplinary Research is licensed under a Creative Commons Attribution-Noncommercial 4.0 International (CC BY-NC 4.0). You are free to share (copy and redistribute the material in any medium or format) and adapt (remix, transform, and build upon the material). Under the following terms, you must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. You may not use the material for commercial purposes.
