Korean Journal of Agricultural Science (Korean J. Agric. Sci.; KJOAS)
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Biswas S, Dang DX, Kim IH. 2024. Weaning pig performance can be enhanced by replacing dietary inorganic copper and zinc with glycine or methionine-chelated copper and zinc. Korean Journal of Agricultural Science 51:53-61.
Korean Journal of Agricultural Science (Korean J. Agric. Sci.) 2024 March, Volume 51, Issue 1, pages 53-61. https://doi.org/10.7744/kjoas.510105
Received on 12 September 2023, Revised on 13 December 2023, Accepted on 15 December 2023, Published on 1 March 2024.
Sarbani Biswas, De Xin Dang, In Ho Kim*
Department of Animal Resource and Science, Dankook University, Cheonan 31116, Korea
*Corresponding author: inhokim@dankook.ac.kr
A total of 180 21-day-old weaning pigs ([Yorkshire × Landrace] × Duroc) with an initial body weight of 6.44 ± 0.01 kg were randomly assigned to 9 treatments for evaluating the effects of replacing dietary inorganic copper (Cu) and zinc (Zn) with glycine (Gly) or methionine (Met)chelated Cu and Zn on growth performance and nutrient digestibility. The experimental period was 35 days. There were four replicated pens per treatment, with five pigs (three males and two females) per pen. Dietary treatments consisted of a basal diet (CON), in which the sources of Cu and Zn were in inorganic form. The inorganic Cu and Zn in the basal diet were replaced by glycine-chelated (GC) and methionine-chelated (MC) Cu and Zn by 30, 50, 70, or 100% to form the GC1, GC2, GC3, GC4, or MC1, MC2, MC3, MC4 groups. The 100% replacement of dietary inorganic Cu and Zn with GC or MC increased (p < 0.05) average daily gain, average daily feed intake, and gain-to-feed ratio. The complete replacement of dietary inorganic Cu and Zn with GC or MC led to enhanced (p < 0.05) digestibility of dry matter, nitrogen, Cu and Zn. Thus, the replacement of inorganic Cu and Zn with GC or MC can improve the growth efficiency and nutrient utilization of weaning pigs.
amino acid chelated organic mineral, growth efficiency, inorganic mineral, nutrient utilization, weaning pig
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Sarbani Biswas, https://orcid.org/0000-0001-9762-807X
De Xin Dang, https://orcid.org/0000-0002-9672-8922
In Ho Kim, https://orcid.org/0000-0001-6652-2504
No potential conflict of interest relevant to this article was reported.