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Journal of Animal Science and Technology
Korean Society of Animal Science and Technology

J Anim Sci Technol

pISSN: 2672-0191, eISSN: 2055-0391

DOI: https://doi.org/10.5187/jast.2024.e57

Article

Effects of polyphosphates with different chain lengths on digestive organ weight, carcass quality, and immune response, and intestinal microflora in broilers

Yi-Qiang Chang1, Seung-Gyu Moon1, Yan-Qing Wang1, Jong-Seok Oh1, Sang-Woo Jeon1, Ah-Ran Lee2, Soo-Hyun Kim3, Soo-Ki Kim1,*
1Department of Animal Science and Technology, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Republic of Korea , Seoul 252059, Korea.
2Animal Resources Research Center, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Republic of Korea, Seoul 252059, Korea.
3Laboratory of Cytokine Immunology, College of Veterinary Medicine, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Republic of Korea, Seoul 252059, Korea.
*Corresponding Author: Soo-Ki Kim, Department of Animal Science and Technology, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Republic of Korea , Seoul 252059, Korea, Republic of. E-mail: sookikim@konkuk.ac.kr.

© Copyright 2024 Korean Society of Animal Science and Technology. This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Received: Apr 10, 2024; Revised: May 25, 2024; Accepted: May 28, 2024

Published Online: May 29, 2024

Abstract

Physiological effects of polyphosphates with different chain lengths were unknown in poultry. Broilers were used as experimental subjects to observe the effects caused by SCPP (Short chain polyphosphates, P3), MCPP (Medium chain polyphosphates, P14), and LCPP (Long chain polyphosphates, P130). MCPP showed most strong antibacterial activity of<italic> Shigella sonnei, Pseudomonas aeruginosa, Salmonella enterica </italic>ser. Pullorum, and <italic>E. coli </italic>O157:H7. SCPP reduces the level of triglycerides in the blood and increases the length of the jejunum. Intervention of MCPP and LCPP induced cecum IL-1β expression involved in the regulation of autoimmune inflammation. In cecum, SCPP increased the number of <italic>L</italic><italic>actobacilli</italic> while MCPP and LCPP significantly decreasing the number of <italic>Shigella</italic><italic>,</italic><italic> Salmonella</italic> and <italic>Coliform</italic> bacteria. SCPP, MCPP, and LCPP improved the intestinal microflora with abundance of beneficial bacteria such as <italic>Faecalibacterium</italic>,<italic> Phocaeicola,</italic> and<italic> Barnesiella</italic> but with reduced <italic>Bacteroides</italic>. In addition, SCPP, MCPP, and LCPP did not adversely affect the meat quality of broilers. The antimicrobial properties of SCPP, MCPP, and LCPP can help to improve the intestinal environment and enhance immune properties. Based on the comparison of different length polyphosphates in broiler chickens, it is suggested that MCPP is more effective compared to SCPP and LCPP as antimicrobial feed additives.

Keywords: Polyphosphate; Antimicrobial activity; Anti-inflammation; Broilers; Microbiota