Phytase and nutrient-energy matrix: a strategic approach to enhancing the performance of broiler chickens fed a corn-soybean meal-based diet

Choi, Pok Su; Tajudeen, Habeeb; Mun, Jun Young; Ha, Sanghun; Hosseindoust, Abdolreza; Park, Serin; Park, Hye In; Neves Silvestre, Priscilla; Lokhande, Anushka; Ingale, Santosh; Kim, JinSoo

doi:.0.0.0

Article

https://doi.org/10.5713/ab.24.0565 [Accepted] Published online October 28, 2024.

Phytase and nutrient-energy matrix: a strategic approach to enhancing the performance of broiler chickens fed a corn-soybean meal-based diet

Pok Su Choi¹

, Habeeb Tajudeen¹

, Jun Young Mun¹

, Sanghun Ha¹

, Abdolreza Hosseindoust¹

, Serin Park¹

, Hye In Park¹

, Priscilla Neves Silvestre¹

, Anushka Lokhande¹, Santosh Ingale²

, JinSoo Kim^1,*

¹Department of Animal Industry Convergence, Kangwon National University, Chuncheon, 24341, Korea
²Advanced Enzymes Technologies Ltd, Thane, India

Correspondence: JinSoo Kim, Tel: +82-33-250-8614, Fax: +82-33-259-5572, Email: kjs896@kangwon.ac.kr

Received: 8 August 2024 • Revised: 30 August 2024 • Accepted: 10 October 2024

Abstract

Objective
This study examined the effects of a nutrient matrix with or without phytase on the performance of broiler chicken.
Methods
A total of 2000 day-old Ross 308 broiler chickens were assigned to 5 dietary treatments, with 10 broilers per replicate and 40 replicates per treatment. The experimental diets included 1. CON: A corn and soybean meal (SBM)-basal diet without phytase. 2, NC1: A corn-SBM-based diet with reduced nutrients, specifically 0.13% less phosphorus, 40 Kcal/kg less metabolizable energy (ME), and 0.30% less crude protein (CP), without phytase. 3, NC1+PHYT: NC1+500 FTU/kg phytase. 4, NC2: Another corn-SBM-based diet with greater nutrient reductions, including 0.16% less phosphorus, 55 Kcal/kg less metabolizable energy (ME), and 0.45% less crude protein (CP), without phytase. 5, NC2+PHYT: NC2+1000 FTU/kg phytase. Key results: In the pre-starter and overall phase, feed conversion ratio (FCR) was higher in NC2 and NC2+PHYT. In the starter phase, body weight gain (BWG) was lower in NC2 and NC2+PHYT. In the grower phases, BWG was lower in NC2, while FCR was higher. At d28, the digestibility of ash was higher in NC1+PHYT, while the digestibility of Ca and phosphorus were higher in NC1+PHYT and NC2+PHYT. At day 42, the digestibility of ash, Ca, and phosphorus were higher in NC1+PHYT and NC2+PHYT. The level of tibia ash was lower in NC2. The level of myo-inositol was lower in NC2 at d28, while the level of myo-inositol at d42 was lower in NC1 and NC2.
Conclusion
We concluded NC1+PHYT showed a higher growth performance comparable to CON, as against the lower performance observed in NC2, NC2+PHYT, and NC1.

Keywords: Animal Nutrition; Animal Physiology; Animal Production; Broilers; Digestion