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Evaluation of a monoglyceride blend on broiler performance during necrotic enteritis challenge in battery cages

Published: February 7, 2023
By: Danielle Graham* 1, Jundi Liu 2, Ross Wolfenden 2, Billy Hargis 1 / 1 Department of Poultry Science, University of Arkansas Division of Agriculture; 2 Animal Nutrition BU, Eastman Chemical Company.
The objective of this study was to evaluate the impact of an Eastman monoglyceride blend on broiler performance under a 25-day necrotic enteritis challenge model in battery cages. A total of 320 one-day old male Cobb broilers were obtained from a local hatchery and randomly distributed into 4 groups with 10 chicks per cage and 8 replicates per treatment: (1) non-challenged control (NCC); (2) challenged control (CC); (3) challenged control + 500 mg/kg monoglyceride blend (low-dose); (4) challenged control + 1,000 mg/kg monoglyceride blend (high-dose). Upon arrival, groups 2-4 were orally inoculated with 2.0 x 107 CFU/0.25 mL/bird Salmonella Typhimurium. On d 18, the challenged group birds were orally inoculated with ~2,000 Eimeria maxima oocysts/1 mL/bird, followed by Clostridium perfringens on d 22 (1.0 x 108 CFU/1 mL/bird) and d 23 (1.3 x 107 CFU/1 mL/bird). Total cage and feed weights were assessed on d 7, 14, 18, and 25. On d 25, 20 chicks per treatment (2-3 birds per cage) were randomly selected to evaluate intestinal lesion scores. Data were analyzed by ANOVA model with significance deemed at p < 0.05. Means were separated using Tukey’s HSD test. On d 14, results showed that the monoglyceride blend at the high-dose (FCR = 1.179) numerically improved the FCR compared to the CC (FCR = 1.296). From d 1 to 25, chicks from the CC (FCR = 1.645) had significantly higher FCR than the NCC (FCR = 1.403), and monoglyceride blend at both low- (FCR = 1.546) and highdose (FCR = 1.531) significantly improved the cumulative FCR compared to the CC (FCR = 1.645). Additionally, monoglyceride blend at high-dose also showed significantly higher BW gain compared to the CC group on d 25. However, no significant differences were observed for intestinal lesion scores between treatments. Adding the monoglyceride blend at both 500 mg/kg and 1,000 mg/kg significantly improved 25 d FCR and improved BW gain under the necrotic enteritis challenge used in the present study.
Key Words: monoglyceride blend, growth, coccidiosis, necrotic enteritis, broiler.
Presented at the International Poultry Scientific Forum, during IPPE 2023, at the Georgia World Congress Center, Atlanta.
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Danielle Graham
University of Arkansas (USA)
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