Feeding two single strain probiotic bacteria and wheat bran failed to modify the production traits but altered some gut characteristics in broiler chickens

Autor: Nikoletta Such, Andor MOLNÁR, Valéria Farkas, László PÁL, Ferenc HUSVÉTH, Ilona KOLTAY, Mohamed RAWASH, Ákos MEZŐLAKI, Károly DUBLECZ
Jazyk: Bulgarian<br />Czech<br />English<br />Croatian<br />Hungarian<br />Polish<br />Slovak
Rok vydání: 2020
Předmět:
Zdroj: Journal of Central European Agriculture, Vol 21, Iss 3, Pp 499-507 (2020)
Druh dokumentu: article
ISSN: 1332-9049
DOI: 10.5513/JCEA01/21.3.2745
Popis: The effects of a single strain lactic acid producing bacteria (LAB) (Lactobacillus farciminis 5x109 CFU/kg) and a single strain butyric acid producing bacteria (BAB) (Clostridium butyricum 2.5x109 CFU/kg) with or without wheat bran supplementation (WB), were investigated on the production traits and on several gut characteristics of broiler chickens. In total, 576 male Ross 308 day-old chickens were divided into 24 floor pens and fed a corn-soybean based control diet (C) and five other probiotic or wheat bran supplemented diets (LAB, BAB, LAB+WB, BAB+WB, C+WB) in 4 replicates. The wheat bran content of the starter, grower and finisher diets were 3, 6 and 6%, respectively. During the 37 day long fattening period, growth rate, feed intake were recorded and feed conversion was calculated. At the end of the trial, 8 chickens per treatment were slaughtered and the following parameters investigated: trypsin, lipase and amylase activity of the jejunal chyme, ileal histomorphology and Lactobacillus load. None of the treatments resulted significant differences in the production traits (P>0.1). BAB supplementation tended to decrease digestive enzyme activity. Feeding WB in all combination increased crypt depth (P=0.002), ileal muscle layer thickness (P=0.001) and decreased the villi: crypt ratio (P=0.037) in the ileum.
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