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ISSN : 1225-2964(Print)
ISSN : 2287-3317(Online)
Annals of Animal Resource Sciences Vol.28 No.3 pp.97-107
DOI : https://doi.org/10.12718/AARS.2017.28.3.97

Effects of Supplementation of Multienzymes in Diets Containing Different Energy Levels on Growth Performance, Nutrient Digestibility, Blood Metabolites, Microbiota and Intestinal Morphology of Broilers

Young Ho Shim1#, Jin Soo Kim2#, Abdolreza Hosseindoust2, Santosh Laxman Ingale3, Yo Han Choi2, Min Ju Kim2, Seung Min Ohh2, Hyung Bin Ham2 and Byung Jo Chae2*
1Sajo Bio Feed Co., Ltd, 2Department of Animal Life Science, College of Animal Life Sciences, Kangwon National University, 3Advanced Enzyme Technologies Ltd

Abstract

The present study was conducted to investigate the effects on growth performance, nutrient digestibility, and gut health of broiler chickens when a dietary supplementation of multienzymes was added to diets, containing different energy levels. A total of 480 broiler chickens of similar body weight (Ross 308, 1-day-old) were randomly subjected to four treatments. The dietary treatments included a corn-soybean meal-based diet supplemented with: multienzyme (amylase+protease+ mannanase+xylanase+phytase), 0.05% enzyme, and different energy levels (3010 and 3060 kcal/kg). The experimental diets were fed to the chicks in a mash form for 35 days in two phases (1–21 d, phase I; and 22–35 d, phase II). During the overall period, chicks fed with diets supplemented with multienzymes had a better weight gain (p<0.05) and feed conversion ratio (FCR) than those fed with diets without enzymes. There was no difference in the growth rate and FCR among the chicks fed with diets supplemented with enzymes, even though the dietary energy levels were different. The apparent fecal and ileal digestibility of dry matter, gross, crude protein, calcium, and phosphorus were significantly enhanced (p<0.05). The population of cecal and ileal Lactobacillus spp. was significantly increased (p<0.05), and Clostridium spp. and coliforms were significantly decreased (p<0.05) in diets supplemented with enzymes. Villus height and villus height to crypt depth ratio in the small intestine was also significantly enhanced (p<0.05) in diets supplemented with enzymes. In conclusion, multienzyme supplementation had positive effects on the weight gain of broilers, FCR, digestibility of nutrients, and on the growth of intestinal microbiota.

심영호1# · 김진수2# · Hosseindoust Abdolreza2 · Santosh Laxman Ingale3 · 최요한2 · 김민주2
오승민2 · 함형빈2 · 채병조2*
㈜사조바이오피드1, 강원대학교 동물생명과학대학2, Advanced Enzyme Technologies Ltd.3

초록

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