Effects of dietary probiotic supplementation on ileal digestibility of nutrients and growth performance in 1‐ to 42‐day‐old broilers |
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| Authors: | Li‐Li Li Zheng‐Ping Hou Tie‐Jun Li Guo‐Yao Wu Rui‐Lin Huang Zheng‐Ruan Tang Cheng‐Bo Yang Joshua Gong Hai Yu Xiang‐Feng Kong Eric Pan Zheng Ruan Wu‐Ying Xhu Ze‐Yuan Deng Mingrong Xie Jun Deng Fu‐Gui Yin Yu‐Long Yin |
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| Affiliation: | 1. Laboratory of Animal Nutrition and Health and Key Laboratory of Subtropical Agro‐ecology, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha, Hunan 410125, P.O. Box 10, Hunan 410125, P.R. China;2. Department of Animal Science, Texas A&M University, College Station, TX 77843‐2471, USA;3. Food Research Program, Agriculture and Agri‐Food Canada, Guelph, Ontario, N1G 5C9, Canada;4. CK Life Sciences International Inc., Tai Po Industrial Estate, 2 Dai Fu Street, Hong Kong, P.R. China;5. The key Laboratory of Food Science of Ministry of Education of China, Department of Food Science and Engineering, Nanchang University, Nanchang 330047, P.R. China |
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| Abstract: | This study was conducted to determine the effects of dietary probiotic supplementation on the ileal digestibilities of nutrients and growth performance in broilers. Two thousand, eight hundred and eighty male broiler chickens at 1 day of age were randomly allotted to eight treatment groups and fed for 6 weeks the maize–soybean meal‐based diets containing 0, 0.2, 0.4 or 0.6% AgiPro A100® (a probiotic) and 0 or 6 ppm flavomycin (an antibiotic). This well‐established antibiotic was used as a positive control for the efficacy of AgiPro A100®. Dietary supplementation with either the probiotic or the antibiotic alone did not affect (P > 0.05) feed intake or average daily gain (ADG) of broilers between days 1 and 42 of life. However, there was a significant antibiotic × probiotic interaction effect (P < 0.05) in increasing ADG during the entire experimental period. Notably, dietary supplementation with the probiotic or the antibiotic consistently improved (P < 0.05) the ileal digestibilities of crude protein and most amino acids in 21‐ and 42‐day‐old chickens. Supplementing the probiotic to broiler diets also improved (P < 0.05) the ileal digestibilities of dry matter, energy, calcium and phosphate in the birds. Collectively, these results indicated that AgiPro A100® is an effective alternative to flavomycin in chicken production. Copyright © 2007 Society of Chemical Industry |
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| Keywords: | probiotic ileal digestibilities growth performance broilers |
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