Effects of Low Energy Diet Supplemented with Complex Enzyme on Growth Performance, Intestinal Mucosa Morphology and Digesta Viscosity of Broilers

TANG Hai; GAO Xiuhua; YAO Bin; LI Xuejun; WANG Xiaorui

doi:10.3969/j.issn.1006-267x.2014.01.025

2014 , Vol. 26 >Issue 1: 190 - 196

DOI: https://doi.org/10.3969/j.issn.1006-267x.2014.01.025

Feed Science and Technology

Effects of Low Energy Diet Supplemented with Complex Enzyme on Growth Performance, Intestinal Mucosa Morphology and Digesta Viscosity of Broilers

TANG Hai ,
GAO Xiuhua ,
YAO Bin ,
LI Xuejun ,
WANG Xiaorui

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1. Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China;
2. National Engineering Research Center of Biological Feed, Beijing 100081, China

Received date: 2013-07-31

Online published: 2013-12-24

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Abstract

This experiment was conducted to investigate the effects of low energy diet supplemented with compound enzyme on growth performance, intestinal mucosa morphology and digesta viscosity of broilers. Three hundred and twenty one-day-old broilers were randomly assigned to four groups with eight replicates in each group and ten broilers in each replicate. The positive control group (group Ⅰ) was fed a corn-soybean meal normal diet. The diet of negative control group (group Ⅱ) was reduced by 210 kJ/kg metabolizable energy, and the content of miscellaneous meal and wheat was increased in this group. The normal additive dosage of enzyme group (group Ⅲ) and high additive dosage of enzyme group (group Ⅳ) were fed the negative control group diet supplemented with 0.02% and 0.20% compound enzyme, respectively. The experiment lasted for 42 days. The results showed that the ratio of feed to gain in group Ⅱ was significantly higher than that in group Ⅳ (P<0.01); the ratio of feed to gain in groups Ⅰ and Ⅲ was significantly lower than that in group Ⅲ (P<0.05). The villus height in groups Ⅰ and Ⅳ was significantly higher than that in other two groups (P<0.01), and the villus height in group Ⅱ was significantly lower than that in group Ⅲ (P<0.05). The crypt depth in group Ⅱ was significantly higher than that in other three groups (P<0.01), and the crypt depth in group Ⅳ was significantly lower than that in groups Ⅰ and Ⅲ (P<0.05). The villus height to crypt depth (V/C) in group Ⅳ was significantly higher than that in other three groups (P<0.05), and the V/C in group Ⅱ was significantly lower than that in groups Ⅰ and Ⅲ (P<0.05). There was no significant difference in mucosa thickness among all groups (P>0.05). The digesta viscosity in group Ⅳ was significantly lower than that in group Ⅱ (P<0.05). In conclusion, the diet supplemented with 0.02% and 0.20% complex enzyme can improve the growth performance, intestinal mucosa morphology and digesta viscosity of broilers, and supplemented with 0.20% complex enzyme is better.

Key words： broiler; complex enzyme; growth performance; intestinal mucosa morphology; digesta viscosity

Cite this article

TANG Hai , GAO Xiuhua , YAO Bin , LI Xuejun , WANG Xiaorui . Effects of Low Energy Diet Supplemented with Complex Enzyme on Growth Performance, Intestinal Mucosa Morphology and Digesta Viscosity of Broilers[J]. Chinese Journal of Animal Nutrition, 2014 , 26(1) : 190 -196 . DOI: 10.3969/j.issn.1006-267x.2014.01.025

References

[1] AO T Y.Using exogenous enzymes to increase the nutritional value of soybean meal in poultry diet[M/OL]//SHEMY H A.Soybean and nutrition.New York:Open Access Technology International, Inc., 2011:201-214[2011-09-12].http://www.intechopen.com/books/soybean-and-nutrition/using-exogenous-enzymes-to-increase-the-nutritional-value-of-soybean-meal-in-poultry-diet.

[2] KHATTAK F M, PASHA T N, HAYAT Z, et al.Enzymes in poultry nutrition[J].Journal of Animal and Plant Sciences, 2006, 16(1/2):1-7.

[3] CHOCT M.Enzymes for the feed industry:past, present and future[J].World's Poultry Science Journal, 2006, 62(1):5-16.

[4] BEDFORD M R, SCHULZE H.Exogenous enzymes for pigs and poultry[J].Nutrition Research Reviews, 1998, 11(1):91-114.

[5] 丁雪梅, 张克英.小麦-豆粕型日粮添加木聚糖酶对艾维茵肉鸡免疫指标、肠道形态和微生物菌群的影响[J].动物营养学报, 2009, 21(6):931-937.

[6] 石学刚.木聚糖酶添加量与DDGS配比对肉鸡生产性能和养分利用的影响[D].硕士学位论文.兰州:甘肃农业大学, 2009:23.

[7] WANG Z R, QIAO S Y, LU W Q, et al.Effects of enzyme supplementation on performance, nutrient digestibility, gastrointestinal morphology, and volatile fatty acid profiles in the hindgut of broilers fed wheat-based diets[J].Poultry Science, 2005, 84(6):875-881.

[8] 中华人民共和国国家质量监督检验检疫总局.GB/T 23527—2009蛋白酶制剂[S].北京:中国标准出版社, 2009.

[9] 王章存, 刘卫东, 王雷.复合酶和植酸酶对商品肉鸡生产性能及环境的影响[J].中国农学通报, 2006, 22(10):41-43.

[10] YU B, CHUNG T K.Effects of multiple-enzyme mixtures on growth performance of broilers fed corn-soybean meal diets[J].Journal of Applied Poultry Research, 2004, 13(2):178-182.

[11] SELLE P H, CADOGAN D J, RU Y J, et al.Impact of exogenous enzymes in sorghum-or wheat-based broiler diets on nutrient utilization and growth performance[J].International Journal of Poultry Science, 2010, 9(1):53-58.

[12] 李德雪, 栾维民, 岳占碰.动物组织学与胚胎学[M].长春:吉林人民出版社, 2003:135.

[13] 马玉龙, 许梓荣.金霉素对肉鸡生长、肠道菌群和细菌酶、肠组织形态的影响[J].浙江大学学报:农业与生命科学版, 2005, 31(4):507-512.

[14] ONDERCI M, SAHIN N, SAHIN K, et al.Efficacy of supplementation of α-amylase-producing bacterial culture on the performance, nutrient use, and gut morphology of broiler chickens fed a corn-based diet[J].Poultry Science, 2006, 85(3):505-510.

[15] 丁雪梅, 张克英.小麦-豆粕型日粮添加木聚糖酶对艾维茵肉鸡免疫指标、肠道形态和微生物菌群的影响[J].动物营养学报, 2009, 21(6):931-937.

[16] MATHLOUTHI N, LALLS J P, JUSTE C, et al.Xylanase and β-glucanase supplementation improve conjugated bile acid fraction in intestinal contents and increase villus size of small intestine wall in broiler chickens fed a rye-based diet[J].Journal of Animal Science, 2002, 80(11):2773-2779.

[17] DE SILVA S, HESSELMAN K, MAN P.Effects of water and β-glucanase treatment on non-starch polysaccharides in endosperm of low and high viscous barley[J].Swedish Journal of Agricultural Research, 1983, 13:211-219.

[18] CLASSEN H L, CAMPBELL G L, ROSSNAGEL B G, et al.Studies on the use of hulless barley in chick diets:deleterious effects and methods of alleviation[J].Canadian Journal of Animal Science, 1985, 65(3):725-733.

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