Effects of Different Processing of Wheat on Nutrients Digestibility, Digestive Enzyme Activities and Serum Metabolite Contents of Beef Cattle

LI Zhen; WAN Fachun; LIU Xiaomu; JIANG Shuzhen; YANG Zaibin; YANG Weiren; ZHANG Guiguo; ZHANG Xianglun

doi:10.3969/j.issn.1006-267x.2013.06.014

2013 , Vol. 25 >Issue 6: 1229 - 1236

DOI: https://doi.org/10.3969/j.issn.1006-267x.2013.06.014

Ruminant Nutrition

Effects of Different Processing of Wheat on Nutrients Digestibility, Digestive Enzyme Activities and Serum Metabolite Contents of Beef Cattle

LI Zhen ,
WAN Fachun ,
LIU Xiaomu ,
JIANG Shuzhen ,
YANG Zaibin ,
YANG Weiren ,
ZHANG Guiguo ,
ZHANG Xianglun

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1. College of Animal Science and Technology, Shandong Agricultural University, Tai'an 271018, China;
2. Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Science, Jinan 250000, China;
3. Shandong Key Laboratory of Animal Disease Control and Breeding, Jinan 250100, China

Received date: 2012-12-03

Online published: 2013-05-15

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Abstract

The objective of the present study was to investigate the effects of different processing of wheat on nutrients digestibility, digestive enzyme activities and serum metabolite contents of beef cattle. Four healthy 30-month-old Limousin×Luxi crossbred beef cattle with an average body weight of (400±10) kg were used in a 4×4 Latin Square design, and were surgically fitted with permanent fistulas in the rumen, proximal of duodenum and dismal of ileum. Beef cattle were fed four different processing wheat diets, which were grinding wheat diet, crushing wheat diet, squashing wheat diet and puffing wheat diet, respectively. The experiment consisted of four periods with a pre-experiment period for 13 days and a formal experiment period for 3 days in each period. The results showed as follows: 1) the digestibility of DM, OM, CP, NDF and ADF in puffing wheat diet was significantly higher than that in the other three diets (P<0.05); the digestibility of DM and OM in both grinding wheat diet and crushing wheat diet was significantly higher than that in squashing wheat diet (P<0.05); the digestibility of NDF and ADF in grinding wheat diet was significantly lower than that in the other diets (P<0.05). 2) Beef cattle fed crushing wheat diet had the highest activities of lipase and trypsinase in chymus of duodenum and ileum, and were significantly higher than those fed the other three diets (P<0.05), and then followed with those fed squashing wheat diet; beef cattle fed squashing wheat diet had the highest activity of amylase in ileum chymus, and were significantly higher than those fed the other three diets (P<0.05), and then followed with those fed grinding wheat diet and crushing wheat diet. 3) Serum metabolites and whole blood indices were not significantly affected (P>0.05). It is suggested that feeding different processing of wheat might result in a significant effect on nutrients digestibility and digestive enzyme activities without changes in serum metabolites and whole blood indices.

Key words： wheat; processing; digestibility; digestive enzyme; serum metabolites

Cite this article

LI Zhen , WAN Fachun , LIU Xiaomu , JIANG Shuzhen , YANG Zaibin , YANG Weiren , ZHANG Guiguo , ZHANG Xianglun . Effects of Different Processing of Wheat on Nutrients Digestibility, Digestive Enzyme Activities and Serum Metabolite Contents of Beef Cattle[J]. Chinese Journal of Animal Nutrition, 2013 , 25(6) : 1229 -1236 . DOI: 10.3969/j.issn.1006-267x.2013.06.014

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