动物营养学报2019，Vol.31Issue(9)：4371-4377,7.DOI:10.3969／j.issn.1006⁃267x.2019.09.052
饲粮粗纤维水平对生长育肥期深县猪生长性能、营养物质表观消化率和血清生化指标的影响
Effects of Dietary Crude Fiber Level on Growth Performance, Nutrient Apparent Digestibility and Serum Biochemical Indexes of Growing and Finishing Shenxian Pigs
摘要
Abstract
This experiment was conducted to study the effects of different dietary crude fiber levels on growth performance, nutrient apparent digestibility and serum biochemical indexes of growing and finishing Shenxian pigs, to determine optimal dietary crude fiber level of growing and finishing Shenxian pigs. Thirty healthy growing and finishing Shenxian pigs with similar age and similar body weight of ( 15.68±1.26) kg were ran?domly allotted to 3 groups and 10 replicates per group and 1 pig per replicate. Pigs were fed the experimental diets with 6%, 8% and 10% crude fiber levels, respectively. The experiment lasted for 38 days including pre?test period of 7 days and test period of 31 days. The results showed as follows: 1) average daily gain ( ADG) in 6% and 8% crude fiber level groups was significantly higher than that in 10% crude fiber level group ( P＜0.05) , average daily feed intake ( ADFI) in 8% crude fiber level group was significantly higher than that in 6% crude fiber level group ( P＜0.05) , and the ratio of feed to gain in 6% crude fiber level group was signifi?cantly lower than that in 8% and 10% crude fiber level groups ( P＜0.05). 2) The apparent digestibility of crude protein ( CP) and gross energy ( GE) in 8% crude fiber level group were significantly higher than those in 6% and 10% crude fiber level groups ( P＜0.05) , the apparent digestibility of calcium ( Ca) and phosphorus ( P) in 6% crude fiber level group were significantly higher than those in 10% crude fiber level group ( P＜0.05) , and the apparent digestibility of crude fiber ( CF) in 6% crude fiber level group was significantly lower than that in 8% and 10% crude fiber level groups ( P＜0.05). 3) The contents of albumin ( ALB) and total protein ( TP) in serum in 10% crude fiber level group were significantly lower than those in 6% and 8% crude fiber level groups ( P＜0.05). Comprehensive analysis of various indicators, optimal dietary crude fiber level can enhance growth performance, improve nutrient apparent digestibility of growing and finishing Shenxian pigs, and 7.57% crude fiber level can reach the optimum effect.[ Chinese Journal of Animal Nutrition, 2019, 31(9) :4371?4377]关键词
深县猪/饲粮粗纤维水平/生长育肥期/生长性能/表观消化率Key words
Shenxian pig/dietary crude fiber level/growing and finishing stage/growth performance/appar⁃ent digestibility分类
农业科技引用本文复制引用
安亚辉,曹洪战,苗玉涛,李广东,邢荷岩,李赛,芦春莲..饲粮粗纤维水平对生长育肥期深县猪生长性能、营养物质表观消化率和血清生化指标的影响[J].动物营养学报,2019,31(9):4371-4377,7.基金项目
河北省生猪产业技术体系营养与饲料岗位( HBCT2018110203) （ HBCT2018110203）
