日粮中添加发酵果渣对杜花二元杂交育肥猪生长性能和养分表观消化率的影响

doi:10.16431/j.cnki.1671-7236.2019.03.008

摘要/Abstract

摘要：

本试验旨在研究发酵果渣对杜花二元杂交育肥猪的生长性能、养分表观消化率和饲料通过消化道时长的影响。选取480头80日龄左右、体况相近的杜花二元杂交育肥猪（♂杜洛克猪×♀广东小耳花猪），随机分为试验组和对照组，每组24个重复，每个重复10头猪。对照组饲喂基础日粮，试验组饲喂基础日粮的同时，按照猪生长阶段额外添加5%~20%的发酵果渣，饲养试验全期共5个月。结果显示，小猪阶段（25~60 kg阶段，添加5%~10%的发酵果渣），平均日增重无影响，试验组全价料采食量降低6.12%（P>0.05），料重比降低5.57%（P>0.05）；中猪阶段（60~80 kg阶段，添加15%的发酵果渣），试验组平均日增重提高6.52%（P>0.05），全价料采食量降低7.55%（P>0.05，料重比降低12.90%（P<0.05）；大猪阶段（80~100 kg阶段，添加20%的发酵果渣），试验组平均日增重提高4.69%（P>0.05），全价料采食量降低9.50%（P>0.05），料重比降低12.20%（P<0.05）；试验全期，试验组平均日增重提高2.08%（P>0.05），全价料采食量降低7.47%（P>0.05），料重比降低8.62%（P<0.05）。额外添加发酵果渣能不同程度显著性提高杜花二元杂交育肥猪中后期对粗蛋白质的表观消化率，但对钙和磷的吸收具有降低的趋势。额外添加发酵果渣能缩短杜花二元杂交育肥猪前期饲料通过消化道的时长（P>0.05），但能不同程度延长中后期饲料通过消化道的时长（P>0.05）。本试验结果表明，在杜花二元杂交育肥猪日粮中额外添加适量的发酵果渣能提高生长性能，降低料重比，且可一定程度上延长饲料在育肥中后期猪消化道内的停留时间，促进猪对日粮中粗蛋白质等营养物质的消化吸收。

关键词: 发酵果渣; 杜花二元杂交育肥猪; 生长性能; 养分消化率; 饲料通过消化道时长

Abstract:

The purpose of this experiment was to study the effects of fermented pomace on the growth performance,apparent digestibility of nutrients and the duration of feed through the digestive tract.A total of 480 Duhua binary breeding pigs (♂Duroc pig×♀Guangdong small-eared pigs) with similar body conditions were selected and randomly divided into experimental group and control group,24 replicates per group,10 pigs per replicate.The control group was fed with the basal diet,and the experimental group was fed with the basal diet,and 5% to 20% of the fermented pomace was added according to the growth stages of the pig.The feeding trial lasted for 5 months.The results showed that in the piglet stage (25 to 60 kg stage,adding 5% to 10% fermented pomace),the average daily gain did not affect,the test group's full-price feed intake decreased by 6.12% (P>0.05),and the F/G decreased 5.57% (P>0.05).In the middle pig stage (60 to 80 kg stage,adding 15% fermented pomace),the average daily weight gain of the test group increased by 6.50% (P>0.05),the full-price feed intake decreased by 7.55% (P>0.05),and the F/G decreased by 12.90% (P<0.05).In the large pig stage (80 to 100 kg stage,adding 20% fermented pomace),the average daily weight gain of the test group increased by 4.69% (P>0.05),the full-price feed intake decreased by 9.50% (P>0.05),and the F/G decreased by 12.20% (P<0.05).During the whole trial period,the average daily gain of the experimental group increased by 2.08% (P>0.05),the feed intake of the full-price feed decreased by 7.47% (P>0.05),and the F/G decreased by 8.62% (P<0.05).The addition of fermented pomace could significantly improve the apparent digestibility of protein in the middle and late stages of Duhua binary fattening pigs,but the absorption of calcium and phosphorus had a decreasing trend.And it could shorten the time of the feed through the digestive tract of the Duhua binary fattening pigs in initial stage (P>0.05),but could extend the time of the feed through the digestive tract in medium and late stages (P>0.05).The results of this experiment showed that adding an appropriate amount of fermented pomace in the diet of Duhua binary fattening pigs could improve the growth performance,reduce the F/G,and to some extent,prolong the retention of feed in the digestive tract of the pig in the middle and late fattening period and promote the digestion and absorption of nutrients such as CP in the diet.

Key words: fermented fruit pomace; Duhua binary breeding pigs; growth performance; nutrient digestibility; time of feed through the digestive tract

中图分类号:

S828

张紫微, 陈月丽, 卢华艳, 梁英旦, 陈翠怀, 阳林芳. 日粮中添加发酵果渣对杜花二元杂交育肥猪生长性能和养分表观消化率的影响[J]. 《中国畜牧兽医》, 2019, 46(3): 703-710.

ZHANG Ziwei, CHEN Yueli, LU Huayan, LIANG Yingdan, CHEN Cuihuai, YANG Linfang. Effect of Fermented Fruit Pomace in Diet on Growth Performance and Apparent Digestibility of Nutrient in Duhua Binary Finishing Pigs[J]. , 2019, 46(3): 703-710.

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