摘要
为了研究不同粗纤维含量饲粮对杜梅商品猪生长性能、肉质及经济效益的影响,试验选择杜梅商品仔猪90头,随机分为3个试验组。试验分为两个阶段,第一阶段各组饲喂仔猪试验饲粮至50 kg体重,第二阶段生长肥育猪饲喂粗纤维饲粮至屠宰结束。仔猪阶段饲喂粗纤维含量为2.5%(对照组)、3%和4%的饲粮;生长肥育阶段饲喂粗纤维含量为2.5%(对照组)、3.5%和4.5%的饲粮。结果表明,提高饲料中粗纤维含量会导致平均日增重逐渐下降、料重比升高;饲喂中高纤维含量的饲粮可降低背膘厚,改善肉色,但对瘦肉率、脂肪率、皮率、骨率影响不显著(P>0.05);提高饲粮中粗纤维含量至3.5%、4.5%,分别降低饲料成本15.16%、10.51%,但是总体经济效益呈现下降趋势。说明只有在体现猪肉优质优价的前提下,提高饲粮中粗纤维水平才能有比较好的经济效益。
In order to study the effects of different crude fiber content diets on the growth performance,meat quality and economic benefits of Duroc×Meishan commercial pigs,90 Duroc×Meishan commercial piglets were selected and randomly divided into 3 experimental groups.The experiment was divided into two stages:piglets in the first stage were fed a test diet to 50 kg body weight,and growing finishing pigs in the second stage were fed a crude fiber diet to the end of slaughter.Piglets were fed diets containing 2.5%,3%and 4%crude fiber.At growth and finishing stage,the broilers were fed diets with crude fiber content of 2.5%,3.5%and 4.5%.The results showed that the increase of dietary crude fiber content could lead to the decrease of average daily gain and the increase of feed/gain.Feeding diets with different fiber content could reduce backfat thickness and improve meat color,but had no significant effects on lean meat percentage,fat percentage,skin percentage and bone percentage(P>0.05).Increase the crude fiber content to 3.5%and 4.5%,and reduce feed cost by 15.16%and 10.51%,respectively,but the whole economic benefit shows downtrend.
作者
张江
顾欣
唐赛涌
雷胜辉
任智彬
ZHANG Jiang;GU Xin;TANG Saiyong;LEI Shenghui;REN Zhibin(Shanghai Vocational College of Agriculture and Forestry,Shanghai 201699,China;Shanghai Animal Disease Control Center,Shanghai 201103,China;Shanghai Jiading Animal Disease Control Center,Shanghai 201800,China;Shanghai Songjiang Animal Disease Control Center,Shanghai 201611,China;Nanjing Agricultural University,Nanjing 210095,China)
出处
《养猪》
2022年第6期41-44,共4页
Swine Production
基金
上海市生猪产业技术体系建设[沪农科产字(2018)第6号]。
关键词
粗纤维
梅山猪
生长性能
肉质
经济效益
crude fiber
Meishan pigs
growth performance
fleshy
economic benefits
