復(fù)合植物精油改善仔豬生長性能和經(jīng)濟效益比較研究
發(fā)布時間:2018-04-18 13:09
本文選題:復(fù)合植物精油 + 能量水平 ; 參考:《飼料工業(yè)》2017年12期
【摘要】:試驗旨在證明復(fù)合植物精油改善斷奶仔豬生長性能和經(jīng)濟效益功效。本試驗采用2×2析因設(shè)計,2個消化能水平(DE:14.27 MJ/kg.DM和13.37 MJ/kg.DM)對應(yīng)2個添加劑水平(復(fù)合植物精油:添加和不添加),研究復(fù)合植物精油改善仔豬生長性能和經(jīng)濟效益。選用35日齡體重相近、體況良好的杜×長×大三元斷奶仔豬160頭,隨機分成4個處理,每個處理4個重復(fù),每個重復(fù)10頭。高能量:按NRC(2012)仔豬飼養(yǎng)標(biāo)準(zhǔn)配制,消化能實測值為14.27 MJ/kg.DM;低能量:高能量飼料的基礎(chǔ)上降低0.84 MJ/kg,消化能實測值為13.37 MJ/kg.DM,其他營養(yǎng)水平均同高能量日糧;另兩個處理分別在兩個能量日糧基礎(chǔ)上添加600 mg/kg復(fù)合植物精油。預(yù)試期1周,正試期5周。豬只自由采食、飲水,試驗期間記錄采食量和體重,計算平均日采食量、日增重和料重比。研究結(jié)果表明:斷奶仔豬飼喂低能量日糧(DE:13.37 MJ/kg.DM)有提高采食量(P0.05)和日增重(P0.05)的趨勢,復(fù)合植物精油降低了仔豬的料重比(P0.05)。斷奶仔豬飼喂低能量日糧可以增加收益(P0.01),兩種日糧水平下添加植物精油均改善了經(jīng)濟效益(P0.05)。植物精油可以用于改善仔豬生長性能、飼料效率和經(jīng)濟效益,在低能量日糧使用優(yōu)勢更大,降低仔豬日糧消化能并不影響仔豬生長性能。
[Abstract]:The purpose of the experiment was to prove that compound plant essential oil could improve the growth performance and economic benefit of weaned piglets.In this experiment, 2 脳 2 factorial design was used. Two digestible energy levels (DEV: 14.27 MJ/kg.DM and 13.37 MJ / kg 路DMm) were used to correspond to two additive levels (compound essential oil: adding or not adding essential oil) to improve growth performance and economic benefit of piglets.160 weaned piglets with similar body weight and good health were selected and randomly divided into 4 treatments with 4 replicates and 10 piglets per replica.High energy: according to the standard of NRCC2012), the measured value of digestible energy was 14.27 MJ / kg 路DM.The low energy: the feed of high energy decreased 0.84 MJ / kg, the measured value of digestibility energy was 13.37 MJ / kg 路DM. the other nutritional levels were the same as high energy diet.The other two treatments added 600 mg/kg compound plant essential oil to two energy diets respectively.The pretest period was 1 week and the positive test period was 5 weeks.The feed intake and body weight were recorded during the experiment, and the average daily intake, daily gain and feed weight ratio were calculated.The results showed that weaning piglets had a tendency to increase their feed intake (P0.05) and daily gain (P0.05) by feeding a low energy diet of 13.37MJ / kg 路DM.Combined plant essential oil decreased the feed / weight ratio (P0.05N) of piglets.Weaning piglets fed a low energy diet could increase the yield of P0.01N, and the addition of plant essential oil at both dietary levels improved the economic benefit of P0.05.The plant essential oil can be used to improve the growth performance, feed efficiency and economic benefit of piglets. It is more advantageous to use low energy diets, and the reduction of dietary digestibility does not affect the growth performance of piglets.
【作者單位】: 山東農(nóng)業(yè)大學(xué)動物科技學(xué)院;臨沂寶力佳食品有限公司;
【基金】:公益性行業(yè)(農(nóng)業(yè))科研經(jīng)費[201403047]
【分類號】:S828.5
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