为筛选改善猪肉品质的较佳超微粉中药添加剂配方,将72头猪随机分为4组,每组3个重复,每个重复6头猪,分别饲喂基础饲粮、基础饲粮+抗生素、基础饲粮+0.1%中草药组方Ⅰ、基础饲粮+0.1%中草药组方Ⅱ,进行饲养试验及屠宰试验。结果显示:中药...为筛选改善猪肉品质的较佳超微粉中药添加剂配方,将72头猪随机分为4组,每组3个重复,每个重复6头猪,分别饲喂基础饲粮、基础饲粮+抗生素、基础饲粮+0.1%中草药组方Ⅰ、基础饲粮+0.1%中草药组方Ⅱ,进行饲养试验及屠宰试验。结果显示:中药Ⅱ组效果较佳,其料重比最低为3.25,显著低于中药Ⅰ组和抗生素组(P<0.05),极显著低于对照组(P<0.01);背膘厚最高,为4.18cm,与其他组差异不显著(P>0.05);眼肌面积最小,为39.95 cm2,显著小于对照组(P<0.05);pH(1宰后45 min pH)及pH2(4宰后24 h pH)最高,分别为6.32和5.75;滴水损失最低,为4.94%;剪切力最小,为5.07 kg,显著小于对照组(P<0.05),与其他组差异不显著(P>0.05);肌内脂肪含量为2.96%,显著高于中药Ⅰ组和抗生素组(P<0.05),极显著高于对照组(P<0.01);L值(亮度)最低,为47.59;背最长肌纤维、股二头肌纤维直径最细,分别为41.17μm、42.17μm;背最长肌中水含量最少,粗灰分含量最高,粗蛋白质含量与对照组差异不显著(P>0.05);每头猪比对照组多赚64.4元,经济效益提高18.5%。结果表明,中药Ⅱ组能提高猪的生长性能、饲料营养成分消化率及经济效益,且能有效改善猪肉品质,使猪肉肌纤维变细,背膘厚、嫩度及pH提高,滴水损失减少。展开更多
Grate fly ash and fluidized bed fly ash mixed with glass cullet additive respectively were melted in the electronic arc-furnace. The product, arc-melting slag, was further treated by crushing, pressing and heat treatm...Grate fly ash and fluidized bed fly ash mixed with glass cullet additive respectively were melted in the electronic arc-furnace. The product, arc-melting slag, was further treated by crushing, pressing and heat treatment in order to make the glass-ceramics. The crystallization behaviors of the produced glass-ceramics were examined by differential thermal analysis （DTA）, X-ray diffractometry （XRD） and scanning electron microscopy （SEM）. Results show that main crystalline phase of the glass-ceramics fi＇om grate fly ash is wollastonite （CaSiO3） with small amount of diopside （Ca（Mg,Al）（Si,Al）206）, and that from fluidized bed fly ash is diopside （Ca（Mg,Al）（Si,Al）206）. It is found that the glass-ceramics sintered at 850 ℃and 1 000℃ from grate fly ash and fluidized bed fly ash respectively have the optimal physical, mechanical and chemical characteristics. Glass-ceramics samples, produced from incinerator fly ash with desirable properties and the low leaching concentration of heavy metals, can be the substitute of nature materials such as marble, granite and porcelain tiles.展开更多
文摘为筛选改善猪肉品质的较佳超微粉中药添加剂配方,将72头猪随机分为4组,每组3个重复,每个重复6头猪,分别饲喂基础饲粮、基础饲粮+抗生素、基础饲粮+0.1%中草药组方Ⅰ、基础饲粮+0.1%中草药组方Ⅱ,进行饲养试验及屠宰试验。结果显示:中药Ⅱ组效果较佳,其料重比最低为3.25,显著低于中药Ⅰ组和抗生素组(P<0.05),极显著低于对照组(P<0.01);背膘厚最高,为4.18cm,与其他组差异不显著(P>0.05);眼肌面积最小,为39.95 cm2,显著小于对照组(P<0.05);pH(1宰后45 min pH)及pH2(4宰后24 h pH)最高,分别为6.32和5.75;滴水损失最低,为4.94%;剪切力最小,为5.07 kg,显著小于对照组(P<0.05),与其他组差异不显著(P>0.05);肌内脂肪含量为2.96%,显著高于中药Ⅰ组和抗生素组(P<0.05),极显著高于对照组(P<0.01);L值(亮度)最低,为47.59;背最长肌纤维、股二头肌纤维直径最细,分别为41.17μm、42.17μm;背最长肌中水含量最少,粗灰分含量最高,粗蛋白质含量与对照组差异不显著(P>0.05);每头猪比对照组多赚64.4元,经济效益提高18.5%。结果表明,中药Ⅱ组能提高猪的生长性能、饲料营养成分消化率及经济效益,且能有效改善猪肉品质,使猪肉肌纤维变细,背膘厚、嫩度及pH提高,滴水损失减少。
基金Project(20806051) supported by the National Natural Science Foundation of ChinaProject(20080440680) supported by China Postdoctoral Science Foundation
文摘Grate fly ash and fluidized bed fly ash mixed with glass cullet additive respectively were melted in the electronic arc-furnace. The product, arc-melting slag, was further treated by crushing, pressing and heat treatment in order to make the glass-ceramics. The crystallization behaviors of the produced glass-ceramics were examined by differential thermal analysis （DTA）, X-ray diffractometry （XRD） and scanning electron microscopy （SEM）. Results show that main crystalline phase of the glass-ceramics fi＇om grate fly ash is wollastonite （CaSiO3） with small amount of diopside （Ca（Mg,Al）（Si,Al）206）, and that from fluidized bed fly ash is diopside （Ca（Mg,Al）（Si,Al）206）. It is found that the glass-ceramics sintered at 850 ℃and 1 000℃ from grate fly ash and fluidized bed fly ash respectively have the optimal physical, mechanical and chemical characteristics. Glass-ceramics samples, produced from incinerator fly ash with desirable properties and the low leaching concentration of heavy metals, can be the substitute of nature materials such as marble, granite and porcelain tiles.
