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Phytogenic Feed Additive for Sows： Effects on Sow Feed Intake, Serum Metabolite Concentrations, IgG Level, Lysoz.me Activity and Milk Quality

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Journal of Agricultural Science and Technology(A) 2011年第6期1卷 802-810页

作者： M. z.ong D. Wu Y. Lin z. F. fang Institute of Animal Nutrition Sichuan Agricultural University Ya ＇an 625014 China Key Laboratory for Animal Disease Nutrition of Sichuan Province Ministry of Education Ya ＇an 625014 China

The objective of this study was to investigate the influence ofa phytogenic feed additive （PFA） to late-gestation （d 90） and lactation sows on their reproduction performance. Sixty Large White × Landrace primiparous sows were divided into four groups （fifteen sows per group）. The control group was fed with basal diet, the others were fed with basal diet supplemented with 0.02%, 0.04% and 0.06% PFA, respectively. Compared with the control, the sows in 0.04% PFA group had higher feed intake during lactation and higher litter weaning weight （P 〈 0.05）. At farrowing, glucose level in 0.04% PFA sows was higher than the control and sows in 0.02% PFA had the highest IgG content among the treatments （P 〈 0.05）. On day 7 of lactation, serum urea nitrogen contents were lower in response to PFA supplementation compared to the control （P 〈 0.05）. At the same time, sows fed the 0.06% PFA diet increased the lysoz.me activity （P 〈 0.05）. The levels of milk lactose and IgG were increased in 0.02% and 0.04% PFA groups （P 〈 0.05）. In conclusion, feeding PFA improved sows and litter performance, serum metabolite concentrations, lgG level and lysoz.me activity at postpartum and milk quality.

关键词： Metabolism milk performance phytogenic feed additive sows.

A MODEL FOR THE ACTIVITY COEFFICIENTS OF WATER IN THE AQUEOUS SOLUTION OF HCl-MCl_n (M=Ni, Cu, Na AND Fe) WITHCONSTANT CONCENTRATION RATIO XHCl/XMCl_n

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Acta Metallurgica Sinica(English Letters) 1999年第3期12卷 241-244页

作者： Q.R. z.ang Y.G. Li and z. fang (Department of Chemistry, Central South University of Technology, Changsha 410083, China)(Department of Chemistry, Central South University of Technology, Changsha 410083, China)(Department of Chemistry, Central South University of Technology, Changsha 410083, China)

In orber to calculate the activity coefficients of water in the aqueous solution systems of double electrolytes, HCl and MCln (M=Ni, Cu,Na and Fe), a simplified regular solution model has been derived based on the assumption that the electrolytes in the aqueous solution are treated as independent particles instead of their ion forms, and that the interaction of the component pair HCl-MCln in the aqueous solution is very weak as compared with the component pairs HCl-H2O and H2 O-MCln. The interchange energies of the component pairs in the discussed systems, ωWCl-H2o, ωH2o-NiCl2,ωH2o-CuCl2, ωH2o-NaCl and ωH2O-FeCl3, have been evaluated from the experimental data to be-69800, -212600, -90550, -42450 and -198310J·mol-1.

关键词： solution model interchange energy electrolyte solution

厦门鲚鱼的食料研究——1.六丝鲚(Coilia mystus)的食料分析

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厦门大学学报(自然科学版) 1956年第1期 25-44页

作者：郑重方金钏

1.六丝鲚的食料差不多完全是浮游动物,以甲壳类为主,其中以桡足类为最重要、十足类(包括莹虾)次之,糠虾类,端足类,磷虾类更次之。除甲壳类以外,它还捕食很多毛头类和鱼卵,所以六丝鲚应属蜉食性的鱼类。 2.六丝鲚的食料成份有季节变化,... 详细信息

1.六丝鲚的食料差不多完全是浮游动物,以甲壳类为主,其中以桡足类为最重要、十足类(包括莹虾)次之,糠虾类,端足类,磷虾类更次之。除甲壳类以外,它还捕食很多毛头类和鱼卵,所以六丝鲚应属蜉食性的鱼类。 2.六丝鲚的食料成份有季节变化,不过不很显著:春夏两季以桡足类为主,鱼卵次之,十足类(包括短尾类幼虫)更次之。秋季以桡足类为主,十足类(包括莹虾和短尾类幼虫)次之,糠虾更次之。冬季以桡足类为主,十足类次之,磷虾类更次之。总的来看,桡足类在四季食料中都占了绝对优势。六丝的次要食料则随季节而异;春夏两季是鱼卵,秋冬两季都是十足类。值得注意的是:糠虾类和介壳类在秋季食料中的比率增加,磷虾类在冬季食料中占相当重要位置。食料的季节变化是和浮游生物的季节变化分不开的。 3.食料种类大小和体长有关:体长在15厘米以上的捕食较大的甲壳类(如磷虾类,口脚类和十足类等),而体长在15厘米以下的则捕食较小的甲壳类(如桡足类)。这和鳃耙密度有关:前者的鳃耙较稀(1毫米长中有1.4—1.9鳃耙)而后者的鳃耙较密(1毫米中有2.0—2.7鳃耙)。 4.食料和浮游生物存在着一定关系;在浮游生物中占优势的种类也同样地在食料中占优势。桡足类便是一个很显著例子。其他甲壳类也有相似情况。可是水母则不然,它在浮游生物中很

关键词：食料季节变化桡足类季节性变化周期变化桡足亚纲甲壳类 Coilia mystus 鳃耙福建厦门

厦门鲚鱼的食料研究——2.七丝鲚(Coilia grayii)的食料分析

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厦门大学学报(自然科学版) 1957年第2期 81-98页

作者：郑重方金钏

一、引言鲚鱼(Coilia),俗称凤尾鱼,是—种重要经济鱼类。在厦门沿海一带盛产两种:六丝鲚(***(L.))和七丝鲚(*** Richardson)。这两种的主要区别,是在胸鳍的游离鳍条的数目上:前者有6根,而后者有7根,此外,这两种的大小,也不完全相同。... 详细信息

一、引言鲚鱼(Coilia),俗称凤尾鱼,是—种重要经济鱼类。在厦门沿海一带盛产两种:六丝鲚(***(L.))和七丝鲚(*** Richardson)。这两种的主要区别,是在胸鳍的游离鳍条的数目上:前者有6根,而后者有7根,此外,这两种的大小,也不完全相同。一般来讲,七丝鲚较

关键词：大眼幼虫甲壳类虫类蟹前期幼虫动物性饲料端足类 Coilia grayii 甲壳动物枝角类十足类多毛类食料

Effects of Electron-Electron Interactions on the Ferromagnetic State in an Organic Polaronic Ferromagnet

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Effects of Electron-Electron Interactions on the Ferromagnet...

Transfer kinetics of phenol between aqueous phase and N,N-di(1-methyl-heptyl) acetamide in kerosene

作者： z. fang~2) (a), H. Q. LIN (b). and K. L. YAO (c)(a) National Laboratory of Laser Technology and Department of Physics. Huaz.ong University of Scicnce and Technology, Wuhan 430074. People’s Rcpublic of China (b) Department of Physics. The Chinese University of Hong Kong. Hong kong (c) Department of Physics, Huaz.ong University of Science and Technology. Wuhan 430074, Peoples Republic of China

A Peierls-extended Hubbard model is used to study the effects of electron-electron internction. on the possible ferromagnetic ground state in the polaronic ferromagnt. Considering the strong eiec tron-phonon coupling and allowing for full lattice relaxation, the system is optimiz.d by a set of selt consistent neranve equations. The formation energies of polarons with different spin arrangement are caicuiated. The results of calculation indicate that the possible ferromagnetic ground state of the system will be atiected dramatcally by the onsite and intersite e-c interactions. However. for approprinte. electron-eiectron interactions the ferromagnetic state can become a stable ground state.

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Journal of Environmental Sciences 2000年第2期12卷 19-23页

作者： z.u-xian, Y. Hui-fang, D. Qi-hong, z. z.-ming, z. Dept. of Environmental Sci./Eng. Fudan University Shanghai 200433 China

The transfer kinetics of phenol between aqueous phase and N,N di(methyl heptyl) acetaminde (N503) in kerosene has been studied using Lewis cell technique. The effects of the factors including the concentrations of phenol in aqueous phase and organic phase, the concentration of N503 in organic phase, the acidity of aqueous phase, the stirring speed and the temperature on the rates of forward and backward extraction of phenol have been examined. The regularity of extraction rate has been obtained. According to experimental results, the rates of both forward and backward extraction of phenol might be controlled by diffusion process. The diffusion step of phenol from aqueous phase to interface for forward extraction and from interface to aqueous phase for backward extraction might be the rate controlling steps.

关键词： phenol transfer kinetics N,N di(1 methyl heptyl) acetamide CLC number: X703 Document code: A Introduction

Cyanobacterial bloom dynamics in Lake Taihu

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Journal of Environmental Sciences 2015年第6期27卷 249-251页

作者： Katherine z. Fu Birget Moe Xing-fang Li X. Chris Le Division of Analytical and Environmental Toxicology Department of Laboratory Medicine and Pathology University of Alberta

Lake Taihu is the third largest freshwater lake in China and serves as an important drinking water source for the local populace;however,decades of excessive nutrient loading fueled by anthropogenic activities have resulted in hypertrophic conditions,promoting the annual formation of nuisance phytoplankton blooms（Chen et al.,2003;Duan et al.,2009）

关键词： Cyanobacteria Blue-green algae Microcystin Natural toxins Water quality Nutrients Nitrogen and phosphorus Carbon dioxide

SYNTHESIS AND IDENTIFICATION OF CONDUCTING POLYANILINE DOPED WITH RARE EARTH CHLORIDE

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Acta Metallurgica Sinica(English Letters) 2000年第3期13卷 872-876页

作者： Yang, C.M. z.ang, Q.R. fang, z. Central South Univ of Technology Changsha China

Polyaniline doped with rare earth chloride was synthesiz.d in organic solvent and identified by elemental analysis and infrared spectroscopy. The experimental results show that there exists both doping and complexation at the same time in the resulting product. When pH4. Moreover, polyaniline doped with rare earth chloride exhibits better thermal stability than that doped with hydrochloric acid.

关键词： Chlorine compounds Composition Conductive materials Electric conductivity Organic polymers Rare earth compounds Synthesis (chemical)

A Simplified Regular Solution Model for Solubility of Nonmetal (2) in Metal(1)-Metal(3) Alloy Systems

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Journal of Materials Science & Technology 1996年第4期12卷 281-285页

作者： fang, z.z.ang, QR CHANGSHA TECH COLL DEPT METCHANGSHA 410012PEOPLES R CHINA

A simplified regular solution model for the solubility of nonmetallic element (2) in metal(1)-metal(3) alloy system has been derived and applied to the Fe-C-j, Ni-S-j and Fe-N-j (j denotes a metal) systems with satisf... 详细信息

关键词： Alloys