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【目的】制备抗氟苯尼考(FFC)的高亲和力特异性抗体,建立检测氟苯尼考的间接竞争ELISA新方法。【方法】氟苯尼考分别与牛血清白蛋白(BSA)和人血清白蛋白(HSA)经混合酸酐法偶联,得到免疫抗原和包被抗原,其偶联比分别为14.4和14.7。用免疫原FFC-HS-BSA免疫新西兰大白兔获得了效价较高的特异性抗体。建立并优化了间接竞争ELISA检测方法。【结果】抗血清效价为1﹕102 400。最佳包...
【目的】克隆猪囊尾蚴AgB基因并在体外细胞中表达。【方法】采用 RT-PCR法分别扩增AgB基因的上半段和下半段序列。采用重叠延伸PCR法(splicing overlap extension PCR method,SOE-PCR)把具有35个相同碱基的上下半段扩增为全长基因,并构建到真核表达载体pVAX1,将酶切、PCR、测序鉴定的阳性质粒经脂质体转染 BHK-21细胞。通过SDS-PAGE、W...
A polymerase chain reaction (PCR) primer set for a chicken microsatellite locus on the Z chromosome, LEI0171 (GenBank Accession No.X85538), amplified a 363bp fragment of genomic DNA in chickens (Gallu...
It was examined whether dietary adenine has adverse effects on growth and feed intake in 2-month-old chickens as reported previously in younger chickens. The male chickens were fed ad libitum on contr...
Marrow cells were isolated from medullary bone of hens at two opposing phases, the bone formative and resorptive phases, of the egg-laying cycle. These cells were cultured for up to 14 days on cover s...
Effect of L-ascorbic acid phosphate magnesium (APM) on chicks injected radical initiator, 2, 2′-azobis(2-amidinopropane) dihydrochloride (AAPH), was examined. Chicks were fed APM as ascorbate resourc...
The present experiment was designed to investigate a possibility of the in vitro cultured somatic cells to produce the germ line interspecific chimera in bird. The frozen-thawed fibroblast-like cells ...
Inhibitory effects of prostaglandin F2α, arachidonic acid and phosphate solution on the eggshell formation were investigated in Japanese quail. All injections were performed intrauterinely 8h before t...
The goal of this study was to determine whether lysosomal hydrolase activity changes during induced molting in the hen pituitary. White Leghorn aged laying hens were subjected to induced molting by fe...
On day 5 of incubation, 0.64mg of estradiol benzoate (EB) was administered to fertilized eggs to investigate its effects on the differentiation and development of the oviduct in female chickens. The ...
Mustard meal (MM), which is a residue of essential oil extraction, had high moisture content (77%). It took 3 days to dry under the sun or 48 hours to dry in an electrical oven at 65°C or 8 hours in a...
Avian perivitelline membrane, an investment homologous to the zona pellucida of mammalian oocytes, is composed of two glycoproteins. Previous studies have indicated that one of the components, a glyco...
Shochu distillery by-product (SDBP) is usually dried before using as an ingredient of formula feed. But drying is costly and causes destruction of the nutrients. In the present study, a new technique ...
The effects of supplementation of cellulase, xylanase, pectinase, hemicellulase, glucanase, phytase and protease of microbial origins on digestibilities of crude protein (CP) and dry matter (DM) of ma...
A protease present in an enzyme preparation may digest other enzymes and thus reduces the effectiveness of an enzyme preparation to improve digestibility of animal feeds. Thus the effects of enzyme mi...

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