美国红鱼养殖种群的同工酶酶谱及其生化遗传初步分析   总被引：6，自引：0，他引：6  

刘世禄  王波  高天翔  柳广东  张锡烈 《海洋水产研究》2002,23(3):10-14

利用水平淀粉凝胶电泳技术，对50尾美国红鱼肌肉及肝脏组织进行了14种同工酶的初步分析。结果表明，美国红鱼多态位点比例P＝0.292，实际平均杂合度Hp=0.057，预期杂合度He=0.108，每个位点的有效等位基因数Ae=1.108，Hardy-Weinberg遗传偏离指数D＝－0.472。  相似文献   

强化种业科技自主创新，推动现代种业健康发展     

路明 《中国种业》2018,(1):8-10

种业是引领现代农业跨越发展的基础性、战略性新兴产业,强化种业科技自主创新,推动现代种业健康发展是我国发展的必由之路。分析当前我国种业发展概况,从种质、技术和品种3个方面概述了我国种业科技主要进展;分析我国种业科技面临的问题,从人才、创新能力、创新体系和政策等4个方面提出发展思路和对策,以期推动我国种业快速健康发展。  相似文献   

Design of Neural Network Predictor for the Physical Properties of Almond Nuts     

İkbal Eski  Bünyamin Demir  Feyza Gürbüz  Zeynel Abidin Kuş  Kadir Uğurtan Yilmaz  Mehmet Uzun  Sezai Ercişli 《Erwerbs-Obstbau》2018,60(2):153-160

In this study, an adaptive neuro fuzzy interface system (ANFIS) based predictor was designed to predict the physical properties of four almond types. Measurements of the dimensions, length, width and thickness were carried out for one hundred randomly selected samples of each type. With using these three major perpendicular dimensions, some physical parameters such as projected area, arithmetic mean diameter, geometric mean diameter, sphericity, surface area, volume, shape index and aspect ratio were estimated. In in a various Artificial Neural Network (ANN) structures, ANFIS structure which has given the best results was selected. The parameters analytically estimated and those predicted were given in the form of figures. The root mean-squared error (RMSE) was found to be 0.0001 which is quite low. ANFIS approach has given a superior outcome in the prediction of the Physical Properties of Almond Nuts.  相似文献   

Influence of various dietary protein levels on carcase composition in the male Japanese quail (Coturnix coturnix japonica)     

F. Kirkpinar  İ. Oğuz 《British poultry science》1995,36(4):605-610

1. The present study was conducted to determine the effect of various dietary protein concentrations on the carcase composition of male Japanese quail.

2. Six diets varying in protein from 160 to 300 g/kg and containing approximately 11–72 MJ/kg ME were fed for 5 weeks and analysed for dry matter, protein, fat and ash.

3. Treatments affected carcase weight, dry matter, protein, ether extract and ash

4. The water content of the carcases decreased with increasing dietary protein concentrations, while the carcase protein content increased with higher dietary protein. The carcases with the highest fat content were obtained from quail receiving the low protein diet.  相似文献   

Determination of the relationship between serum anti‐Müllerian hormone level and superovulatory response in Simmental cows     

Ramazan Sevgi  Hüseyin Erdem  Tahir Karaahin  Mehmet Ali Y&#x;lmaz  Muharrem Sat&#x;lm&#x;  Alaeddin Okurolu  &#x;lker Ünal  ükrü Dursun  Hasan Alkan  Fatma Sat&#x;lm&#x;  Mehmet Güler 《Reproduction in domestic animals》2019,54(10):1322-1329

The most significant focal points of the embryo transfer technology are as follows: the selection of donors, the response of the selected donor to the superovulation protocol and the obtained number of the transferable embryos. For this purpose, it is suggested that donor selection can be done by anti‐Müllerian hormone (AMH) levels, and embryo production is evaluated. AMH is secreted by the granulosa cells of primordial, pre‐antral and antral follicles below 4 mm in the ovary, independent of FSH. Therefore, the aim of this study was to investigate the relationship between serum AMH levels and the number of corpus luteum (CL), total embryos and transferable embryos that were shaped after a uniform superovulation protocol. For this reason, 48 Simmental cows, which were located at General Directory of Agricultural Enterprises (region, province, etc. instead of the general directorate), were used as donors for the embryo transfer. Blood samples were taken at random, regardless of the stage of animal's sexual cycle. AMH levels were measured by enzyme‐linked fluorescent assay (ELFA) method of the miniVIDAS^® (bioMérieux SA) using AMH Bovine Test Kit. According to the statistical analyses of the obtained data, AMH levels were positively correlated with CL and total embryos (p < .05). No significant correlations between AMH and transferable embryos were approved (p > .05). It was also determined that each 200 pg/ml increase in serum AMH level resulted in one increase in CL number. Overall, considering the positive correlation between AMH level and the obtained number of CL and total embryos after a superovulation treatment, it was concluded that measuring blood AMH level prior to any further costly implementation may be an effective method in donor selection.  相似文献   

自拟中药方对家兔降血脂作用的研究   总被引：1，自引：0，他引：1  

陶大勇应璐  程勇胥志国  杨新建 《黑龙江畜牧兽医》2005,(12):7-9

试验通过饲喂高脂饲料创建家兔高脂模型,配以山楂、马齿苋、甘草为降脂基础配方,分别加以权枝鸦葱等、镰叶碱蓬等、泽泻及芹菜组成配方1、配方2、配方3,通过测量总胆固醇（CHO）、甘油三酯（TG）、高密度脂蛋白胆固醇（HDL-C）、低密度脂蛋白胆固醇（LDL-C）等5个指标,经过28d的治疗,结果表明：3个配方均有降血脂作用,但配方1效果作用最好.  相似文献   

The role of herpesviruses (BoHV-1 and BoHV-4) and pestiviruses (BVDV and BDV) in ruminant abortion cases in western Turkey     

Pelin Tuncer-Göktuna  Gizem Alpay  Eda Baldan Öner  Kadir Yeşilbağ 《Tropical animal health and production》2016,48(5):1021-1027

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Erfahrungen mit der Laboratoriumszucht vonSyrphus luniger Meig. (Diptera,Syrphidae)     

Orhan Tokmakoğlu 《Journal of pest science》1965,38(2):23-25

Zusammenfassung 1. Es gelang die vollständige kontinuierliche Zucht vonS. luniger unter hier näher beschriebenen Bedingungen.2. Die Kopulation erfolgte nur im Fluge, frühestens 4 Tage nach dem Schlüpfen, bei relativer Luftfeuchtigkeit von 65–70%.3. Die Larvenentwicklung dauerte bei 22°C 8 bis 10 Tage. Die Mortalität erreichte 40–45%. Zur Verpuppung bevorzugten die Larven lockere, feuchte Medien.4. Die Puppen entwickelten sich am schnellsten bei 22–25°C, einem Temperaturbereich, in dem auch die geringste Mortalität auftrat. Es bestehen Anhaltspunkte dafür, daß die Mortalität bei langsamer Entwicklung höher ist als bei schneller.Herrn Professor Dr. F. Schwerdtfeger zum 60. Geburtstag gewidmet.  相似文献   

Studies on the abundance, biology and harmfulness of leaf beetles (Coleoptera: Chrysomelidae) in natural bush vegetation in Isparta, Turkey     

A. Gök  E. G. Çilbiroğlu 《Journal of pest science》2005,78(1):13-15

Leaf beetle occurrence and abundance on certain shrubs and bushes were surveyed during 2002–2003 in several natural habitats of Isparta. The 34 leaf-beetle species collected are listed and classified according to their relative percentage of the total caught and to their associated host plants. In all habitats sampled, leaf beetles showed a preference for plants from the genera Quercus and Crataegus. Some abundant species causing serious damage to their food plants are discussed.  相似文献   

Solution the Group of Linear Ordinary Differential Equation Using Differentiator Series Method     

Zeng Shu- liang Ke Hong- lu 《保鲜与加工》1996,(3):123-130

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