Diseases that affect meat production     

WOOLDRIDGE WR 《The British veterinary journal》1948,104(6):171-179

  相似文献   

The past,present and future of the Animal Health Trust     

WOOLDRIDGE WR 《The Veterinary record》1948,60(20):228-231

  相似文献   

山羊垂体门脉血样采集方法的探讨   总被引：1，自引：0，他引：1  

章孝荣  王建辰 《中国兽医杂志》1994,20(9):23-24

山羊垂体门脉血样采集方法的探讨章孝荣（安徽农业大学畜牧兽医系，合肥２３００３６）王建辰，王强华（西北农业大学动物医学系）丘脑下部产生的神经激素通过垂体门脉进入垂体，调节垂体激素的分泌或释放，因而在内分泌学研究中，常常需要采集垂体门脉血样监测丘脑下部神...  相似文献   

利用免疫抑制性早孕因子进行奶牛妊娠诊断   总被引：1，自引：0，他引：1  

Thre.  WR 王建辰 《国外兽医学(畜禽疾病)》1994,15(3):28-28

  相似文献   

动物疯草中毒的国外研究进展     

丁伯良  王建辰 《动物医学进展》1993,(4)

本文详细地回顾了疯草的有毒成分苦马豆素及其它成分的分析经过;介绍了苦马豆素的毒性问题;根据最新文献对高山病综合征和疯草成癮问题作了概述。  相似文献   

17β-雌二醇-ARIS构建及其标准曲线的质量评估     

周乐  史远刚  李键  王建辰 《动物医学进展》2001,22(2):77-79

以 1 7β-雌二醇 -黄素腺嘌呤二核苷酸结合物为标记物 ,以葡萄糖氧化酶为全酶 ,建立了 1 7β-雌二醇脱辅基酶再激活免疫测定系统 (1 7β- E2 - ARIS) ,完成了两条标准曲线的制作 ,通过 logit代换法对两条标准曲线进行了直线回归。两条标准曲线的拟合度 (r)分别为0 .996 7* * 和 0 .9991 * * ,灵敏度分别为 1 1 .5 4pg· m L- 1 (2 . 31 pg·孔 - 1 )和 1 4.88pg·m L- 1 (2 . 98pg·孔 - 1 ) ,平均变异系数(CV% )分别为 4.6 4%和 9.34% ,测定范围为 31 .2 5～ 1 0 0 0 pg·m L- 1 。  相似文献   

Retained fetal membranes in the mare: A retrospective study          下载免费PDF全文

Provencher R  Threlfall WR  Murdick PW  Wearly WK 《The Canadian veterinary journal. La revue veterinaire canadienne》1988,29(11):903-910

A retrospective study of 3456 deliveries was conducted from the records of four Standardbred broodmare farms where mares were bred by artificial insemination and maintained under close veterinary supervision. Retained fetal membranes (RFM) were observed in 10.6% of the deliveries. Retained fetal membranes occurred more frequently (p < 0.05) after dystocia and in mares which had RFM the previous year. Retained fetal membranes after normal foaling had no significant effect on the reproductive performance (pregnancy rate, pregnancy loss rate, or foaling rate), nor on the general health of the mares, regardless of the duration of RFM (3 to 144 hours). Postfoaling laminitis was not observed. Oxytocin therapy of mares with RFM starting at two hours postpartum significantly reduced the incidence of RFM ≥ 8 hours. Mares with RFM which had received intrauterine antimicrobials between foaling and first breeding had a foaling rate similar to mares with RFM which had not received intrauterine therapy.  相似文献   

Pluronic poisoning in a herd of dairy calves     

Teague WR 《New Zealand veterinary journal》1986,34(7):104-105

Of 32 calves given an unknown amount of a pluronic bloat mixture with their milk, 28 died in convulsions over 24 hours. Supportive therapy was unsuccessful. Concentrations of pluronic present in abomasal and rumenal contents supported a diagnosis of pluronic poisoning.  相似文献   

Process modeling of nitrogen effects on carbon assimilation and allocation-a review     

Gillespie AR  Chaney WR 《Tree physiology》1989,5(1):99-112

Maximum forest productivity will only be realized through intensified management of mineral nutrition. This review examines selected individual tree and stand nutrition models. Nutrient supply is defined by mass flow and diffusion processes in a forest environment. Additionally, structures of biomass accumulation models are considered as well as nutritional limitations on assimilation functions and carbon allocation patterns.  相似文献   

Prevalence of gastrointestinal nematodes in dairy heifers in western Canada   总被引：3，自引：2，他引：1       下载免费PDF全文

Cox WR  Lemiski D 《The Canadian veterinary journal. La revue veterinaire canadienne》1989,30(8):666-668

A survey was conducted to estimate the prevalence of gastrointestinal nematodes in grazing dairy replacement heifers in western Canada. Fecal samples were collected from 566 animals on 34 farms distributed over the three prairie provinces. Fecal egg counts were performed using a modified Wisconsin centrifugation technique. The overall mean farm fecal egg count was 16.0 eggs per gram feces (range 0.7-78.1 epg). Gastrointestinal nematodes were demonstrated on every farm examined, and 93.3% of all individuals tested were positive.  相似文献