鹌鹑的饲养管理

1 前言 　　鹌鹑是一种比较难饲养的禽,一般饲养在小笼子里.鹌鹑虽易感染普通禽病,但是具有相当的抵抗力.鹌鹑大约6周龄性成熟,通常在50日龄时达到高产期.只要管理适当,鹌鹑能够在产蛋第一年产200个蛋.生命周期为2～2.5年. 　　……     

Using growth-promoting implants in stocker cattle.

This article discusses the use of implants in grazing stocker cattle to increase the rate of growth and the efficiency of metabolic and economic growth.     

Pulmonary oedema as a suspected adverse drug reaction following vincristine administration to a cat: a case report

This report describes recurrent respiratory distress following vincristine administration to a cat with chronic lymphocytic leukaemia. The cat was treated with a combination of vincristine, chlorambucil and prednisolone with initial success. After approximately 4 months, dyspnoea developed within 6 h of vincristine administration. Emergency therapy was instituted resulting in a full recovery. Further vincristine was administered; dyspnoea was similarly noted after all but one of these treatments. Dyspnoeic episodes were not attributable to alterations in vincristine dose or method of administration. The repeated temporal association was consistent with a suspected adverse drug reaction to vincristine.     

Clinical stage, therapy, and prognosis in canine anal sac gland carcinoma

BACKGROUND: Reports of canine anal sac gland carcinoma (ASGC) describe varied clinical presentations and management and differing responses to therapy. A unifying approach to clinical stage determination and management of this disease has yet to be presented. HYPOTHESIS: An ordinal clinical staging scheme for canine ASGC can be devised on the basis of responses to therapy for a retrospective cohort of affected dogs. ANIMALS: 130 dogs with naturally occurring ASGC. METHODS: A simplified clinical stage system and a management algorithm for canine ASGC were derived from retrospective evaluation of a cohort of 80 dogs; applicability of both was then prospectively evaluated in a cohort of 50 dogs. RESULTS: Retrospective evaluation revealed 4 statistically significant negative prognostic indicators for survival: lack of therapy, presence of distant metastases, presence of lymph node metastases, and primary tumor size. Lymph node extirpation was a statistically significant positive prognostic indicator by bivariate analysis. In both retrospective and prospective analyses, the modified clinical stage scheme revealed a significant association with survival time. CONCLUSIONS AND CLINICAL IMPORTANCE: The clinical staging scheme permits differentiation between groups in terms of prognosis and, therefore, decisions on therapy. This will facilitate application of appropriate therapy and enhanced communication and collaboration in further investigations of ASGC.     

Key biodiversity areas as globally significant target sites for the conservation of marine biological diversity

• 1. Recent approaches to the planning of marine protected area (MPA) networks for biodiversity conservation often stress the need for a representative coverage of habitat types while aiming to minimize impacts on resource users. As typified by planning for the Australian South‐east Marine Region, this strategy can be manipulated by political processes, with consequent biased siting of MPAs. Networks thus created frequently possess relatively low value for biodiversity conservation, despite significant costs in establishment and maintenance.
• 2. Such biases can be minimized through application of the data‐driven and species‐based concept of key biodiversity areas (KBAs).
• 3. By mapping locations of threatened species and populations that are highly aggregated in time or space, the KBA process allows marine sites of global biodiversity significance to be systematically identified as priority conservation targets. Here, the value of KBAs for marine conservation planning is outlined, and guidelines and provisional criteria for their application provided.

Copyright © 2008 John Wiley & Sons, Ltd.     

肠膜蛋白粉对早期断奶仔猪生产性能及消化道的影响

90头断奶仔猪(26～29日龄)根据体重随机分为6个处理 ,每个处理3个初始体重水平。试验前3周分别在基础日粮中添加如下6种成分 :0 %AP950(血浆蛋白粉) +0 %DPS(DriedPorcineSaluble ,肠膜蛋白粉)(对照)、2.5 %AP950、2.5 %DPS50、3.5 %DPS50、2.5 %AP950 +2.5 %DPS50和5 %DPS30 ;试验后两周 ,所有处理饲喂普通市售生长猪日粮。各处理日粮中的蛋白质、代谢能、赖氨酸、乳糖和钠浓度均在相同或相近水平上。在试验的第14天 ,从每个处理中随机抽取3头(共18头)试猪屠宰测定其肠绒毛高度、腺窝深度和消化道内胰蛋白酶、糜蛋白酶、淀粉酶、脂肪酶的活性。结果表明 :1.与对照组相比 ,试验前3周日粮中添加2.5 %AP950、2.5 %DPS50、3.5 %DPS50、2.5 %DPS50 +2.5 %AP950和5 %DPS30分别提高日采食量37.0 %、35.9 %、34.8%、37.4 %和41.9 % ;提高日增重69.5 %、52.7 %、81.7 %、61.8 %和82.4 % ;改善饲料转化率18.9 %、11.2 %、25.7 %、15.0 %和21.8 % ;降低腹泻指数42.2 %、20.4 %、40.9 %、34.8 %和37.8 %。2.试验后两周各处理间差异不显著 ,但添加2.5 %DPS50 +2.5 %AP950处理的日采食量和日增重较低。3.对照组酶活性低于其它各组 ,但各处理间消化道酶活性差异不显著。4.DPS和AP950能够促进肠绒毛生长和腺窝细胞发育     

Comparison of herbicide regimes and the associated potential environmental effects of glyphosate-resistant crops versus what they replace in Europe

While cultivation of transgenic crops takes place in seven of the EU member states, this constitutes a relatively limited part of the total acreage planted to these crops worldwide. The only glyphosate-resistant (GR) crop grown commercially until recently has been soybean in Romania. In addition, large-scale experimental European data exist for GR sugar and fodder beets, and, to a lesser extent, GR oilseed rape. These GR crops are likely to have an impact both on the use of herbicides and on the environmental impact of the latter. From the data on these GR crops, it appears that quantities of herbicides applied to GR beets are decreased while those on GR soybean are slightly increased compared with their conventional counterparts. Depending on the parameters used for prediction or measurement of environmental impacts of GR crops, generally similar or less negative impacts were observed compared with conventional crops. Favourable environmental effects of the glyphosate-containing herbicide regimes on GR crops appear feasible, provided appropriate measures for maintaining biodiversity and prevention of volunteers and gene flow are applied.