粉单竹丰产栽培技术研究

通过对惠州市龙门县的粉单竹进行了丰产栽培试验,结果表明:立地条件、造林方式对粉单竹产量影响显著,在沿岸河滩地或村前屋后,采用埋节育苗造林方式造林,施腐熟粪肥为主,辅以适量复合肥对粉单竹的产量有明显提高.     

MAGNETIC RESONANCE IMAGING OF CEREBRAL CORTICAL NECROSIS (POLIOENCEPHALOMALACIA) IN A DOG

A 3-year-old neutered female mixed breed dog was examined because of severe, generalized seizure activity, tetraparesis, and encephalopathic signs. Cerebrospinal fluid (CSF) evaluation was unremarkable except for a mild increase in protein. Serum and CSF titers for infectious diseases were negative. Magnetic resonance (MR) imaging examination of the brain was performed and lesions were found within the cerebral gray matter of the temporal and parietal lobes. The lesions had increased signal intensity on T1, T2, and proton density-weighted images. There was mild inhomogeneous enhancement following intravenous contrast medium administration. Neurologic status improved and the seizures were well controlled, but the dog never regained normal mentation and euthanasia was performed 10 weeks after initial evaluation. At necropsy, severe cerebral cortical necrosis was found in the regions corresponding to the lesions seen on MR imaging examination. Large numbers of fat-containing macrophages (gitter cells) were found within these areas, and are thought to be responsible for the characteristic hyperintensity seen on the MR images.     

畜禽养殖废水脱氮除磷研究进展

笔者介绍了SBR、上流式活性污泥床、fiehl prototype工艺等几种目前国内外较典型的集约化养殖场废水处理方法,比较了它们在脱氮除磷方面的优缺点及其应用和研究情况,简述了畜禽养殖废水脱氮除磷现状.最后对畜禽养殖废水脱氮除磷存在的问题进行了探讨,同时对其发展趋势进行了展望.     

俄罗斯风味红枣枸杞酸奶的研制

目的 以鲜牛乳、红枣、枸杞为主要原料,利用俄罗斯生产的特色菌种进行发酵,探究俄罗斯风味红枣枸杞酸奶的加工工艺。方法 以感官评分和乳清析出率为指标,在单因素试验的基础上,采用正交试验确定混合汁添加量、白砂糖添加量、接种量、发酵温度和发酵时间。结果 俄罗斯风味红枣枸杞酸奶的最佳加工工艺为混合汁20%,白砂糖3%,接种量3%,发酵温度42 ℃,发酵时间4 h。结论 制得的产品呈红褐色,口感软滑,酸甜可口,质地均匀。     

Identification of a periorbital wooden foreign body as the cause of chronic ocular discharge in a horse

The clinical, diagnostic and therapeutic features of a horse with a wooden foreign body embedded in the deep portion of the right masseter muscle adjacent to the right orbit are presented. The purpose of this report is to describe the clinical presentation, magnetic resonance imaging findings and treatment of a penetrating wooden foreign body in a horse that had no history of trauma or evidence of a puncture wound. This report documents the usefulness of magnetic resonance imaging to detect a wooden foreign body embedded in the soft tissues of a horse with a chronic copious ocular discharge. Two surgical procedures were necessary, which is a frequent complication encountered with wooden foreign bodies.     

微胶囊技术在饲料业中的应用

介绍了微胶囊技术以及饲料业中常用的芯、壁材和微胶囊化方法,并论述了微胶囊技术在饲料业中的应用。     

瘤胃微生物生态研究方法评述

瘤胃微生物生态研究方法主要经历了微生物纯培养、混合培养、微生物分子生物学技术[(从瘤胃中提取DNA,进行PCR-16S rDNA(rRNA)技术]、变性梯度凝胶电泳(DGGE)技术),在不同程度上揭示了瘤胃微生物群落丰富的多样性和生态功能.但由于各种方法本身的局限性,限制了人类对瘤胃微生物的全面了解,现代生物技术和传统微生物研究方法的配合将为瘤胃微生物生态研究提供较好的前景.     

羽毛粉加工工艺与开发

羽毛粉加工产品目前是饲料行业的主要蛋白原料,为了更好地促进羽毛粉的加工利用,提高羽毛粉加工产品的营养价值,结合目前各大中型企业的具体生产工艺,介绍了高温高压水解法、酶解—水解法和生物发酵法3种方法的生产工艺流程、工艺条件及所生产产品的质量特点。通过对比上述方法,说明生物发酵法是未来羽毛粉深加工的理想方法。