Comparison of Selected Endocrine Parameters During Luteal Phase and Pregnancy in German Shepherd Dogs and Beagles     

AR Günzel-Apel  N Beste  S Nottorf  F Eschricht  HO Hoppen  S Dieleman  A Einspanier 《Reproduction in domestic animals》2009,44(S2):59-64

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Concentrations of Prolactin, LH, Testosterone, TSH and Thyroxine in Normospermic Dogs of Different Breeds   总被引：1，自引：0，他引：1  

C Urhausen  A Seefeldt  FM Eschricht  A Koch  HO Hoppen  M Beyerbach  C Möhrke  SJ Dieleman  AR Günzel-Apel 《Reproduction in domestic animals》2009,44(S2):279-282

Concentrations of prolactin (PRL), LH, testosterone (T), TSH and thyroxine (T₄) were determined before and at 20, 120 and 180 min after a single iv injection of thyrotropin-releasing hormone (TRH) in eight Beagles, eight Fox Terriers, six Labrador Retrievers and five Great Danes that were normospermic. Mean basal PRL concentrations were lower in the Fox Terriers compared with the Great Danes (p < 0.05). Mean LH concentrations were higher in the Fox Terriers than in the Beagles, and T was lower in the Fox Terriers at some times but not others (p < 0.05). Thyroid Stimulating Hormone (TSH) concentrations did not differ among breeds, while mean basal T₄ values were lower in Fox Terriers compared with Labrador Retrievers and Great Danes (p < 0.05). Stimulation of T₄ secretion 120 and 180 min after iv TRH injection was most pronounced in the Beagles and less in the Fox Terriers (p < 0.05). The results of the present study indicate that potential breed differences in circulating concentrations of PRL, LH, T, TSH and T₄ in male dogs with apparently normal fertility can be encountered, but further studies are needed to determine whether the observed differences are typical features of these breeds, reflect subsets of dogs within breeds, or are in part because of possible uncontrolled parameters such as sample timing, ambient photoperiod, housing conditions or diet.  相似文献   

Effects of diazepam, ketamine, and their combination on intraocular pressure in normal dogs     

EH Hofmeister  CB Mosunic  BT Torres  AG Ralph  PA Moore  MR Read 《Veterinary anaesthesia and analgesia》2005,32(4):11-12

Ketamine has been implicated as causing increases in intraocular pressure. The purpose of this study is to document the effects of ketamine, diazepam, and their combination on intraocular pressure (IOP) in normal, unpremedicated dogs. Random-source dogs were assigned to one of five groups of 10 dogs each: ketamine 5 mg kg^–1 (KET5), ketamine 10 mg kg^–1 (KET10), diazepam 0.5 mg kg^–1 (VAL), ketamine 10 mg kg^–1 with diazepam 0.5 mg kg^–1 (KETVAL), saline 0.1 mL kg^–1 (SAL), all given intravenously. A baseline IOP was measured before injection, immediately after injection, and at 5, 10, 15, and 20 minutes following injection. IOP was increased over baseline immediately after injection in the KET5, KET10, and KETVAL groups; at 5, 10, and 15 minutes in the KET5 group; and at 20 minutes in the KETVAL group. The mean IOP change compared to SAL increased immediately after injection and at 5 minutes in the KET5, KET10, and KETVAL groups; at 10 and 15 minutes in the KET5 group, and at 20 minutes in the KETVAL group. The mean IOP increased up to 5.7, 3.2, and 3.1 mm Hg over mean baseline in the KET5, KET10, and KETVAL groups, respectively. All dogs in the KET5 group and the majority in the KETVAL and KET10 groups had an increase in their IOP over baseline. Ketamine caused a clinically and statistically significant elevation in IOP over baseline and compared to SAL. The concurrent addition of diazepam did not blunt this increase. Ketamine should be avoided in dogs with corneal trauma, glaucoma, or in those undergoing intraocular surgery.  相似文献   

Purification and characterization of three amylases from viscera of hard clam Meretrix lusoria     

Ching-Yu  TSAO  Yen-Hsin  HSU  Li-Min  CHAO  Shann-Tzong  JIANG 《Fisheries Science》2004,70(1):174-182

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中国土壤胶体研究 Ⅵ.西藏高原几种主要土壤的粘土矿物组成和演变     

许冀泉  杨德涌 《土壤学报》1964,12(3):275-285

西藏高原突起于我国西南,绝大部分地面的海拔高度在4000米以上,为世界上最高的大高原。它大致在第三纪开始形成,后来曾受第四纪冰川的深刻作用,高山顶部至今仍是冰川的活动场所^[1,2]。高原为昆仑山、唐古拉山、喜马拉雅山和横断山等大山脉所盘踞。  相似文献   

关于浙江金华地区红壤的基层分类问题          下载免费PDF全文

席承藩  周明樅  杜国华  许曼丽 《土壤学报》1966,14(1):51-58

我国长江以南的亚热带地区,多红壤分布,其中以第四纪红色粘土发育的红壤最为常见,均为主要垦殖对象。有的红壤垦殖利用情况良好,开垦后,土壤性质逐渐变好,得到稳定耕种;但是有的红壤利用很差,开垦两三年后,作物产量减低;有的红壤甚至连马尾松都长不好。红壤肥力的差别,显然受到红壤本身性状的影响,这些不同的土壤性状只有从土壤基层分类单元,才可区别出来。本文拟根据作者等在浙江金衡盆地九攀农中-带土壤详测所获得的部分结果,对本地区红壤的特性及其基层分类问题,作初步讨论。  相似文献   

The absence of neuromas in beaks of adult hens after conservative trimming at hatch   总被引：1，自引：0，他引：1  

CA LUNAM †  PC GLATZ‡  Y-J HSU 《Australian veterinary journal》1996,74(1):46-49

Objective To determine the effects of the amount of beak removed and cauterisation time on neuroma formation in hens.
Design A pathology study with controls.
Animals Twenty domestic fowl were beak-trimmed. Three non-beak-trimmed domestic fowl were used as controls.
Procedure Beaks of two age groups with two levels of beak removal and either 2 s or 4 s cauterisation, were investigated macroscopically and microscopically for deformities.
Results Scattered trauma-associated neuromas were present in the beaks of pullets 10 weeks after moderate trimming at hatch. Neuromas were not present in beaks of adult hens that had been similarly trimmed. Sensory corpuscles were present 10 and 70 weeks after moderate trimming, though fewer in number than in intact control hens. In contrast, trauma-associated neuromas persisted in beaks of 70-week-old hens that had been severely trimmed at hatch. A range of deformities that were absent in moderately trimmed hens, were observed in hens with severely trimmed beaks. Receptors were not seen in severely trimmed beaks.
Conclusion Beak-trimming at hatch induces the formation of neuromas, regardless of the amount of tissue removed. There is a critical amount of beak tissue that can be removed, beyond which trauma-associated neuromas will not resolve, but will persist in mature hens.  相似文献   

FLUORESCENT, ELECTRON MICROSCOPIC, AND IMMUNOELECTROPHORETIC STUDIES OF LABELED ANTIBODIES     

HSU KC  RIFKIND RA  ZABRISKIE JB 《Science (New York, N.Y.)》1963,142(3598):1471-1473

Antibodies, produced in rabbits, to each of three bacterial species have been doubly labeled with fluorescein and ferritin. Irrespective of which label was conjugated to the antibody first, immunologic activity was maintained. Moreover, these preparations gave as high a degree of specificity in fluorescent and electron microscopic studies as did singly labeled antibodies. Immunoelectrophoretic analyses and other immunologic tests further confirmed that the antibodies were conjugated to both labels without loss of specific activity. The technique thus permits the relatively simple method of immunofluorescence to be used as an aid in selecting optimtum ferritin antibody conjugates for localizing of antigen at the molecular level by means of electron microscopy.  相似文献   

Citizens' juries give verdict on whether private practice veterinarians should attend unvaccinated Hendra virus suspect horses     

EJ Annand  PA Reid  J Johnson  GL Gilbert  M Taylor  M Walsh  MP Ward  A Wilson  C Degeling 《Australian veterinary journal》2020,98(7):273-279

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Isolation of Cryptococcus neoformans var. grubii (serotype A) and C. magnus from the nasal lining of free-ranging quokkas (Setonix brachyurus)     

PA Martínez-Pérez  PA Fleming  TH Hyndman 《Australian veterinary journal》2020,98(12):610-615

Cryptococcus species are environmental yeasts, with a worldwide distribution and remarkable environmental adaptation. Although many species do not cause disease, C. neoformans and C. gattii are causative agents of cryptococcosis, a life threatening infection and a significant public health problem worldwide. Infection especially affects immunocompromised animals and humans. In wildlife, cryptococcosis appears to be more prevalent in captive populations. The objective of this study was to assess whether apparently healthy quokkas (Setonix brachyurus) harbor Cryptococcus spp. Using cultural and molecular methods, we studied yeasts isolated from nasal swabs collected from 130 free-ranging quokkas on Rottnest Island (RI, n = 97) and the mainland (n = 33) of Western Australia. Unspeciated Cryptococcus spp. (from four quokkas), C. neoformans var. grubii (serotype A) (two quokkas) and C. magnus (one quokka) were isolated from the nasal lining of apparently healthy quokkas from RI. Cryptococcus neoformans var. grubii was isolated from animals captured in a human-populated area on RI. There was no significant effect of the presence of Cryptococcus on the results of haematology, blood chemistry, peripheral blood cell morphology or clinical examination. To the best of our knowledge, this is the first documented isolation of C. neoformans var. grubii (serotype A) and C. magnus in a free-ranging macropod in Western Australia. The public health implications of this finding should be further explored.  相似文献