Assessment of Ram and Boar Spermatozoa during Cell-sorting by Flow Cytometry   总被引：1，自引：0，他引：1  

SL Catt  JK O'Brien  WMC Maxwell  G Evans 《Reproduction in domestic animals》1997,32(5):251-258

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Does the male stimulate oestrogen secretion in female canaries?     

WARREN RP  HINDE RA 《Science (New York, N.Y.)》1961,133(3461):1354-1355

Female Border canaries treated with oestrogen during the nonbreeding season may build nests, regardless of winter lighting, temperature, and absence of partner. Incubation may follow completion of the nest although ovulation is suppressed. Reactions obtained in the breeding season suggest that the male does not initiate but accelerates oestrogen production through the stimulation he provides.  相似文献   

Neural tube defects in four Shetland sheepdog puppies: clinical characterisation and computed tomography investigation     

ZM Thomas  JM Podadera  SL Donahoe  TSY Foo  L Weerakoon  H Mazrier 《Australian veterinary journal》2020,98(7):312-318

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Partially Molten Middle Crust Beneath Southern Tibet: Synthesis of Project INDEPTH Results   总被引：23，自引：0，他引：23  

KD Nelson  W Zhao  LD Brown  J Kuo  J Che  X Liu  SL Klemperer  Y Makovsky  R Meissner  J Mechie  R Kind  F Wenzel  J Ni  J Nabelek  C Leshou  H Tan  W Wei  AG Jones  J Booker  M Unsworth  WSF Kidd  M Hauck  D Alsdorf  A Ross  M Cogan  C Wu  E Sandvol  M Edwards 《Science (New York, N.Y.)》1996,274(5293):1684-1688

INDEPTH geophysical and geological observations imply that a partially molten midcrustal layer exists beneath southern Tibet. This partially molten layer has been produced by crustal thickening and behaves as a fluid on the time scale of Himalayan deformation. It is confined on the south by the structurally imbricated Indian crust underlying the Tethyan and High Himalaya and is underlain, apparently, by a stiff Indian mantle lid. The results suggest that during Neogene time the underthrusting Indian crust has acted as a plunger, displacing the molten middle crust to the north while at the same time contributing to this layer by melting and ductile flow. Viewed broadly, the Neogene evolution of the Himalaya is essentially a record of the southward extrusion of the partially molten middle crust underlying southern Tibet.  相似文献   

A comparison of two different ketamine and diazepam combinations with an alphaxalone and medetomidine combination for induction of anaesthesia in sheep     

VP Walsh  M Gieseg  PM Singh  SL Mitchinson 《New Zealand veterinary journal》2013,61(2):136-141

Abstract

AIMS: To investigate the perceived adverse effects of a particular batch of ketamine during induction of anaesthesia in sheep and to assess if any adverse effects would make intubation more difficult for the veterinary students.

METHODS: Thirty adult sheep (mean bodyweight 74.5 (SD 9.4) kg) were randomly assigned to one of six groups of five sheep. Sheep in Groups A and B received I/V 0.5 mg/kg diazepam and 10 mg/kg ketamine (Ketamine Injection; Parnell Laboratories NZ Ltd, of the suspect batch); those in Groups C and D received I/V 0.5 mg/kg diazepam and 10 mg/kg ketamine (Ketalar; Hospira NZ Ltd.), and those in Groups E and F received I/V 2 μg/kg medetomidine and 2 mg/kg alphaxalone. In Groups A, C and E, intubation was by an experienced anaesthetist, and in Groups B, D and F intubation was by a veterinary student. Time from injection to successful intubation, the ease of intubation, saturation of haemoglobin with oxygen (SpO₂) and partial pressure of oxygen in arterial blood (PaO₂) were measured before the sheep were connected to an anaesthetic machine and allowed to breath oxygen. Times to extubation, holding its head up and standing, maximum and minimum heart rates, respiratory rates, maximal end tidal CO₂, and the quality of recovery were then recorded.

RESULTS: There were no measurable differences in outcomes between sheep in Groups A and B compared with C and D. Time to intubation was slightly shorter for the experienced anaesthetist than the student, but the difference was not significant. The sheep in Groups E and F took less time to recover than those in Groups A?D (p<0.05), but there were no significant differences between the groups in either the ease of induction or quality of recovery. Most sheep in Groups E and F showed minor excitatory effects, mainly at induction, which did not interfere with induction. Respiratory rates were lower in Groups E and F than Groups A?D (p<0.01), but SpO₂ was higher in Groups E and F than A and B (p<0.05).

CONCLUSIONS: The clinical impression that the batch of Parnell ketamine produced unexpected effects was shown to be incorrect. All the combinations produced anaesthesia that allowed intubation by the veterinary student.

CLINICAL RELEVANCE: All the drug combinations produced satisfactory anaesthesia in sheep, but the alphaxaloneand medetomidine combination resulted in faster recovery.  相似文献   

Cost effectiveness of extending and implementing a mastitis control program     

SL HILL  TJ NICHOLLS  MG BARTON  DJ OVEREND 《Australian veterinary journal》1990,67(12):469-469

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Release of Picloram from Roots*     

WARREN L. WEBB  MICHAEL NEWTON 《Weed Research》1972,12(4):391-394

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The ultraviolet microscopy of the living cell's response to lethal X-radiation     

MONTGOMERY PO  WARREN S 《Science (New York, N.Y.)》1953,117(3048):589-591

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Development of a Competitive Quantitative PCR Strategy for Evaluating the Expression Stability of 18s rRNA during In Vitro Maturation of Buffalo (Bubalus bubalis) Follicular Oocytes     

APS Aswal  TK Datta  S Raghav  S De  P Yadav  SL Goswami 《Reproduction in domestic animals》2007,42(2):195-201

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Year-to-year variations in Bering Sea ice cover and some consequences for fish distributions   总被引：7，自引：0，他引：7  

TINA WYLLIE-ECHEVERRIA  & WARREN S. WOOSTER 《Fisheries Oceanography》1998,7(2):159-170

The southernmost extension of winter ice cover varies interannually and on longer time scales, reflecting large-scale changes in driving forces, especially in the position and intensity of the winter Aleutian Low Pressure System. A conspicuous pattern is alternating warm and cool periods of several years' duration. These variations in sea ice cover are reflected in the character of a subsurface cold pool, formed as stratification isolates the deeper cold waters from surface exchanges. The cold pool is better developed and more extensive in summers that follow deep southward penetration of winter sea ice. Interannual and decadal-scale variations in the distributions of some fish stocks reflect those of ice and thermal conditions. In particular, the distribution of walleye pollock, Theragra chalcogramma, varies significantly with multiannual cool and warm years while Arctic cod, Boreogadus saida, is only present within the cold pool. The relation among climate variations, sea ice cover, subsurface thermal conditions, and fish distribution provides information on how climate affects marine ecosystems and may also have practical application in predicting fish distributions.  相似文献