BOOK REVIEW     

GR FALLON 《Australian veterinary journal》1992,69(9):233-233

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Experimental acute yellow-wood (Terminalia oblongata) intoxication in sheep     

LJ FILIPPICH  GR CAO 《Australian veterinary journal》1993,70(6):214-218

SUMMARY An aqueous suspension of air-dried, hammer-milled leaf of Terminalla oblongata (yellow-wood) was administered to sheep by gavage, as a single dose of 5 to 20 g (dry weight)/kg body weight. Doses of 15 g/kg, or more, caused depression, Inappetence, abdominal pain and reduced ruminal movements within 24 to 48 h and some sheep also showed dyspnoea, oplsthotonus and champing of the Jaws. Haematology and blood gas and acid-base measurements were unaffected. In sheep given a dose of 12.5 g/kg, or more, plasma osmolality, aspartate aminotransferase activity and potassium and bilirubin concentrations Increased while plasma total protein markedly decreased and plasma sodium concentration and alkaline phosphatase activity remained normal. Most sheep were necropsled 48 h after dosing. The liver showed zonal hepatocellular necrosis, the pattern of which varied with the dose given. No renal lesions were observed, although one sheep given a very high dose became azotaemic and hyperkalaemic. Hydrothorax, hydroperlcardlum and ascltes developed In sheep given doses of 15 or 20 g/kg.  相似文献   

An attempt to reduce calcium phosphate deposits on cobaltic oxide pellets by citric acid treatment     

E D Andrews  B J Stephenson  C E Isaacs 《New Zealand veterinary journal》1964,12(5):113-117

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Foliar interception and retention values after pesticide application: a proposal for standardised values for environmental risk assessment     

J Linders  H Mensink  G Stephenson  D Wauchope  K Racke 《Pest management science》2002,58(3):315-315

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Dislodgeable residues and persistence of diazinon,chlorpyrifos and isofenphos following their application to turfgrass     

Mark K. Sears  Cindy Bowhey  Heinz Braun  Gerald R. Stephenson 《Pest management science》1987,20(3):223-231

In laboratory experiments, residues of diazinon applied to turfgrass, Poa pratensis L., that could be dislodged by rubbing with cheese-cloth, declined from c. 10% of the total applied when the grass was vigorously rubbed immediately after application to 0.3% after 1 day. Sunlight did not influence the rate of decline in dislodgeable residues or residues remaining on or within the leaf blades. In field experiments where 4.5 kg ha^?1 of diazinon was applied in liquid or granular form, about 20 times more diazinon was dislodged from the liquid formulation immediately after application than from the granular. By 1 day after application the percentage of the total applied diazinon that could be dislodged was equal for both formulations. Rainfall had a significant effect on the amount dislodged from grass blades, but mowing did not. Similar rates of decline in the dislodgeable fraction of diazinon, chlorpyrifos and isofenphos were observed in field experiments. Recovery of the dislodgeable fraction declined to 0.25% or less of the total amount of any of these insecticides by 1 day after application. However, residues in the thatch remained sufficiently high for control of insects for up to 7 days after application for diazinon and 14 days for chlorpyrifos and isofenphos.  相似文献   

Metabolism of herbicides in higher plants: K.K. Hatzios and D. Penner,Burgess Publ., Minneapolis,Minn. 1982. $29.95     

G.R. Stephenson 《Pesticide biochemistry and physiology》1983,20(2):256-257

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Religious slaughter     

Stephenson RS 《The Veterinary record》2003,153(2):63-64

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Using remote sensing to predict outbreaks of Oestrus ovis in Namibia     

S. Flasse  C. Walker  H. Biggs  P. Stephenson  P. Hutchinson 《Preventive veterinary medicine》1998,33(1-4):31-38

The Directorate of Veterinary Services of the Ministry of Agriculture, Water and Rural Development of Namibia issues warnings to farmers in the south of the country about the likelihood of infestation of small-stock by the nasal bot fly, Oestrus ovis. Farmers can then treat their stock at the most appropriate time. The O. ovis puparia develop at shallow depths in the soil and the timing of emergence is directly dependent on climatic conditions, specifically the number of degree-days above a particular threshold soil temperature. Based on temperature measurements from only a few stations scattered throughout the country, the veterinary department warnings lack precision in space and time. This paper presents an attempt to support the programme of warnings with accumulated temperature information from Meteosat satellite images, in order to strengthen predictions of the time of emergence in specific places, and to improve the precision and reliability of warnings given to farmers.  相似文献   

Immunohistochemical Expression of Growth Factors in the Follicular Wall of Normal and Cystic Ovaries of Sows          下载免费PDF全文

FJF Sant'Ana  JL Reis Junior  GR Blume  EJ Gimeno  F Rey  HH Ortega 《Reproduction in domestic animals》2015,50(2):327-332

The expression of growth factors was evaluated immunohistochemically in normal and cystic ovaries of sows. The immunohistochemically stained area (IHCSA) was quantified by image analysis to analyse the expression of these proteins in the follicular wall of secondary, tertiary and cystic follicles. IGF‐I immunoreactivity was strong in the granulosa cell layer (GC), moderate in the theca interna (TI) and mild in the theca externa (TE) of the normal follicles. There was severe reduction of the labelling to IGF‐I in the GC of the follicular and luteinized cysts. In the normal follicles, the reactivity for IGF‐II was very similar to pattern noted in IGF‐I. There was reduction of the IHCSAs in the GC of the follicular and luteinized cysts, but the decrease was not significant. The staining of the IGF‐II in the TI and TE of the cysts was increased, in comparison with normal follicles. The IHCSAs for VEGF were higher in the GC and TE of the normal follicles in contrast to TI, but this difference was noted only in the tertiary follicle. The VEGF reactivity increased in the GC of the cysts, in relation to normal follicles. The results of the current study show that the formation of ovarian cysts in sows is associated with alterations in the immunohistochemical expression of some growth factors.  相似文献   

Methyl bromide fumigation and delayed mortality: safe trade of live pests?     

Phillips  C. B.  Iline  I. I.  Novoselov  M.  McNeill  M. R.  Richards  N. K.  van Koten  C.  Stephenson  B. P. 《Journal of pest science》2015,88(1):121-134

Journal of Pest Science - Live organisms intercepted from treated commodities during phytosanitary inspections usually arouse suspicions of treatment failure, sub-standard treatment application, or...  相似文献