Immunization against polyandroalbumin leads to increases in lambing and tailing percentages     

Geldard H  Scaramuzzi RJ  Wilkins JF 《New Zealand veterinary journal》1984,32(1-2):2-5

A series of 10 farm trials was conducted in which the lambing performance of ewes immunised against polyandroalbumin was compared with that of untreated ewes in the same flock. The trials show that polyandroalbumin treatment is a reliable method of increasing lambing and tailing percentages in New Zealand flocks. An average of 39 extra lambs born per 100 ewes tupped was achieved on farms where ewes were given two treatments about four weeks apart and rams were introduced 18-26 days after the second dose. On farms where rams were introduced less than 12 days after this booster injection an average of 19 extra lambs born per 100 ewes tupped resulted. On farms where rams were introduced at 18-26 days post booster injection an average of 35 extra lambs were tailed for every 100 ewes tupped. The response for immunization increased in direct relation to the liveweight of the ewes at tupping.  相似文献   

Virus‐neutralising antibody responses in horses following vaccination with Equivac® HeV: a field study          下载免费PDF全文

RHH Tan  A Hodge  R Klein  N Edwards  JA Huang  D Middleton  SP Watts 《Australian veterinary journal》2018,96(5):161-166

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Continuous infusion of propofol in calves: bispectral index and hemodynamic effects          下载免费PDF全文

Mauricio Deschk  Juliana T Wagatsuma  Marcelo A Araújo  Guilherme GF Santos  Sergio SR Júnior  Caio JX Abimussi  Carlos E Siqueira  Jéssica CL Motta  Silvia HV Perri  Paulo SP Santos 《Veterinary anaesthesia and analgesia》2016,43(3):309-315

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Determination of altosid insect growth regulator in waters, soils, plants, and animals by gas-liquid chromatography.     

W W Miller  J S Wilkins  L L Dunham 《Journal of the Association of Official Analytical Chemists》1975,58(1):10-18

Residues of isopropyl (2E,4E)-11-methoxy-3,7,11-trimethyl-2,4-dodecadienoate (Altosid) insect growth regulator are determined in waters, soils, plants, milk, eggs, fish, shellfish, poultry and cattle tissues, blood, urine, and feces. Acetonitrile is the primary extraction solvent for all samples. Residues are extracted by high-speed blending followed by vacuum filtration. Fatty extracts are subjected to cold-temperature precipitation and filtration. Samples are cleaned up by petroleum ether partitioning and Florisil and neutral alumina chromatography. The concentrated eluants are analyzed by gas-liquid chromatography (GLC) on columns of differing polarity, using hydrogen flame ionization detectors. The identity of suspected residues is confirmed by additional GLC and by mass fragmentography. The lower limits of detection were: water samples, 0.0004-0.001 ppm; soils, blood, and urine, 0.001 ppm; forage grasses, forage legumes, and rice foliage, 0.005 ppm; and milk, eggs, fish, shellfish, poultry and cattle tissues, and feces, 0.010 ppm.  相似文献   

THE ENSILAGE OF AUTUMN-SOWN RYE     

R. F. Wilson  R. J. Wilkins 《Grass and Forage Science》1972,27(1):35-42

Autumn-sown rye was cut on five dates in spring and ensiled in laboratory silos. On two of the dates forage-harvested material was ensiled in PVC silos (containing about 1 t of fresh crop) as well as in laboratory silos. Ensiling was carried out with and without the addition of formic acid or glucose solution. After 96 days in laboratory silos, rye cut before ear-emergence and ensiled without additives gave silages of high pH value and high ammonia content. After ear-emergence satisfactory silage was produced without an additive, but the addition of formic acid always resulted in silages having lower pH values and lower ammonia contents. The addition of glucose resulted in silages with only slightly lower pH values and ammonia contents which were closely similar to those made without addition. Silages made in PVC silos were all well preserved, as indicated by low contents of acetic and butyric acids, but the addition of formic acid resulted in pH values and ammonia contents lower than those found in other treatments.  相似文献   

SILAGE FERMENTATION AND FEED VALUE     

R. J. Wilkins  R. F. Wilson 《Grass and Forage Science》1971,26(2):108-108

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Tolerance to the Nephrotoxic Component of Narthecium ossifragum in Sheep: The Effects of Repeated Oral Doses of Plant Extracts     

Flåøyen A  Hove K  Wilkins AL 《Veterinary research communications》2001,25(2):127-136

Young adult sheep were dosed with extracts of Narthecium ossifragum plants by the oral or parenteral routes and the resulting nephrotoxicity was assessed from the increases in the concentrations of creatinine and urea in the serum. Following single intraruminal or intraperitoneal doses of extracts derived from 30 g N. ossifragum (wet weight) per kg live weight (kg lw), serum creatinine concentrations increased from about 100 mol/L to between 260 and 510 mol/L. The serum urea concentrations increased from about 5–8 mmol/L to between 11 and 66 mmol/L in individual sheep. Daily intraruminal administration of 5–30 g/kg lw to three sheep over a 10- or 15-day period increased creatinine concentrations from 100 mol/L to 300–760 mol/L, and urea concentrations from 5–8 mmol/L to 35 mmol/L. A single intraperitoneal challenge dose of 30 g/kg lw, delivered 7 or 12 days after the final intraruminal dose, did not lead to increased serum creatinine or urea concentrations, indicating that oral treatment had apparently resulted in an increased tolerance to the nephrotoxic principle(s) in N. ossifragum.  相似文献   

The use of biodegradable polymers as formulating agents for controlled release pesticides     

Richard M. Wilkins 《Pest management science》1978,9(5):443-444

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LOW RELEASE OF SELENIUM FROM RECOVERED RUMINAL PELLETS   总被引：1，自引：0，他引：1  

J. F. Wilkins  B. A. Hamilton 《Australian veterinary journal》1980,56(2):87-89

The effectiveness of selenium pellets in grazing Merino sheep was examined by comparing the selenium status of treated and untreated animals over a 13 month period. The selenium status of treated sheep, as measured by blood glutathione peroxidase levels, had reached a maximum 3 months after treatment and there was a marked decline between 5 and 13 months. All pellets were recovered from treated sheep at slaughter this confirmed that the observed decline was not due to a loss of pellets.
In a separate study sheep were slaughtered 14 months after treatment and some of the recovered pellets were readministered to sheep maintained on a low selenium diet. The selenium status of the sheep receiving recovered pellets remained low. This bioassay technique indicated that there was little available selenium released from these pellets. The selenium status of sheep given previously unused pellets was declining after 18 weeks.  相似文献   

Fluid inclusion assemblages of the stratiform broken hill ore deposit, new South wales, australia     

Wilkins RW 《Science (New York, N.Y.)》1977,198(4313):185-187

Minerals of the Broken Hill lode in New South Wales, Australia, have a rich assemblage of fluid inclusions. Most typically they contain a high-salinity aqueous liquid and a high-density carbon dioxide and methane gas. Northerly trending shear zones in the area are characterized by a distinct assemblage of inclusions. The inclusions provide a record of the sequence of metamorphic fluids since the period of high-grade metamorphism. Inclusions from the period of ore formation have been eliminated by repeated deformation and recrystallization.  相似文献