Cold‐pressed rapeseed cake as a component of the diet of common carp (Cyprinus carpio L.): effects on growth,nutrient utilization,body composition and meat quality     

J. MAZURKIEWICZ  A. PRZYBYŁ  G. CZYŻAK‐RUNOWSKA  A. ŁYCZYŃSKI 《Aquaculture Nutrition》2011,17(4):387-394

The aim of the study was to determine the possibility of inclusion of cold‐pressed rapeseed cake (CPRC) in diets for common carp, Cyprinus carpio L. Four isonitrogenous (322 g kg^?1 crude protein) and isoenergetic diets (17.5 MJ kg^?1) with four levels of CPRC incorporation 0, 110, 220 and 330 g kg^?1 (treatments RC0, RC11, RC22 and RC33, respectively) were evaluated in a 50‐day growth test with common carp of 500 g initial weight. Statistically significant higher final weights (1215–1243 g) were obtained in fish fed diets including CPRC. Fish growth rates were nearly identical in all treatments (specific growth rate of 1.7–1.8% day^?1). Similar results were obtained in respect of feeding coefficients (FCR) that ranged from 1.6 to 1.8. Crude protein and ash concentration in fish bodies did not change. Statistically significant decreases in moisture content were found in carp in groups RC22 and RC33. Statistically significant increase of crude lipid in fish bodies were found in groups RC22 and RC33. The slaughter traits and meat quality analysis of carp did not show significant differences. We conclude that it is possible to include up to 330 g kg^?1 of CPRC in diets of 2‐year‐old common carp without significant effects on growth and food utilization.  相似文献   

History of atmospheric lead deposition since 12,370 (14)C yr BP from a peat bog, jura mountains, switzerland   总被引：3，自引：0，他引：3  

W Shotyk  D Weiss  PG Appleby  AK Cheburkin  RFM Gloor  JD Kramers  S Reese  Van Der Knaap WO 《Science (New York, N.Y.)》1998,281(5383):1635-1640

A continuous record of atmospheric lead since 12,370 carbon-14 years before the present (14C yr BP) is preserved in a Swiss peat bog. Enhanced fluxes caused by climate changes reached their maxima 10, 590 (14)C yr BP (Younger Dryas) and 8230 (14)C yr BP. Soil erosion caused by forest clearing and agricultural tillage increased lead deposition after 5320 (14)C yr BP. Increasing lead/scandium and decreasing lead-206/lead-207 beginning 3000 (14)C yr BP indicate the beginning of lead pollution from mining and smelting, and anthropogenic sources have dominated lead emissions ever since. The greatest lead flux (15.7 milligrams per square meter per year in A.D. 1979) was 1570 times the natural, background value (0.01 milligram per square meter per year from 8030 to 5320 (14)C yr BP).  相似文献   

Isolation and identification of a novel salmon gill poxvirus variant from Atlantic salmon in Eastern Canada     

Francis LeBlanc  Delphine Ditlecadet  Jean‐Ren Arseneau  Royce Steeves  Linda Boston  Pascal Boudreau  Nellie Gagn 《Journal of fish diseases》2019,42(2):315-318

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Limited genetic diversity across pathogen populations responsible for the global emergence of boxwood blight identified using SSRs     

N. LeBlanc  B. Gehesquière  C. Salgado-Salazar  K. Heungens  J. A. Crouch 《Plant pathology》2019,68(5):861-868

Boxwood blight is an emerging disease of ornamental as well as native boxwood. The disease became widely established in Europe at the beginning of the 21st century, prior to its more recent discovery in North America and Asia. Two sister-species of fungi cause the disease, Calonectria pseudonaviculata (Cps) and C. henricotiae (Che). Prior efforts to quantify intraspecific genetic polymorphisms of Cps and Che have yielded little information, limiting the ability to understand the evolution and migration of these pathogens. This study describes the development and implementation of simple sequence repeat (SSR) markers to analyse genetic diversity from a global collection of Cps and Che isolates, representing major blight outbreaks since the disease was first identified in the UK in the late 1990s. Analysis of the Cps CB002 genome sequence identified 180 single copy SSR loci using stringent search criteria, 11 of which were polymorphic and used to screen a global sample of 306 isolates. Fourteen multilocus genotypes of Cps and two multilocus genotypes of Che were identified. Twelve of the 14 Cps genotypes differed from each other by a single allele. The most common Cps genotype was found on all continents where boxwood blight is confirmed. Based on measurement of linkage disequilibrium, Cps showed no evidence of sexual recombination. Further in silico analysis identified 1594 SSRs using relaxed SSR definition criteria. Comparison of these SSR-containing loci with Cps and Che genome sequences representing three different genotypes demonstrated that single nucleotide polymorphisms might serve as informative genetic markers for future studies.  相似文献   

Carcinoma ex pleomorphic adenoma with sebaceous differentiation in the mandibular salivary gland of a dog     

Smrkovski OA  LeBlanc AK  Smith SH  LeBlanc CJ  Adams WH  Tobias KM 《Veterinary pathology》2006,43(3):374-377

A carcinoma ex pleomorphic adenoma was diagnosed in the left mandibular salivary gland of an 8-year-old female spayed dog. The animal presented with a large nonpainful swelling in the left submandibular region. A computed tomography scan detected an irregularly enhancing soft tissue mass that was closely associated with the left external ear canal and extended to the left wing of the atlas. On surgical exploration, the mass was intimately associated with the left mandibular salivary gland. Both the mass and the adjacent gland were removed, and the diagnosis was determined by histopathology. The tumor was comprised of basaloid and low columnar epithelial cells, many glandular units formed by well-differentiated sebocytes, and multifocal regions of necrosis, mineralization, and hemorrhage. Salivary gland tumors with sebaceous differentiation are very rare in animals, with one previously reported case in a cat.  相似文献   

Cutting balloon catheterization for interventional treatment of cor triatriatum dexter: 2 Cases     

Nicole LeBlanc  Teresa C. DeFrancesco  Allison K. Adams  Clark E. Atkins  Sandra P. Tou  James Curt Fudge  Bruce W. Keene 《Journal of Veterinary Cardiology》2012,14(4):525-530

Cutting balloon dilatation was performed successfully in two dogs with cor triatriatum dexter and clinical signs of ascites. The cutting balloon catheter uses incisional microtomes embedded in a balloon catheter. During balloon expansion, these microtomes incise the adjacent tissue, decreasing circumferential wall stress. This theoretically reduces both the likelihood of fracturing the adjacent tissues in an uncontrolled manner and the potential neoproliferative response to standard balloon dilatation and the subsequent incidence of re-stenosis. In both cases described, clinical signs resolved completely following cutting balloon dilatation of the anomalous membrane. Based on the outcome of these 2 cases, cutting balloon dilatation appears to be a viable treatment option for dogs affected with cor triatriatum dexter.  相似文献   

Identification of blue staining vaccine‐derived material in inflammatory lesions using cultured canine macrophages          下载免费PDF全文

Jennifer L. Scruggs  Casey J. LeBlanc 《Veterinary clinical pathology / American Society for Veterinary Clinical Pathology》2015,44(1):152-156

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Serial evaluation of neutrophil function in tumour‐bearing dogs undergoing chemotherapy          下载免费PDF全文

A. K. LeBlanc  C. J. LeBlanc  B. W. Rohrbach  S. A. Kania 《Veterinary and comparative oncology》2015,13(1):20-27

We hypothesized that neutrophil function in tumour‐bearing dogs is negatively impacted by chemotherapy. Flow cytometric techniques were used to assess neutrophil oxidative burst and phagocytic activities at baseline, 7 and 21 days after induction chemotherapy in 20 dogs with lymphoma. Dogs had a lower percentage of neutrophils exhibiting oxidative burst activity after stimulation with Escherichia coli (day 7; P = 0.009) and phorbol 12‐myristate 13‐acetate (PMA) (days 7 and 21; P = 0.0003 and P = 0.01, respectively), compared with healthy controls. From day 0 to 7, the percentage of neutrophils exhibiting oxidative burst activity decreased after stimulation with E. coli (P = 0.016) and PMA (P = 0.0006). Induction chemotherapy suppresses the percentage of neutrophils capable of oxidative burst in dogs with lymphoma, with improvement in phagocytic activity over time (P = 0.03). The impact of neutrophil dysfunction on incidence and severity of sepsis in dogs receiving chemotherapy should be investigated.  相似文献   

A capillary electrophoresis laser-induced fluorescence method for analysis of potato glycoalkaloids based on a solution-phase immunoassay. 2. Performance evaluation     

Driedger DR  LeBlanc RJ  LeBlanc EL  Sporns P 《Journal of agricultural and food chemistry》2000,48(9):4079-4082

Glycoalkaloids (GAs) occur naturally in potatoes and are toxic to humans and animals. The objective of the present study was to evaluate the performance of a solution-phase immunoassay coupled to capillary electrophoresis with laser-induced fluorescence (CE-LIF) detection for the determination of total glycoalkaloids in potatoes. The immunoassay was based on a competition between potato glycoalkaloids and fluorescently labeled solanidine. Reaction products were separated in the capillary zone electrophoresis mode. A calibration curve of signal vs log[GA] was linear from 50 to 400 nM. The CV for duplicate and day-to-day analyses averaged 5.7% and 12%, respectively. Spike recoveries ranged from 85 to 97% for spike levels ranging from 43 to 170 microg/g fresh potato. Potato samples with GA concentrations ranging from <40 to >200 microg/g were successfully analyzed, indicating that immuno-CE-LIF is a rapid alternative to traditional ELISA and HPLC methods.  相似文献   

A rapid test for chemical maturity monitoring of tubers     

W. K. Coleman  J. LeBlanc  T. Morishita 《American Journal of Potato Research》1996,73(11):501-507

A rapid procedure for determining tuber maturity and processing quality using a blood glucose monitor is outlined. The procedure is simple to use, inexpensive and gives acceptable percent glucose and sucrose rating (SR) values for commercial applications. The procedure has been used successfully for determining the best time to sell commercial quantities of stored tubers (cvs. Norchip, Niska) for processing as chips in Alberta.  相似文献