Hydroelectric reservoir inundation (Rio Madeira Basin, Amazon) and changes in traditional lifestyle: impact on growth and neurodevelopment of pre-school children     

Marques RC  Dórea JG  McManus C  Leão RS  Brandão KG  Marques RC  Vieira IH  Guimarães JR  Malm O 《Public health nutrition》2011,14(4):661-669

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Solvent dependence of the luminescence of N-arylaminonaphthalenesulfonates     

Seliskar CJ  Brand L 《Science (New York, N.Y.)》1971,171(3973):799-800

N-Methyl,N-phenyl-2-aminonaphthalene-6-sulfonate, a fluorescence probe, adsorbs to cycloheptaamylose with a stoichiometry of 1 : 1. The fluorescence of the complex is similar to that observed when the dye is dissolved in organic solvents. Similar fluorescence is observed with the dye in ice. The results are interpreted in terms of "solvent" relaxation during the excited state lifetime of the dye.  相似文献   

Porcine Parvovirus infection: review and diagnosis in a sow herd with reproductive failure   总被引：3，自引：0，他引：3  

L A van Leengoed  J Vos  E Gruys  P Rondhuis  A Brand 《The Veterinary quarterly》1983,5(3):131-141

In a commercial swine herd a rise was noted during the summer of 1981 in the number of repeat breeders, mostly four to eight weeks after serving. During the autumn there was a decrease in the litter size at birth and an increase in the number of stillborn and mummified piglets. Several gilts and sows showed a seroconversion against Porcine Parvovirus (PPV), determined by the Haemagglutination Inhibition test (HI-test). Characteristic pathological findings were seen in some maturely stillborn and neonatally decreased piglets (up to an age of 28 days); hepatic congestion and necrosis, accummulation of fluid in body cavities, myocarditis, and encephalitis were the most prominent features. Serological tests for antibodies in blood samples of one sow and body fluids of two stillborn piglets were suggestive of Porcine Parvovirus as the aetiological agent.  相似文献   

Factors related to shell deaths during artificial incubation of ostrich eggs     

Brand Z  Cloete SW  Brown CR  Malecki IA 《Journal of the South African Veterinary Association》2007,78(4):195-200

The ostrich industry experiences a high rate of embryonic mortalities during artificial incubation of eggs. Embryonic deaths were studied from data recorded on 37,740 fertile eggs incubated artificially during the 1998-2005 breeding seasons. Roughly 10,000 eggs that sustained embryonic mortalities were classified according to the stage and nature of death, i.e. before 21 days of incubation, after 21 days of incubation, deaths after pipping and rotten eggs. Although infection may have played a role in approximately 1300 rotten eggs, no detailed knowledge of the pathogens involved was available. The remainder of deaths could not be related to pathogens and the deaths were thus generally referred to as non-infectious. The overall level of embryonic mortality in all the eggs studied was 28.5 %. Overall embryonic mortality was affected by incubator, with higher levels (57.0 %) found in eggs incubated in an African Incubator and also in eggs that were transferred between incubators during incubation (38.1%). Overall embryonic mortality also increased in eggs produced by older females. Eggs produced in the autumn had the highest level of embryonic mortality at 53.6 %, whereas eggs produced in the winter had a marginally higher level of embryonic mortalities of 29.2 % compared with eggs produced during summer (27.4 %). Eggs produced by South African (SA) Black males crossed to Zimbabwean Blue females had high levels of embryonic losses of 45.7 %. The embryonic mortality of eggs produced by SA Blacks or Zimbabwean Blue breeding birds subjected to pure breeding was similar at approximately 33-34 %, but embryonic mortality was improved in eggs produced by Zimbabwean Blue males crossed to SA Black females (27 %). Embryonic mortality was increased in eggs that were set directly (32.0 %) or subjected to longer than 6 days of storage (43.5 %). Embryonic mortality was affected by year. The results that were obtained will assist in determining non-infectious factors that have a negative effect on hatching success. Steps can thus be taken to eliminate such factors that may compromise hatching success.  相似文献   

Hypertrophic osteopathy associated with renal pelvis transitional cell carcinoma in a dog     

Grillo TP  Brandão CV  Mamprim MJ  de Jesus CM  Santos TC  Minto BW 《The Canadian veterinary journal. La revue veterinaire canadienne》2007,48(7):745-747

A 6-year-old male, Belgian shepherd dog was presented with lethargy, oliguria, hematuria, and reluctance to move. The dog developed hypertrophic osteopathy secondary to renal pelvis transitional cell carcinoma. A nephrectomy was performed and after a year, the dog was completely asymptomatic, and no evidence of metastatic disease was present.  相似文献   

Colour Doppler Ultrasonography as a Tool to Assess Luteal Function in Santa Inês Ewes          下载免费PDF全文

LM Figueira  JF Fonseca  EKN Arashiro  JMG Souza‐Fabjan  ACS Ribeiro  E Oba  JHM Viana  FZ Brandão 《Reproduction in domestic animals》2015,50(4):643-650

The aim of this study was to evaluate luteal dynamics in the Santa Inês ewes using colour Doppler (CD) ultrasonography. Oestrus was synchronized in nulliparous females (n = 18), and subsequently, they were only teased (n = 6) or teased and mated (n = 12). Blood samples were collected daily for plasma progesterone (P₄) concentrations. Ultrasonographic images of corpora lutea (CL) in CD mode were obtained for further analysis in its largest diameter. The CD mode allowed an early sequential monitoring of CL that was visualized by the first time 0.77 ± 0.62 days after ovulation, with luteal area 29.68 ± 13.21 mm². During the luteogenesis, a progressive increase was observed, followed by a plateau of luteal area, vascularization area and plasma concentrations of P₄ reaching maximum values in D11 (124.0 ± 38.0 mm², 52.78 ± 24.08 mm² and 11.23 ± 4.89 ng/ml, respectively). In the luteolysis, the plasma concentrations of P₄ decreased sharply, whereas luteal and vascularization area gradually. The vascularization area was positively correlated with plasma concentrations of P₄ during the luteogenesis (r = 0.22) and luteolysis (r = 0.48). The luteal dynamics of Santa Inês ewes showed patterns similar to those observed in other sheep breeds studied. The CD ultrasonography has the potential to be used as a tool to assess luteal function in sheep.  相似文献   

Cardiovascular tolerance of intravenous lidocaine in broiler chickens (Gallus gallus domesticus) anesthetized with isoflurane          下载免费PDF全文

João Brandão  Anderson F da Cunha  Bruno Pypendop  Rhett Stout  Javier Nevarez  Thomas N Tully Jr 《Veterinary anaesthesia and analgesia》2015,42(4):442-448

ObjectiveTo determine the cardiovascular effects of lidocaine infused intravenously (IV) in broiler chickens.Study designTwo phase study: Phase 1, randomized up-and-down study to determine effective dose 50 (ED₅₀) for lidocaine; Phase 2, prospective randomized study to determine the cardiovascular effects of lidocaine.AnimalsSeventeen Ross-708 broiler chickens (Gallus gallus domesticus) [11 chickens (Phase 1) and 6 chickens (Phase 2)], weighing 2.6–4.3 kg.MethodsAfter induction of anesthesia with isoflurane and placement of monitoring equipment including invasive blood pressure, chickens were administered lidocaine IV. During Phase 1, using an up-and-down design, each animal received a variable dose selected based on the response of the previous animal. During Phase 2, each animal was administered 6 mg kg⁻¹ of lidocaine IV over 2 minutes. Clinically irrelevant cardiovascular effects were defined as a relative decrease of heart rate (HR) and mean blood pressure (MAP) <30% subsequent to IV lidocaine administration. The ED₅₀ was defined as the dose rate that would cause clinically irrelevant cardiovascular depression in 50% of the population.ResultsDuring Phase 1, using an up-and-down study design (n = 11), the ED₅₀ of lidocaine was determined to be 6.30 mg kg⁻¹ and 6.22 mg kg⁻¹ (95% confidence interval, 5.30–7.13 mg kg⁻¹), when calculated by Dixon's up-and-down method, and logistic regression, respectively. During Phase 2, following infusion of lidocaine (6 mg kg⁻¹), no clinically relevant effects on HR or MAP were detected in any animal.Conclusions and clinical relevancePrevious reports state that the dose of lidocaine used in birds should be =4 mg kg⁻¹. In this study, 6 mg kg⁻¹ of lidocaine injected IV was not associated with adverse cardiovascular effects. These results suggest that the dose of 4 mg kg⁻¹ can be exceeded, at least in chickens, and opens the possibility of other therapeutic uses for lidocaine in birds.  相似文献   

Steep drop in hematocrit of sheep undergoing sedation with acepromazine‐diazepam and epidural injections of ketamine,ketamine‐morphine or ketamine‐xylazine          下载免费PDF全文

Ceci R Leite  Fábio O Ascoli  Juliana de Oliveira  Felipe Z Brandão 《Veterinary anaesthesia and analgesia》2015,42(2):226-227

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Clinical papers     

L. A. van Leengoed  J. Vos  E. Gruys  P. Rondhuis  A. Brand 《The Veterinary quarterly》2013,33(3):131-141

In a commercial swine herd a rise was noted during the summer of 1981 in the number of repeat breeders, mostly four to eight weeks after serving. During the autumn there was a decrease in the litter size at birth and an increase in the number of stillborn and mummified piglets. Several gilts and sows showed a seroconversion against Porcine Parvovirus (PPV), determined by the Haemagglutination Inhibition lest (HI‐test). Characteristic pathological findings were seen in some maturely stillborn and neonatally deceased piglets (up to an age of 28 days); hepatic congestion and necrosis, accummulation of fluid in body cavities, myocarditis, and encephalitis were the most Prominent features. Serological tests for antibodies in blood samples of one sow and body fluids of two stillborn piglets were suggestive of Porcine Parvovirus as the aetiological agent.  相似文献   

Pulmonary histiocytic sarcoma in a rabbit     

Mary Leissinger  João Brandão  Nobuko Wakamatsu  Alexandre Le Roux  Gregory Rich  Stephen Gaunt 《Veterinary clinical pathology / American Society for Veterinary Clinical Pathology》2013,42(3):364-367

An approximately 8‐year‐old male castrated Dutch rabbit was evaluated for a 6‐day history of respiratory signs, which began as sneezing and progressed to tachypnea with anorexia. On physical examination, tachypnea and pale mucous membranes were noted. Thoracic radiographs revealed a soft tissue pulmonary mass, fine‐needle aspirates of which confirmed a neoplasia with malignant features suspicious for a histiocytic sarcoma. The rabbit was discharged and due to a rapidly deteriorating condition, the owner declined chemotherapy with Lomustine and elected euthanasia of the rabbit. The affected lung was submitted for histopathology. Histologic sections of the lung were characterized by clusters of histiocytic cells and multinucleated giant cells with occasional invasion of blood and lymphatic vessels. The histologic diagnosis was histiocytic sarcoma. To the authors' knowledge, this is the first case report of histiocytic sarcoma in a rabbit. Based on the clinical and radiologic findings in this case, histiocytic sarcoma should be included in the list of differentials for rabbits presenting with respiratory signs and evidence of a pulmonary mass.  相似文献