RESUMO

El neumatocele traumático, o pseudoquiste pulmonar traumático, es una complicación infrecuente del trauma cerrado de tórax, caracterizada por lesiones cavitadas únicas o múltiples de paredes fibrosas bien delimitadas, sin revestimiento epitelial. Representa un reto diagnóstico ante la prevalencia de etiologías más frecuentes de cavitación pulmonar, presentación clínica inespecífica y el carácter subreportado de la patología. Se presenta el caso de un paciente de 21 años, con cuadro clínico de fiebre y dolor torácico posterior a traumatismo contuso por accidente en motocicleta, con identificación de una lesión cavitada rodeada de vidrio esmerilado, ubicada en lóbulo superior derecho en tomografía de tórax. Se ofreció tratamiento antibiótico ante la sospecha clínica de sobreinfección. Sin embargo, se atribuyó la alteración pseudoquística pulmonar al antecedente traumático. En ocasiones las cavitaciones pulmonares postrauma no son identificadas en la atención inicial, por ende, es fundamental la evaluación clínica e imagenológica subsecuente.

Traumatic pneumatocele, or traumatic pulmonary pseudocyst, is a rare complication of blunt chest trauma, characterized by multiple or unique cavitary lesions, with well-defined fibrous walls without epithelial lining. It represents a diagnostic challenge due to the higher prevalence of other etiologies of lung cavities, nonspecific clinical features and the under-reported nature of this pathology. We present the case of a 21-year-old male with fever and chest pain after a blunt chest trauma in a motorcycle accident, with identification of a cavity in the right upper lobe, surrounded by ground glass opacities. Antibiotic therapy was administered after clinical suspicion of superinfection, however, the cavitary lesion was attributed to the trauma. Occasionally, traumatic pulmonary pseudocysts are not identified during initial assessment, therefore, clinical and imagenologic follow-up is essential.

Assuntos

RESUMO

The impact of Haemonchus contortus infections on nitrogen retention (NR) of hair sheep lambs is unknown. This study estimated the feed intake, digestibility, NR, haematocrit (HT), and their relationship with the gradient of H. contortus infection in hair sheep lambs. Twenty-four hair sheep lambs, 3-4 months old, reared parasite-free were used (live weight (LW) 16.7 ± 1.7 kg). Six lambs were kept parasite-free, nine lambs received a dose of 300 H. contortus infective larvae (L3)/kg LW, and the remaining nine lambs received 500 H. contortus L3/kg LW. Infection doses ranged from 3870 to 9,500 L3. Lambs were individually fed for an average daily gain (ADG) of 100 g. On days 1 (P < 0.01) and 7 (P < 0.001) post-infection (PI), the L3 doses were positively associated with HT, possibly due to platelet recruitment. On week 1 PI, the infection (L3) reduced the crude protein (CP) intake (g/kg metabolic LW) (P < 0.05). A reduction of 1% HT corresponded to 1200 eggs per gram of faeces (EPG) for day 21 PI (P < 0.05), 2300 EPG for day 28 PI (P < 0.001), 2400 EPG for day 35 (P < 0.001), and 1300 EPG for day 41 PI (P < 0.001). However, the HT levels were never lower than 21 %. A lower CP digestibility was associated with EPG only on week 5 PI (P < 0.05). There was no significant association between EPG, Total egg in faeces, or worm burden (WB) with intake, dry matter digestibility (DMD), ADG or NR. The NR of lambs was positive along the different weeks of study irrespective of infection level. The WB was negatively associated only with HT on day 41 PI (P < 0.001), where a 1 % HT reduction was estimated for every 257 worms hosted. In conclusion, no relationship was found between H. contortus infection and DMD, ADG or NR in hair sheep lambs. The cost of H. contortus infection resulted only from the HT reduction and depended on the gradient and stage of the infection.

Assuntos

RESUMO

O rebanho Girolando tem crescido substancialmente nas últimas décadas no Brasil, tornando a raça uma das mais selecionadas e visadas para a exploração de leite entre os criadores. No entanto, é sabido a importância do manejo das fêmeas para evitar perdas durante a gestação, sendo elevado os abortos e as distocias no periparto, por desconhecimento da previsão de partos. Mas para estabelecer uma tabela de previsão de partos é necessário conhecer o período de gestação de raça explorada. Neste contexto, este estudo envolveu observações de três décadas (1990 a 2019) de avaliação dos efeitos de alguns fatores (ano de parto, sexo da cria, grupo sanguíneo materno, raça paterna e ordem de parto) sobre os períodos de gestação (PG) do rebanho Girolando do Centro Estadual de Pesquisa em Agricultura Orgânica (CEPAO), da Empresa de Pesquisa Agropecuária do Estado do Rio de Janeiro (Pesagro-Rio). Para isso, foram utilizados os dados dos registros do rebanho dos sistemas de fichários e software Gera leite® , relativos aos PG (dia) de vacas Girolando, segundo as variáveis (1) ano, (2) sexo, (3) grupo sanguíneo materno, (4) raça paterno e (5) ordem de parto, tabulados e submetidos a análises descritivas, a anova one-way e teste Bonferroni no software Bioestat. Os métodos reprodutivos utilizados foram as inseminações, realizadas com a observação do estro, seguindo o sistema tradicional de Trimberg e, na última década, também a inseminação artificial em tempo fixo (IATF), com a utilização de protocolos hormonais para sincronização da ovulação. Os resultados médios, da avaliação de 2.104 partos não mostraram diferenças significativas (p>0,05), nos efeitos dos fatores analisados sobre os períodos de gestação. Assim, a média geral de 283,2±6,5 dias, pode ser considerada como uma estimativa dos partos esperados para o rebanho Girolando da Pesagro, a fim de proporcionar manejo e assistência adequados durante o parto, evitando distocias e perdas de mortalidade no periparto.

The Girolando herd has grown substantially in recent decades in Brazil, making the breed one of the most selected and targeted for milk exploration among breeders. However, it is known the importance of handling females to avoid losses during pregnancy, with abortions and dystocia in the peri-parturition, being high due to the lack of birth prediction. However, to establish a birth prediction table, it is necessary to know the gestation period of the exploited race. In this context, this study involved observations from three decades (1990 to 2019) to assess the effects of some factors (year of birth, sex of offspring, maternal blood group, paternal race and birth order), on gestation periods (PG) of the Girolando herd of the Centro Estadual de Pesquisa Agricultura Orgânica (CEPAO) of Pesagro-Rio. It is located in the municipality of Seropédica, RJ, in the Baixada Fluminense region, where in general the climate presents high temperatures (maximum ± 30oC) and relative air humidity (maximum 0.05), in the effects of the analyzed factors, on the gestation periods. Thus, the general average of 283.2±6.5 days can be considered as an estimate of expected deliveries for the Pesagro Girolando herd, in order to provide adequate management and assistance during childbirth, avoid dystocias and mortality losses in the peripartum.

Assuntos

RESUMO

O rebanho Girolando tem crescido substancialmente nas últimas décadas no Brasil, tornando a raça uma das mais selecionadas e visadas para a exploração de leite entre os criadores. No entanto, é sabido a importância do manejo das fêmeas para evitar perdas durante a gestação, sendo elevado os abortos e as distocias no periparto, por desconhecimento da previsão de partos. Mas para estabelecer uma tabela de previsão de partos é necessário conhecer o período de gestação de raça explorada. Neste contexto, este estudo envolveu observações de três décadas (1990 a 2019) de avaliação dos efeitos de alguns fatores (ano de parto, sexo da cria, grupo sanguíneo materno, raça paterna e ordem de parto) sobre os períodos de gestação (PG) do rebanho Girolando do Centro Estadual de Pesquisa em Agricultura Orgânica (CEPAO), da Empresa de Pesquisa Agropecuária do Estado do Rio de Janeiro (Pesagro-Rio). Para isso, foram utilizados os dados dos registros do rebanho dos sistemas de fichários e software Gera leite® , relativos aos PG (dia) de vacas Girolando, segundo as variáveis (1) ano, (2) sexo, (3) grupo sanguíneo materno, (4) raça paterno e (5) ordem de parto, tabulados e submetidos a análises descritivas, a anova one-way e teste Bonferroni no software Bioestat. Os métodos reprodutivos utilizados foram as inseminações, realizadas com a observação do estro, seguindo o sistema tradicional de Trimberg e, na última década, também a inseminação artificial em tempo fixo (IATF), com a utilização de protocolos hormonais para sincronização da ovulação. Os resultados médios, da avaliação de 2.104 partos não mostraram diferenças significativas (p>0,05), nos efeitos dos fatores analisados sobre os períodos de gestação. Assim, a média geral de 283,2±6,5 dias, pode ser considerada como uma estimativa dos partos esperados para o rebanho Girolando da Pesagro, a fim de proporcionar manejo e assistência adequados durante o parto, evitando distocias e perdas de mortalidade no periparto.(AU)

The Girolando herd has grown substantially in recent decades in Brazil, making the breed one of the most selected and targeted for milk exploration among breeders. However, it is known the importance of handling females to avoid losses during pregnancy, with abortions and dystocia in the peri-parturition, being high due to the lack of birth prediction. However, to establish a birth prediction table, it is necessary to know the gestation period of the exploited race. In this context, this study involved observations from three decades (1990 to 2019) to assess the effects of some factors (year of birth, sex of offspring, maternal blood group, paternal race and birth order), on gestation periods (PG) of the Girolando herd of the Centro Estadual de Pesquisa Agricultura Orgânica (CEPAO) of Pesagro-Rio. It is located in the municipality of Seropédica, RJ, in the Baixada Fluminense region, where in general the climate presents high temperatures (maximum ± 30oC) and relative air humidity (maximum < 60%). For this, data from the herd records of the binder systems and Gera leite® software were used, related to the PG (day) of Girolando cows, according to (1) year, (2) sex, (3) maternal blood group, (4) paternal race and (5) birth order were tabulated and submitted to descriptive analyzes, the one-way anova and Bonferroni test in the Bioestat software. The reproductive methods used were inseminations, performed with the observation of estrus, following the traditional Trimberg system and, in the last decade, also artificial insemination in fixed time (TAI), with the use of hormonal protocols for synchronization of ovulation). The results of the evaluation did not show significant differences (p>0.05), in the effects of the analyzed factors, on the gestation periods. Thus, the general average of 283.2±6.5 days can be considered as an estimate of expected deliveries for the Pesagro Girolando herd, in order to provide adequate management and assistance during childbirth, avoid dystocias and mortality losses in the peripartum.(AU)

Assuntos

RESUMO

A retrospective and cross-sectional study of canine tumors was performed in the capital of State of Mexico from 2002-2016. Since then, 393 tumors were remitted. Descriptive epidemiology was made from all data: breed, age, sex, and tumor features. Then the risk association between cutaneous and non-cutaneous tumors with variables such as sex, breed, and age were analyzed through an exact Fisher test and Odds ratio. In addition, some characteristics of the canine population were studied under a survey. Of all tumors, skin tumors were the most frequent (59.0%). The group of tumors related to ultraviolet radiation was the most common (15.1%). The frequency of tumors in females was 53%, nevertheless, males had more risk to develop cutaneous tumors (OR=1.88, 1.24-2.84) (0.003). The Pure breeds were the most common (82.5%) and the most frequent age range was > 7 years (54.7%). The survey showed that males (53%) and the age range 1-7 years (62.1%) were the most frequent. Conclusions, age, breed, and sex were identified as the major risk factors for tumorigenesis. Likewise, skin tumors were associated with exposure to ultraviolet radiation, probably to the height of the locality (2667mamls).(AU)

Um estudo retrospectivo e transversal dos tumores caninos foi realizado na capital do Estado do México durante o período de 2002-2016. Desde esse período, 393 tumores foram remetidos. Epidemiologia descritiva foi feita com base em todos os dados: raça, idade, sexo e características do tumor. Em seguida, a associação de risco entre tumores cutâneos e não cutâneos com variáveis como sexo, raça e idade foi analisada por meio do teste exato de Fisher e odds ratio. Além disso, algumas características da população canina foram estudadas em uma pesquisa. De todos os tumores, os de pele foram os mais frequentes (59,0%). O grupo de tumores relacionados à radiação ultravioleta foi o mais comum (15,1%). A frequência de tumores no sexo feminino foi de 53%, no entanto os machos apresentaram maior risco de desenvolver tumores cutâneos (OR = 1,88; 1,24-2,84) (0,003). As raças puras foram as mais comuns (82,5%), e a faixa etária mais frequente foi >7 anos (54,7%). A pesquisa mostrou que os machos (53%) e a faixa etária de um a sete anos (62,1%) foram os mais frequentes. Conclusões: idade, raça e sexo foram identificados como os principais fatores de risco para a tumorigênese. Da mesma forma, os tumores cutâneos foram associados à exposição à radiação ultravioleta, provavelmente até a altura da localidade (2667m ANM).(AU)

Assuntos

RESUMO

A retrospective and cross-sectional study of canine tumors was performed in the capital of State of Mexico from 2002-2016. Since then, 393 tumors were remitted. Descriptive epidemiology was made from all data: breed, age, sex, and tumor features. Then the risk association between cutaneous and non-cutaneous tumors with variables such as sex, breed, and age were analyzed through an exact Fisher test and Odds ratio. In addition, some characteristics of the canine population were studied under a survey. Of all tumors, skin tumors were the most frequent (59.0%). The group of tumors related to ultraviolet radiation was the most common (15.1%). The frequency of tumors in females was 53%, nevertheless, males had more risk to develop cutaneous tumors (OR=1.88, 1.24-2.84) (0.003). The Pure breeds were the most common (82.5%) and the most frequent age range was > 7 years (54.7%). The survey showed that males (53%) and the age range 1-7 years (62.1%) were the most frequent. Conclusions, age, breed, and sex were identified as the major risk factors for tumorigenesis. Likewise, skin tumors were associated with exposure to ultraviolet radiation, probably to the height of the locality (2667mamls).(AU)

Um estudo retrospectivo e transversal dos tumores caninos foi realizado na capital do Estado do México durante o período de 2002-2016. Desde esse período, 393 tumores foram remetidos. Epidemiologia descritiva foi feita com base em todos os dados: raça, idade, sexo e características do tumor. Em seguida, a associação de risco entre tumores cutâneos e não cutâneos com variáveis como sexo, raça e idade foi analisada por meio do teste exato de Fisher e odds ratio. Além disso, algumas características da população canina foram estudadas em uma pesquisa. De todos os tumores, os de pele foram os mais frequentes (59,0%). O grupo de tumores relacionados à radiação ultravioleta foi o mais comum (15,1%). A frequência de tumores no sexo feminino foi de 53%, no entanto os machos apresentaram maior risco de desenvolver tumores cutâneos (OR = 1,88; 1,24-2,84) (0,003). As raças puras foram as mais comuns (82,5%), e a faixa etária mais frequente foi >7 anos (54,7%). A pesquisa mostrou que os machos (53%) e a faixa etária de um a sete anos (62,1%) foram os mais frequentes. Conclusões: idade, raça e sexo foram identificados como os principais fatores de risco para a tumorigênese. Da mesma forma, os tumores cutâneos foram associados à exposição à radiação ultravioleta, provavelmente até a altura da localidade (2667m ANM).(AU)

Assuntos

RESUMO

The present study compared the feeding behaviour of goats in the early morning (EM = 7:00-8:30 a.m.) and late morning (LM = 9:30-11:00 a.m.) in response to their natural gastrointestinal nematode (GIN) infection status. Twelve female adult goats (37 ± 7.7 kg live weight (LW); 5 ± 1 years) with browsing experience in the tropical deciduous forest were divided into two groups (n = 6): INF group, with natural GIN infection, and non-infected (NI) group, dewormed with moxidectin (0.4 mg/kg LW subcutaneous). Feeding behaviour (dry matter intake (DMI)) of two resource types (grasses vs. shrubs + herbs) was estimated by direct observation for 4 weeks on two grazing moments (EM vs. LM). Environmental temperature and relative humidity at pasture level were measured twice weekly. The GIN egg counts and goats' LW were measured on days 0, 14 and 28. Temperature (mean ± standard deviation) at EM (26.2 ± 1.5 °C) was lower than at LM (38.7 ± 1 °C; P < 0.01). Humidity was higher on the EM (85.1 ± 2.6%) compared to LM (60.4 ± 5.6%; P < 0.01). Irrespective of the infection status, goats consumed similar amounts of grass and shrubs + herbs during EM (P > 0.05). On the other hand, the experimental groups consumed more grass than shrubs + herbs during LM (P < 0.05). The latter suggested prophylactic behaviours strategies to (a) avoid GIN infective larvae, (b) balance the protein:energy ratio of the diet and (c) avoid saturation of detoxification pathways for the secondary compounds consumed from shrubs + herbs. The constant consumption of shrubs + herbs during the study may have reduced the GIN egg count of the INF group.

Assuntos

RESUMO

This is the first study to isolate, identify and characterize Streptococcus iniae as the causative disease agent in two tilapia (Oreochromis aureus) populations. The populations were geographically isolated, of distinct origins, and did not share water sources. Affected fish showed various external (e.g., exophthalmia and cachexia, among others) and internal (e.g., granulomatous septicaemia and interstitial nephritis, among others) signs. All internal organ samples produced pure cultures, two of which (one from each farm, termed S-1 and S-2) were subjected to biochemical, PCR and 16S rRNA sequencing (99.5% similarity) analyses, confirming S. iniae identification. The two isolates presented genetic homogeneity regardless of technique (i.e., RAPD, REP-PCR and ERIC-PCR analyses). Pathogenic potentials were assessed through intraperitoneal injection challenges in rainbow trout (Oncorhynchus mykiss) and zebrafish (Danio rerio). Rainbow trout mortalities were respectively 40% and 70% at 104 and 106  CFU per fish with the S-1 isolate, while 100% mortality rates were recorded in zebrafish at 102 and 104  CFU per fish with the S-2 isolate. The obtained data clearly indicate a relationship between intensified aquaculture activities in Mexico and new disease appearances. Future studies should establish clinical significances for the tilapia industry.

Assuntos

RESUMO

In dogs, the canine transmissible venereal tumor (CTVT) is the only neoplasm which is not produced by neoplastic transformation of normal cells; the tumor is transmitted from the affected dog to healthy dogs by implantation of one or various clones of cancer cells. Thus, the CTVT of dogs analyzed in various countries reveals similar genetic characteristics and consequently CTVT is considered to have a clonal origin. The CTVTs obtained from dogs in Korea showed the T963C mutation on TP53 gene; this mutation was thought to be a molecular alteration which participates in the origin of the ancestral clone, CTVT. Nonetheless, this supposed mutation has not been identified in other studies which were carried out for the purpose of clarifying the clonal origin of CTVT. Thus we have considered it important to identify the role of the T963C mutation of the TP53 gene in the clonal origin of CTVT in dogs. Consequently the region which includes the mutation of the TP53 gene in twenty samples of CTVT obtained from various canine breeds was PCR amplified and afterwards its sequence of nucleotides was determined. We conclude that this mutation did not participate in the clonal origin of the tumor, but was acquired at a later stage.

Assuntos