A comparison of the growth performance between cattle reared in conventional systems and in feral condition

Feral and conventional growth performances were compared using Marismeña cattle as a model. Marismeña calves are commonly reared under feral conditions in one of the most important reserves of Europe (Doñana National Park, Spain). Data recording in these natural conditions faces compromises as animals are only handled once per year. This fact has to be saved to obtain efficient estimations for the biological growth curve of cattle reared under feral conditions. On the one hand, we assessed the inference of the theoretical influence of human management on cattle growth. On the other hand, we studied the fitness of the best growth curve, in both feral and conventional systems to use the physiological meaning of the parameters obtained from their study as selection criteria related to the adaptability of potential breeding males and females. Fitting of Brody's, von Bertalanffy, Verhulst, logistic, Gompertz and Richards’ models was tested as these models are the most representative ones for cattle growth. In general, Brody's and Richards’ models presented the best fitting values for the biological curve. According to the biological curve parameters, males and females presented asymptotic weights of 641.71 kg and 403.55 kg, respectively. As expected, the results of the commercial growth curve severely differed from those of the biological curve. The best fitting biological curve was not representative for cattle reared under commercial conditions. The logistic model was the best fitting one for feral females, Gompertz model for feral males, and Verhulst for intensive males and females, respectively. Seasonal oscillations in feeding may be responsible for the earlier achievement of the best performance in feral cattle (7 and 10 months for males and females, respectively), while such best performances were reached at 11 months in intensive calves, what becomes relevant for management and slaughtering decision-making. The study of the biological curve in Marismeña feral breed is very illustrative as this is the first time that feral cattle's growth is approached. Knowledge on the biological growth curve parameters could be used to interpret the strong relation between feral animals and their environment. This research could infer a model to quantify the effects of human management on livestock development, as feral resources offer unique opportunities to study domestic livestock without any human influence.info:eu-repo/semantics/publishedVersio

Deferral of assessment of pulmonary embolism

We evaluated a simplified algorithm for safely postponing diagnostic imaging for pulmonary embolism (PE). At the index visit, patients were identified as being at high or low risk of PE; the former received full dosage low molecular weight heparin while the latter were left untreated until performance of diagnostic imaging (max 72 hours). During this period, no thromboembolic events occurred in low-risk patients (0/211, 0.% [upper 95% CI 0.9%]); only one event occurred in those at high-risk (1/125, 0.8% [upper 95% CI, 1.2]). Our study demonstrates that diagnostic imaging for PE can be safely deferred for up to 3 days

Evolution of the use of “quality brands” in meat from small ruminant breeds (threatened with extinction) to foster animal conservation

A brief overview is presented of the main aspects involved in evolution of use of the term “quality branding” of meats from small ruminants, particularly those of endangered breeds, in support of their conservation. The assessment of IGP and DOP certifications, associated with product type, market preferences and volume of meats certified by associations of sheep and goat producers indicates that these “brands of quality” have not been successful in serving as mechanisms in support of conservation efforts of endangered breeds. To address this situation, a new proposal for quality assurance indicated by the branding “100% raza autóctona” (100% native breed) is currently being assessed and implemented in Spain. This branding involves interested parties at three levels (production, transformation, and commercialization), is compatible with DOP/IGP products, and seeks to stimulate the market for products derived from native breeds. It can be used to certify all products obtained from a breed recognized as native, including meat, milk, leather, fiber, as well as processed products

The impact of genetic groups (Alentejano and F1 Landrace x Large White pigs) and body weight (90, 120 and 160kg) on blood metabolites

Áreas de pesquisa: AgricultureThis research work was carried out with the goal of studying the impact of genetic groups-GG (Alentejano-AL, n = 30, and F1 Landrace*Large White-F1 pigs, n = 30) and body weight-BW (90, 120 and 160 kg) on plasma metabolites. Blood parameters were correlated with animal production traits, carcass measurements and meat quality. Individual records for feed conversion index (CI) and daily feed intake were recorded on a weekly basis, for a period of 15 weeks. Compared to the F1, AL pigs displayed (P <0.05) higher average levels of glucose, total cholesterol-TC, triglycerides-TG, HDL-cholesterol (HDL), LDL-cholesterol (LDL) and total protein (TP), by about 14.0, 21.0, 42.2, 18.2, 21.2 and 5.0%, respectively. AL pigs (120–160 kg) showed higher TG levels, when compared to the values at 90 kg (2.6 and 1.6 times higher). High TG levels occurred when animals exhibited high daily feed intake (0.450 and 1.810 kg, for AL and F1 pigs). In the AL high TG levels were correlated with high fat deposition, at 120 kg (r = 0.51). At 90 kg, however, high fat deposition was related to HDL (r = 0.59), a lipoprotein associated to cholesterol transport. A progressive increase in ALB was found in the F1, as expected, but AL pigs showed higher and similar ALB means at 90, 120 and 160 kg. As for meat color, AL pigs with high cholesterol were negatively associated to L*, while high TG levels were associated to low b*. Animals with high ALB produced more tender meats (low shear force). Pigs with higher levels of lipid metabolism showed Longissimus thoracis muscles with decreased luminosity and yellowness (meats of a less attractive appearance). However, these meats were tenderer.info:eu-repo/semantics/publishedVersio

ESCREVER SEM MEDO: COMO ESTIMULAR E DESENVOLVER A PRODUÇÃO DE TEXTOS NO ENSINO FUNDAMENTAL

A dificuldade que os alunos encontram em produzir textos tem seu in&iacute;cio nas s&eacute;ries inicias do Ensino Fundamental. Suas primeiras tentativas ao expressar suas id&eacute;ias atrav&eacute;s da escrita devem ser valorizadas e orientadas. Quando isso acontece, formam-se bons leitores que consequentemente ser&atilde;o bons produtores de texto. Quem l&ecirc; aumenta seu vocabul&aacute;rio facilitando a escrita. A motiva&ccedil;&atilde;o para escrever passa pela compreens&atilde;o sobre a fun&ccedil;&atilde;o da l&iacute;ngua. Se o aluno tem essa compreens&atilde;o sabe o porqu&ecirc; de escrever. Esse significado o impulsiona a querer registrar seu pensamentos e id&eacute;ias. Para que a escola promova essa compet&ecirc;ncia em seus alunos &eacute; preciso que os profissionais que trabalham com as s&eacute;ries inicias, tenham conhecimento da import&acirc;ncia de seu trabalho e busquem atualizar-se constantemente a fim de possibilitar aquisi&ccedil;&atilde;o t&atilde;o importante quanto &eacute; a escrita

Efeito agudo dos estrógenos conjugados sobre o volume da tireóide em mulheres na pós-menopausa

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Fatal Brazilian spotted fever in a healthy military man during field training in Rio de Janeiro city, southeastern Brazil

Brazilian spotted fever, a zoonotic disease transmitted by ticks, is caused by Rickettsia rickettsii. We report a fulminant case of this zoonosis in a healthy 46-year-old military man in the urban region of Rio de Janeiro city, in October, 2021. Ticks and capybaras (Amblyomma sculptum, Hydrochoerus hydrochaeris, respectively) were identified in the military fields, pointing to the participation of this large synanthropic rodent, recognized as an efficient amplifier host of Rickettsia rickettsii in Brazil. As the military population is considered a risk group for spotted fever, it is necessary to alert health professionals to the importance of the early detection of the disease and its adequate management, mainly in populations that are particularly at risk of exposure to ticks, in order to avoid fatal outcomes

Art déco e indústria: Brasil, décadas de 1930 e 1940

Este artigo analisa as características assumidas pela arquitetura de tendência art déco em construções ligadas à indústria - moradias, igrejas, escolas, clubes, fábricas etc. - erguidas no Brasil nas décadas de 1930 e 1940, investigando o repertório formal utilizado em diferentes tipologias. Faz uma análise mais detalhada das construções criadas pela Companhia Industrial Fiação de Tecidos Goyanna, em Pernambuco, no período entre 1937 e o final da década de 1940. Trata-se de um conjunto notável pela unidade formal, vinculada à linguagem art déco, e pelo emprego de soluções inovadoras em termos de forma e de programa.The aim of this article is to analyze the characteristics of Art Deco tendencies in buildings related to the industry - as houses, churches, schools, clubs, plants etc - in Brazil during the 1930s and 1940s. It studies the formal repertory used in different types of construction and develops a more detailed analysis of a complex of constructions by the firm Companhia Industrial Fiação de Tecidos Goyanna, in the state of Pernambuco, built during the period between 1937 and the end of 1940s. The presented group of constructions is notable for the formal coherence, associated with the Art Deco language, and for the use of innovative program and form solutions