55 research outputs found
Avaliação preliminar do desenvolvimento ponderal de bovinos F1 (Valdostana X Nelore) e Nelore do nascimento ao desmame, no Estado do Acre.
Foram estudados peso ao nascer (PN), peso à desmama (PD, 205 dias) e ganho de peso do nascimento à desmama (GPND) do rebanho de 75 Nelore e 107 cruzados de Valdostana x Nelore. Os dados foram coletados de 2000 a 2001 da Fazenda São Luiz, Capixaba-Acre. No modelo estatístico foram incluídos os efeitos fixos da raça (R), condição corporal da vaca (CC), mês do parto (MP) e as co-variáveis diferença entre o peso da matriz ao parto e cobertura (DPPC) e a idade da vaca (IV) com efeitos linear e quadrático. Os dados foram submetidos a análises estatística usando o procedimento GLM do programa SAS. As médias e seus desvios-padrão para as respectivas raças foram: PN 34,69±0,90(N) e 32,85±0,91(V); PD 212,93±4,15(N); 215,75±4,47(V); GPND 0,87±0,029(N); 0,89±0,02(V). Foram significativos (P<0,05) os efeitos de raça sobre PN, de CC (P<0,01) sobre PN e (P<0,05)) sobre PD e a DPPC (P<0,01) sobre PD e GPND. As médias encontradas foram superiores aquelas relatadas por outros autores em regiões diferentes, estudando animais Nelore e seus cruzamentos com animais de raças européias. Preliminary study on growth traits of F1 (Faldostana x Nellore) and nellore cattle from birth to weaning in the state of Acre ABSTRACT: Birth weight (BW), weaning weight (WW, 205 days) and daily gain from birth to weaning (GBW) of 75 Nellore and 107 crossbred Valdostana x Nellore cattle were investigated. Data were collected from 2000 to 2001 at "Fazenda São Luis", Capixaba-Acre. The model included the fixed effects of breed of bulls (R), corporal condition of the cows (CC), month of birth (MB) and, as covariates, the difference between the weight of the cow at parturition and at insemination (DWPI) and the age of cow (AC) as linear and quadratic. Data were submitted to statistical analyses using the procedure GLM of SAS program. Least squares means and standard errors of Nellore and Valdostana x Nellore were respectively: BW 34.69±0.90 and 32.85±0.91; WW 212.93±4.15; 215.75±4.47; GBW 0.87±0.029; 0.89±0.02. Significant differences were found among: breeds (P<0.05) for BW; CC (P<0.01) for BW and (P<0.05) for WW; DWI (P<0.01) for BW and GBW. The values found in the present work were higher than those reported in other papers that investigated on Nellore cattle and its crosses with European breeds raised in different regions
Nutritional requirements of energy, protein and macrominerals for maintenance and weight gain of young crossbred Nellore × Holstein bulls on pasture.
The objective of this study was to estimate requirements of energy, protein and macrominerals of young Nellore/Holstein crossbreds bulls supplemented on pastures of Brachiaria decumbens Stapf. Thirty-five young bulls, at 8.53±0.18 months of age and with initial body weight of 230.6±6.1 kg were used. Ten animals were slaughtered as reference, in different weight range, and the other animals were slaughtered at the end of the experimental period. For estimate of net energy requirements for weight, a regression equation between log of retained energy (RE) and log of empty body weight gain (EBWG) was constructed. Net requirements of Ca, P, Mg, Na and K were determined by the equation Y' = a.b.Xb-1, in which a and b represent the intercept and the coefficient of equation of prediction of macrominerals in body content, respectively. Requirements of metabolizable energy for maintenance (MEm) were obtained from retained energy in function of metabolizable energy intake (MEI). The requirements of MEm of Nellore/Holstein crossbreds young bulls on pasture was 125 kcal/EBW0.75/day. The efficiency of ME utilization for maintenance (km) of grazing Nellore/Holstein crossbred young bulls was 0.58 and 0.24 for gain. The total metabolizable protein requirements for an animal with 400 kg and with average daily gain of 1.0 kg, were 638.36 g/day. The dietetic requirements of Ca and P for an animal with 400 kg BW were 0.49 and 0.21% of DM, respectively. Daily metabolizable energy requirement for maintenance of grazing Nellore/Holstein crossbred young bulls was 11.6% greater than the values found for cattle in feedlot in Brazil (112 kcal/kg EBW0.75)
pH e força de cisalhamento da carne de cordeiros alimentados com glicerina bruta na fase de terminação.
Objetivou-se neste trabalho avaliar o efeito da inclusão de glicerina bruta (GB) na dieta de cordeiros em terminação, sobre o pH, a temperatura (TºC), a força de cisalhamento (FC) e as perdas obtidas pelo descongelamento (PDESC) e cocção (PCOC) da carne de cordeiros da raça Santa Inês
The Crystal Ball Data Acquisition System
The data acquisition system for the Crystal Ball project at SLAC is described. A PDP-11/t55 using RSX-11M connected to the SLAC Triplex is the basis of the system. A "physics pipeline" allows physicists to write their own equipment-monitoring or physics tasks which require event sampling. As well, an interactive analysis package (MULTI) is in the pipeline. Histogram collection and display on the PDP are implemented using the Triplex histogramming package. Various interactive event displays are also implemented
Produção leiteira de búfalos.
O búfalo é um animal com aptidão para produção de carne e leite, além de ser utilizado como força de trabalho no campo. Em razão de sua elevada rusticidade e capacidade de adaptação em solos de baixa fertilidade e terrenos alagadiços, bem como sua capacidade de converter alimentos de baixa qualidade em proteína de qualidade, esses animais têm ocupado regiões que são consideradas inadequadas para a criação de bovinos.bitstream/item/217369/1/cpafro-18470.pd
What's wrong with the murals at the Mogao Grottoes : a near-infrared hyperspectral imaging method
Although a significant amount of work has been performed to preserve the ancient murals in the Mogao Grottoes by Dunhuang Cultural Research, non-contact methods need to be developed to effectively evaluate the degree of flaking of the murals. In this study, we propose to evaluate the flaking by automatically analyzing hyperspectral images that were scanned at the site. Murals with various degrees of flaking were scanned in the 126th cave using a near-infrared (NIR) hyperspectral camera with a spectral range of approximately 900 to 1700 nm. The regions of interest (ROIs) of the murals were manually labeled and grouped into four levels: normal, slight, moderate, and severe. The average spectral data from each ROI and its group label were used to train our classification model. To predict the degree of flaking, we adopted four algorithms: deep belief networks (DBNs), partial least squares regression (PLSR), principal component analysis with a support vector machine (PCA + SVM) and principal component analysis with an artificial neural network (PCA + ANN). The experimental results show the effectiveness of our method. In particular, better results are obtained using DBNs when the training data contain a significant amount of striping noise
Reproducibility Analysis Of The Stability And Treatment Of Vertebral Metastatic Lesions
Objectives: To investigate the reproducibility among spine surgeons in defining the treatment of vertebral metastatic lesions, taking into account the mechanical stability of injuries. Methods: Twenty cases of isolated vertebral metastatic lesions were presented to ten experts. Their opinion was then asked about the stability of the lesion, as well as their treatment option. Results: The interobserver Kappa coefficient obtained both for stability analysis as to the decision of the treatment was poor (0.334 and 0.248, respectively). Conclusions: Poor interobserver reproducibility was observed in deciding the treatment of vertebral metastatic lesions when considering the stability of the lesions.133232234American Cancer Society, (2007) Cancer Facts and Figures, , Atlanta: American Cancer SocietyNewman, C.B., Keshavarzi, S., Aryan, H.E., En bloc sacrectomy and reconstruction technique modification for pelvic fixation (2009) Surg Neurol, 72 (6), pp. 752-756Harrington, K.D., Current concepts review: Metastatic disease of the spine (1986) J Bone Joint Surg Am, 68 (7), pp. 1110-1115Gasbarrini, A., Cappuccio, M., Mirabile, L., Bandiera, S., Terzi, S., Barbanti Bròdano, G., Spinal metastases: Treatment evaluation algorithm (2004) Eur Rev Med Pharmacol Sci, 8 (6), pp. 265-274Bilsky, M., Smith, M., Surgical approach to epidural spinal cord compression (2006) Hematol Oncol Clin North Am, 20 (6), pp. 1307-1317Weber, M.H., Burch, S., Buckley, J., Schmidt, M.H., Fehlings, M.G., Vrionis, F.D., Instability and impending instability of the thoracolumbar spine in patients with spinal metastases: A systematic review (2011) Int J Oncol, 38 (1), pp. 5-12Tokuhashi, Y., Kawano, H., Ohsaka, S., Matsuzaki, H., Toriyama, S., A scoring system for preoperative evaluation of the prognosis of metastatic spine tumor (a preliminary report) (1989) Nihon Seikeigeka Gakkai Zasshi, 63 (5), pp. 482-489Tokuhashi, Y., Matsuzaki, H., Toriyama, S., Kawano, H., Ohsaka, S., Scoring system for the preoperative evaluation of metastatic spine tumor prognosis (1990) Spine (Phila Pa 1976), 15 (11), pp. 1110-1113Tomita, K., Kawahara, N., Baba, H., Tsuchiya, H., Fujita, T., Toribatake, Y., Total em bloc spondylectomy. A new surgical technique for primary malignant vertebral tumors (1997) Spine (Phila Pa 1976), 22 (3), pp. 324-333Tomita, K., Kawahara, N., Kobayashi, T., Yoshida, A., Murakami, H., Akamaru, T., Surgical strategy for spinal metastases (2001) Spine (Phila Pa 1976), 26 (3), pp. 298-306Fisher, C.G., DiPaola, C.P., Ryken, T.C., Bilsky, M.H., Shaffrey, C.I., Berven, S.H., A novel classification system for spinal instability in neoplastic disease: An evidence-based approach and expert consensus from the Spine Oncology Study Group (2010) Spine (Phila Pa 1976), 35 (22), pp. E1221-E1229Fourney, D.R., Frangou, E.M., Ryken, T.C., Dipaola, C.P., Shaffrey, C.I., Berven, S.H., Spinal instability neoplastic score: An analysis of reliability and validity from the spine oncology study group (2011) J Clin Oncol, 29 (22), pp. 3072-307
Implementation and performance of the event filter muon selection for the ATLAS experiment at LHC
International audienceThe ATLAS trigger system is composed of three levels: an initial hardware trigger level (LVL1) followed by two software-based stages (LVL2 trigger and event filter) included in the high level trigger (HLT) and implemented on processor farms. The LVL2 trigger starts from LVL1 information concerning pointers to restricted so-called regions of interest (ROI) and performs event selection by means of optimized algorithms. If the LVL2 is passed, the full event is built and sent to the event filter (EF) algorithms for further selection and classification. After that, events are finally collected and put into mass storage for subsequent physics analysis. Even if many differences arise in the requirements and in the interfaces between the two HLT stages, they have a coherent approach to event selection. Therefore, the design of a common core software framework has been implemented in order to allow the HLT architecture to be flexible to changes (background conditions, luminosity, description of the detector, etc.). Algorithms working in the event filter are designed to work not only in a general purpose or exclusive mode, but they have been implemented in such a way to process given trigger hypotheses produced at a previous stage in the HLT dataflow (seeding concept). This is done by acting in separate steps, so that decisions to go further in the process are taken at every new step. An overview of the HLT processing steps is given and the working principles of the EF offline algorithms for muon reconstruction and identification (MOORE and MuId) are discussed in deeper detail. The reconstruction performances of these algorithms in terms of efficiency, momentum resolution, rejection power and execution times on several samples of simulated single muon events are presented, also taking into account the high background environment that is expected for ATLAS
Cupuassu byproduct in supplements for buffalo cows: milk yield and calf performance.
The aim of this study was to evaluate milk yield and calf performances of Murrah buffalo cows supplemented with rations containing cupuassu byproduct in substitution of ground corn
Contagem de células somáticas do leite total de rebanhos mestiços leiteiros do estado do Acre - nota prévia.
As células somáticas encontradas no leite são parte da resposta inflamatória e são constituídas, em sua maioria, por leucócitos que se originam no organismo do animal e têm como principal função combater infecções bacterianas que se instalam na glândula mamária. Células epiteliais, originadas da glândula mamária, constituem de 2 a 20% das células somáticas. Dessa forma, a contagem de células somáticas (CCS) é um elemento adequado para se avaliar o estado de saúde da glândula mamária dos rebanhos
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