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Registros recuperados: 17 | |
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Galván Pallach, Fernando. |
Esta investigación consistió en formar híbridos entre diferentes cepas de Lentinula edodes que presentaran equivalentes o mejores resultados y características que sus cepas progenitoras, Se evaluaron 16 cepas de Lentinula edodes. Para después realizar cruzas DI-MON entre las cepas de Lentinula edodes y los monospóricos de la cepa CP-7, y cruzas MON-MON entre los monospóricos de la cepa CP-7 y CP-188. Para el crecimiento micelial en masters, los híbridos DI-MON [97] X [7]32, [189] X [7]11 y [95] X [7]11, fueron los más precoces. Para el crecimiento micelial en bolsas, las cepas CP-172, CP-174, CP-188*, CP-97, CP-189, CP-7*, CP-163 y el híbrido MON-MON [7]32 X [188]29, fueron los mas precoces. Para la formación de costra café, el híbrido MON-MON [7]32 X... |
Tipo: Tesis |
Palavras-chave: Lentinula edodes; Cepa; Híbrido; Crecimiento micelial; Fructificación; Maestría; EDAR; Estrategías para el Desarrollo Agrícola Regional; Strain; Hybrid; Mycelial growth; Fruiting. |
Ano: 2008 |
URL: http://hdl.handle.net/10521/1452 |
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Pérez Ramírez, Jacqueline. |
En esta investigación, se evaluó el efecto de las diluciones del agua de coco y la adición de biotina sobre el crecimiento de Saccharomyces cerevisiae. En este sentido, la dilución 1:1 adicionada con biotina (µ= 0.21 h-1) y biomasa (3.32 g/L) fue suficiente para dar los requerimientos nutricionales a la cepa estudiada, en comparación con el agua de coco 100% (µ= 0.13 h-1) y biomasa (3.28 g/L) y un medio cultivo sintético (µ= 0.12 h-1) con biomasa de 2.86 g/L. Los nutrientes disponibles en diluciones 1:2 (µ= 0.18 h-1) y biomasa (2.25 g/L), podrían ser considerables para estudios posteriores; no así, las diluciones 1:5 y 1:10 que parecen inadecuadas para el óptimo crecimiento de S. cerevisiae. Se observó el efecto positivo de la biotina sobre el crecimiento... |
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Palavras-chave: Cepa; Medio de cultivo; Biomasa; Strain; Culture medium; Biomass production; Maestría Tecnológica; Agroindustria. |
Ano: 2011 |
URL: http://hdl.handle.net/10521/643 |
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Lamarche, G; Proust, Jn; Nodder, Sd. |
The newly mapped Kapiti-Manawatu Fault System (KMFS) in southern North Island, New Zealand, accommodated similar to 3.5 km of basement throw over the last 3 Myr. Along-strike throw profiles are generated using seven stratigraphic markers, interpreted from seismic reflection profiles acquired < 3 km apart. The profiles are symmetrical about their point of maximum displacement, and cumulative profiles suggest that the reverse fault system behaves coherently. The KMFS originates from the reactivation of extensional structures, with fault lengths remaining constant over time. Contractional deformation started at circa 1750 +/- 400 ka. Maximum dip-slip rates along individual faults are 1.77 +/- 0.53 and 0.74 +/- 0.22 mm yr(-1) for the 0 - 120 and 120 - 1350... |
Tipo: Text |
Palavras-chave: Slip rate; Fault displacement; Seismic reflection; Reverse fault; Strain; Fault interaction. |
Ano: 2005 |
URL: https://archimer.ifremer.fr/doc/00248/35902/34425.pdf |
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Saldamando,Clara I; Vélez-Arango,Ana M. |
Spodoptera frugiperda (Smith) is a polifagous insect of major economic impact in the western hemisphere and exhibits two strains (i.e., corn and rice) that are morphologically identical but differ in ecology, genetics and physiology. In this work we identified these strains and their respective hybrids by using a PCR-RFLP of the COI gene and PCR of the tandem region FR. Moreover, we performed a population structure analysis by using 253 larvae from Tolima, a region where S. frugiperda is a pest on corn, rice, sorghum and cotton. Corn strain was found on 42% in corn, 34% in cotton, 19% in sorghum and 0.04 % in rice and rice strain on 35% in corn, 0.06% in cotton, 0.06% in sorghum and 53% in rice, demonstrating that corn strain specificity is superior to... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Strain; Population genetics; Pest. |
Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2010000600012 |
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Mutibvu,T; Chimonyo,M; Halimani,TE. |
ABSTRACT Free-range chicken production has significantly increased in recent years and it often entails exposing birds to cyclic environmental conditions. The objective of the current study was to investigate the effect of bird strain and sex, and rearing system on the physiological responses of Potchefstroom Koekoek (PK), Ovambo (OV) and Naked Neck (NN) chickens reared in a hot environment. Body weight (BW), rectal temperature (RT), respiratory rate (RR) and heart rate (HR) were determined weekly for 4 weeks, in 3 slow-growing chicken strains under cyclic environmental conditions. A total of 288, 20-week old Potchefstroom Koekoek (PK), Ovambo (OV) and Naked Neck (NN) chickens were separated by sex and allocated to extensive and intensive rearing systems.... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Extensive; Intensive; Respiratory rate; Heart rate; Strain; Temperature. |
Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2017000400567 |
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Moreira,J; Mendes,AA; Garcia,RG; Garcia,EA; Roça,RO; Nääs,IA; Dalanezi,JA; Pelícia,K. |
This study evaluated the effects of strain, stocking density and dietary energy level on the feathering of broiler chickens. Four trials were carried out between September 2000 and April 2002. There were 10,685 broiler chicks from the strains Ross 308, Cobb 500, Hybro PG, Hubbard, MPK, and Isa Vedette. The bids were reared at stocking densities varying between 10 and 16 birds/m² and were given diets containing different metabolizable energy levels. Broiler feathering was evaluated either by atrributing scores from 1 to 10 to feather covering along the thigh and back (visual inspection), or by determining the percentage weight of the feathers at 28 and 42 days of age. Increasing rearing densities resulted in poorer feathering, mainly if 12 or 13 birds/m²... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Broiler chickens; Dietary energy; Feathering; Strain; Stocking density. |
Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2006000100002 |
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Krás,RV; Kessler,A de M; Ribeiro,AML; Henn,JD; Bockor,L; Sbrissia,AF. |
In this study, 360 male broilers, out of which 240 of a fast-growing strain (Cobb500), and 120 of a slow-growing strain (Label Rouge), were used to evaluate the effect of dietary fiber on digesta transit time and digestive metabolism during the period of 1 to 42 days of age. A completely randomized experimental design with a 3x2 factorial arrangement was applied, consisting of three groups of birds (slow-growing - SG; fast-growing fed ad libitum - FGAL; and fast-growing pair-fed with SG broilers - FGPF) and two iso-protein diets (a 3100 kcal ME/kg low-fiber diet - LFD- and a 2800 kcal ME/kg high-fiber diet - HFD- with 14% wheat bran and 4% oat hulls). HFD-fed birds presented lower ME retention (p < 0.001) and lower dry matter metabolizability (DMM) (p... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Age; Fiber; Metabolism; Pair-fed; Strain. |
Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2013000200003 |
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Zavarize,KC; Sartori,JR; Gonzales,E; Pezzato,AC. |
The present study aimed at evaluating the histo-morphological changes resulting from different fasting periods before the collection of tissue samples in different segments of the small intestine (duodenum, jejunum and ileum) of 7-d-old male chicks of a broiler and a layer strain. A completely randomized experimental design in in a 2x7 factorial arrangement, being two strains with different growth rates (Ross 308 and HyLine® W36) and seven fasting periods (0, 2, 4, 6, 8, 10 and 12 hours ), with six replicates, totaling 84 birds. The comparison of the morphometrics of the duodenum, jejunum and ileum of broiler and layer chicks demonstrated faster digestive tract development in broilers relative to layers. The fasting period caused morphological changes in... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fasting; Intestine; Morphology; Organs; Strain. |
Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2012000100004 |
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Gonzales,E; Leandro,NSM; Dalke,F; Brito,AB; Cruz,CP. |
Effects of yolk sac removal (deutectomy) upon performance of chicks from three divergent strains were tested to evaluate the importance of endogenous nutrition on the post-hatch phase. Chicks from three different strains (Hy-Line W98, Cobb 500, and JA57) were submitted to a surgery procedure after hatching. Half of them had the residual yolk removed, and the other constituted a sham-deutectomized group. After operation, chicks were designated to a 3 x 2 factorial design (3 strains x 2 presence/absence of yolk sac), in a total of six experimental groups and ten replications of two to four birds. During 14 experimental days all birds were fed ad libitum a 21% CP and 3050 kcal/kg EM mash diet. Data were analyzed by ANOVA, and Tukey's test (p<0.05).... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Body weight; Chick; Deutectomy; Strain; Yolk sac. |
Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2008000300006 |
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Neves,P.R.; Natali,M.R.M.; Ribeiro,R.P.; Vargas,L.; Maehana,K.R.; Marengoni,N.G.. |
This study was carried out to morphologically characterize and classify the stages of gonad development in different Nile tilapia strains (Oreochromis niloticus). Eighty-four and ninety-two ovaries from Bouaké and Chitralada strains, respectively, were evaluated at different ovarian developmental phases: initial (104 days of culture), intermediate (152 days of culture), and the final (279 days of culture). The ovaries were microscopically evaluated and submitted to histological processing and hematoxylin-eosin staining to determine their characteristics and be classified. No morphological differences in ovaries between strains were observed during the initial phase (stage A - immature). During the intermediate growing phase, higher gonad development was... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Oreochromis niloticus; Morphology; Ovarian development; Strain. |
Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352009000500021 |
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Figueiredo,V.C.; Muzzi,R.A.L.; Pereira,C.S.; Mantovani,M.M.; Muzzi,L.A.L.; Oberlender,G.; Júnior,A.C.C.L.; Arruda,P.M.. |
RESUMO O objetivo deste estudo prospectivo foi analisar a função do ventrículo esquerdo de cadelas que apresentavam sepse ou não e diagnosticar a depressão miocárdica de forma precoce, por meio do feature tracking imaging bidimensional (FTI-2D).Vinte e nove cadelas diagnosticadas com piometra, patologia usada como modelo experimental para sepse, foram avaliadas. Os animais foram submetidos ao exame ecocardiográfico convencional e ao FTI-2D e divididos em três grupos: grupo I (controle), grupo II (piometra sepse) e grupo III (piometra não sepse). Em relação aos parâmetros da ecocardiografia convencional, não houve diferença estatística entre os grupos avaliados. Quanto ao strain radial, os grupos II e III apresentaram função ventricular inferior no momento... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cão; Disfunção miocárdica; Ecocardiografia; Strain; Strain rate. |
Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352016000501228 |
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Saravanan,M.M.; Sivaraja,M.. |
ABSTRACT Construction industry is in need of lump sum quantities of materials which has increased both their demand and price. The use of large quantities of cement leads to increasing CO2 emission and as a consequence, the greenhouse effect. Consumption of wastes and byproducts from various sources in the manufacture of concrete has gained a great deal of importance in present days. Various researches are currently being conducted concerning the use of such products in concrete. RHA is a carbon neutral green product. Lots of ways are being thought of for disposing them by making commercial use of this. Rice husk ash is a good super-pozzolan which can be used to make special concrete mixes. The rice husk ash has been taken for this present study due to its... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Husk ash; Strain; Compressive; Split tensile; Flexural. |
Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132016000300608 |
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Rocha,Bruno Ribeiro; Narduche,Lorena; Oliveira,Clara Slade; Martins,Gabriel; Lilenbaum,Walter. |
ABSTRACT: For a long time, it has been stated that urine leptospiral shedding is intermittent, which was observed primarily by culturing. However, culturing presents serious limitations, mainly low sensitivity, and failure on detection of leptospires cannot be neglected. PCR presents several advantages, mainly higher sensitivity. The present study aimed to analyze the occurrence of intermittency on leptospiral shedding by PCR in naturally and experimentally infected animals. In this study two experiments were conducted, the first with 60 cows naturally infected from an endemic herd. The second one was conducted in three sheep experimentally infected, each one with a different strain of Leptospira (strains Copenhageni L1-130, Canicola LO-4 and Pomona... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cows; Intermittent; PCR; Sheep; Strain. |
Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000800453 |
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Freitas,Ednardo Rodrigues; Braz,Nádia de Melo; Watanabe,Pedro Henrique; Cruz,Carlos Eduardo Braga; Nascimento,Germano Augusto Jerônimo do; Bezerra,Roseane Madeira. |
Feeding management of laying hens has been focused on the direct influence of nutrient intake on weight gain, especially at growing phase. This study evaluates nutrient digestibility, performance, development of the digestive tract, body composition, and bone quality of two strains of laying hens fed with different levels of neutral detergent fiber (NDF) during the growing phase from the 7th to the 12th week of age. A total of 1,296 birds were distributed in a completely randomized design in a 2 x 3 factorial arrangement (two strains x three levels of NDF) with four replicates of 54 birds per treatment. Semi-heavy (Hy Line Brown) and light-strain (Lohman LSL) pullets were allotted to dietary treatments consisting of 14.50, 16.50, and 18.50% NDF. An... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Growth; Insoluble fiber; Neutral detergent fiber; Strain. |
Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542014000200010 |
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Registros recuperados: 17 | |
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