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Registros recuperados: 114 | |
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Abrunhosa,Fernando A.; Simith,Darlan J.B.; Palmeira,Carlos A.M.; Arruda,Danielle C.B.. |
Food supply is considered critical for a successful culturing of decapod larvae. However, some species may present yolk reserve sufficient to complete their larval development without external food supply (known as lecithotrophic larval development). In the present study, two experiments were carried out in order to verify whether the callianassid Lepidophthalmus siriboia have lecithotrophic behaviour or, if they need external food for their larval development: Experiment 1, larvae submitted to an initial feeding period and Experiment 2, larvae submitted to an initial starvation period. High survival rate was observed in both experiments, in which only 2 megalopae and 1 zoea III died. These results strongly suggest that larvae of L. siriboia are... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Behaviour; Callianassidae; Larval development; Lecithotrophy; Lepidophthalmus siriboia; Starvation. |
Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652008000400005 |
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Roll,V.F.B.; Levrino,G.A.M.; Briz,R.C.; Buil,T.. |
This study was carried out throughout a laying period to compare the behaviour and performance of two groups of commercial layers, 180 ISA Brown and 120 Hy line W98, housed at 17 weeks of age in furnished cages with a nest box, perches, dust-bath, and claw shortening device. Based on productive parameters, the model of furnished cages studied is suitable for both, Isa Brown and Hy line hens. The study suggested that strain has a significant effect on feather condition and on some behavioural displays, particularly those related to the use of a dust-bath. |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hen; Behaviour; Dust-bath; Feather cover; Furnished cage. |
Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352008000300033 |
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Souza,L.P.; Fries,H.C.C.; Heim,G.; Faccin,J.E.; Hernig,L.F.; Marimon,B.T.; Bernardi,M.L.; Bortolozzo,F.P.; Wentz,I.. |
The aim of the study was to evaluate the behaviour, pre-weaning survival rate and growth performance of low birth weight (BW) piglets cross-fostered with piglets of higher weights. Piglets were transferred to 60 foster sows, and divided in three groups (G; n=20): G1- 12 low BW piglets (0.80 - 1.25kg); G2- six low BW piglets and six intermediate BW piglets (1.40 - 1.60kg), and G3- six low BW piglets and six high BW piglets (>1.70kg). For the analysis, groups G2 and G3 were subdivided in LG2 (six G2 light piglets); IG2 (six G2 intermediate piglets), LG3 (six G3 light piglets), and HG3 (six G3 heavy piglets). Behavioural observations were carried out on days 1, 2, 4 and 6 (visual direct observation) and on days 3 and 5 (video recording) after birth. The... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Piglet; Cross-fostering; Behaviour; Birth weight. |
Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352014000200027 |
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Brunow,Guilherme S.; Souza,Og de; Miramontes,Octavio. |
Studies were performed to evaluate the suitability of a commercial gouache as an external marker for termite workers in lab assays. Dyed and non-dyed termites presented similar survival for the first 300 minutes since the experiment has began, and differed after this time. Mortality did not differ for termites dyed in two different colours from the same brand of gouache. It was concluded that commercial gouache could be a suitable marker for Cornitermes cumulans (Isoptera: Termitidae) termites, provided following restrictions were applied (i) tested hypotheses did not rely on times to death greater than 300 min., or (ii) experiments included "sham-dyed" termites (i. e., a "control" group with "dyed" individuals, rather than the tradicional control group... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biological dyes; Behaviour; Lab assays; Isoptera. |
Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132005000500010 |
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Ventura,Maurício Ursi; Panizzi,Antônio Ricardo. |
The external morphology of the sensilla, including pores and permeable points on the cuticle of the antennae of adults of Neomegalotomus parvus (West.) (Heteroptera: Alydidae) was investigated with regard to their olfactory function. Behavioural evidence of olfaction, the importance of the different antennal segments in locating the host under still-air, and the responses of the insects to plants' scents and to pheromones in wind assays were also studied. With the scanning electronic microscope mechanoreceptor sensilla were found on the four segments of the antennae of N. parvus. The density of the sensilla was greater on the 4th segment. On the apical segment, sensilla with olfactory morphological traits were observed. Bugs with intact antennae located... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Sensilla; Host plant; Behaviour; Antenna. |
Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132005000500012 |
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Rocha,Luciane da; Redaelli,Luiza; Mendonça Jr.,Milton de S.. |
The oviposition behaviour of Gryon gallardoi (Brèthes, 1914) on eggs of Spartocera dentiventris Mendonça Jr. (Berg, 1884) of different ages (2, 3, 4, 5, 6, 7, 8 and 12 days) was investigated. Groups of 12 eggs of each age were exposed to single females of G. gallardoi, and the oviposition behaviour was recorded under a stereomicroscope for two hours. Ten replicates were used for each age. In order to identify the moment the parasitoid egg was released inside the host, 1-day old eggs of S. dentiventris were exposed to G. gallardoi females, and the oviposition was interrupted at intervals of 20, 40, 60, 80, 100, 120, 140 and 160s after ovipositor insertion had initiated. Five behavioural steps were recorded: drumming, ovipositor insertion, marking, walking... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Scelionidae; Parasitoid; Behaviour; Host selection. |
Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212006000300001 |
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EMBRAPA AGROPECUÁRIA OESTE.. |
Comportamento climatico durante o ciclo da cultura do trigo, em Dourados, MS, safra 1998; Avaliacao de cultivares de trigo em nivel estadual de experimentacao, no sul de Mato Grosso do Sul, safra 1998; Avaliacao de cultivares e linhagens de trigo em nivel final de experimentacao, no sul de Mato Grosso do Sul, safra 1998; Avaliacao de linhagens de trigo em nivel intermediario de experimentacao, no sul de Mato Grosso do Sul, safra 1998; Avaliacao de linhagens de trigo em nivel preliminar de experimentacao, no sul de Mato Grosso do Sul, safra 1998. |
Tipo: Folhetos |
Palavras-chave: Comportamento; Brasil; Mato Grosso do Sul; Behaviour; Cerrado; Pesquisa; Triticum Aestivum; Trigo; Brazil; Research; Wheat. |
Ano: 2000 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/243578 |
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TURCO, S. H. N.. |
Este experimento esta sendo conduzido, no campo experimental da caatinga, Embrapa Semi-Arido, localizado no municipio de Petrolina-PE, regiao semi-arida do Nordeste brasileiro. Estao sendo utilizados 22 animais, da raca Sindhi, sendo dez femeas e doze machos, com idade variando de 1 a 4 anos. O manejo para todas as categorias animais e o mesmo utilizado pelo sistema de producao Embrapa Semi-Arido, onde sao manejadas, todo o periodo do experimento, em pastagem nativa (caatinga), durante dois a quatro meses e em pastagem cultivada (capim buffel), durante o restante do ano. As informacoes basicas para este trabalho foram: a) variaveis fisiologicas: temperatura retal (TR); temperatura da pele (TP); frequencia respiratoria (FR); b) variaveis anatomicas:... |
Tipo: Folhetos |
Palavras-chave: Rca Sindhi; Comportamento fisiologico; Adaptacao; Desempenho; Semi-Arido; Bovine; Behaviour; Adaptation; Bovino; Performance; Breeds; Cattle; Physiology. |
Ano: 1998 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/133625 |
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SERENO, J. R. B.; MELO, M. I. V. de; HENRY, M. R. J. M.; CASSALI, G. D.. |
Por ser essencial no "trabalho de gado" e capaz de suportar marchas por periodos prolongados em areas alagadas. A EMBRAPA-CPAP iniciou, em 1988, trabalhos de conservacao e melhoramento do cavalo Pantaneiro, com pesquisas nas areas de reproducao, nutricao, sanidade, fisiologia de exercicio, genetica e selecao. Dentro da reproducao tem-se estudado a implantacao de estacao de monta, a avaliacao da proporcao macho:femea e comportamento sexual de machos e femeas a campo, entre outros aspectos tecnicos bem estabelecidos no manejo tradicional de outras regioes. Para a implantacao de tecnicas de manejo reprodutivo com sucesso e utilizacao mais racional de cada categoria animal, faz-se necessario considerar suas caracteristicas fisiologicas. Nos machos e de... |
Tipo: Folhetos |
Palavras-chave: Cavalo pantaneiro; Equinus; Behaviour; Horse; Comportamento Sexual; Reprodução Animal; Eqüino; Reproduction. |
Ano: 1996 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/790961 |
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BIANCHIN, I.; ALVES, R. G. de O.. |
O CNPGC realizou um experimento em quatro anos consecutivos (1991-1995). A cada ano, um rebanho de 120 vacas nelores, com bezerro ao pe, foi dividido em dois grupos, levando-se em consideracao as idades e os pesos das vacas e as idades dos bezerros. Durante a estacao de monta (novembro a fevereiro), foram mantidos tres touros, testados andrologicamente, em cada grupo. Em um dos grupos aplicaram-se inseticidas com intervalos que variavam com o principio ativo utilizado, em cada vaca e touro. Os dois grupos foram mantidos em piquetes separados, formados de Brachiaria decumbens, rotacionados a cada catorze dias, com uma taxa de lotacao de 1 UA/ha. As contagens da mosca nas vacas foram realizadas, tambem, a cada catorze dias. As vacas foram pesadas a cada dois... |
Tipo: Folhetos |
Palavras-chave: Bovino de corte; Nelore; Sanidade; Mosca-dos-chifres; Comportamento; Mato Grosso do Sul; Brasil; Health; Horn fly; Behaviour; Infestation; Brazilian savannas; Cerrado; Haematobia Irritans; Infestação; Nellore; Beef cattle; Brazil. |
Ano: 1997 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/316864 |
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Registros recuperados: 114 | |
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