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Registros recuperados: 13 | |
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Sauveur, B.. |
Si on offre à une poule pondeuse une source de calcium alimentaire qu’elle puisse identifier (alimentation calcique séparée), elle consomme ce calcium de façon discontinue en relation avec la formation de la coquille de l’oeuf. Cette pratique réduit la mobilisation osseuse et accroît la solidité de la coquille dans la moitié des cas environ. L’effet est particulièrement net lorsque la température ambiante est élevée. Ceci permet également de réduire l’apport alimentaire de phosphore.Plus généralement, la quantité de coquille déposée sur l’oeuf apparaît comme inversement liée à la teneur en phosphore du plasma, à la fois à long terme et de façon instantanée. Il convient donc de limiter la teneur en phosphore assimilable de l’aliment à 0,28 % pour une... |
Tipo: Journal Article |
Palavras-chave: POULE PONDEUSE; COQUILLE; OVIPOSITION. |
Ano: 1992 |
URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PUB9300009608034845&uri=/notices/prodinra1/2008/03/ |
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Alaphilippe, A.; Elad, Y.; Rav David, D.; Derridj, S.; Gessler, C.. |
A number of studies have focused on the selection and use of new biocontrol agents, but the effects of the introduction of these microorganisms on non-target organisms, including the crop plants themselves, are not well known. Non-target effects of sprayed applications of a potential biocontrol agent of apple powdery mildew (Podosphaera leucotricha Ell. Et Ev.), on scab infections (Venturia inaequalis Cooke Winter), on codling moth [Cydia pomonella L. (Lepidoptera: Tortricidae)] oviposition and damage and apple (Malus x domestica) fruit quality are examined. This biocontrol agent, an epiphytic yeast isolate called Y16, affected neither conidia germination of V. inaequalis nor their penetration of the leaf tissue but suppressed the disease caused by this... |
Tipo: Journal Article |
Palavras-chave: AGENT PATHOGENE; PLANTE HOTE; MALUS; CHAMPIGNON; INSECTE NUISIBLE; MILDIOU; GERMINATION; CHAMPIGNON; ERYSIPHALES; ASCOMYCOTINA; DOTHIDEALES; LEPIDOPTERA; INSECTE CONIDIA GERMINATION; APPLE SCAB; CODLING MOTH; OVIPOSITION; FRUIT QUALITY. |
Ano: 2008 |
URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2010c26ddd99&uri=/notices/prodinra1/2010/09/ |
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Gabel, B.; Thiéry, D.. |
Avoidance of occupied ovisposition sites supposes that females perceive information related to their own progency. Fatty acids identified from egg extracts have been reevaluated using a different extraction method, and we have investigated the dose-dependent oviposition response of European grape vine moths (Lobesia botrana) to myristic acid, palmitic acid, palmitoleic acid, stearic acid, oleic acid, linoleic acid, methyl palmitate, methyl oleate, and ethyl palmitate; all except ethyl palmitate have been identified from eggs of L. botrana. A methylene dichloride extract of eggs from L. botrana revealed the presence of saturated free fatty acids (myristic, palmitic, and stearic) and unsaturated acids (palmitoleic, oleic, linoleic, and linolenic) in amounts... |
Tipo: Journal Article |
Palavras-chave: LOBESIA; LEPIDOPTERE; MARQUEUR CHIMIQUE; OVIPOSITION; OEUF BEHAVIOR; LOBESIA BOTRANA; OVIPOSITION; INSECT; TORTRICID; LEPIDOPTERA; FATTY ACIDS. |
Ano: 1996 |
URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PUB9600002472059163&uri=/notices/prodinra1/2010/11/ |
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Registros recuperados: 13 | |
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