Página 1 dos resultados de 146 itens digitais encontrados em 0.010 segundos

Definitions of honey colour grades; Définitions des nuances de couleur du miel

Phillips, E. F.
Fonte: INRA - Instituto Nacional de Investigação Agronômica da França Publicador: INRA - Instituto Nacional de Investigação Agronômica da França
Tipo: Journal Article-postprint
EN
Relevância na Pesquisa
26.5%

Bee paralysis, May-sickness, etc; Paralysie des abeilles, maladie de Mai, etc

Butler, C.G.
Fonte: INRA - Instituto Nacional de Investigação Agronômica da França Publicador: INRA - Instituto Nacional de Investigação Agronômica da França
Tipo: Journal Article-postprint
EN
Relevância na Pesquisa
26.5%

How long do honey-bees carry germinable pollen on them ?; Combien de temps les abeilles domestiques transportent-elles le pollen susceptible de germer sur elles ?

Kraai, A.
Fonte: INRA - Instituto Nacional de Investigação Agronômica da França Publicador: INRA - Instituto Nacional de Investigação Agronômica da França
Tipo: Journal Article-postprint
EN; ENGLISH
Relevância na Pesquisa
26.5%
Bees are used to pollinate plants in isolation cages. Usually the bees have previously flown about freely in the open air and may have gathered pollen from the same plant species. Now the question arises whether the bees can contaminate with this pollen plants with whick they are enclosed in an isolation cage. In this connection a number of experiments were undertaken to find out how long bees are loaded with germinable pollen. It appeared that the risk of contamination was practicalIy eliminated by keeping the bees in a house or empty isolation cage for 12 hours.

The pathogenicity for honey-bee larvae of microorganisms associated with european foulbrood

Bailey, L.
Fonte: INRA - Instituto Nacional de Investigação Agronômica da França Publicador: INRA - Instituto Nacional de Investigação Agronômica da França
Tipo: Journal Article-postprint
EN; ENGLISH
Relevância na Pesquisa
26.5%
Tests made on larvae in normal bee colonies with pure cultures of Streptococcus pluton (White), Streptococcus faecalis Andrews and Horder, and Bacillus alvei Cheshire and Cheyne, three bacterial species commonly associated with European foulbrood (EFB), showed that S. pluton was the natural prirnary etiological agent. These results, together with other recent work, indicate that S. pluton is the cause of EFB throughout the world. Of the other associated bacterial species, Bacterium eurydice White, which is the most commnon, and S. faecalis probably have supplementary pathogenic effects. Bacillus alvei and other less common bacilli are saprophytes of the dead larvae.

Septicaemia disease of the honeybee in Victoria; La septicémie chez les abeilles mellifères de Victoria

Langridge, D.F.
Fonte: INRA - Instituto Nacional de Investigação Agronômica da França Publicador: INRA - Instituto Nacional de Investigação Agronômica da França
Tipo: Journal Article-postprint
EN; ENGLISH
Relevância na Pesquisa
26.5%
An outbreak of a septicaemic condition of bees occurred in East Gippsland, Victoria, during the autumn, winter, and spring of 1958. The condition appears to conform generally with cases of septicaemia recorded in Canada, United States, and France. A causative organism has been isolated from septicaemic bees in Victoria which appears to fall into the type of the Pseudomonas species of Landerkin and Katznelson (1959). This organism has been proved pathogenic to bees when inoculated by dipping or injection.

Über das Vorkommen von Flagellaten im Rectum der Honigbiene; The occurrence of flagellates in the honeybee rectum

Fyg, W.
Fonte: INRA - Instituto Nacional de Investigação Agronômica da França Publicador: INRA - Instituto Nacional de Investigação Agronômica da França
Tipo: Journal Article-postprint
DE
Relevância na Pesquisa
26.5%

The occurence of chronic and acute bee paralysis viruses in bees outside Britain

Bailey, L.
Fonte: INRA - Instituto Nacional de Investigação Agronômica da França Publicador: INRA - Instituto Nacional de Investigação Agronômica da França
Tipo: Journal Article-postprint
EN; ENGLISH
Relevância na Pesquisa
26.5%
Honey bees (Apis mellifera Linnaeus) from Austria and Switzerland, suffering from Waldtrachtkrankheit, and from Italy and Norway suffering from Mal Noir contained as much chronic bee paralysis virus as bees suffering from “paralysis” in Britain and Malta. These diseases appear to be etiologically the same, therefore, and the variable and unreliable signs sometimes exhibited are perhaps caused by factors secondary to infection by the virus. Apparently healthy bees from Canada and Italy were infected with the virus of acute paralysis, as they are in Britain.

Comparative studies on embryology of the bees-apis, polistes, vespula and vespa, with special reference to the development of the silk gland

Ochiai, Seikichi
Fonte: INRA - Instituto Nacional de Investigação Agronômica da França Publicador: INRA - Instituto Nacional de Investigação Agronômica da França
Tipo: Journal Article-postprint
EN
Relevância na Pesquisa
26.5%

The amounts of hive-space needed by colonies of european Apis Mellifera

Simpson, J.
Fonte: INRA - Instituto Nacional de Investigação Agronômica da França Publicador: INRA - Instituto Nacional de Investigação Agronômica da França
Tipo: Journal Article-postprint
EN; ENGLISH
Relevância na Pesquisa
26.5%
The maximum sizes of 83 colonies varied greatly, the biggest colony being five times the size of the smallest. Many of the colonies that failed to grow big stopped growing quite early in the summer without losing their laying queens. This suggests that selective breeding might be more profitably directed towards uniformity than towards increase in colony size. Twenty-three colonies kept with more hive space than they could occupy had an average of about 1100 bees per British comb (1400 per Langstroth comb) on the combs they were occupying. From this, and several published estimates of colony sizes, it was deduced that an average colony needs about 34 British Il-comb boxes or 3 Langstroth lO-comb boxes to accommodate its adult bees.

Caste determination in bees and termites

Hinton, H.E.
Fonte: INRA - Instituto Nacional de Investigação Agronômica da França Publicador: INRA - Instituto Nacional de Investigação Agronômica da França
Tipo: Journal Article-postprint
EN
Relevância na Pesquisa
26.79%

Wild honeybees and disease

Bailey, L.
Fonte: INRA - Instituto Nacional de Investigação Agronômica da França Publicador: INRA - Instituto Nacional de Investigação Agronômica da França
Tipo: Journal Article-postprint
EN
Relevância na Pesquisa
26.79%

Les abeilles; Honeybees

Pérez, J.
Fonte: Librairie Hachette et Cie, Paris (FRA) Publicador: Librairie Hachette et Cie, Paris (FRA)
Tipo: Livro
FR; FRANçAIS
Relevância na Pesquisa
37.46%
TABLE DES MATIERES : Introduction : Qu'est-ce qu'une abeille? Organisation générale et fonctions, classification des abeilles. Apidae sociales : L'abeille domestique, physiologie de la ruche, extension géographique de l'abeille domestique, ses principales races, autres espèces du genre Apis, les bourdons, les Psithyres, les Mélipones. Apidae solitaires : Les Xylocopides, les Anthophorides, les Gastrilegides, les Osmies, les Anthidies, les Mégachiles, les Chalicodomes, les abeilles parasites, les Stélides, les Nomadines. Andrenides : Acutilingues, les Andrenes, les Halictes, les Sphécodes, les Dasypodes, les Panurgues, les Cilisses, Obtusilingues, les Collètes, les Prosopis, fleurs et abeilles.

The transmission of food between worker honeybees; La transmission de nourriture chez les ouvrières de l'abeille domestique

Free, J. B.
Fonte: INRA - Instituto Nacional de Investigação Agronômica da França Publicador: INRA - Instituto Nacional de Investigação Agronômica da França
Tipo: Journal Article-postprint
EN; ENGLISH
Relevância na Pesquisa
36.78%
1. A study has been made of the behaviour patterns associated with food transmission between worker honeybees. 2. There is a general tendency for food to pass from the older to the younger workers of a colony, although there is a considerable passage of food in the opposite direction. Younger bees generally receive food more frequently than they give it. 3. As worker bees grow older, the mean ages of the bees that feed them and to whom they give food also increase. 4. Although bees about to give food generally have more in their honeystomachs than those about to receive it the quantities of food contained in the honeystomachs of bees in these two groups overlap considerably. The transmission of ‘queen substance’, the occupation on which a bee is engaged within the hive, and her environment, all influence the result. 5. The correlation between a bee's behaviour in connection with food transmission and the amount of food in her honeystomach is more marked in the case of recently emerged, unconditioned bees, than in the case of bees taken at random from their colonies. 6. The amount of food that individual bees retain in their honeystomachs is influenced by their past experience.

Acetylcholine in the larval food, honey, and stored pollen of a stingless bee, Melipona quadrifasciata; Acétylcholine dans la nourriture des larves, le miel et dans le pollen emmagasiné chez une abeille mélipone , Melipona quadrifasciata

Welsh, John H.; Nogueira-Neto, Paulo; Jaeger, Celso P.; Ancona Lopez, Ana Amelia
Fonte: INRA - Instituto Nacional de Investigação Agronômica da França Publicador: INRA - Instituto Nacional de Investigação Agronômica da França
Tipo: Journal Article-postprint
EN; ENGLISH
Relevância na Pesquisa
36.79%
1) Using several methods, the larval food of Melipona quadrifasciata was found to contain amounts of acetylcholine estimated to range between O. 5 and 2.0 mg. equivalents of acetylcholine chloride per gram of larval food. Similar amounts have been reported for the larval food of the honey, bee, Apis mellifera. 2) The larval food of M. quadrifasciata was also found to contain a large amount of choline and an unidentified substance that was soluble in ethanol, gave a blue fluorescence, reacted with Dragendorf's reagent, and had a weak acetylcholine-like action. In one sample of larval food, a substance with the properties of glycine betaine was also found. 3) Samples of stored pollen were also found to contain acetylcholine, choline and the unidentified substance. 4) One sample of M. quadrifasciata honey contained 8 p,g. of acetylcholine per gram of honey. 5) In two lots of adult M. quadrifasciata, much more acetylcholine was found in abdomens than in heads or thoraces. 6) Anthers and pollen of several species of trees and plants have all been found to contain choline. Some also contain acetylcholine and glycine betaine, while all yielded the unidentified, bluefluorescing material. 7) It is suggested that the acetylcholine and other quaternary bases that are to be found in the larval food of M. quadrifasciata are derived from the pollens on which these bees feed; that they are conserved and concentrated in the digestive tract and transferred by the nurse bees to the larval food.

The gross and histological pathology of a hairless-black syndrome in the adult honey bee, Apis mellifera; Pathologie de la paralysie chronique chez l'abeille domestique adulte, Apis mellifera : examen clinique et histologique

Horvath, Roberta J.; Rothenbuhler, Walter C.
Fonte: INRA - Instituto Nacional de Investigação Agronômica da França Publicador: INRA - Instituto Nacional de Investigação Agronômica da França
Tipo: Journal Article-postprint
EN; ENGLISH
Relevância na Pesquisa
36.78%
Twenty diseased and 17 control bees were studied grossly and histologically with respect to pathological manifestations of an adult bee disease (tentatively called hairless-black syndrome), which has not been clearly distinguished in the literature from several other diseases of adult bees. In a diseased bee as compared with a control, the abdomen was abnormally distended by an accumulation of unusually aqueous feces; the midgut was often white and translucent instead of brown; the lumen of the small intestinal portion of the hindgut contained an increased amount of basophilic material, probably intestinal flora; the wall of the small intestine had large lesions and necrotic appearing areas in about half of the cases; the cytoplasm of the small intestinal epithelial cells consistently contained small, spherical, basophilic granules; and finally the neuropile of most thoracic and abdominal ganglia were surrounded by extremely small basophilic granules. It is concluded that hairless-black syndrome is different from both chronic and acute bee paralysis, but may be the same as “Mal Nero” in Italy and is probably the same disease as that described from Great Britain by Morison under the name “bee paralysis”. ☆This paper is a portion of a thesis submitted by the senior author and accepted by The Ohio State University in partial fulfillment of the requirements for the degree Master of Science.

The gross and histological pathology of a hairless-black syndrome in the adult honey bee, Apis mellifera; Pathologie de la paralysie chronique chez l'abeille domestique adulte, Apis mellifera : examen clinique et histologique

Horvath, Roberta J.; Rothenbuhler, Walter C.
Fonte: INRA - Instituto Nacional de Investigação Agronômica da França Publicador: INRA - Instituto Nacional de Investigação Agronômica da França
Tipo: Journal Article-postprint
EN; ENGLISH
Relevância na Pesquisa
36.78%
Twenty diseased and 17 control bees were studied grossly and histologically with respect to pathological manifestations of an adult bee disease (tentatively called hairless-black syndrome), which has not been clearly distinguished in the literature from several other diseases of adult bees. In a diseased bee as compared with a control, the abdomen was abnormally distended by an accumulation of unusually aqueous feces; the midgut was often white and translucent instead of brown; the lumen of the small intestinal portion of the hindgut contained an increased amount of basophilic material, probably intestinal flora; the wall of the small intestine had large lesions and necrotic appearing areas in about half of the cases; the cytoplasm of the small intestinal epithelial cells consistently contained small, spherical, basophilic granules; and finally the neuropile of most thoracic and abdominal ganglia were surrounded by extremely small basophilic granules. It is concluded that hairless-black syndrome is different from both chronic and acute bee paralysis, but may be the same as “Mal Nero” in Italy and is probably the same disease as that described from Great Britain by Morison under the name “bee paralysis”. ☆This paper is a portion of a thesis submitted by the senior author and accepted by The Ohio State University in partial fulfillment of the requirements for the degree Master of Science.

Paralysis of the Honey Bee, Apis mellifera Linnaeus; La paralysie de l'abeille domestique, Apis mellifera Linnaeus

Bailey, L.
Fonte: INRA - Instituto Nacional de Investigação Agronômica da França Publicador: INRA - Instituto Nacional de Investigação Agronômica da França
Tipo: Journal Article-postprint
EN; ENGLISH
Relevância na Pesquisa
36.78%
Chronic bee paralysis virus (CBPV) was differentiated from acute bee paralysis virus (ABPV) by the symptoms it caused when injected into normal bees and by histological and serological means. It was isolated from naturally paralyzed bees from various parts of Britain and from Hong Kong, and, in one instance, from normal bees. Overt disease disappeared when the queens of naturally diseased colonies were replaced with others from normal colonies. Normal bees in colonies or cages were resistant to chronic paralysis when sprayed or fed with CBPV. Bees injected with CBPV transmitted it in the food they passed to normal bees.

The occurrence and possible significance of the "shaking" of honeybee queens by the workers; Contexte et interprétation du comportement de la reine par les ouvrières de l'abeille domestique

Allen, M. Delia
Fonte: INRA - Instituto Nacional de Investigação Agronômica da França Publicador: INRA - Instituto Nacional de Investigação Agronômica da França
Tipo: Journal Article-postprint
EN; ENGLISH
Relevância na Pesquisa
36.78%
1. The phenomenon of "shaking" in honeybee colonies is described, and is here considered in relation to the queen of the colony. 2. The queen was rarely shaken in the spring but once swarm preparations had commenced the frequency of shaking rose rapidly, reaching a peak at about the time the swarm left. A newlymated young queen was shaken to some extent just after she first commenced laying, but within a few days the frequency had fallen markedly, and finally no shaking was observed. Since the queens were shaken only at times when they were likely to fly out of the hive it is concluded that there is a connection between the two events. Hammann (1957) gives results on unmated queens which also support this assumption, for these queens were shaken with increasing frequency before each mating flight. 3. The ages of the queen's shakers ranged from 3 to 61 days but the greatest numbers occurred in approximately the fourth week of adult life.

Virus diseases of the honey bee : an old problem; a new challenge; Les maladies virales de l'abeille domestique : un vieux problème ; un nouveau défi

Gochnauer, T. A.
Fonte: INRA - Instituto Nacional de Investigação Agronômica da França Publicador: INRA - Instituto Nacional de Investigação Agronômica da França
Tipo: Journal Article-postprint
EN
Relevância na Pesquisa
36.78%

Analyse de différents facteurs conditionnant les échanges alimentaires dans une colonie d'abeilles Apis mellifica L. au moyen d'un radioisotope; A radioistope to analyse the various factors conditioning food exchanges in a colony of honeybees Apis mellifica L.

Pershad, Shobba B.
Fonte: INRA - Instituto Nacional de Investigação Agronômica da França Publicador: INRA - Instituto Nacional de Investigação Agronômica da França
Tipo: Thesis or Academic Theses
FR; FRANçAIS ; ENGLISH
Relevância na Pesquisa
36.79%
TABLE DES MATIERES : Matériel et méthode. L'influence de l'âge sur les échanges de nourriture entre les ouvrières. L'influence de la durée et de la température sur les échange alimentaires. L'influence du nombre des abeilles présentes dans un groupe sur la répartition de la nourriture. Les échanges de nourriture entre des ouvrières appartenant à des colonies différentes. Transit intestinal et localisation du phosphore 32 dans le corps d'une abeille. Echanges de nourriture entre les ouvrières et les reines vierges et fécondes. Conclusions. /// CONTENTS: Material and method. Influence of age on food exchanges between workers. Influence of duration and temperature on food exchanges. Influence of the number of bees within a group on food dispaching. Food exchanges between workers belonging to different colonies. Intestinal transit and localisation of phosphore 32 in a bee body. Food exchanges between workers and virgin or fecund queens. Conclusions.; Thèse de Doctorat