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| Registros recuperados: 33 | |
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| Guillén Alvarado, Rosa Angélica. |
| En este trabajo consiste en realizar una predicción de precios del huevo en México con datos de 1960 a 2003 y posteriormente se obtuvo la predicción de precios hasta el 2007, mismo que se tomas los precios nominales del huevo y el índice nacional de precios al consumidor para calcular los precios reales y obtener la desestacionalización de los precios, posteriormente con el apoyo del programa de SAS, se establece un modelo econométrico con el que se calcula la tendencia de mejor ajuste. El modelo cuadrático tiene un buen ajuste dado por el coeficiente de determinación (R2 =0.9432) y sus parámetros de acuerdo con la razón de t son significativos al 99% de probabilidad. Tomando en consideración la tendencia estimada, el índice estacional, el índice cíclico... |
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Palavras-chave: Ciclos; Huevo; Tendencia; Predicción de precios; Cycles; Egg; Trends; Price forecast; Economía; Maestría. |
| Ano: 2012 |
URL: http://hdl.handle.net/10521/1706 |
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| Maurício,Giovanni N.; Bencke,Glayson Ariel; Repenning,Márcio; Machado,Diogenes Borges; Dias,Rafael A.; Bugoni,Leandro. |
| Information on the breeding biology of birds is essential for improving avian life-history theory and implementing sound management and conservation actions for these organisms. Comprehensive reviews of this kind of information are lacking for most Neotropical regions, including Rio Grande do Sul, the southernmost Brazilian state. Aiming to update the knowledge on the reproductive status of birds in Rio Grande do Sul, we reviewed breeding records of all potential breeding species recorded in the state using a set of predefined, restrictive criteria for accepting breeding evidences as effective. Data satisfying our criteria were available for 165 species in the literature. We also collected novel breeding information obtained in the state for an additional... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Nest; Egg; Nestling; Breeding biology; Breeding records. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212013000200012 |
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| Khmeleva, N; Goloubev, A. |
| This monograph is the first to state by a systematic research the rules which control the production of the organic losses in shape of eggs and exoskeletons during the life of Crustacea. The weight and the energy content of the material thrown out are the chief criteria selected to characterize the germinal production, relative to the egg-mass, and the exuvial production, relative to the organic fraction of the exoskeleton. The determination of these parameters, at the level of the organism or of the population, takes into account the systematic position of the animals, the duration of their intermolt periods, fecundity and other indices in relation to environmental factors. The loss of matter and energy with reproduction and molting(studied for different... |
| Tipo: Text |
Palavras-chave: Energy content; Weight; Organic losses; Egg; Ecosystem; Crustacea. |
| Ano: 1986 |
URL: http://archimer.ifremer.fr/doc/1986/rapport-1665.pdf |
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| Breuil, Gilles. |
| The sea bass, Dicentrarchus labrax, has been subjected to intensive aquaculture on the Mediterranean cost for ten years. Marine fish hatcheries are key factors in the aquaculture field, and face different pathologies, especially one of viral origin (nodavirus) that could challenge their feasibility. Consequently, we have tried to provide some data on larvae and spawning stocks. Firstly, we have studied the immunoglobulins, components of the specific humoral immunity, and their role as antibodies. On adult basses, these immunoglobulins are tetrameric molecules with high molecular weight (850 kD), made of heavy (H) - 80 kD and light (L) - 26 kD chains. In the eggs, simplest forms such as monomeric or dimeric are brought to the fore; they are located under... |
| Tipo: Text |
Palavras-chave: Egg; Cytometry; Immunity system; Larvae; Immunoglobulin; Nodavirus; Dicentrarchus labrax; Hatchery; Ontogenese; Cytometrie; Immunoglobuline; Nodavirus; Oeuf; Larve; Nurserie; Dicentrarchus labrax. |
| Ano: 1997 |
URL: http://archimer.ifremer.fr/doc/1997/these-1265.pdf |
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| Lemos,Luciana da Silva; Santos,Alessa Siqueira de Oliveira dos; Rodrigues,Ana Bárbara Freitas; Goulart,Maria Laudelina Vieira Seródio; Almeida,Luciano Grillo de; Silveira,Leonardo Serafim da. |
| A dog with multiple infection by D. renale in the abdominal cavity presented granular peritonitis with giant cells phagocytizing D. renale eggs. Hepatic and phrenic serositis associated to numerous eggs of the parasite immersed in fibrinous process were observed. Lungs presented D. renale eggs in the parenchyma, mononucleated cell infiltrates, edema, hemorrhage, congestion, atelectasia, emphysema, and thromboembolism. D. renale eggs were detected inside the center-lobular veins, auricular cavities, and superficial venous bed of the heart. These findings characterized an atypical dissemination pathway of eggs in erratic cycle. |
| Tipo: Journal article |
Palavras-chave: Egg; Dioctophyma renale; Erratic cycle; Extrarenal parasitism; Canine. |
| Ano: 2010 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022010000400008 |
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| Pietrykowska-Tudruj, E.; Staniec, B.; Wojas, T.; Alexey, A.. |
| For the first time eggs, larvae and pupae obtained by rearing are described for Astrapaeus, a monotypic West Palearctic rove beetle genus of a puzzling phylogenetic position within the megadiverse tribe Staphylinini. Morphology of the immature stages of Astrapaeus ulmi is compared to that of other members of the tribe and discussed in a phylogenetic context. Contrary to conventional systematics and in accordance with recently developed phylogenetic hypotheses based on morphology of adults, larval morphology supports the non-Quediina affiliation of Astrapaeus. Eggs and pupae provided fewer characters with putative phylogenetic signal. Under laboratory conditions, a peculiar preference for isopod prey was observed for A. ulmi. However, this could not be... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Egg; Feeding preference; Larva; Life cycle; Morphology; Phylogeny; Pupa; 42.75; 42.64. |
| Ano: 2014 |
URL: http://www.repository.naturalis.nl/record/472282 |
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| Korzelecka-Orkisz,Agata; Szalast,Zuzanna; Pawlos,Dorota; Smaruj,Izabella; Tañski,Adam; Szulc,Joanna; Formicki,Krzysztof. |
| This study describes the egg membrane structures of angelfish (Pterophyllum scalare), morpho-physiological changes during angelfish embryogenesis from activation to hatching under optimal conditions (28°C; pH 6.8), the developing larvae and fry, the effect of alkaline pH on the early developmental stages of the species, the relationship between food item size and fry survival. Egg membranes (thin, transparent, 1.67-2.18 µm thick) are covered by a sticky substance. The amber-coloured angelfish eggs were oval in shape, with average diameters of 1.436 and 1.171 mm, i.e., a mean volume of 1.033 ± 0.095 mm³. The survival rate of embryos and larvae kept in water with an elevated, slightly alkaline pH was very low: as few as 2% of the embryos survived, while in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Egg; Embryogenesis; Embryonic motorics; Larvae morphometry; Membrane structures. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252012000300010 |
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| Souza,JG; Costa,FGP; Queiroga,RCRE; Silva,JHV; Schuler,ARP; Goulart,CC. |
| The incorporation of polyunsaturated fatty acids in chicken eggs by adding oils to the diets has been extensively studied. This experiment aimed at evaluating possible changes in the fatty acid profile of the eggs of layers fed diets supplemented with linseed and soybean oils. The experiment was performed using 192 29 week-old laying hens, distributed in a completely randomized design, into six treatments with four replicates of eight birds each. Treatments consisted of a control diet (no vegetable oil) and diets including 2% of vegetable oil. Linseed oil replaced 0, 25, 50, 75, and 100% soybean oil in the diets, corresponding to 0.0, 0.5, 1.0, 1.5, and 2.0% of linseed oil in the diet. A pool of two egg yolks from each treatment was submitted to lipid... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Egg; Enrichment; Fatty acids. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2008000100006 |
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| Denadai,JC; Ducatti,C; Pezzato,AC; Carrijo,AS; Caldara,FR; Oliveira,RP. |
| This paper aimed at evaluating the influence of diets containing different isotopic values of carbon-13 turnover on the half-life of egg (yolk + albumen), yolk and albumen individually, and blood of poultry using delta13C isotopic variation. Commercial layers fed four experimental isocaloric and isonitrogenous diets (RC4, RC3, RMC4 and RMC3) containing different isotopic values, during an experimental period of 56 days. Turnover of the studied tissues was influenced by the experimental diets. Blood and albumen were more influenced by dietary treatments as compared to egg and yolk. The RMC3 diet induced better performance (better feed intake and higher egg production) due faster rate of carbon substitution than the RC4 diet, and lower half-life for egg... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Albumen; Carbon-13; Yolk; Blood; Egg; Comercial laying hens. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2006000400008 |
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| Faria,DE; Junqueira,OM; Souza,PA; Titto,EAL. |
| Three experiments were conducted in a climatic chamber to determine the effects of vitamins D3 and C supplementation on performance, body temperature, and egg quality under thermoneutral temperature (24.8º to 27.0º C), a cyclic heat stress (26.2º C for 16 h and 32.1º C for 8 h) and a constant heat stress (30.0º to 32.0º C) for three weeks in each temperature. One hundred forty-four White Leghorn hens aged 31 weeks were used in a completely randomized design with a factorial arrangement of 3 x 3: vitamin D3 (2,500, 3,000, and 3,500 IU/kg) and vitamin C (0, 200, and 400 ppm), with a total of nine treatments with four replicates of four hens each. Parameters measured included feed intake (FI), feed:gain (FG), egg production (EP), egg weight (EW), egg mass... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ascorbic acid; Cholecalciferol; Egg; Heat stress; Laying hens. |
| Ano: 2001 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2001000100005 |
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| Casari,Sônia A.; Teixeira,Édson P.. |
| Immatures of Acanthocinini (Coleoptera, Cerambycidae, Lamiinae). Larva and pupa of Eutrypanus dorsalis (Germar, 1928), collected in trunks of Pinus elliottii Engelm., and Paratenthras martinsi Monné, 1998, collected in spathes of Scheelea phalerata (Mart. ex Spreng.) Burret, are described and illustrated. Larva and pupa of Lophopoeum timbouvae Lameere, 1884, collected in Hymenaea corbaril L., Enterolobium contortisiliquum (Vell.) Morong and Pterogyne nitens Tul., are redescribed and illustrated. A table with all described immatures of Lamiinae, and a comparison among the immatures of Acanthocinini are presented. Biological notes and new records are also included. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Arecaceae; Cariniana estrellensis; Egg; Euterpe edulis; Host plants; Insecta. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262014000200003 |
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| Registros recuperados: 33 | |
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