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| Registros recuperados: 249 | |
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| LEITE,Rosseval Galdino; ARAUJO-LIMA,Carlos A.R.M.. |
| Information on larval fish feeding is essential for understanding their trophic relations, including the management in conditions totally or partially controlled by humans. An experiment was designed to evaluate the larval diets of three commercially important species. Four varzea-lakes and the adjacent river were sampled with bongo and hand nets from January 1993 to November 1995. Larval diets were evaluated by length-classes and capture sites, and were tested by two factor ANOVA. The larvae were feeding in all habitats, except in the flooded forests. The three species had different diets, which varied with their length and lake. The rotifers were the main initial food item of the three species, replaced by fish larvae in Brycon cephalus, cladocerans in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amazon; Brazil; Feeding; Fish larvae; Food size. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672002000300499 |
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| SILVA,Nathália Carina dos Santos; COSTA,Aluízio José Lopes da; LOUVISE,José; SOARES,Bruno Eleres; REIS,Vanessa Cristine e Souza; ALBRECHT,Míriam Pilz; CARAMASCHI,Érica Pellegrini. |
| ABSTRACTResource partitioning is important for species coexistence. Species with similar ecomorphology are potential competitors, especially when phylogenetically close, due to niche conservatism. The aim of this study was to investigate the resource partitioning among populations of two species of lebiasinids (Copella nigrofasciata and Pyrrhulina aff. brevis) that co-occur in a first-order Amazonian stream, analyzing the trophic ecology, feeding strategies and ecomorphological attributes related to the use of food and space by these species. Fish were captured in May and September 2010. The stomach contents of 60 individuals were analyzed and quantified volumetrically to characterize the feeding ecology of both species. Eleven morphological attributes... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Feeding; Coexistence; Spatial segregation; Copella nigrofasciata; Pyrrhulina aff. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672016000100025 |
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| GARCÍA-ROSALES,Aaron; ARRIAGA-NOGUΕΖ,Alicia; RAMÍREZ-BAUTISTA,Aurelio. |
| ABSTRACT The genera Iguana and Ctenosaura belong to the Iguanidae family, and populations of most species of these genera have decreased due to anthropogenic effects. The natural history of most species of this family is poorly known, including Ctenosaura similis. Therefore, this study documents some ecological aspects of the species, such as its feeding habits, and habitat and microhabitat use in a population of Isla Contoy in Quintana Roo, Mexico. The data showed that even though C. similis is distributed throughout the island, individuals more commonly use human construction (buildings) of Parque Nacional Isla Contoy (PNIC) and mangrove areas. Microhabitats most used by all age classes and sexes were rocks and trees. The diet of the species is... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Animal ecology; Animal population; Feeding; Opportunistic species; Reptilia. |
| Ano: 2020 |
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2020000300394 |
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| Barbosa, Moysés Cavichioli; Universidade Federal de Santa Catarina; Neves, Fábio de Fárias; Universidade Federal de Santa Catarina; Cerqueira, Vinicius Ronzani; Universidade Federal de Santa Catarina. |
| O conhecimento da taxa ótima de alimentação para uma determinada espécie não só é importante para promover o maior crescimento e a melhor eficiência na alimentação, mas também para prevenir a deterioração de qualidade de água como resultado do excesso de alimento. O presente estudo teve como objetivo avaliar o desempenho do robalo-peva, Centropomus parallelus cultivado em tanques-rede flutuantes sob o efeito de diferentes taxas alimentares (1; 1,5; 2 e 2,5% da biomassa ao dia e a taxa controle que foi até a saciedade), em condições de cultivo no ambiente natural. Durante 40 dias, cada tratamento foi avaliado em triplicatas e foram verificados os parâmetros biológicos (sobrevivência, taxa de crescimento específico, peso e comprimentos médios finais) e... |
| Tipo: Criação em condições naturais |
Palavras-chave: 5.06.03.00-0 Alimentação; Centropomus parallelus; Crescimento; Cultivo intensivo; Piscicultura Centropomus parallelus; Feeding; Fish culture; Growth; Intensive rearing. |
| Ano: 2011 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/11413 |
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| Signor, Altevir; Lewandowski, Vanessa; da Silva, Rodrigo Aguiar; Fries, Edionei Maico; Schuller, Jean Marcel. |
| This study aimed to evaluate the digestibility of plant energetic ingredients, corn, sorghum and wheat bran, with and without phytase supplementation, in silver catfish (Rhamdia voulezi). The experimental design was completely randomized, represented by eight treatments, which consisted of the development of a reference diet and a test diet for each ingredient evaluated (corn, sorghum and wheat bran), with and without supplemental phytase. Diets were formulated so as to contain 70% reference feed and 30% test ingredient. The digestibility coefficients of dry matter and crude protein were significantly influenced only in relation to the evaluated ingredients. Phytase influenced the digestibility coefficients of energy and phosphorus, with interaction... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Feeding; Enzyme; Plant energetic ingredients; Silver catfish. |
| Ano: 2016 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/32054 |
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| Pimentel, Leidiane Reis; Silva, Fabiano Ferreira da; Silva, Robério Rodrigues; Schio, Alex Resende; Rodrigues, Eli Santana de Oliveira; Oliveira, Paulo Andrade de. |
| This study aimed to evaluate the effect of including of palm kernel cake on feeding behavior of lactating crossbred cows. Twelve crossbred Holstein x Zebu cows were distributed in three 4 x 4 latin squares, with the following treatments: control; inclusion of 5%; inclusion of 10%; inclusion of 15% palm kernel cake in the diet dry matter. The animals were observed during four periods as to feeding behavior, 24 hours in each period. There was no effect of inclusion of palm kernel cake (p > 0.05) on time spent on eating, ruminating and idling. The feeding efficiencies of dry matter and corrected neutral detergent fiber, total digestible nutrients, and the rumination efficiency of corrected neutral detergent fiber were not influenced (p > 0.05). There... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Behavioral activities; Feeding; Feed efficiency; Dry matter; Idle; Rumination. |
| Ano: 2015 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/23391 |
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| Alves, Gustavo Henrique Zaia; Tófoli, Raffael Marcos; Ganassin, Maria Julia Mileo; Hahn, Norma Segatti. |
| This study aimed to assess the diet of Poecilia reticulata in rural (RS) and urban stream (US) and under seasonal influence. We hypothesized that rainfall have a strong negative impact on the diet of the species in the US, due to its abrupt effect on food resources; in RS this effect is less apparent. Both streams belong to Pirapó River sub-basin, Paraná River basin. Fishes were sampled bimonthly, between July 2007 and June 2008 in three sample sites along the longitudinal gradient of the streams, using electrofishing. According to the Feeding Index, in both streams the population consumed almost exclusively detritus associated with aquatic organisms (>95%), regardless of the hydrological period. The main taxa explored by fish were Simuliidae in RS and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ecologia de ecossistemas benthivorous fish; Feeding; Macroinvertebrates; Anthropic impact; Paraná River basin Ecologia alimentar de peixes. |
| Ano: 2016 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/29881 |
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| Matos, Liliane Stedile; Silva, João Otávio dos Santos; Beckmann, Marcos Alencar; Moreira, Paula Sueli Andrade; Oliveira, André Soares de; Carvalho, Lucélia Nobre. |
| In the Teles Pires River watershed, one of the most common techniques currently used by fishermen to catch fish is to provide a food supplement commonly known as “cevas”. The purpose of this study was to compare the chemical composition of fillets from Brycon falcatus that were caught in both the presence and absence of cevas. The fish were sampled monthly and captured in the following conditions: the Tapaiúna River without cevas, the Teles Pires River with one ceva/100 m, the Celeste River with one ceva/500 m, the Verde River with one ceva/1000 m and the Cristalino River (control area). Subsequent to capture, the fish were euthanized and preserved on ice to determine their water, ash, crude protein and fat contents. Fillets of fish from the control area... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amazon basin; Fresh soybean; Feeding; Lipids; Matrinxã; Protein. Recursos Pesqueiros. |
| Ano: 2017 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/30470 |
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| Santos, José Cláudio Epaminondas dos; Centro Integrado de Recursos Pesqueiros e Aquicultura de Três Marias; Pedreira, Marcelo Mattos; Universidade Federal dos Vales do Jequitinhonha e Mucuri; Luz, Ronald Kennedy; Universidade Federal de Minas Gerais. |
| The aim of this study was to evaluate three stocking densities (20, 40 and 60 larvae L-1), and two daily prey concentrations (400 and 700 Artemia nauplii larvae-1) during the first seven days of active feeding (first phase). In the second phase was evaluate the effect of the different feeding regimes: fasting, dry diet (55% crude protein), Artemia sp. and mixed feeding (Artemia sp. plus dry diet), after 17 days of active feeding on Rhinelepis aspera larviculture. In the first phase, growth was affected only by prey concentration. In the second phase, the dry diet induced higher growth rates than fasting, but lower growth rates than the other treatments. The acceptance of the dry diet was evidenced by an increase in the growth rate from 4.6% day-1 in the... |
| Tipo: Índice de desempenho |
Palavras-chave: 2.04.00.00-4 “Cascudo preto”; Commercial diet; Feeding; Ornamental fish Zoologia. |
| Ano: 2012 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/8541 |
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| Costa, Simone Almeida Gavilan Leandro da; UERN; Peretti, Danielle; UERN; Pinto Júnior, José Egberto Mesquita; UERN; Fernandes, Maria Aparecida; UERN; Gurgel Júnior, Antonio Maria; UERN. |
| Avaliaram-se a dieta e as variações sazonais na alimentação de Plagioscion squamosissimus, capturados mensalmente, na lagoa do Piató, Assu, Estado do Rio Grande do Norte, entre agosto de 2004 e julho de 2005, com despescas em horários específicos. Em laboratório, após a biometria, os peixes foram abertos e eviscerados. Sob microscópio estereoscópico, analisaram-se os conteúdos estomacais, cujos itens, depois de identificados, tiveram o seu volume medido. Foram calculadas as frequências de ocorrência e volumétrica e o índice alimentar. Agruparam-se os itens em sete categorias principais, e camarão e insetos foram as predominantes. A categorização dos itens permitiu classificar a espécie como carnívora com tendência a carcinofagia-insetivoria. Quanto à... |
| Tipo: Dieta; indice alimentar; variação sazonal |
Palavras-chave: 2.00.00.00-6 Ciências Biológicas Plagioscion squamosissimus; Alimentação; Água doce; Índice alimentar Ecologia Plagioscion squamosissimus; Feeding; Freshwater; Food index. |
| Ano: 2009 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/2140 |
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| Abrunhosa,Fernando A.; Arruda,Danielle C.B.; Simith,Darlan J.B.; Palmeira,Carlos A.M.. |
| The present study investigated whether the callianassid Callichirus major shows a lecithotrophic behaviour during larval development. Two experiments were carried out. In the first experiment, larvae were subjected to an initial period of feeding, while in the second they were subjected to an initial period of starvation. In Experiment 1, 80% of C. major larvae succeeded moulting to juvenile stage in treatment with larvae fed every day. In the treatments with larvae fed for 1, 2 and 3 days there was total mortality before they reached the megalopal stage. In Experiment 2, zoea larvae showed more resistance when subjected to an initial period of starvation in which larvae starved for 1, 2 and 3 days and had survival rates of 100, 60 and 80%, respectively.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Callichirus major; Callianassidae; Feeding; Lecithotrophic behaviour; Starvation. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652008000300006 |
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| Aidar,Davi S.; Campos,Lucio A.O.. |
| Three methods of division of Melipona quadrifasciata Lep. colonies were evaluated: fisogastric queen naturally mated; orphans colonies, and queen mated in laboratory. Out of six colonies, five had grade 7 in 221 days, reaching 83,3% of success, in the 1st method. Out of four, 100% were formed using the 2nd method, in 221 days, and 71,4% out of seven colonies were formed with grade 7 in 195 days using the 3rd method. All colonies were treated with Syrup-A; the same management and same system of evaluation. Colonies obtained were described performance by the following mathematic models: Grade1 = 1.202 + 0.262 x reading; Grade2 = 1.474 + 0.250 x reading and Grade3 = 1.406 + 0.287 x reading. The 3rd method was the best considering time of the colonies... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Insecta; Hymenoptera; Beecolonies; Feeding; Fisogastric queens. |
| Ano: 1998 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0301-80591998000100021 |
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| Seixas Filho,J.T.; Santana,A.C.; Martins,A.C.P.F.; Mesquita,E.F.M.; Mello,S.C.R.P.; Hipolito,M.. |
| ABSTRACT Ascites is a pathology characterized by the extravasation of fluid from blood vessels and its accumulation in the abdominal cavity, caused by several associated factors. In this paper, we report the occurrence of this syndrome in breeding male and female Bullfrogs fed a commercial fish feed with 40% crude protein. Liver malformation was already observed due to lack of protein deposition in adult animals from the same spawning. The culture of ascitic fluid showed absence of bacterial growth. Kidney histopathology showed, in both sexes, a large number of tubular structures with strongly eosinophilic hyaline material suggesting colloid growth in both the cortical region and spinal cord. The analysis also revealed granulomas in various stages of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Captive breeding; Feeding; Histopathology; Metabolic disease; Lithobates catesbeianus. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352019000601955 |
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| Gugołek,A.; Zabockłi,W.; Kowalska,D.; Janiszewski,P.; Konstantynowicz,M.; Strychalski,J.. |
| Three digestibility experiments on Arctic foxes were carried out. Control groups were fed standard diets (C1 and C2) composed of fresh or frozen animal by-products and steamed ground grain. Dry experimental diets (E1 and E2) contained animal meals, extracted meals and fat, were mixed with water prior to administration. In a preliminary experiment, the digestibility of dry diet E1 moistened with water for 15min and 24h was compared to determine the optimum moistening time during the experimental period proper. The preliminary experiment showed that moistening time had no significant effect on digestibility. In the main experiment, two independent digestibility trials were performed to compare the digestibility of diets fed to foxes during growth (C1 vs. E1)... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Vulpes lagopus; Feeding; Digestibility; Animal meal. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352010000400026 |
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| López,C.A.A.; Lima,K.R.S.; Manno,M C.; Tavares,F.B.; Fernandes Neto,D.L.; Jesus,M.L.C.; Viana,M.A.O.; Fonseca,L.A.B.. |
| The effects of cashew nut shell liquid (CNSL) on growth performance, carcass yield, relative weight of internal organs and microbiology of digestive tract of broiler chickens were investigated. Five hundred and forty male broiler chicks at one day of age were arranged in a completely randomized design with six treatments and six repetitions with 15 broiler chicks each. The treatments were: control (T1 - without growth promoter virginiamycin and CNSL); inclusion levels of 0.10mL (T2), 0.20mL (T3), 0.30mL (T4) and 0.40mL (T5) of CNSL/kg of feed; and commercial promoter virginiamycin (T6). At 21 and 40 days of age, body weight, feed intake, feed conversion and viability of birds were similar in all treatments. Carcass yield was higher in the treatment with... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Feeding; Feed conversion; Nutrition; Vegetable extract. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352012000400032 |
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| Shibuya,Akemi; Zuanon,Jansen. |
| In spite of the fact that catfish have rarely been reported as food items in the diets of freshwater stingrays, they are commonly observed in the stomach contents of species inhabiting the Solimões and Negro rivers in the Brazilian Amazon. The stomach contents of six rays from the Solimões River and 64 from the Negro River were analyzed, and catfishes (distributed among the families Callichthyidae, Cetopsidae, Doradidae and Loricariidae) were found in the stomach contents of four and 10 of these rays, respectively, comprising a frequency of occurrence of 20%. These data indicate a relevant participation of catfishes in the diets of potamotrygonid rays in the Amazon, and may reflect the regional diversity and abundance of Siluriformes in the region. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Diet; Feeding; Freshwater stingrays; Myliobatiformes; Siluriformes. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032013000100041 |
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| Registros recuperados: 249 | |
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