Consulta: subjectFacets:"Reproductive behaviour"
Registros recuperados: 9
Data/hora: 17/06/2024 05:15:43

Comportamento sexual do macho caprino da raça Moxotó às variações estacionais no Nordeste do Brasil.
Provedor de dados: 14
Autores: SILVA, A. E. D. F.; NUNES, J. F.
Resumo: Dez bodes da raca moxoto em idade de 24 a 26 meses foram submetidos durante dois anos a duas colheitas de ejaculados espermaticos semanais em vagina artificial. Os animais foram mantidos em pastagem nativa de caatinga raleada. Na avaliacao quantitativa do semen, encontrou-se maior volume na estacao chuvosa do que na seca. A concentracao de espermatozoides no ejaculado foi inversamente proporcional ao volume, portanto variando com as epocas do ano. Na estacao seca a porcentagem de espermatozoides vivos foi menor do que na estacao chuvosa. A patologia espermatica foi maior na estacao seca do que na chuvosa, porem essa patologia estava dentro do limite permitido(20-25%) para se obter uma taxa de fecundacao satisfatoria em qualquer das estacoes. Os...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Raça Moxotó; Efeito climático; Native breed; Macho; Sexual behaviour.; Reproductive behaviour; Caprino; Comportamento sexual; Sêmen; Testiculo; Eficiência reprodutiva.; Goats; Reproductive efficiency; Spermatozoa; Testes; Seasons.
Ano: 1988
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/514272

Reproduction et fécondité du mâchoiron Chrysichthys nigrodigitatus en élévage
Provedor de dados: 20
Autores: Otémé, Ziriga Josué.
Différentes structures d'élevage (bassin en béton, enclos et étangs) ont été testées pour leurs convenance comme structures de ponte. Les bassins en béton et les petits enclos en lagune ont donné les meilleurs résultats quant au nombre de pontes obtenues. Des trois types de réceptacles de pontes testés, les réceptacles avec une petite ouverture (150mm de diamètre) à l'une des deux extrémités ont été préférentiellement utilisés par les poissons. Les géniteurs de C. nigroditatus, une fois matures entrent spontanément dans les réceptacles de ponte pour déposer leurs œufs sans intervention externe humaine. L'étude de la fécondité a permis a permis de déterminer la production d’œufs en fonction de la taille et du poids des individus. La fécondité effective...
Tipo: Journal Contribution
Palavras-chave: Reproductive behaviour; Reproductive cycle; Fish ponds.
Ano: 1993
URL: http://hdl.handle.net/1834/5472

Acondicionamiento y manejo de un banco de reproductores de pargo criollo (Lutjanus analis, Cuvier, 1828).
Provedor de dados: 20
Autores: Llanes, Y.; Reyes, R.; Fernández, N.; Ortega, N.
Some handling practices related to health about finfish culture are analyzed and  discussed in this paper. The wild caught broodstocks were cultivated for two years  under environment conditions in concrete pond where developed techniques  avoided  stressful conditions like high stocking densities which may result in  compromised fish health, disease and mortality. Marine fish species are also  susceptible to many infectious pathogens including parasites. As a result of that,  prophylactic bathes have been identified as method of control. Reproductive  parameters could have showed due to good managements.
Tipo: Journal Contribution
Palavras-chave: Stress (mechanics); Marine fish; Reproductive behaviour; Reproductive behaviour; Http://aims.fao.org/aos/agrovoc/c_37902.
Ano: 2011
URL: http://hdl.handle.net/1834/3961

Ecología y conservación de los grandes tiburones costeros de Bahía Anegada, provincia de Buenos Aires, Argentina.
Provedor de dados: 20
Autores: Lucifora, L.O.
Reproduction, age, growth, feeding habits and population dynamics of four large temperate sharks (sand tiger shark Carcharias taurus, school shark Galeorhinus galeus, copper shark Carcharhinus brachyurus, and broadnose sevengill shark Notorynchus cepedianus) were studied in Anegada Bay (between 39°50' and 40°40'S), Argentina. Data were gathered from 1089 individuals examined during a three-year study period. Age and growth were studied through examination of vertebral centra only in the first three species. Population dynamics was modeled through stage matrix population models. Most sand tiger sharks examined were adults and evidence indicates that they use the study area as a mating ground. Sand tiger males mature at 193 and females at 223 cm total length...
Tipo: Theses and Dissertations
Palavras-chave: Reproductive behaviour; Feeding behaviour; Age; Growth; Exploitation; Shark fisheries; Reproductive behaviour; Feeding behaviour; Growth; Age; Http://aims.fao.org/aos/agrovoc/c_37902; Http://aims.fao.org/aos/agrovoc/c_10778; Http://aims.fao.org/aos/agrovoc/c_3394; Http://aims.fao.org/aos/agrovoc/c_186.
Ano: 2003
URL: http://hdl.handle.net/1834/1441

Cangrejo Rojo Ucides occidentalis un análisis durante el periodo de veda reproductiva, 2009
Provedor de dados: 20
Autores: Moreno, Juan; Solano, Fedra.
El presente documento hace referencia a las fase reproductiva del cangrejo rojo Ucides occidentalis durante el periodo de veda reproductiva, en base a un muestreo ”in situ” el cual se ejecutó en dos fases: la primera a nivel del Estuario del Golfo de Guayaquil parte de Churute, Isla Mondragón, Isla Escalante, y sector Chupadores Chico, entre el 28 de enero al 1 de febrero de 2009; y la segunda en la Reserva de Manglares de Churute y el sector de Naranjal entre el 9 al 14 de febrero de 2009. Los resultados obtenidos durante ambas fases de muestreo constataron la presencia del cortejo, paseo o gateo al encontrarse en la mayoría de madrigueras tapadas ejemplares de hembras ovadas. En la segunda fase predominaron madrigueras destapadas con hembras desovadas....
Tipo: Journal Contribution
Palavras-chave: Season regulations; Mangroves; Reproductive behaviour.
Ano: 2009
URL: http://hdl.handle.net/1834/4564

Ecología del cangrejo violinista Uca uruguayensis: distribución, comportamiento reproductivo y su interacción con aves migratorias.
Provedor de dados: 20
Autores: Ribeiro, P.D.
Universidad Nacional de Mar del Plata, Facultad de Ciencias Exactas y Naturales (Argentina)
Tipo: Theses and Dissertations
Palavras-chave: Ecology; Density; Distribution; Reproductive behaviour; Interspecific relationships; Abundance; Trophic relationships; Predation; Environmental conditions; Distribution; Reproductive behaviour; Ecology; Predation; Density; Environmental conditions; Http://aims.fao.org/aos/agrovoc/c_35773; Http://aims.fao.org/aos/agrovoc/c_37902; Http://aims.fao.org/aos/agrovoc/c_2467; Http://aims.fao.org/aos/agrovoc/c_6162; Http://aims.fao.org/aos/agrovoc/c_2186; Http://aims.fao.org/aos/agrovoc/c_32980.
Ano: 2004
URL: http://hdl.handle.net/1834/2960

Sistemática, biología y ecología del Titi Sicydium antillarum Grant (Pisces: Gobiidae) en la región de Santa Marta, Colombia
Provedor de dados: 20
Autores: Silva-Melo, L.; Acero-P., A.
Sícydium antillarum Grant es un gobiido abundante en las corrientes que bajan de la SierraNevada de Santa Marta (Colombia) al mar. Se estudió la población de la Quebrada Valencia y las postlarvas en las bocas de los ríos Manzanares y Gaira, entre febrero de 1987 y enero de 1988.  Se presentan datos morfológicos, merísticos y morfométricos de la especie; la población desovó de mayo a diciembre, con picos máximos en junio y octubre. La proporción hembras: machos fue casi 1:1 de enero a marzo; de abril a diciembre los machos se apoderan de un territorio y se dificulta su captura, principalmente en septiembre y octubre (proporción 9:1). La fecundidad máxima fue de 91067 huevos en una hembra de 109 mm; el 25% de los ejemplares alcanzó la madurez entre 60.0 y...
Tipo: Journal Contribution
Palavras-chave: Ecology; Ichthyology; Geographical distribution; Reproductive behaviour; Feeding behaviour; Biology; Morphometry; Stomach content; Ecology; Geographical distribution; Reproductive behaviour; Feeding behaviour; Ichthyology; Biology; Http://aims.fao.org/aos/agrovoc/c_2467; Http://aims.fao.org/aos/agrovoc/c_5083; Http://aims.fao.org/aos/agrovoc/c_37902; Http://aims.fao.org/aos/agrovoc/c_10778; Http://aims.fao.org/aos/agrovoc/c_3788; Http://aims.fao.org/aos/agrovoc/c_925.
Ano: 1990
URL: http://hdl.handle.net/1834/3889

Características ecológicas del pulpito Octopus Tehuelchus en tres ambientes del golfo San Matías
Provedor de dados: 20
Autores: Storero, L.P.
Coastal marine ecosystems are highly variable and the inherent biotic and abiotic factors of these environments can influence the bio-ecological characteristics of the living cephalopods. The presence of the small octopus “pulpito” Octopus tehuelchus in the coastal environments of San Matías Gulf has been exploited by artisanal fishermen for more than 60 years. The aim of this study is to evaluate the variations in the life cycle of the pulpito, and the factors that could account for these variations in three different coastal environments of San Matías Gulf, with differences in the physical, ecological and fisheries characteristics. This study was developed in San Antonio bay, El Fuerte and Islote Lobos. Monthly samplings (October 2005-2007) in the...
Tipo: Theses and Dissertations
Palavras-chave: Fishery biology; Cephalopod fisheries; Artisanal fishing; Coastal zone management; Coastal environment; Environmental conditions; Population dynamics; Sex composition; Spatial distribution; Morphology (animal); Life cycle; Feeding; Size-at-first-maturity; Age determination; Growth; Reproduction; Reproductive behaviour.
Ano: 2010
URL: http://hdl.handle.net/1834/5023

Contribution a l’étude écobiologique et biochimique du crabe "Carcinus aestuarii " dans la région nord de Sfax
Provedor de dados: 20
Autores: Baklouti Zouari, S.
The main objective of this work is to study some biological aspects of Carcinus aestuarii Northern Sfax (biometry, reproduction, diet), and biochemical contents (water, protein, minerals, and fat). Analysis of metric characteristics of Carcinus aestuarii allowed us to determine the nature of the allometry between the width and différent parts of the body of the crab. For reproduction study, analysis of monthly changes in the gonadosomatic index (GSI) shows that the spawning period of Carcinus aestuarii North Sfax occurs from October to January. The analysis of monthly variations of the hepatosomatic index (HSI), shows that this species used the hepatic reserved to the maturity of gonads. The analysis of monthly variations of the sex-ratio shows that the...
Tipo: Theses and Dissertations
Palavras-chave: Biometrics; Biochemical analysis; Reproductive behaviour; Carcinus aestuarii.
Ano: 2010
URL: http://hdl.handle.net/1834/5481