SABIIA - Sistema Aberto e Integrado de Informação em Agricultura (Sabiia)

Lima,Jô de Farias; Silva,Luis Mauricio Abdon da; Silva,Thibério Carvalho da; Garcia,Jamile da Silva; Pereira,Ilana da Silva; Amaral,Karlia Dalla Santa.

Macrobrachium amazonicum is an indigenous prawn vastly distributed in basins of South America, widely exploited by artisanal fisheries in northern and northeastern Brazil and, with great potential for aquaculture. This study aimed to investigate general aspects of population structure and reproductive characteristics (size at first maturity, fecundity and reproductive output) of M. amazonicum from two important areas to artisanal prawn fishing located at the mouth of the Amazon River, State of Amapá. The specimens were captured using 20 handcrafted traps called "matapi". A number of 5,179 prawns were captured, 2,975 females and 2,195 males resulting in 1.35:1 female to male ratio. Santana Island and Mazagão Velho showed females predominated in the...

Description of the reproductive behavior of Symphysodon aequifasciatus (Cichlidae) in captivity

Palavras-chave: Palaemonid eggs; First maturation; Fecundity; Morphometric relationships; Reproduction.

Ano: 2014

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672014000200010

MATTOS,Douglas da Cruz; SCRENCI-RIBEIRO,Rafaela; CARDOSO,Leonardo Demier; JUNIOR,Manuel Vazquez Vidal.

ABSTRACT The blue discus (Symphysodon aequifasciatus) is often sold for ornamental purposes. It is a neotropical cichlid from South America, which is native to the rivers of the Amazon basin of Brazil, Peru and Colombia. The purpose of this study was to characterize the reproductive behavior of S. aequifasciatus and identify features that can later be used by breeders to facilitate the handling and reproduction of this species in captivity. The experiment was divided into two stages: the first dealt with partner selection and couple formation to observe the behaviors of territoriality, pursuing, fleeing, biting, stay, protecting and cleaning of the substrate. The second stage documented mating behavior, nesting and parental care, to observe vibration,...

Reproductive and feeding biology of the common lancehead Bothrops atrox (Serpentes, Viperidae) from central and southwestern Brazilian Amazonia

Palavras-chave: Amazonian Fish; Ornamental Fish; Larviculture; Reproduction; Behavior.

Ano: 2016

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672016000400433

BISNETO,Pedro Ferreira; KAEFER,Igor Luis.

ABSTRACT The pitviper Bothrops atrox is a widely distributed and medically important snake in Amazonia. Given that the reproductive and feeding biology of snakes varies geographically, we aimed to characterize the natural history of individuals from the central and southwestern portions of the biome. We analyzed museum-preserved specimens collected in the region between the metropolitan areas of the Brazilian cities of Manaus and Porto Velho. We took morphometric measurements and performed the analysis of gonads and digestive tracts of 109 individuals. Females attain sexual maturity with larger body sizes. Adults of the species show pronounced sexual dimorphism in body size, with females being larger. The reproductive cycle, especially in males, appears to...

Nestling development and data on nests and eggs of Topaza pella (Aves, Trochilidae) in Amapá state, northern Brazil

Palavras-chave: Diet; Natural history; Neotropics; Reproduction.

Ano: 2019

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672019000200105

FRANÇA,Pedro Ferreira; SANTOS,Wirley Almeida; COSTA-CAMPOS,Carlos Eduardo; LOPES,Edson Varga.

ABSTRACT The Crimson Topaz, Topaza pella, is the least known of the two hummingbird species of this exclusively Amazonian trochilid genus, that also includes T. pyra. Most available information on T. pella nests, young and reproductive behavior is based on anecdotal observations from Guyana in the 1930s and 1950s. Here, we provide new data on nest description, eggs and parental care of T. pella, and the growth and development of two nestlings over a 22-day period. We studied four nests in areas of dense terra firme forest in the state of Amapá, Brazil. All nests were in forked branches of shrubs over water bodies, and had a cup-like form. One nest contained two elongated white eggs, and another, two nestlings, which had their development recorded until...

Tipo: Info:eu-repo/semantics/report

Palavras-chave: Amazonia; Hummingbirds; Reproduction; Crimson Topaz; Parental care.

Ano: 2020

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000200138

The stimulatory effect of male agouti (Dasyprocta prymnolopha) on the onset of female puberty

Guimarães,Diva Anelie de Araújo; Ramos,Rosemar Silva Luz; Garcia,Gary Wayne; Ohashi,Otávio Mitio.

The objective of this research was to analyze female agouti puberty. We did not observe the onset of puberty when the females were raised without males. When an adult male was put together with other adults and no cycling females, the onset of estrous cycle was observed after 10 to 60 days. When the young females were raised with a male, the onset of puberty was reached at 9 months. We concluded that the male agouti influences the onset of puberty in females, and that the dominant female, apparently, inhibits or delays the puberty of the other agouti females of the group. We suggest further studies be made concerning the social control of the reproduction of these animal.

Couple formation and spawning between two female Discus Fish (Symphysodon aequifasciatus - Cichlidae) in captivity

Palavras-chave: Agouti; Reproduction; Puberty; Estrous cycle; Captivity.

Ano: 2009

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672009000400004

MATTOS,Douglas da Cruz; SCRENCI-RIBEIRO,Rafaela; CARDOSO,Leonardo Demier; JUNIOR,Manuel Vazquez Vidal.

ABSTRACT In an experiment performed to characterize the reproductive behavior of the discus fish in captivity, couple formation with two females was observed. The observations were carried out in captivity, based on ad libitum methodology. Adult individuals were allowed to naturally form couples. The couple formation was considered when individuals performed the substrate cleaning behavior. Fifteen couples were selected. The eggs of three couples did not initiate embryonic development and became infeasible within three days after spawning. We found that these spawnings belonged to all-female couples. The sex of the individuals in same-sex couples was confirmed through subsequent couple formation and spawning of fertile eggs with known males. Eggs were...

Tipo: Info:eu-repo/semantics/report

Palavras-chave: Reproduction; Behavior; Aquaculture; Amazonian fish.

Ano: 2017

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672017000200167

Puberty in male collared peccary (Pecari tajacu) determined by quantitative analysis of spermatogenic cells

Guimarães,Diva Anelie; Cardoso,Deise de Lima; Ferreira,Maria Auxiliadora Pantoja; Albuquerque,Natália Inagaki de.

Biological studies are necessary for the management of wildlife in captivity, and knowledge of reproduction is one of the important features for increasing production. The objective of the research was to determine the age at which male collared peccaries reach puberty. Testicular samples of 15 animals, aged 7 to 16 months, distributed into five groups (G1, G2, G3, G4 and G5) were used. The testes showed considerably increased weight, length and width (p < 0.05) from G1 to G3, whereas, from this group onward, the development of this organ was slower. There was positive correlation (p < 0.001) between the following testicular parameters: weight and length (r = 0.97), weight and width (r = 0.88), length and width (r = 0.92). Regarding the diameter of...

Reproductive morphology and phenological aspects of one morphological variant of Hypnea pseudomusciformis (Gigartinales, Rhodophyta)

Palavras-chave: Reproduction; Testicles; Spermatogenesis; Tayassuidae.

Ano: 2013

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672013000100012

Jesus,Priscila Barreto de; Pestana,Edilene Maria dos Santos; Affe,Helen Michelle de Jesus; Rocha,Diogo Souza Bezerra; Caires,Taiara Aguiar; Nunes,José Marcos de Castro; Schnadelbach,Alessandra Selbach.

ABSTRACT Hypnea pseudomusciformis was recently described from South America, and has three morphological variants: “musciformis”, “nigrescens”, and “valentiae”. Information on the biology of these variants may help to explain this species’ wide morphological variation despite the absence of genetic divergence among variants. More morphological and ecological data has accumulated on the “musciformis” variant occurring on the Brazilian coast than for the others. In this study, we described the reproductive morphology of a tropical “nigrescens” population and investigated its phenology to provide crucial biological information about this taxon, and perhaps also assist in answering questions about the systematics of H. pseudomusciformis variants. The...

Pollination biology of melittophilous legume tree species in the Atlantic Forest in Southeast Brazil

Palavras-chave: Biomass; Cystocloniaceae; Ecology; Hypnea musciformis complex; Reproduction; Systematics.

Ano: 2019

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062019000100067

Pinheiro,Mardiore; Brito,Vinicius Lourenço Garcia de; Sazima,Marlies.

ABSTRACT This study describes the floral phenology and morphology, reproductive biology and pollinators for eight legume tree species, Schizolobium parahyba, Senna macranthera, and Senna multijuga (Caesalpinioideae), as well as Andira fraxinifolia, Lonchocarpus cultratus, Pterocarpus violaceus, Swartzia oblata, and S. simplex (Papilionoideae), in the Atlantic Forest in Southeast Brazil. All the studied species showed an annual flowering pattern, and almost all are of the cornucopia-flowering type, with the only exception being Swartzia oblata, which was of the steady-state type. In general, the legume flowers studied are conspicuous, mostly medium-sized, and offer nectar and/or pollen as a resource. Self-incompatibility associated with the production of...

Abiotic environmental conditions for germination and development of gametophytes of Cyathea phalerata Mart. (Cyatheaceae)

Palavras-chave: Bee pollination; Bombus; Caesalpinioideae; Centridini; Euglossina; Faboideae; Floral biology; Reproduction; Self-incompatibility; Xylocopa.

Ano: 2018

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062018000300410

Marcon,Catiuscia; Silveira,Tatieli; Schmitt,Jairo Lizandro; Droste,Annette.

ABSTRACT In order to successfully establish themselves in their natural environment, ferns need habitats with abiotic conditions that are suitable for spore germination and gametophyte development. The objective of this study was to assess the influence of abiotic factors on the initial development of Cyathea phalerata cultivated in vitro. Spore germination and gametophyte development were assessed under varying conditions of surface sterilization, pH, temperature and photoperiod. Exogenous contamination was eliminated by sterilizing spores with 2.5 % NaClO for 15 min and sowing them into a culture medium supplemented with nystatin. Spores germinated at all pHs tested. Gametophytic development was faster in acidic pHs. Cultures at 25 °C exhibited the...

Germination and sporophytic development of Regnellidium diphyllum Lindm. (Marsileaceae) in the presence of copper

Palavras-chave: Abiotic factors; Arborescent ferns; In vitro propagation; Reproduction; Spores.

Ano: 2017

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062017000100058

Cassanego,Mara Betânia Brizola; Goldoni,Angélica; Heldt,Fágner Henrique; Osório,Daniela Montanari Migliavacca; Windisch,Paulo Günter; Droste,Annette.

Regnellidium diphyllum Lindm. is a heterosporous fern growing in wetlands and humid soils that are being converted to agricultural activities. Many products that are used in agriculture contain copper, resulting in surface and groundwater contamination. Germination and initial development tests were performed using Meyer's solution containing copper sulphate at concentrations of 0 (control), 1, 5, 10, 50 and 100 mg L-1. The experiment was conducted in a growth chamber at 25 ± 1ºC for 28 days, with a 12/12-hour light/dark cycle and a photon flux density of 100 µmol m-2 s-1. The lowest germination rate (6%) was observed at 100 mg L-1. Primary root growth was significantly reduced at > 10 mg L-1. Secondary leaves of sporophytes grown in concentrations >...

Ovary development, egg production and oviposition for mated and virgin females of the predator Podisus nigrispinus (Heteroptera: Pentatomidae) - doi: 10.4025/actasciagron.v33i4.6694

Palavras-chave: Fern; Heavy metals; Pollution; Reproduction; Species conservation; Wetlands.

Ano: 2013

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062013000100004

Agronomy

Soares, Marcus Alvaranga; Universidade Federal dos Vales do Jequitinhonha e Mucuri; Batista, Joana Darc; Universidade Federal de Viçosa; Zanuncio, José Cola; Universidade Federal de Viçosa; Lino Neto, José; Universidade Federal de Viçosa; Serrão, José Eduardo; Universidade Federal de Viçosa.

The Asopinae insects are generalist predators, and Podisus nigrispinus (Dallas) (Heteroptera: Pentatomidae) is the most studied species of this group in Brazil. The objective was to study ovarian development, egg production and oviposition of mated and virgin P. nigrispinus females. Five 24-hours-old females were dissected and the ovaries were analyzed. Fifteen females of this predator were mated (T1), and another fifteen were individualized without mating (T2). The ovaries of five females per treatment were dissected and mature and immature eggs were counted. Five virgin females of P. nigrispinus at twenty days old were also analyzed. Twenty-four-hours-old P. nigrispinus females had low ovary development without the evidence of oocyte production. The...

Tipo: Pesquisa de laboratório

Palavras-chave: 5.01.02.02-8 biological control; Insect physiology; Oogenesis; Progeny; Reproduction Entomologia Agrícola biological control; Insect physiology; Oogenesis; Progeny; Reproduction.

Ano: 2011

URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/6694

The effect of feeding inorganic and organic selenium sources on the hematological blood parameters, reproduction and health of dairy cows in the transition period

Khalili, Mohsen; Chamani, Mohammad; Amanlou, Hamid; Nikkhah, Ali; Sadeghi, Aliasghar; Dehkordi, Farhad Kamali; Rafiei, Mohammad; Shirani, Vahid.

The purpose of this study was to investigate the effects of four types of diets containing different forms of selenium on the hematological blood parameters, reproduction and health of dairy cattle during the transition period. Twenty-four close-up dry cows with a mean of 259 ± 1days of pregnancy and expected 21 ± 1days prior to parturition were selected. The cows were fed four diets: 1) basal diet without selenium supplementation (C); 2) basal diet plus 0.5ppm selenium in the form of sodium selenite (Se-S) 3) basal diet plus 0.5ppm selenium in the form of selenium yeast (Se-Y); 4) basal diet plus 0.5ppm selenium in the form of selenomethionine (Se-M). Blood samples for measuring hematological blood parameters (including lymphocyte, red blood cells,...

Qualidade do sêmen em tilápia do Nilo (Oreochromis niloticus), alimentadas com dietas contendo diferentes níveis de vitamina C - doi: 10.4025/actascianimsci.v32i3.7836

Palavras-chave: Selenium; Hematological blood parameters; Reproduction; Health; Dairy cows..

Ano: 2019

URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/45371

Mataveli, Marcela; UEM; Moraes, Gentil Vanini de; UEM; Streit Junior, Danilo Pedro; Universidade Federal do Rio Grande do Sul; Ribeiro, Ricardo Pereira; UEM; Gasparino, Eliane; UEM.

A vitamina C atua na proteção de danos celulares provocados pelos radicais livres, sendo a suplementação considerada essencial para a maioria das espécies de peixes, uma vez que não a sintetizam em função da ausência da enzima L-gulonolactona oxidase. Assim, avaliou-se o efeito da suplementação de 0, 75, 150 e 225 mg de vitamina C kg-1 de ração na qualidade do sêmen em tilápias do Nilo (Oreochromis niloticus). Os parâmetros quali-quantitativos do sêmen não foram influenciados pela suplementação de vitamina C, exceto a motilidade progressiva que aumentou linearmente com adição de vitamina C. Conclui-se que os reprodutores de tilápias do Nilo devem ser suplementados com 225 mg de vitamina C kg-1 de ração.

Tipo: Pesquisa de campo e análise laboratorial

Palavras-chave: 5.00.00.00-4; 5.05.00.00-7 Antioxidante; Radicais livres; Reprodução; Suplementação 5.05.04.00-2 Antioxidant; Free radicals; Reproduction; Supplementation.

Ano: 2010

URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/7836

Effect of diets containing whole cottonseed on the quality of sheep semen - doi: 10.4025/actascianimsci.v34i3.12963

Gomes, Maria das Graças; Empresa Estadual de Pesquisa Agropecuária da Paraíba S. A.; Mazzoni Gonzalez, Carmen Iara; Empresa Estadual de Pesquisa Agropecuária da Paraíba S. A.; Carvalho, Francisco Fernando Ramos de; Universidade Federal Rural de Pernambuco; Soares, Adriana Trindade; Empresa Estadual de Pesquisa Agropecuária da Paraíba S. A..

This study evaluated the semen quality of Santa Ines sheep fed diets containing different levels of whole cottonseed (WCS). Twenty sheep were distributed into four groups that were given diets with 0; 20; 30; 40% of WCS. For this study the semen was collected by electroejaculation, and a monthly andrological examination was performed during nine months. The analyzed variables were: scrotal circumference (SC), appearance and color of the ejaculate, progressive motility (PM), vigor, mass movement (MM), total sperm concentration (spzX109), sperm morphology (SM) and blood hematocrit. The SC had no difference among diets, with mean 31.83 cm. The animals fed diets with WCS, presented mean intake of 9.16 mg gossypol kg BW, and were prone to present greenish...

Tipo: Pesquisa de campo; análise laboratorial

Palavras-chave: 50400002- 50403001 andrological; Gossypol; Ram; Reproduction; Sperm motility.

Ano: 2012

URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/12963

Ploidy influences on metabolic substrate deposition of rainbow trout

Gomes, Aline Dal`Olio; Vieira, Vanessa Aparecida Rocha Oliveira; Tabata, Yara Aiko; Takahashi, Neuza Sumico; Moreira, Renata Guimarães; Ribeiro, Cristiele Silva.

Triploid fish are usually sterile. Thus, the energy and nutrients intended for sexual maturation may be available to enhance flesh quality and physical growth. The present study aimed to investigate differences in the metabolic substrates, lipids and proteins, between storage tissues from diploid and triploid female rainbow trout. Monthly, metabolic substrates were quantified in liver, muscle, and ovaries, which were collected during the first reproductive cycle. In general, it was possible to identify a seasonal and similar deposition of metabolites in different tissues of 2n and 3n females, mainly at early stages of gonadal maturation. However, from the stages 5-6, the ovaries showed great differences between ploidies, with higher concentration of lipids...

Comportamento diário e reprodutivo de fêmeas bovinas mestiças (Zebu x Holandesa) portadoras de dermatite digital - DOI: 10.4025/actascianimsci.v31i2.499

Palavras-chave: Metabolism; Reproduction; Triploidy; Somatic indexes; Oncorhynchus mykiss..

Ano: 2019

URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/44580

Silva, Luiz Antônio Franco da; UFG; Franco, Leandro Guimarães; UFG; Ferreira, Allice Rodrigues; UnB; Bernardes, Karollina Moraes; Autônoma; Costa, Anna Carolina da; UFG; Rabelo, Rogério Elias; UFG.

No presente estudo avaliaram-se aspectos relacionados ao comportamento diário e reprodutivo de fêmeas bovinas mestiças (Zebu x Holandesa) portadoras de dermatite digital, durante um período de 24 meses. Os bovinos foram distribuídos em três grupos (GI, GII, GIII), compostos por dez animais cada. No GI foram alocadas fêmeas bovinas portadoras de dermatite digital na forma erosiva, no GII na forma verrucosa eo GIII composto por animais clinicamente saudáveis. No comportamento diário e alimentar, os animais foram observados no piquete e durante a ordenha. Avaliaram-se a atitude do animal, se em posição quadrupedal ou decúbito, período de alimentação, frequência de ingestão de água, tempo de ruminação e ócio. Quanto ao comportamento reprodutivo, estudaram-se o...

Palavras-chave: 5 5.04.00.00-2 Zootecnia bovinos; Casco; Doença podal; Reprodução 5 5.04.00.00-2 Zootecnia cattle; Hoof; Foot disease; Reproduction.

Ano: 2009

URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/499

Post-natal development of rats` offspring treated with the ethanol extract of Neem leaves (Azadirachta indica A. Juss) during pregnancy and lactation

Biological Sciences

Silva, Vanessa Carla Lima da; Silva, Francine Maria de França; Meunier, Isabelle Maria Jacqueline; Silva, Tânia Maria Sarmento da; Silva Júnior, Valdemiro Amaro da; Maia, Frederico Celso Lyra.

Teratogenicity and developmental abnormalities in the offspring of female rats that ingested ethanol extract of Neem plants during pregnancy and lactation period were assessed. Twenty-four female Wistar rats were randomly distributed in control group and in three experimental groups and treated during the 4th, 5th, and 6th day of pregnancy. After birth, the lactating females received, by gavage, 65, 135 and 200 mg kg-1 of Neem ethanol extract, during 15 days. Results show, there was no significant difference in body mass index of neonatal rats in the 4 groups evaluated, whereas mean rate of offspring survival was 79.4%. Hair growth, incisor teeth eruption, ear detachment, eyelid opening, and spontaneous ambulation were similar for all groups. Likewise,...