Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 19
Primeira ... 1 ... Última
Imagem não selecionada

Imprime registro no formato completo
Body condition score to predict the postpartum fertility of crossbred beef cows Repositório Alice
MORAES, J.C.F.; JAUME, C.M.; SOUZA, C.J.H. de.
The relationship between changes in body condition score (BCS) during the postpartum and fertility in beef cows suckling calves under extensive conditions were investigated. Cows were subjected to four BCS evaluations over the postpartum period, starting around one month after calving. In the second evaluation cows were treated with medroxy-progesterone acetate impregnated pessaries and received an injection of estradiol benzoate. At the third evaluation, pessaries were removed and calves were separated from the cows for 96 hours, during which time estrous was observed twice a day, and animals artificially inseminated 12 hours after detection. When calves returned to their dams, bulls were introduced until a 60-day mating period was reached. The...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Bos taurus; Artificial insemination; Breeding season; Pregnancy rates; Inseminação artificial; Estação reprodutiva; Taxa de prenhez.
Ano: 2007 URL: http://www.alice.cnptia.embrapa.br/handle/doc/126204
Imagem não selecionada

Imprime registro no formato completo
Body condition score to predict the postpartum fertility of crossbred beef cows PAB
Moraes,José Carlos Ferrugem; Jaume,Carlos Miguel; Souza,Carlos José Hoff de.
The relationship between changes in body condition score (BCS) during the postpartum and fertility in beef cows suckling calves under extensive conditions were investigated. Cows were subjected to four BCS evaluations over the postpartum period, starting around one month after calving. In the second evaluation cows were treated with medroxy-progesterone acetate impregnated pessaries and received an injection of estradiol benzoate. At the third evaluation, pessaries were removed and calves were separated from the cows for 96 hours, during which time estrous was observed twice a day, and animals artificially inseminated 12 hours after detection. When calves returned to their dams, bulls were introduced until a 60-day mating period was reached. The...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bos taurus; Artificial insemination; Breeding season; Pregnancy rates.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2007000500018
Imagem não selecionada

Imprime registro no formato completo
Breeding biology of Tyrannus melancholicus (Aves: Tyrannidae) in a restinga reserve of southeastern Brazil Rev. Bras. Zool.
Daros,Hermes; Dutra,William Barbosa; Duca,Charles.
ABSTRACT Existing knowledge of the breeding success and life history characteristics of most Neotropical bird species is scarce. Here, we help fill this gap by analyzing aspects of the breeding biology of the Tropical Kingbird Tyrannus melancholicus (Vieillot, 1819), which is a good model for this kind of study as it is a common species occurring in various environments, including urban areas, but little is known about its life history. We provide results concerning the breeding period, clutch size, incubation and nestling periods, description of nests, eggs and nestlings, and the plants used for nest sites by this species. Fifty-four nests were monitored over two seasons (2012-2014) in a protected area in southeastern Brazil. Nesting began at the end of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Atlantic Forest; Breeding season; Clutch size; Life history; Tropical Kingbird.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702018000100308
Imagem não selecionada

Imprime registro no formato completo
Breeding season effects on reproductive performance, body weight and milk production of native goats grazing caatinga range in Ceara. Repositório Alice
BURSTEIN, H. J.; JOHNSON, W. L.; ROBB, T. W.; BARROS, N. N..
Um ensaio utilizando 54 cabras das racas nativas nativas e SRD foi desenvolvido para avaliar-se o efeito da estacao de monta no comportamento reprodutivo e ponderal e na producao de leite. Os tratamentos(TRT) foram os seguintes: (A) a metade das cabras escolhidas ao acaso foram cobertas em out. 1983(epoca seca); (B) a outra metade em janeiro 1984 (epoca chuvosa, considerada tradicional). As paricoes ocorreram em marco(epoca chuvosa) e junho (epoca seca) para TRTs (A e B). TRT(A) teve uma media de ganho de peso maximo maior do que TRT(B); 1.7 vs 1.3(P<.05). TRT(A) produziu, em media, mais leite total(P<.01) do que TRT(B), 55.8 vs 22.9Kg/caabeca/lactacao. Este resultado pode ser atribuido a duracao de lactacao porque nao houve uma diferenca (P>.05)...
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Estação de monta; Brasil; Ceara; Breeding season; Reproductive efficiency; Native caatinga; Brazil; Caprino; Produção animal; Pastagem nativa; Caatinga; Desempenho; Eficiência reprodutiva; Milk production; Goats; Body weight; Reproductive performance; Breeding season.
Ano: 1986 URL: http://www.alice.cnptia.embrapa.br/handle/doc/514502
Imagem não selecionada

Imprime registro no formato completo
Desempenho de bezerros pantaneiros criados em pastagens nativas do Pantanal Sul-Mato-Grossense. Repositório Alice
ALVES, F. V.; SANTOS, S. A.; JULIANO, R. S.; BRITO, M. C. B. DE.; SOUZA, J. C. DE.; ABREU, U. G. P. de.
O objetivo deste experimento foi avaliar a influência do sexo, mês de nascimento e idade da vaca sobre o ganho de peso e a relação vaca/ bezerro de bovinos Pantaneiros mantidos em pastagens nativas do Pantanal Sul-Mato-Grossense. The aim of this trail was to evaluate the influence of gender, birth month and calf age on the calves weight gain and cow/calf ratio of Pantaneiro beef cattle raised on native pastures of Sul-Mato-Grossense Pantanal, Brazil.
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Bos taurus taurus; Bovino de corte; Estação de monta; Nhecolândia; Peso vivo; Raças naturalizadas; Beef cattle; Breeding season; Naturalized breed; Nhecolândia; Live weight.
Ano: 2010 URL: http://www.alice.cnptia.embrapa.br/handle/doc/868349
Imagem não selecionada

Imprime registro no formato completo
Does the reproductive season account for more records of birds in a marked seasonal climate landscape in the state of São Paulo, Brazil? Pap. Avulsos de Zool. (São Paulo)
Cavarzere,Vagner.
Investigators have reported that birds from temperate regions are more detectable during their breeding seasons, which should be used to adequately survey avifaunas. In the state of São Paulo, southeastern Brazil, the rainiest months of the year are usually associated with a peak in the reproduction of birds. To test the hypothesis that birds are equally detectable throughout the year, I conducted transect counts of birds in a predominantly open Cerrado landscape in São Paulo during 2005 and 2006. There was no significant difference in the number of species or individuals between breeding (rainy) and nonbreeding (dry) seasons; 24% of the species with > 50 contacts was likely to be recorded more often in a particular season. Unlike temperate regions,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Breeding season; Neotropical region; Sampling period; Seasonal abundance; Seasonal climate; Seasonal species richness.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492013001800001
Imagem não selecionada

Imprime registro no formato completo
Eficiência produtiva de cabras nativas do tipo Sem Raça Definida (SRD) submetidas a estação de monta em diferentes épocas do ano. Repositório Alice
NUNES, J. F.; SIMPLICIO, A. A.; RIERA, G. S..
1981
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Caprino; Estacao de monta; Raça nativa; Caprino; Espécie nativa; Reprodução animal; Acasalamento; Performance; Eficiência reprodutiva; Goat; Mating systems; Reproductive performance; Breeding season; Native species.
Ano: 1981 URL: http://www.alice.cnptia.embrapa.br/handle/doc/514845
Imagem não selecionada

Imprime registro no formato completo
External factors determining breeding season in the red mangrove crab Goniopsis cruentata (Latreille) (Crustacea, Brachyura, Grapsidae) on the São Paulo State northern coast, Brazil Zoologia
Cobo,Valter José; Fransozo,Adilson.
This study evaluated the influence of the water and air temperatures, pluviosity and photoperiod on the breeding season of Goniopsis cruentata (Latreille, 1803), in Ubatuba littoral, southeastern Brazilian coast. Monthly collections were conducted out from January/95 to December/96 in an estuarine area from 23º29'10"-23º29'45"S to 45º09'10"-45º10'00"W. Water and air temperature variation showed the highest correlation coefficient with the frequency of ovigerous females, r² = 0.73 and 0.68, respectively. However, an analysis of the set of environmental variables, revealed the photoperiod as the factor of highest association with the ovigerous frequency (r² = 0.68). This degree of association allow us to suggest that the breeding season duration of G....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Breeding season; Goniopsis cruentata; Grapsidae; Reproduction; Ubatuba.
Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752003000200007
Imagem não selecionada

Imprime registro no formato completo
Interannual fluctuations in spring pelagic ecosystem productivity in the Bay of Biscay (northeast Atlantic) measured by mesozooplankton aspartate transcarbamylase activity and relationships with anchovy population dynamics ArchiMer
Bergeron, Jean-pierre; Koueta, Noussithe; Masse, Jacques.
The French part of the continental shelf of the Bay of Biscay (northeast Atlantic) is the habitat of an anchovy (Engraulis encrasicolus L.) population of scientific interest because of its economic importance and the trend towards greater interannual fluctuations in its abundance, particularly as a consequence of variations in recruitment. Each year a 1-month survey of this population and its pelagic environment is undertaken. Among the descriptors of ecosystem function characterized, mesozooplankton aspartate transcarbamylase (ATC) activity is measured with the goal of defining overall productivity of the mesozooplankton communities. Diverse physical forcing factors are responsible for the enhancement of productivity in the Bay of Biscay, and their...
Tipo: Text Palavras-chave: Aspartate transcarbamylase; Anchovy biomass; Breeding season; Mesozooplankton; Pelagic fisheries; Bay of Biscay.
Ano: 2013 URL: http://archimer.ifremer.fr/doc/00128/23889/21849.pdf
Imagem não selecionada

Imprime registro no formato completo
O efeito da estação de monta sobre produção das cabras nativas no sertão cearense. Repositório Alice
BURSTEIN, H. J.; ROBB, T. W.; BARROS, N. N.; JOHNSON, W. L..
1985
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Estação de monta; Raça nativa; Brasil; Ceara; Sertão; Reproductive efficiency; Brazil; Caprino; Cabra; Produção leiteira; Acasalamento; Lactação; Espécie nativa; Eficiência reprodutiva; Goats; Milk production; Lactation; Breeding season; Native species; Wilderness areas.
Ano: 1985 URL: http://www.alice.cnptia.embrapa.br/handle/doc/515067
Imagem não selecionada

Imprime registro no formato completo
Objetivos e critérios de seleção em bovinos de corte em fase de cria. Infoteca-e
CARNEIRO JUNIOR, J. M.; ASSIS, G. M. L. de.
A pecuária de corte é caracterizada pelas fases de cria, recria e engorda, que podem ser exploradas como sistemas de produção isolados ou combinados. A cria, período que compreende da cobertura até a desmama, é considerada a fase mais importante da vida dos bovinos, pois o bezerro precisa alcançar, no intervalo de 7 a 8 meses, de 25% a 50% do peso final de abate. Nessa fase, preconiza-se não só a qualidade dos bezerros, mas também a condição corporal e saúde das vacas, dos touros e das novilhas que irão substituir as vacas de descarte. O objetivo de quem investe na cria de bovinos de corte é obter de cada vaca do rebanho um bezerro pesado e saudável por ano. Para obtenção de bezerros de qualidade é necessário o investimento em três pilares essenciais: o...
Tipo: Artigo de divulgação na mídia (INFOTECA-E) Palavras-chave: Período de cria; Manejo sanitário; Gado de corte; Eficiência reprodutiva; Nutrição animal; Rentabilidade; Melhoramento genético animal; Seleção; Cruzamento animal; Beef cattle; Reproductive performance; Animal nutrition; Profitability; Animal breeding; Artificial selection; Crossing; Breeding season; Ganado de carne; Desempeño reproductivo; Nutrición animal; Rentabilidad; Cruce de animales; Selección artificial; Cruce; Época de apareamiento.
Ano: 2016 URL: http://www.infoteca.cnptia.embrapa.br/handle/doc/1068959
Imagem não selecionada

Imprime registro no formato completo
Population and reproductive parameters of the red-tailed catfish, Phractocephalus hemioliopterus (Pimelodidae: Siluriformes), from the Xingu River, Brazil Neotropical Ichthyology
Freitas,Tiago Magalhães da Silva; Montag,Luciano Fogaça de Assis.
ABSTRACT A field study of the sex ratio, length-weight ratio, body size at first gonadal maturation, and the breeding season of the red-tailed catfish, Phractocephalus hemioliopterus, was carried out in the region of the middle Xingu River in the eastern Amazon basin. The fish were sampled quarterly from September 2012 to January 2014 using gillnets and long lines. The sex ratio was balanced, and while males and females were similar in standard length, the females were heavier than the males, on average. The males presented negative allometric growth, and the females, isometric growth. The estimated size at first maturity was 77.8 cm. The variation in the gonadosomatic index and the greater frequencies of mature specimens indicated a reproductive peak at...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Amazon basin; Breeding season; Fishery; Gonadal maturity; Growth pattern.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252019000200216
Imagem não selecionada

Imprime registro no formato completo
Population dynamics and reproductive phenology of a harvestman in a tidal freshwater wetland Anais da ABC (AABC)
IGLESIAS,PATRICIA P.; PEREYRA,MARTÍN O..
Abstract There is a great amount of ecological information for terrestrial arthropods in several types of habitats, but few studies have focused on populations living in tidal freshwater wetlands. During a two-year field survey, we studied the temporal dynamics of the harvestman Discocyrtus prospicuus inhabiting a freshwater wetland exposed to predictable tides and unpredictable floods. We also explored the effects of temperature, precipitation, and tide level on the population dynamics and reproductive phenology. Our findings are markedly different from those reported in other harvestman species living in different habitats and also from conspecific populations living in the mainland. Adults, subadults, and juveniles remain active throughout the year,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Abiotic factors; Breeding season; Phenology; Sex-ratio; Unpredictable floods.
Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000100710
Imagem não selecionada

Imprime registro no formato completo
Population structure and reproductive biology of Loricariichthys melanocheilus Reis &amp; Pereira, 2000 (Siluriformes: Loricariidae) in the rio Ibicuí, Brazil Neotropical Ichthyology
Zardo,Éverton Luís; Behr,Everton Rodolfo.
The objective of this study was to analyze population structure (spatial distribution, seasonal distribution and distribution by length classes, sex ratio and length-weight relationship) and aspects of the reproductive biology of Loricariichthys melanocheilus. Fish were sampled bimonthly using gillnets and trammel nets in lentic and lotic environments in the rio Ibicuí, between the years 2000 and 2001. Were collected 410 specimens: 230 females, 164 males and 16 specimens whose sex could not be determined. A greater number of specimens were collected in October/November and December/January and in lentic environments. The greater length classes had a higher amount of females (p < 0.05) and the sex ratio in all sampling periods was 1.38 females per male....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Armored catfish; Breeding season; Condition factor; Gonadosomatic index; Hepatosomatic index.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252015000200371
Imagem não selecionada

Imprime registro no formato completo
Probability of pregnancy in beef heifers Arq. Bras. Med. Vet. Zootec.
Faria,D.P.; Costa,M. D. da; Raidan,F. S. S.; Ruas,J. R. M.; Júnior,V. R. R.; Toral,F. L. B.; Aspiazú,I..
This study aimed to evaluate the influence of initial weight, initial age, average daily gain in initial weight, average daily gain in total weight and genetic group on the probability of pregnancy in primiparous females of the Nellore, 1/2 Simmental + 1/2 Nellore, and 3/4 Nellore + 1/4 Simmental genetic groups. Data were collected from the livestock file of the Farpal Farm, located in the municipality of Jaíba, Minas Gerais State, Brazil. The pregnancy diagnosis results (success = 1 and failure = 0) were used to determine the probability of pregnancy that was modeled using logistic regression by the Proc Logistic procedure available on SAS (Statistical..., 2004) software, from the regressor variables initial weight, average daily gain in initial weight,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Average daily gain; Beef cattle; Breeding season; Pregnancy rate.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352014000601795
Imagem não selecionada

Imprime registro no formato completo
Role of the Nutritional Condition of Breeding Anchovies in the Subsequent Recruitment to their Population in the Bay of Biscay (NE Atlantic) ArchiMer
Bergeron, Jean-pierre; Masse, Jacques.
The recruitment of marine fish populations is a central concern of fisheries scientists. Multiple research pathways have been explored, with emphasis of the causes of mortality affecting principally the early developmental stages of fish life. The small data set presented focuses on a feature often inadequately considered, i.e., the nutritional condition of the breeding parent fishes estimated from the levels of the RNA/DNA ratio determined in fish white muscle. This is applied to the European anchovy population inhabiting the French continental shelf of the North-east Atlantic Ocean. In four of the five years analysed, the annual recruitment shows a tight relationship with the mean values for the RNA/DNA ratio determined in the parent fish during the...
Tipo: Text Palavras-chave: Anchovy; Bay of Biscay; Breeding season; Recruitment; RNA/DNA ratio.
Ano: 2012 URL: http://archimer.ifremer.fr/doc/00109/22025/19684.pdf
Imagem não selecionada

Imprime registro no formato completo
Sexual behavior of the digger wasp Sphex ingens Smith (Hymenoptera, Sphecidae) Rev. Bras. entomol.
Souza,Carlos Alberto S.; Prezoto,Fábio; Lima,Mauro Sérgio C.S.; Pederassi,Jonas.
A species' mating system depends on its spatial distribution and temporal availability of mating opportunities, as well as on the resources that create these opportunities. In addition, for many species, courtship is driven by specific behaviors that precede and follow copulation. Although Sphex ingens is a taxonomically well known species of digger wasp, its ecology and behavior remain poorly known. Hence, we analyzed patterns and trends of sexual behavior, in order to understand whether courtship can persist in a polygamous mating system. We monitored by video wasp populations in Ilha Grande, southeastern Brazil. Based on the observed behaviors, we calculated stochastic probabilities with a Markov chain to infer on behavioral trends. We recorded four...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Copulation; Coercive copulation; Breeding season; Praia do Aventureiro; Solitary wasp.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262015000200107
Imagem não selecionada

Imprime registro no formato completo
The breeding biology and nest success of the Short-tailed Antthrush Chamaeza campanisona (Aves: Formicariidae) in the Atlantic rainforest of northeastern Brazil Rev. Bras. Zool.
Studer,Anita; Sousa,Marcelo Cardoso de; Barcena-Goyena,Begoña.
ABSTRACT We present the results of a 26-year study on the breeding biology of the Short-tailed Antthrush, Chamaeza campanisona (Lichtenstein, 1823) in an Atlantic rainforest remnant of northeastern Brazil (Alagoas/Pernambuco). We followed the fate of 38 nests, of which 19 failed, 11 succeeded and 8 had an unknown fate. The presence of most nests coincided with the beginning of the rainy season in March/April but nests with eggs and/or chicks were found throughout the year, with no records only in January. Nests were placed inside natural tree cavities that result from broken branches and trunks. Both parents were engaged in feeding the chicks, their diet consisted mainly of insects, spiders, and some unidentified berries. All nests had a clutch size of two...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Breeding season; Breeding success; Cavity-nesting; Nest characteristics; Mayfield; Linear model.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702018000100305
Imagem não selecionada

Imprime registro no formato completo
北海道十勝地方の鳥類7. 札内川上流部の鳥類 OAK
室瀬, 秋宏; 藤巻, 裕蔵; MUROSE, Akihiro; FUJIMAKI, Yuzo.
Palavras-chave: 落葉広葉樹林; 鳥類相; 繁殖期; 河川; Deciduous broad-leaved forest; Avifauna; Breeding season; Riparian habitat.
Ano: 1999 URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1281
Registros recuperados: 19
Primeira ... 1 ... Última
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional