Multiple Mating
Mostrando 1-12 de 165 artigos, teses e dissertações.
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1. Typology of beef production systems according to bioeconomic efficiency in the south of Brazil
RESUMO: O objetivo deste estudo foi avaliar a eficiência bioeconômica em sistemas de produção de bovinos de corte no sul do Brasil. A pesquisa foi realizada com 33 pecuaristas que operam com sistemas de produção baseado em ciclo completo, em áreas maiores ou iguais a 900 hectares. As respostas foram classificadas em dois fatores: tecnologia (TEC) e g
Cienc. Rural. Publicado em: 05/09/2019
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2. Partum and postpartum characteristics on the postpartum rebreeding in beef cattle
ABSTRACT The objective was to evaluate the influence of calving and postpartum characteristics, measured in different genetic predominance, on the postpartum rebreeding. Were evaluated 437 partum from cows that received feeding management consisting of a forage base of the native field and the mating season consisted of 90 days. The measurements were used fr
An. Acad. Bras. Ciênc.. Publicado em: 25/06/2018
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3. Observations on the mating behavior of the eastern lowland olingo Bassaricyon alleni (Carnivora: Procyonidae) in the Peruvian Amazon
ABSTRACT The behavior of wild olingos is poorly known. From May-Jul 2015, I surveyed nocturnal mammals in southeast Peru and recorded the behavior of olingos. Multiple olingos were observed in close proximity on four occasions: two occasions in which multiple olingos were feeding on the inflorescences of a Parkia pendula tree; an adult and immature olingo tr
Zoologia (Curitiba). Publicado em: 14/07/2016
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4. Uso de análise multivariada para determinar a associação do desempenho reprodutivo de machos suinos com as caracteristicas seminais / Use of multivariate analyses to determine the association of boar fertility with semen traits
The application of new approaches that measure certain sperm motion characteristics and their association with boar fertility has shown a recent increase. Computer-assisted semen analysis (CASA) offers standardized assessment of multiple sperm motion parameters and it is plausible that the combination of these parameters with morphological sperm defects may
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2012
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5. Multiple queens in founding colonies of the neotropical ant Pachycondyla striata smith (Formicidae: Ponerinae)
In social insects, the typical mode of colony foundation occurs when a single queen is inseminated by a male and establishes a new colony, although we can find interspecific and intraspecific variations in queen number and queen-mating frequencies in a single colony. This study aimed to verify the queen number in Pachycondyla striata (Smith) colonies and to
Neotropical Entomology. Publicado em: 2011-06
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6. Desenvolvimento ovariano e influência da cópula na maturação dos ovários de Diaphorina citri Kuwayama (Hemiptera: Psyllidae)
As many other insects with a restricted diet, the citrus psyllid Diaphorina citri Kuwayama, which vector the causing agent of the Huanglongbing, the bacteria Candidatus Liberibacter spp., is intimately associated with symbiotic microorganisms. These mutualist symbionts play a key role on their host nutritional ecology, and are vertically transmitted to the p
Neotropical Entomology. Publicado em: 2010-06
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7. High levels of genetic differentiation and selfing in the Brazilian cerrado fruit tree Dipteryx alata Vog. (Fabaceae)
Dipteryx alata is a native fruit tree species of the cerrado (Brazilian savanna) that has great economic potential because of its multiple uses. Knowledge of how the genetic variability of this species is organized within and among populations would be useful for genetic conservation and breeding programs. We used nine simple sequence repeat (SSR) primers de
Genetics and Molecular Biology. Publicado em: 29/01/2010
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8. Unthreading Terezas and embroidering Bicudas: the girl in the back yard and the foldings of her haversack / Desfiando Tereza e bordando Bicudas: a menina no quintal e as dobras do seu jornal
In this research, I explore the narratives of Tereza Bicuda from my repertoire of childhood memories and aesthetic experiences. Tereza Bicuda figure from a set of narratives that circulate from the colonial era to the present day in the region of Central Brazil. In a multiple perspective and connected to the context of visual culture, I seek from the persona
Publicado em: 2010
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9. Diversidade genética em agregações de Nannotrigona testaceicornis Cockerell, 1922 (Hymenoptera, Apidae, Meliponini) através de marcadores microssatélites / Genetic diversity in aggregations of Nannotrigona testaceicornis Cockerell, 1922 (Hymenoptera, Apidae, Meliponini) by using microsatellites markers
As abelhas são insetos da ordem Hymenoptera e taxonomicamente estão reunidas na superfamília Apoidea. Os Meliponini, da subfamília Apinae, são popularmente chamados abelhas indígenas sem ferrão e algumas espécies são essenciais para a polinização de plantas selvagens e lavouras. As abelhas Nannotrigona testaceicornis, utilizadas neste trabalho, s�
Publicado em: 2010
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10. Estrutura e funcionamento dos espermatóforos de Doryteuthis plei (Mollusca: Cephalopoda) e reavaliação da reação espermatofórica dos cefalópodes / Spermatophore structure and functioning in Doryteuthis plei (Mollusca: Cephalopoda), and a reappraisal of the cephalopod spermatophoric reaction
Male coleoid cephalopods produce elaborate spermatophores, which are transferred to the female during mating. These spermatophores are capable of functioning autonomously and extracorporeally, undergoing complicated changes during the so-called spermatophoric reaction, i.e., a complex process of evagination of the spermatophoric tunics and membranes that, ul
Publicado em: 2010
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11. Avaliação da endogamia em um programa de melhoramento de codornas de corte / Avaliation of inbreeding from a meat quail breeding program
A total of 17,985 animals, within 8,746 quails from UFV1 strain and 9,239 from UFV2 strain, belonging to the Poultry Breeding Program of UFV were used to evaluate the effect of inbreeding on body weight characteristics at 28 and 42 days of age and egg production. The MTDFNRM (Multiple Trait Derivative Free Numerator Relationship Matrix) software, a system co
Publicado em: 2009
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12. Male reproductive behavior and physiology of Podisus nigrispinus (Dallas) (Hemiptera : Pentatomidae) / Comportamento e fisiologia reprodutiva do macho de Podisus nigrispinus (Dallas) (Hemiptera : Pentatomidae)
A realização de múltiplas e longas cópulas por Podisus nigrispinus (Dallas) (Hem.: Pentatomidae) tem sido uma incógnita. Assim, este trabalho teve como objetivo investigar o comportamento reprodutivo de macho de P. nigrispinus. A cópula foi estudada em função do tamanho do macho, status prévio de acasalamento do macho e risco de predação (i). Tamb
Publicado em: 2008