Abstract The possible interference of resistant pest's populations to insecticides in natural enemies in the action thas not been clarified yet. Thus, this study aimed to evaluate Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae) performance on Spodoptera frugiperda (J. E. Smith) (Lepidoptera...
Asad, F;
Qamer, S;
Ashraf, A;
Ali, T;
Shaheen, Z;
Akhter, S;
Nisar, A;
Parveen, A;
Cheema, N;
Mustafa, G.
Synthetic androgens (male hormones) administered to fish nursery are being used in aquaculture to avoid sexual differentiation and unwanted spawning at the eggs or the first feeding fry stage of fish. Present trial was conducted with the aim to produce male common carp (Cyprinus carpio) by egg immersion ...
The most used reproduction method in beef cattle in Brazil is natural breeding, which corresponds to 84% of calves born. Breeders adopt the bull:cow ratio of 1:25, which results in a sub utilization of bulls, making natural breeding antieconomic and underestimating the reproductive abi...
Abstract We studied the reproductive biology of Otocinclus vittatus in the southern Pantanal, Brazil. A total of 1066 fishes were analyzed (490 males, 488 females and 88 individuals of undetermined sex), sampled with a rectangular sieve and a seine net from February/2009 to January/2011. Variations in t...
Abstract In order to evaluate aspects of reproductive biology of the "pequira" ( Bryconamericus stramineus) in the elevator of the Funil Dam - MG, fish capture was carried out from November 2008 to January 2009 and 317 individuals were collected. The mean standard length (SL) of the population was 4.96 ...
Considerando que a Psicologia Social auxilia para que práticas e ações sociais sejam problematizadas, este estudo tem como objetivo evidenciar como os sentidos de si e do Outro identificados em narrativas de homens autores de violência sustentam e justificam a ação violenta cometida. Para tal, quat...
Abstract Analysis of abundance and population structure of Plesionika narval was performed on data concerning 5,255 specimens obtained from 62 fishing sets carried out off the Madeira archipelago (Northeastern Atlantic) between 2004 and 2008 in a depth range from 101 to 350 m. Abundance ranged from 0.01...
Abstract Population and reproductive aspects allow the knowledge and understanding of population dynamics and the influence of environmental factors, in addition to ensure the success of a species continuity. Thus, the aim of this study was to analyze population and reproductive traits of the species Hyp...
Brasil,
Characidae/fisiología,
Fertilidad,
Gónadas/crecimiento & desarrollo,
Lluvia,
Reproducción,
Ríos,
Estaciones del Año,
Razón de Masculinidad,
Temperatura,
Movimientos del Agua
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 Septembe...
Introducción: El cáncer de próstata es una neoplasia en la cual la comunicación y el conocimiento de la población puede ayudar al diagnóstico temprano y tratamiento temprano. El objetivo de este estudio fue investigar que conocen los pacientes y acompañantes sobre los procesos de comunicación edu...
