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Effects of intraspecific competition and food deprivation on the immature phase of Ascia monuste orseis (Lepidoptera, Pieridae) Iheringia, Sér. Zool.
Barros-Bellanda,Helen C. H.; Zucoloto,Fernando Sérgio.
The effect of intraspecific competition for food on larvae and of food deprivation for 24 h on 2nd and 4th instars of Ascia monuste orseis (Godart, 1819) was investigated. Intraspecific competition for food during the immature phase leads to long pupation time, high larval mortality, reduced adult weight, and reduced number of eggs per female. In food deprivation experiments, the major differences in A. monuste orseis performance were long pupation time in the group that was deprived during the 2nd instar; and a negative effect on reproduction in the group that was deprived during the 4th instar, with reduced adult weight. Both food deprived periods tested are critical, and deprivation during the 2nd instar seems to have an effect as drastic as during the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Compensatory behaviour; Food deprivation; Insecta.
Ano: 2002 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212002000100009
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How Does Protein Malnutrition or Food Deprivation Interfere with the Growth of the Epiphyseal Plate in Animals? International Journal of Morphology
da Silva,Karina de Carvalho; Silva,Camilla Rodrigues de Souza; Costa,Rita de Cássia da Silva; de Moraes,Sílvia Regina Arruda.
the aim of this study was to conduct a literature review of impacts of protein malnutrition and/or early food deprivation on the formation of the growth plate in young animals. A search was performed using the databases PubMed/MEDLINE, LILACS, SciELO and the Cochrane Library, without language restrictions or any limit as to year. Initially, 150 articles were identified, however, after application of the inclusion and exclusion criteria only five remained. In three studies the nutritional stress was due to protein malnutrition, another due to fasting and the fifth was due to food restriction. All the studies had some methodological omissions. The studies included in this review-demonstrated corroboration in the results obtained, regardless of whether the...
Tipo: Journal article Palavras-chave: Epiphyseal plate; Bone growth; Protein malnutrition; Food deprivation.
Ano: 2013 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022013000200037
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Morphological changes of gonad and gene expression patterns during desexualization in Dugesia japonica (Platyhelminthes: Dugesiidae) Rev. Bras. Zool.
Dong,Zimei; Shi,Changying; Chu,Gengbo; Dong,Yanping; Chen,Guangwen; Liu,Dezeng.
ABSTRACT Planarians, the representatives of an ancient bilaterian group with complex reproductive system and high regenerative capabilities, are model system suitable for studying the basic molecular requirements for the development of the reproductive system. To further explore the morphological changes of the gonads during desexualization and the molecular events of the genes controlling the reproductive system development in planarians, we have investigated the histological changes of ovary and testis by paraffin section and the expression patterns of reproductive-related genes by the quantitative real-time PCR in Dugesia japonica Ichikawa & Kawakatsu, 1964, upon starvation. The four genes, Djprps, DjvlgA, DjvlgB and Djnos, have been selected. The...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Planarian; Food deprivation; Germ cells; Reproductive system.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702018000100335
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