Rearing Techniques
Mostrando 1-12 de 22 artigos, teses e dissertações.
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1. A new device to autonomously feed individualized mantids on extended periods of time
ABSTRACT Mantises can live for many months, are naturally voracious, and feed invariably on live prey. Many species have a propensity for cannibalism and cannot be kept together for most of their life cycle, which makes large-scale rearing typically time-consuming, thus easily becoming prohibitive. This is particularly true for early instars, because they ar
Rev. Bras. entomol.. Publicado em: 13/01/2020
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2. Standard culture of Paratanytarsus grimmii Schneider, 1885 (Diptera: Chironomidae), for its use in toxicity bioassays.
Resumo O manejo e o uso de espécies nativas em condições de laboratório são as principais dificuldades para a proposta de uso de espécies em bioensaios. O presente estudo mostrou os resultados acerca do manejo sob condições controladas de Paratanytarsus grimmii (Diptera: Chironomidae), espécie partenogenética com ampla distribuição geográfica. F
Braz. J. Biol.. Publicado em: 02/12/2019
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3. Production Indicators and Levels of Corticosterone in Pullets Treated with Beak-Trimming Protocols
ABSTRACT The aim of this study was to compare the effects of beak trimming by hot blade or infrared radiation on production indicators and plasma levels of corticosterone in pullets. During the rearing phase, an entirely random delineation was used a 2 x 3 factorial design (two different techniques for beak trimming x 3 strains), a total of six treatments wi
Rev. Bras. Cienc. Avic.. Publicado em: 2018-03
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4. Performance of Commercial Laying Hen Submitted to Different Debeaking Methods
ABSTRACT Among the several factors required in breeding laying hens, debeaking is a factor that interferes with batch performance and affects animal welfare. Thus, the objective of this study was to evaluate three different debeaking procedures and to verify the best technique to be used. For this, the performance of the birds, the incidence of cannibalism,
Rev. Bras. Cienc. Avic.. Publicado em: 2017-12
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5. Artificial diet for laboratory rearing of Condylorrhiza vestigialis (Guenée, 1854) (Lep.: Crambidae)
ABSTRACT The Brazilian Poplar Moth, Condylorrhiza vestigialis (Guenée), compromises the wood productivity of poplar trees (Populus sp.), mainly affecting the matchstick industry in southern Brazil. Considering the lack of information on rearing techniques for this insect, the objective of this study was to develop an artificial diet to rear C. vestigialis w
An. Acad. Bras. Ciênc.. Publicado em: 09/02/2017
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6. Pathological Aspects of a Subclinical Marek's Disease Case in Free-Range Chickens
Abstract The present report aims at describing the occurrence of Marek's Disease (MD) in a free range poultry farm based on macroscopic and microscopic lesions. For this purpose, seven free-range chickens were evaluated by gross and microscopic examination. Tumor lesions were observed in the liver and ovary, in addition of enlarged kidney and spleen, skin th
Rev. Bras. Cienc. Avic.. Publicado em: 2016-03
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7. New approaches for growth improvement in pejerrey Odontesthes bonariensis (Valenciennes, 1835) culture (Atherinomorpha: Atherinopsidae)
The pejerrey is the most important recreational species in shallow temperate lakes and reservoirs of Argentina and the attempts to develop its culture have started a century ago. A common constraint of pejerrey aquaculture is its poor growth under traditional intensive rearing techniques. The aim of this study was to evaluate the possibility to achieve and m
Neotrop. ichthyol.. Publicado em: 24/03/2015
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8. Efficiency of the induced mating technique for Toxorhynchites theobaldi (Diptera, Culicidae)
Toxorhynchites mosquitoes play important ecological roles in aquatic microenvironments, and are frequently investigated as potential biological control agents of mosquito disease vectors. Establishment of Toxorhynchites laboratory colonies can be challenging because for some species, mating and insemination either do not occur or require a prohibitive amount
Rev. Bras. entomol.. Publicado em: 2015-03
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9. The use of morphological and histological features as nutritional condition indices of Pagrus pagrus larvae
Morphometrical and histological techniques were employed to characterize Pagrus pagrus larvae nutritional condition. Larvae were reared in laboratory under controlled conditions with the main objective of testing whether these methodologies allowed finding differences between larvae from different feeding treatments. Once yolk was consumed (three days after
Neotrop. ichthyol.. Publicado em: 2013-09
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10. Biologia reprodutiva de rainhas e machos de Tetragonisca angustula (Hymenoptera: Meliponini) / Reproductive biology of the queens and males of Tetragonisca angustula (Hymenoptera: Meliponini)
The stingless bees (Hymenoptera: Meliponini)present a haplodiploid sex determination system with complementary sex determination in a single locus. Such a system is a large genetic load for the group and thus the genetic diversity of male\ s aggregations near the nests is essential to minimize the chances of inbreeding. The interactions among the stingless b
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 15/08/2012
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11. Sensory, morphometric and proximate analyses of Nile tilapia reared in ponds and net-cages
The present study evaluated the sensory, proximate and morphometric differences of pond and net-cage-reared Nile tilapia (Oreochromis niloticus). Thirty samples from ponds and 30 samples from net-cages were used. Morphometric measurements were performed in fish and the fillets; proximate composition of the fillets was determined; and sensory analysis of the
Revista Brasileira de Zootecnia. Publicado em: 2012-07
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12. La investigación cualitativa como práctica social, histórica y política orientada por principios
This paper presents the learning products of a permanent reflective process about the research method used in the project "Towards a construction of an educational proposal of child rearing founded in a dialog of knowledge", conducted in Medellín (Colombia) from 2007 to 2009. At the beginning it was defined a Participatory Action Research method, but as the
Physis: Revista de Saúde Coletiva. Publicado em: 2011-12